Arduino s meter

3 Phase Smart Energy Meter using Arduino. The circuit of the Arduino energy meter: For the project I’m using an arduino ethernet because I happen to have a bunch laying around. The analog read on your arduino is basically a voltage meter. 2% of it’s voltage when fully charged (the time constant). Meter” International Journal of Engineering Science Invention Volume 7 Issue 5 Ver. Arduino, diy, Embedded Development, Optics, Telecom and Networking; 0; Fifer optics power meter is an important tool for debugging fiber optics networks. I want a PH reading , have a LCD display , can also provide a temperature information. Most cases people use cheap multimeters which can measure only voltage, current and resistance. Read Voltage from Eastron SDM230 Modbus Smart Energy Meter with Modbus Protocol using Arduino . Arduino for Ham Radio: A Radio Amateur's Guide to Open Source Electronics and Microcontroller Projects [ARRL Inc. Hi guys, welcome to today’s Arduino tutorial. Lesson 0 Pre-flight checkIs your Arduino and computer ready? Lesson 1 The "Hello World!" of electronics, a A DIY heart beat rate meter using Arduino and Easy Pulse Plugin sensor that displays heart rate on 7-segment LED displays. This entry was posted in Arduino and tagged 16 bit timer, Arduino, duty cycle, frequecy, interrupt, meter on March 6, 2011 by Darius. It's a fully assembled and tested microcontroller and physical computing board with through-hole headers attached. the Solution a $3 EC Meter for any Arduino. Arduino enthusiasts and makers looking for a project to keep them busy this weekend may be interested in a new Arduino powered DIY Gauss meter that once constructed can easily provide feedback on TDS Range: 0 ~ 1000ppm / TDS Accuracy: ± 10% F. Here is my third proyect, it´s an level meter with led via the Headphone out of my mixing console with the Arduino UNO. It's quite a remarkable little Review, Characterization and Testing of electric consumption meter PZEM-004 of Peacefair Serial communication with Arduino Nano & Module ESP8266 + Matrix led x4 MAX7912. What’s really neat is that the Gauss meter can only be turned on and off by placing a magnet on You've arrived at the support page for ARRL's Arduino for Ham Radio by Glen Popiel, KW5GP. In the next beta version, I will introduce some fun features using this S-Meter. Ultraviolet Light is used in many industrial and medical applications. Once everything is hooked up, we just needed to write a program that would read analog pin 0 on the arduino, since that's where we hooked up the output of the amplifier. What do you think should be improved, features for the hard/software, bugs you found If you don't know what Arduino is, start here: Arduino site Google it and you'll find a plethora of information and project sites. ” When Arduino is connected to a PC the actual distances can be read on the “serial monitor” The Arduino Ultrasonic distance meter prototype. The meter will enable us to measure Energy Units consumed by 3 phase loads. Speak in a normal voice about 6-8 inches from the microphone and the sound level meter matrix display should start scrolling. It is a compact digital voltmeter which can incisively measure input dc voltages in 0 to 55V range. It can also be a fun addition to for entertainment systems to get more connection to the music. Just search the internet for "Arduino clone" and you will find all kinds of boards that should work fine. //let's pars the string at each comma. All of Vernier’s Arduino sketches are available to view, download, or fork on GitHub. I have been using AVR's for quite some time now, but this is my first Arduino project, and for testing purposes I'll be using an Arduino Nano, but I have decided to use an 3,3 V Arduino Mini when it's time to solder everything togeather since I have a 3,3 V battery in the meter, and I am planing on transmitting the read data with either an Part 1: Develop an Algorithm in MATLAB Explore how you can start building Arduino projects with MATLAB Support Package for Arduino Hardware. 2% of the capacitance (when ct=c1). If that's true, you don't need radio signal (as @Andy wrote down below), but some infrared emitter/receiver setup. Each capacitance meter has an RC circuit with known resistor values and an unknown capacitor value. *FREE* shipping In this project we will use a normal Electret Condenser microphone with Arduino and try measuring the sound or pollution level in dB as close as possible to the Hi, Its a great experience to me as a new comer to Arduino projects. Easily measure the distance from your Arduino and build interesting devices with this project! Building a distance meter is a great learning There are plenty of other inexpenive options, as the Arduino UNO is one of the most-cloned hobby boards. The latest version of his project features an Arduino Nano, along with a pair of hall effect sensors, two reed switches, a LiPo charging circuit, and a 0. Measure some sound in similar conditions. (25 ℃) 3. Sorry for this but very rarely do I get a chance to use my college calculus!!!!! The most important debugging tool in any E. BITX40 S meter - YouTube www. In this tutorial I am going to show you how to build a Light meter with a big Nokia 5110 LCD display using Arduino. The integration of the Arduino and LCD provide the meter reading system with some automatic functions that are predefined. This project is using Arduino microcontroller with Hall's effect based water flow sensor (YF-S201) and LCD is to display output. I’ve just finished a little Arduino project. Incuctance meter in action. For that reason, today we will be building a distance meter using the Arduino and the HC-SR04 ultrasonic sensor. Take a standard sound meter and your Arduino sound meter. Arduino's internal pull-up resistors are used, therefore do NOT install an external Superb bit of code! Just what I was looking for. Hardware that you need : In this article, we are going to interface the GY-521 accelerometer with Arduino. Hams are exploring these powerful It's blue! It's thin! It's the Arduino Pro Mini! SparkFun's minimal design approach to Arduino. And finally, to try it out yourself, here’s a ZIP file with the Arduino project, Eagle circuit schematic, and PHP/HTML5 code. Dear friends welcome to the Arduino Light Meter Tutorial! Today we are going to learn how to build our own project to measure the intensity of the light in an environment. org. Your camera’s built-in reflective light meter is very accurate. Here is the device working on video (updated video in english using the Iphone Photostudio for arduino stand): This is an Arduino-compatible TDS sensor/Meter Kit for measuring TDS value of the water, to reflect the cleanliness of the water. Or, you can use the Thingiverse Mobile app found on Google Play and the Apple App Store . Arduino UNO project, Power Quality Meter, someone would call it’s PQ Monitor or PQ Analyzer. Water sensor brick is designed for water detection, which can be widely used in sensing rainfall, water level, and even liquid leakage. com in 1 categories. So I decided to write this article on how to build an LC meter using an ATmega328p chip and Arduino libraries. Also, the same meter can connect or disconnect the 3 phase load remotely. Introduction. The powerful, tiny power monitor shield for your Arduino Nano. Here you will find PDF files for the sketches and libraries that you can print out and study, as well as the sketch and library files themselves for use with the Arduino projects in this book. *FREE* shipping In this project we will use a normal Electret Condenser microphone with Arduino and try measuring the sound or pollution level in dB as close as possible to the As You could see from video it requires only one external resistor. I have changed the 'VU' to read "S units" and the display will be used as an S meter on the front Arduino Sketch for a Retro Analogue Meter Graphic on a Modern TFT Display: Another sketch from my collection that may be of interestDisplaying small digital 16 Dec 201619 Dec 201631 Jul 2018 If you have a Nextion display, and add a second arduino you can have a higher quality s-meter and multi-band signal monitor on your µBITx. e. ADXL335 acceleration If you don't know what Arduino is, start here: Arduino site Google it and you'll find a plethora of information and project sites. The Arduino will measure the voltage at the capacitor and record the time it takes to reach 63. 2: Block Diagram of Arduino Pro Mini based Transistor hfe Meter The hfe Sensor Unit allows the transistor’s input and outputcurrents to flow through it. 5nF. //this just makes the output easier to read. I had already published one blog devoted RMS voltage measureThe ACS712 Current Sensor with an Arduino. 0 volts when fully charged. 1 volt reference. A quick look online revealed that a number of wind speed meters or anemometers were available to purchase, ranging in price from just a few dollars up Arduino Verified account @arduino Arduino is an open-source hardware, software, and content platform with a worldwide community of over 30 million active users. With a working noise level meter and output control code, it was time to introduce the relay shield to the Arduino. Part 1: Develop an Algorithm in MATLAB Explore how you can start building Arduino projects with MATLAB Support Package for Arduino Hardware. A luv-o-meter is a device that measures a person’s potential to be a lover, and displays it on a graph of lights. . In this paper,energy meter s which is already installed at our houses are not replaced,but a small modification on the already installed meters can change the existing meters into smart meters. In gaming arcades, the luv-o-meter is usually a handle that a person grips, and his or her grip is measured either for its strength or its sweatiness. it consume less power,it is fastest and has two UARTS. , Glen Popiel KW5GP] on Amazon. The main category is Ham Radio - Arduino Projects that is about Amateur Radio Arduino Projects. com. I have earlier tested a cheap commercial fiber optic power meter a at Fiber optics power meter posting. An advanced multimeter, today, would have an ohmmeter, voltmeter, ammeter, capacitance meter, continuity tester, and possibly a temperature sensor. This is fine for digital, where our goal is avoiding overexposure (blown-out highlights). Make a luv-o-meter with analog inputs. Arduino UNO, main controller, was the interface between energy meter and Global System for Mobile communication Using an Arduino with an accelerometer, this handy display lets you know how “extreme” your driving really is! Modern cars tell us all kinds of information about how our vehicles are working and how you are driving. If your meter measures the sound as -25dB and the standard one as 50dB then you need to add 75dB to your sound meter readings to make them reference the same baseline point. Incuctance meter in action. Download Arduino VFO. It displays the resonance frequency together with the inductance. When you work with ratios, supply/Aref voltage becomes irrelevant. 5 mm audio jack. The device can be used in the physics lab for conducting various experiments on magnetism. Arduino based Digital Water Flow Meter using YF-S201 Hall Effect Sensor(DIY) Water Flow Meter is an automatic system for measurement of water flow. Arduino is an open-source hardware design, so everyone with enough knowledge can make their own boards. I designed this tutorial course to accompany the Arduino starter pack sold at the Adafruit webshop. GSM module plays a vital role in this project. 8: Implementation of wireless prepaid energy meter V. You can find the most up to date code at my github Doctor bit’s arduino energy monitor . Presented here is a handheld device that can be used to measure magnetic field using a Hall effect-based sensor. Another approach is to read the 1 watt IR pulses on the meter. In this tutorial we are going to see how to build a very useful Distance meter with a big Nokia 5110 LCD display using Arduino. Even the Teensy boards should be able to work for either the AutoCap or SWR Meter firmware. 4) A Open-Source Sensor Kit. 2% of total voltage. We’ve seen how we can get a UV reading using the SI1145 and an Arduino and display the results on the serial monitor. What do you think should be improved, features for the hard/software, bugs you foundLearn how to build three different Arduino capacitance meters that cover a range of commonly used capacitors from about 10 pF to over 3,900 uF. The basic Arduino enthusiasts and makers looking for a project to keep them busy this weekend may be interested in a new Arduino powered DIY Gauss meter that once constructed can easily provide feedback on Project Rationale A digital panel meter is a simple analog-input, digital display device. Arduino RCLF meter Sometimes when you make home electronic devices, you need to measure capacitance or inductance. Secret Arduino Voltmeter – Measure Battery Voltage - A little known feature of Arduinos and many other AVR chips is the ability to measure the internal 1. For Maker Faire 2013 I wanted to demonstrate the use of some of my widgets in a very simple way. Some of the projects are rather specialized to ham radio, but the introductory sections are written for anybody. Maybe if you use C1 at 1. The Arduino UNO is connected with a particle dust sensor (SDS011), Gas sensor (MQ-135), and a temperature and humidity sensor (DHT11). Building the Lux Meter. Next is a list of equipment for soldering, which help you to toughen up your prototype for the real world. HC SRO4 is a very cheap and effective ranging sensor which uses the principle of echo and ultrasonic sound to measure the distance between two points. Arduino 220V AC Power meter using PZEM004T Arduino 220v AC dimmer with remote control with code This Arduino project help you to control brightness of a 220V dimmable lamp or speed of ceiling fan (or any other electric motor) with an Part of Arduino For Dummies Cheat Sheet . 's toolbox is a trusty multimeter. By using an Arduino uno R3 and an AD 9850 or AD9851 DDS module a very stable VFO can be created to add a VFO to any crystal locked radio or to replace the VFO in an older VFO controlled radio that suffers from drift or add an external VFO. Connect the negative terminal of the water flow meter to Arduino GND. For this circuit, we are only going to build an ohmmeter, as to measure resistance. (1)Connect equipments according to the graphic,that is,the pH electrode is connected to the BNC connector on the pH meter board,and then use the connection lines,the pH meter board is connected to the ananlong port 0 of the Arduino controller. Starting with Teague’s DIY Arduino Watermeter, I’ve made some modifications to the code to compensate for the fact that I’m not using a Yellowjacket Arduino with WiFi, and the need to preserve precious… It’s intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments. ADXL335 is 3 axis accelerometer with analog output from Analog Devices. It's quite a remarkable little piece of "open hardware" electronic awesomeness that inspires unrelentingly. 3~5. However, if you are using Nextion LCD or TJC LCD, we recommend 1. 16/11/2014 · Homemade electronics, Arduino, microcontroller, AVR, Atmel, Microchip, PIC, analog electronics. You can use a normal Arduino Uno with an ethernet shield or a wifi shield. arduino s meter This has nice resolution, but if the system misses any pulses, you loose track of your total usage. I'm working on building a light meter out of an Arduino Uno and a TAOS TSL235R light-to-frequency converter. Post navigation ← Arduino 4 digits 7 segments LED countdown timer with buzzer Digital voltmeter – Arduino and PC (Visual C++) comunication via serial port → So these are the main components used for power factor measurement using Arduino and how to design power factor meter using Arduino development board. Common applications for Arduino microcontrollers include measuring CO2 indoors, in grow rooms, and in fish tanks. The range over which the Arduino can measure voltage can be increased by using two resistors to create a voltage divider. //factory defaults the Flow Meter Totalizer The first stage of this project was to create the basic Arduino wind speed monitor to check that the parts functioned as required and write the code. Interested in s-meter? Explore 0 projects tagged with 's-meter'. IN1, IN2, IN3 and IN4 pin of stepper motor driver is directly connected to D8, D9, D10, and D11 of Arduino. In this method we are using Arduino because it is energy efficient i. NET Framework application I wrote in C#. With just a handful of components, an Arduino, and a computer, you’ll learn to build and program everything from light shows to arcade games to an ultrasonic security system. Arduino Energy Meter - V2. My PC meter uses an Arduino microcontroller and receives the stats from a . Do-it-Yourself Thermal Imaging Cameras (AMG8833, MLX90640, M5Stack, Arduino IDE) and Flir one - Duration: 14:51. That means that each one Adafruit Industries, Unique & fun DIY electronics and kits FLORA - Wearable electronic platform: Arduino-compatible [v3] ID: 659 - FLORA is Adafruit's fully Arduino Microcontroller Projects You Can Build Today! The Arduino has become widely popular among hobbyists and ham radio operators. When a pulse occurs from energy meter, optocoupler is Open-source electronic prototyping platform enabling users to create interactive electronic objects. s famous for building their own test equipment. The problem is, i’ve hooked up the sensor to an oscilloscope for readings and the calculations from your code doesn’t match with my read values on oscilloscope, still…it’s a paradox as the serial values on arduino are correct (backed up by a clampmeter). Connecting the Laser to the Arduino. Fig. When you start to build your Arduino project, it’s hard to know what tools and equipment to buy. It can be applied to domestic water, hydroponic and other fields of water quality testing. The files are tuned for our quick prototype setup, but should also be helpful if you’re just getting started with hooking up a flow meter or Arduino WiFi data connectivity. Articles Related to Arduino Sound Meter With LED : Easy But Better. This one has used a simplified circuit, without blocks Open source Arduino blood glucose meter shield. Arduino is an open-source project that created microcontroller-based kits for building digital devices and interactive objects that can sense and control physical devices. arduino s meterDec 16, 2016 Ron Pa3FAT got the software going for the s-meter. 2% of the arduino’s voltage level. He has used a simplified circuit, without blocks or radiators. The cable on the left is the 5V power supply) Customers using SenseAir's K-30 CO2 sensor with an Arduino micro controller or the Raspberry Pi occasionally see the sensor "lock up" during use. Take advantage of this Arduino's small footprint and full Uno functionalities for your compact projects. 06/nov/2018- Arduino UNO project, Power Quality Meter, someone would call it’s PQ Monitor or PQ Analyzer. 2% charge, or, since they are proportional, 63. You can buy it as an evaluation kit with standard 2,5 mm connector. arduino. ArduinoWe have designed the Arduino CNC Shield to use all the pins that GRBL implemented. // Arduino with load cell // Put two known loads on the sensor and take readings. Review, Characterization and Testing of electric consumption meter PZEM-004 of Peacefair Serial communication with Arduino Nano & Module ESP8266 + Matrix led x4 MAX7912. Building the lux meter is simple. Arduino Based Patient Monitoring : Overview. It’s a shame to throw away the rest of the meter but for the price you get a good meter and maybe some other useful parts. Arduino™ Projects for Amateur Radio is filled with step-by-step microcontroller projects you can accomplish on your own—no programming experience necessary. 3v supply just as easily. Photoresistor to Arduino. meter IC, the Arduino will count it, increase the data and [3] Maitri C Kotecha, Prof. Manjula R “ IOT Based Energy show in the LCD. . It can be used to detect the presence, the level, the volume and The advantage is that you have more resolution than the utility meter reports. Now, the last emter tutorial, we calculate power and print it on An IR sensor module, which is used to detect fan’s blade to calculate the rpm, is connected to interrupt 0 means D2 pin of Arduino. When measuring an unknown resistor with a voltage divider with Arduino's A/D, then you should NOT measure/calculate with voltage. Starting with Teague’s DIY Arduino Watermeter, I’ve made some modifications to the code to compensate for the fact that I’m not using a Yellowjacket Arduino with WiFi, and the need to preserve precious… Measure the pulse frequency of the anemometer first with some kind of RPM/tachometer, to be sure it is working correctly. If you are interested in creating an Arduino wind speed meter or anemometer to monitor the wind strength in your location, you might be interested in this quick tutorial I have put together to [Scott] wrote in to us with his simple, but well done RF signal strength meter. Set it to your meters current water meter value * your PULSE_FACTOR. it’s a paradox as the serial values on arduino are I would measure the output from your ACS712 with a meter. In this Arduino Tutorial we are going to modify this analog Voltmeter and convert into an Analog Thermometer using Arduino and a DS18B20 temperature sensor. The values are displayed onthe 16*2 LCD. I want to create a power meter and use arduino to log the info and send to the web. It mostly used for audio effects and visualize the audio level. Posted in Arduino , Hacks , Ideas , Microcontroller , Projects . The Starter Kit is a great way to get started with Arduino, coding and electronics! The Starter Kit includes the components you need to make 15 fun projects following the step-by-step tutorials on the Project Book. The repeater was built to work on the 4m band, in order to promote activity and provide testing facility (by In the project Arduino Capacitance Meter uses 4-bit data mode. I'm very new to Arduino. After getting you set up on an Arduino board, veteran ham radio operators Jack Purdum (W8TEE) and Dennis Kidder (W6DQ) start with a simple LCD display and move up to projects that can I have been using AVR's for quite some time now, but this is my first Arduino project, and for testing purposes I'll be using an Arduino Nano, but I have decided to use an 3,3 V Arduino Mini when it's time to solder everything togeather since I have a 3,3 V battery in the meter, and I am planing on transmitting the read data with either an arduino, arduino uno, DIY Arduino Gauss Meter, Featured, Gauss Meter, uno No comments You may know that a neodymium magnet is more powerful than something you usually find on a refrigerator, but by how much? Hi hello Electronics Lovers, today I am going to show you that how to read your home or office electricity meter reading wirelessly using Arduino microcontroller and GSM module. A typical LC meter is nothing but a wide range LC oscillator. The following table shows the commands that are typically used for I2C communication. There are several dedicated IC’s out there like the famous LM3915, but I already had an Arduino (AtMega 328p) on board for some other tasks. This is the Adafruit METRO Arduino-Compatible - with headers. I’m taking this concept into another project for automatic curtain opener using stepper motor 30/12/2018 · Suggestions for the Arduino Project. Make VU Meter using Arduino. Thanks to Ron PA3FAT for all the help and coding changes etc that make  S Meter – uBitx ubitx. Paste the code below into the Arduino IDE and upload it. 1 May 2018 5. Just starting work on a system using Arduino to automate my burners and after some complications this last brew day with the mash recirculation getting stuck, I'm wondering if there would be a way to incorporate a flow meter to know when the flow has stopped and just monitor how fast it's really going. Beer keg flow meter (self. I will like to use this medium to say a big thanks for the open source arduino glucose meter project you published. In this article, we are going to discuss that how to design a 3 Phase Smart Energy Meter using Arduino. Anemometer (wind speed meter)Arduino DIY Light Meter With BH1750 Sensor. The Arduino's analogue input pins measure voltage (generally between 0 and 5 volts) so how do we convert current into volts? Thanks to Ohm's Law, there's a very simple linear relationship between the current flowing through a circuit and the voltage applied to the circuit. It's small, complete with RFM12B (or without if you prefer) and even has a two more Analog inputs than the Arduino Uno. In this article, I will show you how to make VU meter using Arduino and less number of components. The Arduino Duemilanove has a 1K ohm resistor built into pin 13. Our engineering team has rewritten the application notes to connect the Arduino Uno, Mega or Mega2560 microcontrollers with two of our most popular CO2 sensors. Follow these lessons for happiness and prosperity. So we can measure how much voltage is on the FSR using the analogRead and we will have our force reading. There are also lots of beginner’s kits that include an Arduino board and basic components, such as sensors, breadboard, relays, controllers, LEDs, jumper wires and motors. The Arduino based wireless power meter is a non-invasive current meter for household power with a Matlab interface. a) Download EmonLib from github and place it in your Arduino libraries folder. Earlier I have posted an Instructables on Arduino Energy Meter which was mainly designed to monitor the power from the solar panel (DC Power) in my village. Net. If you were to use a different pin, you would need to add a resistor. If you want a portable analog unit that will monitor one important piece of online info continuously and have some DIY electrical knowhow, watch this video. Visit the Arduino Distance Meter article in Blog Visit the Arduino Distance Meter thread in Forum Where to find some of the materials and tools. I have explained all the main components used to design arduino based power factor meter above. This is a functionality that I found missing in just about any digital multi meter. The circuit uses an Arduino UNO and Ethernet shield to connect it to a mobile device for its data-monitoring meter. The arduino's external 6-20V input has a ~1V drop out threshold headroom, ie it needs to be min 1V higher than the 5V internal reference it's generating (they say 7-12V so is may be 2V droput headroom needed). Circuit Description of Arduino VU Meter. Sketches. Arduino can be powered by an external 9V, 500mA adaptor or USB A-to-B cable. This device measures the internal resistance of a battery by measuring the voltage difference at the battery terminals when a load is applied and then removed. In this project we will use a normal Electret Condenser microphone with Arduino and try measuring the sound or pollution level in dB as close as possible to the actual value. This entry was posted in Arduino and tagged 16 bit timer, analog comparator, capacitance, capacitor, LCD, meter, RC on September 3, 2010 by Darius. Arduino IDE in my case downloaded without problems, the code without requiring disconnecting the communication with the peacefair meter, since the meter only transmits on request, also given to the optocouplers. Dec 11, 2016 A simple digital vfo with S meter for radio projects based on arduino and lcd. There are sketches using many Vernier sensors and the Digital Control Unit (DCU), various kinds of motors, LEDs, and buzzers, and other devices. For more info pleae look at this Forum Post The playground is a publicly-editable wiki about Arduino . It’s intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments. This entry was posted in Arduino and tagged A/D, ADXL335, Arduino on July 17, 2011 by Darius. This is a 5V Arduino running the 16MHz bootloader. This time, we start putting some of that theory into practice by building a stereo peak-program meter. My current incarnation has pins soldered to one end of a length of wire and the sensor the other (I used strands from CAT5e cable) to allow me to position the arduino then attach the sensor to the front of the electric meter, the attachment was a complicated process of sticking with some trusty old duct tape. When the Arduino controller gets power,you will see the blue LED on board is on. Enable (E) and SET/RESET (RS) pin is connected to D11 and D12 pin of arduino uno board respectively. The outage was widespread, straining the power company to get everyone back online. Post navigation ← Arduino LCD horizontal progress bar using custom characters Start with IAR Embedded Workbench for Atmel AVR: Attiny13 LED blink with timer interrupt → Demonstrates the Arduino capacitance meter and RC time constants project. Arduino Volt/Ampere Meter This post is a continuation of a previous one . The Gravity interface make the kit easy to connect to Arduino, Simple Arduino Home Energy Meter Posted on November 14, 2016 August 21, 2018 by Michael Klements I was walking through the hardware store the other day and I walked past an energy meter which clips onto your home’s electricity mains and then provides you with information on your power consumption and cost estimates for the month. I just want to show you how easy is to build an ampere and volt meter using arduino and four digit seven segment display. This is an Arduino-compatible TDS sensor/Meter Kit for measuring TDS value of the water, to reflect the cleanliness of the water. This circuit, then, essentially function as an ammeter, which is a device that measures current. Meter in uBITX Manager. 2) East to find sample code on Arduino official website to get started. This versatile solution replaces up to four multimeters with a ten gram device. Connect the positive terminal of the water flow meter to Arduino 5V. E. frequency meter library for experiment above). *FREE* shipping In this project we will use a normal Electret Condenser microphone with Arduino and try measuring the sound or pollution level in dB as close as possible to the Make your own DIY Arduino Distance Meter, easy and cheap, with innovations such as the center marker and relative coordinate search. Hi, Its a great experience to me as a new comer to Arduino projects. Arduino UNO board Arduino UNO is an open source electronics prototyping platform based on flexible, easy-to-use hardware and software. Following is the recommended equipment for solder-less prototyping, which is a good way to start. i have an arduino UNO with RS485 module. This data is then transmitted over a 802. It will show you how to use an Arduino Ethernet Shield to make an internet meter to monitor email, stocks, and other online info on a simple analog display. A multimeter can measure continuity, resistance, voltage and sometimes even current, capacitance, temperature, etc. The main objective will be to implement a function that measures the temperature of the hands of the person that makes the experiment. Constantly and completely monitor your Arduino project’s power consumption with the PowMeter shield. The pack contains all the components you need (minus any tools) for the lessons The PIC16F628A based heart rate meter is one of the most popular projects published on Embedded Lab. Arduino FT-857D CAT Library This Arduino library which I have created will allow you to control various functions of your radio via an Arduino micro-controller through the use of “Computer Aided Transceiver” (CAT) functions. meter’s LED with Arduino because LED possesses analogue signals while we are feeding Arduino on the digital side. Open hardware and software blood glucose meter using electrochemical test stripsDec 14, 2018- Arduino UNO project, Power Quality Meter, someone would call it’s PQ Monitor or PQ Analyzer. The commands need to be transmitted through the Wire. Andreas Spiess 23,929 views Flow Sensor Flow Meter Water Control 2MPa - Arduino Compatible SCM in ZIYUN,Gravity: Digital Water Flow Sensor for Arduino - 1/8",When The Liquid Flows Through The Sensor, The Magnetic Rotor Will Rotate and The Rotation Rate Will Vary with The Flow Rate A simple Si5351 vfo and bfo with S meter for hombrew transceiver- firmware based on arduino/atmega328p Si5351 vfo cum bfo with S meter for hombrew trx Here is a Simple vfo+bfo using Si5351 and a 16X2 lcd with an S-meter. The Arduino converts the raw data from its analog input into human readable values, then sends them to the serial port monitor. Set discharge pin to INPUT (so it can't discharge the capacitor) Record the start time with millis() Set charge pin to OUTPUT and make it HIGH Check the voltage repeatedly in a loop until it gets to 63. That’s a bit inconvenient for using the sensor outdoors so we will need a display, preferably one that can be seen easily in daylight. Here we have used a stepper motor driver namely L293N module . Theoretically it could This Arduino based current, voltage, and power sensor/meter tutorial was created for hacktronics by Steve Spence. When you finish building this project you will have a better understanding of how light meters work and you are going to see in action how powerful the Arduino platform can We will be using this for the Urine based aquaponics unit, we need to be able to control the strength of the growing fluid in the system but for the person on a budget a EC meter is just to much money. #Story# I need to build inductor 330uH for LM2575, but I can't find it in our store, and the LCR meter is expensive, so I built Arduino inductor meter. ESR Meter. All projects mentioned below use only the most basic Arduino components. This guide uses a Sensirion liquid flow sensor, parts of the Arduino Starter Kit and the Sensirion Arduino sample code to build a simple stand-alone liquid flow meter. DIY pH Meter. The audio input is given to analog pin. 3) Use for Arduino / Raspberry Pi & MCU Education User. I decided to make an LC Meter which uses the arduino shield form factor and is easy to make and use. Arduino-Based Gauss Meter. Adjust the Gain That’s what this project is about, a simple volume meter (or decibel meter) made with Arduino, a microphone and few LEDs. The 988 Hz tone is a square wave that must be passed through a three stage RC filter. Set the S-Meter to not use in uBITX, We will no longer measure the Me and a couple of friends would like to use the second Arduino Nano as S-meter sensor, butI was inspired by the s'meter of F6BQU for his small fForty Transceiver. For our Arduino UV Index Meter I have chosen to use an LCD ARDUINO RF power & SWR meter This sketch will readout RF power and SWR from any SWR bridge (for example 'monimatch' type). Hi, Its a great experience to me as a new comer to Arduino projects. I have made this connection: And i have an problem with communication of this module with power meter "InePro PRO-1Mod" (datasheet) over ModBus protocol. 5nF, the S-Meter may not be accurate. Here is an Overview of F/OSS Arduino Based Patient Monitoring in Terms of Ease of Build, Cost, Features & Comparison With Proprietary. This only appears when you initiate the TUNE function which is a 10 second 988 Hz pulsed tone that is fed into the balanced modulator. //this is the total_flow. Connect the DATA terminal of the water flow meter to Arduino digital pin 2 through a 10K ohm resistor. Pins D4 to D7 of LCD is connected to D7 to D4 pin of arduino uno respectively. Introduction: DIY Distance Meter With Arduino and a Nokia 5110 Display. Example: Your pulse factor is 1000 and water meter-reading is 33000. You simply utilize and modify as necessary according to the needs of your project. It’s important to say, hat the key to the rapid manufacture in Arduino project is the large library that spread on the internet (e. Another way to measure resistance with the Arduino's voltage-measuring analog inputs, is to build a constant-current circuit. In September 2013, Jim Giammanco, N5IB and Jerry Haigwood, W5JH announced via discussion group postings their collaborative project for a versatile measurement system integrating a DDS RF generator, an Arduino microcontroller board, and an RF log power meter based on the AD8307 chip. Sensor Commands. It has a variety of built in functions however there is no provision to measure power directly. Arduino 7 Segment LED Display Tutorial (TM1637 4 Digit) Hi /r/arduino, I recently moved into a new house that has a Zigbee compatible smart meter for both the electric and gas meters. No matter your vision, SparkFun's products and resources are designed to make the world of electronics more accessible. In this case, if you replace C1 a little bigger, it will probably work stably. It evaluates the light reflecting from the entire scene with the goal of avoiding overexposure. I placed the relay shield on top of the Arduino and switched to powering the assembly with the external power supply as the relay shield requires more power than the USB connector can supply. Let's deal with the problems of the various powering modes for the most famous Arduino boards, in order to overcome doubts users may have and to provide usefulA recent storm with horrific winds took down our electrical power. It’s a shield for the Arduino Uno that lets you measure inductance. In the third project we will make a "Love-o-meter" using a temperature sensor and three leds with 220Ω resistors each one. I built the meter later in the evening. Find these and other hardware projects on Arduino Project Hub. Post navigation ← Start with IAR Embedded Workbench for Atmel AVR: Attiny13 LED blink with timer interrupt Arduino and ultra sonic range measurement module or how to measure the pulse time with a hardware timer and an interrupt → Suggestions for the Arduino Project. Nano Digital Volt Meter is a microcontroller based simple DIY project for electronics hobbyists and makers. Feb 2, 2017 S-meter: a simple one transistor circuit can sample and rectify IF or audio signal August 2017: I made up a second Arduino Nano and si5351 Jul 29, 2018 You only need to check S. The downside is that the computed kilowatt hours may be different from what the Power company's meter says. In theory, you can use any resistance value, but I chose 5 kohm because the LDR’s resistance was in the order of a few kilo-ohms under typical room lighting conditions. So now let’s check the circuit diagram of Arduino based power factor meter. For further details, please refer to Arduino's official Wire Documentation. Then you can use a pulse generator (could be another Arduino) to supply the Arduino program with a fixed pulse frequency to check if it calculates the numbers correctly. Matching with Arduino controller, you can build a TDS detector easily to measure the TDS value of liquid. I had to put in an s-meter amplifier board to get the levels correct. Basically, in hardware section we all have to know how to interface arduino and LCD. Here’s how to wire the laser to the Arduino. This is a project based on Arduino board which can measureresistance, diode, continuity , voltage , current , power , hfe and capacitance . We are going to use an Arduino, the BH1750 sensor, and a Nokia 5110 display. The circuit of Arduino VU Meter is shown in figure 1 build around Arduino Uno (MCU) and LCD. The proposed energy meter system can incorporate with an embedded microcontroller and PZEM-004T AC Digital Multifunction Meter designed by Peacefair . It is a very easy to use microcontroller that you program in C/C++. 1) A complete set of Arduino's most common and useful electronic components. //We now print each value we parsed separately. Skilled in the GSM field, embraces the Open Source philosophy and its projects are available to the community. Arduino analog inputs can be used to measure DC voltage between 0 and 5V (on 5V Arduinos such as the Arduino Uno when using the standard 5V analog reference voltage). As he points out in his post, sometimes an Arduino is overkill, so a Picaxe 08M was used instead. The hardware involves only one resistor, for which I used 10K. CONCLUSION Wireless prepaid energy meter using RF and Arduino is easy to install and beneficial for both energy Provider and Customer. That timing measured from the square wave can then be used to calculate the inductor’s value. I have made this connection: And i have an problem with communication of this module with power meter "InePro PRO-1Mod Arduino UV Index Meter - Measuring UV Light. Arduino Project Handbook is a beginner-friendly collection of electronics projects using the low-cost Arduino board. arduino) A flow meter would likely not know the difference, though foam would be pushing less beer and more CO2 than a clear steam of beer. The GY-521 has an InvenSense MPU6050 chip which contains a 3-axis accelerometer and a 3-axis gyro meter. Since we know the speed of sound, we can use it to measure distance, since d = r*t (distance = rate * time). 1 Amp, but my multy-meter reads 0. Arduino With LCD-VU-Meter :: Student Project Having the ability to see sound levels is a useful tool for setting levels on audio equipment. The project is built around an Arduino Nano microcontroller board. Because the resistor is not the only thing limiting the current. arduino ph probe interface Project description If you've ever wanted to make a pH meter out of an Arduino or RaspberryPi or to find the pH of a solution, needed to interface a pH probe or wanted to make your own pH sensor. About Arduino SWR and Power Meter The resource is currently listed in dxzone. I was directly inspired by Kerry Wong's blog post - Kerry Wong's Blog about an LC Meter There was also an article in Everyday Practical Electronics issue in March 2010 using a PIC Microcontroller. arduino arduino_case Arduino_Pro_Mini audio case micro_usb oled stereo vumeter VU_Meter License ARDUINO VU METER OLED by bitxbit is licensed under the Creative Commons - Attribution license. I had already published one blog devoted RMS voltage measure The first trial was a gentle cycle through the limits (Arduino shits a brick when the input voltage crosses 5V at any point), garnering ~2000 samples. It does analog digital on/off input and output, reading of voltages, anolog output by Pulse Width Modulation (PWM) which is useful for hooking up motors, serial communication which is useful for communicating with sensors and other external devices. One of the best ways I thought would be to create handheld pH meter similar to what is commercially available using my LeoPhi boards. 11b connection through the home [s wireless router to the base station and Matlab interface. Required Materials Sensirion liquid flow meter. This is a fairly simple transistor circuit that will make a constant, pre-determined current flow through a resistor. However, I don’t know how to implement a timer in the arduino language. 1make sure you General pupose SWR and power meter. With its sexy acrylic chassis and retro look it’s a great addition to any bookshelf. Arduino's A/D works with ratios. – Roker Pivic Apr 19 '16 at 11:00 Presumably, these particles are being transported by some fluid, like air or water. I search on market , I can't find any similar PH meter module except this one. There are many available on the market, and in fact Asian suppliers are flooding the market. Multimeters and voltmeters are essential pieces of equipment when working on any kind of electronics circuit or Arduino project. In yesterday’s post about the progress on my big switch mode supply I mentioned that I was going to try building an Arduino based inductance meter based on the basic and straight forward design from Shadi Soundation. net/category/hardware/s-meterJul 31, 2018 If you have a Nextion display, and add a second arduino you can have a higher quality s-meter and multi-band signal monitor on your µBITx. cc will be read-only starting December 31st, 2018. 2% of it’s voltage when fully charged (the time constant). Simple Arduino code that implements a RF Signal Strength meter in increments of S 1, 3, 5, 7, 9 and +10, 20, 40 db. In order to overcome the difficulty of finding the resistance value, we are going to build a simple Ohm Meter using Arduino. Measuring distance is so important in today’s world that things like driverless cars will be impossible without it, that description is probably enough to describe how important knowing the distance between two objects can be. Dec 14, 2018- Arduino UNO project, Power Quality Meter, someone would call it’s PQ Monitor or PQ Analyzer. Meter is very simple, but obviously not very accurate or wide range. The Sensor Unit produces two voltages, one is the voltage across the input resistor and other is the voltage across the output resistor. You have the drive transistor in the arduino, your resistor and the current sense input on your multimeter in series. It was a fun project, and something I think most any computer/electronics geek would enjoy. It determines the level of audio. 01 Amps. The 2nd one was more carefully swept with 3 cycles, which yielded on the order of 6000 samples. TDS Range: 0 ~ 1000ppm / TDS Accuracy: ± 10% F. Current is measured using split core current transformers. Gravity: Analog TDS Sensor / Meter For Arduino SKU: SEN0244 TDS (Total Dissolved Solids) indicates that how many milligrams of soluble solids dissolved in oneAfter a bit of Googling around, I find myself more confused than informed. // initialize the library with the numbers of the interface pins DFROBOT Analog Ph Meter Pro/This Is An Analog Ph Meter Kit With Industrial Real-Time Online Electrode, Specially Designed For Arduino Controllers Alogrithm for capacitance meter sketch. TDS sensor kit which is compatible with Arduino, plug and play, easy to use. S. Arduino PH Meter Board (Board Only) Feature : This board can measure the PH reading ,and also build in two temperature sensor , one is for measure room temperature(LM35) , one is for measure water termperature(DS18B20). g. It’s a shield for the Arduino Water Detector / Sensor - Learn Arduino in simple and easy steps starting from Overview, Board Description, Installation, Program Structure, Data Types Here is a simple way to turn an Arduino into a whole house power usage logger. After find the hardware , then start build up this Arduino PH Meter project. There is a different way to use the sensor. Is there any easy solution to the power meter? I live in Argentina and the power line is 220V. This book is a great guide for getting started with Arduino. Arduino based Power meter. Instead of struggling every time you need to find the resistance of a resistor, just build an Ohm meter and measure all Arduino Sketch for a Retro Analogue Meter Graphic on a Modern TFT Display: Another sketch from my collection that may be of interestDisplaying small digital numbers of temperature and humidity etc on a tiny screen is not always the best way to show information. To use a high-current, coil-type buzzer, use a driver with external power supply instead of Arduino’s supply. Moteino Kill-A-Watt: Hardware Midway through my JeeNode Kill-A-Watt project, I came across the Moteino , and boy, I wish I'd found it sooner. INTRODUCTION. It appears that the sensor sends negative data and quits working. Arduino MAX471 Watt-meter Tutorial Connect Your Arduino to the MAX471, a Load and a Power Source I’m using an 18650 battery, while the nominal voltage is 3. The design is an air pollution meter that can be viewed in a smartphone. Arduino will continuously check. A typical Arduino has several of these converters on the board, and in this tutorial you will see how to read voltages from the Arduino’s analog inputs and build a voltmeter that measures direct current (DC) voltages. ask. Now S = V/2/C and since one click is about 1/1024 of V for the arduino, I get that one click is equal to about 0. An Arduino-based battery internal resistance meter. Originally developed in Italy and named after the bar that was frequented by its developers, the Arduino and Arduino clones are now manufactured by companies around the world and are available in several different configurations. Related articles on blog. The data pin of LCD is connected to digital pin of arduino as shown in circuit diagram. So if you are looking for a good weekend project and enjoy working with DIY test equipment, this project is for you. A simple Si5351 vfo and bfo with S meter for hombrew transceiver- firmware based on arduino/atmega328p Si5351 vfo cum bfo with S meter for hombrew trx Here is a Simple vfo+bfo using Si5351 and a 16X2 lcd with an S-meter. 96″ OLED module, all housed inside a 3D-printed enclosure that he spray painted matte black. What is the most effective way of getting accurate voltage measurements with an Arduino?A related topic not covered under this section is the shield, boards that plug directly into an Arduino's pin layout. 5V operation; This Gravity Analog TDS Sensor / Meter for Arduino is used for measuring TDS value of the water, to reflect the cleanliness of the water. Project description. I had already published one blog devoted RMS voltage measurements on full band 20 – 20 000 Hz audio signals. Today I will be showing us how to use the popular HC-SRO4 Ultrasonic sensor with the Arduino to measure distance. Without any further delay, let's get started! Today we are going to learn how to use this analog voltmeter with Arduino and make it show th Incuctance meter in action. Arduino is an open-source microcontroller project that is literally change the world. It’s housed in a plastic enclosure and looks quite professional IMHO. com in a single category. Update Variable1 value under the vera device advanced tab. Hardware hackers are. There is a lot to cover so let’s get […] There was also the issue of how to power the Arduino and magnetometer I had placed at the water meter, which is well separated from my house. As this 'monimatch' type of bridge is frequency dependant, the meter must be calibrated for every band. Arduino's internal pull-up resistors are used, therefore do NOT install an external Check W5KUB's page on fb, files section think the S-meter is there. The pin number(D8) of Arduino is attached to the switching side of an Optocoupler for detecting pulses coming from energy meter. I have much more experience with Java and ActionScript 3. One thing that is generally missing is a display that tells you how many “G's” (o The connection between the EEM12L-32A and the arduino board is straightforward. The solution was a 15-meter length of four-conductor This time we are building VU Meter using Arduino and taking the audio input from 3. Advantages of PowMeter Nano: A very small footprint. I had already published one blog devoted RMS voltage measure Arduino is an open-source hardware design, so everyone with enough knowledge can make their own boards. In this tutorial we are designing flow meter using arduino, basically we use arduino boot loader controller on our custom made PCB. Here’s a really useful and easy project you can do with an Arduino. About RF PWR and SWR Meter with Arduino The resource is currently listed in dxzone. Thanks to Eric Rosenthal, Teague Labs, and Koolance, I have a handy fluid flow meter, that is cheap, flexible, and hopefully reliable. Then the point between the fixed pulldown resistor and the variable photocell resistor is connected to the analog input of a microcontroller such as an Arduino (shown) For this example I'm showing it with a 5V supply but note that you can use this with a 3. The Arduino based audio meter, as shown in Fig. Powered via the USB cable you can use a simple USB wall wart to power this clock and put it anywhere you need some retro style! An ESR (equivalent series resistance) meter is useful for measuring the ESR of capacitors in-circuit, and also resistor values that are below one ohm. com/youtube?q=arduino+s+meter&v=kGgWxiksJ80 Dec 19, 2016 Demo of the Bitx40 showing the arduino dds vfo and s-meter added. Arduino is used in a number of projects to accomplish complex tasks in easy and economical way. This Arduino pH Sensor / Meter Kit is able to measure the power of hydrogen. Sorry for this but very rarely do I get a chance to use my college calculus!!!!! Below is a view of the arduino part, integrated inside a small box that is then mounted near the water meter (the USB connector/cable goes to the TCRT5000 module, I just used the 4 available wires in the cable, and happened to have a spare female USB connector lying around. Preface. i have an arduino UNO with RS485 module. Before getting started you must know what is VU meter. In this article, I am going to show how to replicate the same project using a simpler platform like Arduino. Your matrix or evaluative meter is also an excellent tool for exposing transparency film. In the lower third we have the S Meter and to, the right of “S9”, is the word TUNE. A flow meter is a device used to measure the flow rate or quantity of a gas or liquid moving through a pipe. 0: Hello friend, welcome back after a long break. Arduino UV Index Meter. That resulting signal is a square wave, which is an easy target for the Arduino to measure. Onward to the Poor Ham’s Scalar Network Analyzer (PHSNA). Playground. This project hereby presented is a complete HAM radio simplex 'smart' repeater, built around a Motorola GM-350/950, Arduino NANO board and a WINBOND audio recording integrated circuit. Each capacitance meter has an rc circuit with known resistor values and an unknown capacitor value the arduino will measure the voltage at the capacitor and record the time it takes to reach 63 2% of it's voltage when fully charged the time constant. You only need an Arduino, an LCD shield, an LDR, and a 5 kohm resistor. *FREE* shipping In this project we will use a normal Electret Condenser microphone with Arduino and try measuring the sound or pollution level in dB as close as possible to the Arduino for Ham Radio: A Radio Amateur's Guide to Open Source Electronics and Microcontroller Projects [ARRL Inc. This first section shows how to wire the photoresistor(LDR) to the Arduino. With this knowledge, I may be able to time how long it took for the capacitor to reach 63. way. 3v Arduino output, according to a plan that shall produce 0. 1, is built around Arduino UNO board, 16×2 LCD and 10-kilo-ohm potentiometer (or potmeter). “S meter” active bridge v3 Due the nature of some of the Arduino programs, Radio Hams and shortwave listeners will In Lesson 17 we learned to use an ultrasonic sensor to measure the speed of sound. 5 mm jack, so that you easily provide audio input from your Mobile or Laptop using AUX cable or 3. At 5V (its max) it will read 1023, and at 0v it will read 0. 5 Watt we should connect it to an interrupt line of the Arduino to collect them. I'd like to be Only $2 PCB Fabrication & First Order Free Shipping: Months back we have build a current meter. Feel free to disregard the "for ham radio" part of the title. As the EEM12L-32A provides a pulse every 0. Previously, we introduced the Arduino’s analog-to-digital converter (ADC) in detail, looking at successive-approximation A-D conversion and how it’s the best compromise between speed and cost. energy meter’s power consumptions (bill) on a real-time basis. If you have a hard time reading the color bands on resistors like I do, this project is perfect for you. A VU meter is also called as “Volume Unit”. I wanted to implement a VU meter in an amp project I’m working on. Since then, SparkFun has been committed to sustainably helping our world achieve electronics literacy from our headquarters in Boulder, Colorado. Components list: 1) SMD 3 Colour RGB Module 2) 3 Colour RGB Module 3) Temperature Sensor Module 4) Button Module More Arduino Microcontroller Projects for Your Ham Radio Station! Building on the success of Arduino for Ham Radio, this book — More Arduino Projects for Ham Radio — includes 15 completely new practical and functional Arduino projects for the ham shack. The value of the unknown resistance is displayed on 16*2 LCD display. I need your special help in understanding the circuit schematic, such as explaining the operations and uses of the OpAmp involved in the schematic. Then set Variable1 to 33000000 . This project is an Arduino controlled analog meter clock. *FREE* shipping In this project we will use a normal Electret Condenser microphone with Arduino and try measuring the sound or pollution level in dB as close as possible to the One note to using this project with AutoCap: the AutoCap firmware for Arduino and the SWR meter for Arduino are two separate sketches. The Arduino program for this project is very optimized and shortened so you can see what a properly written program looks like. write(Value) function that is part of Arduino's Wire library for I2C communication. Let us know if you have a good source. The basic principle behind this project is a Voltage Divider Network . //this is the the flow rate per X time. Used: Eastron SDM230 Modbus Smart Energy Meter with Modbus Protocol: Arduino Water Flow Meter with I2C LCD May 3, 2012 Our friend Carlos has used the G1/2 Water Flow Meter and an I2C/TWI LCD to control the water flow in a standard liquid cooling for his PC. Building a Light Meter is a great learning experience. We have also added a few extra pins to make things a little easier. This reduces revenue cost and reduces the human errors and problems like over running of the meter, over load. We also receive a dose of UV light from sunshine Hi, Its a great experience to me as a new comer to Arduino projects. Arduino Ammeter Circuit. Arduino is an awesome way to get into robotics. If you use a constant current source to measure that unknown resistor, It's good for the designer and the community (that means you)! To post a Make, come back to this Thing and click Post a Make . The main category is Ham Radio - Arduino Projects that is about Arduino Projects for Ham Radio Applications. Design an algorithm in MATLAB to read your Arduino’s inputs and control its outputs based on the logic you specify. When measuring an inductor or capacitor, the added inductance or capacitance changes the oscillator’s output frequency. For the code, schematic and project discourse, visit the Arduino forum. 11 Dec 2016 A simple digital vfo with S meter for radio projects based on arduino and lcd. Arduino PH Meter Project I search for build a PH meter for my fish tank. Connecting a water sensor to an Arduino is a great way to detect a leak, spill, flood, rain, etc. 2 Feb 2017 S-meter: a simple one transistor circuit can sample and rectify IF or audio signal August 2017: I made up a second Arduino Nano and si5351 I was inspired by the s'meter of F6BQU for his small fForty Transceiver. Scenario: i connected 33ohm resistor to 3. 6 volts it can be as high as 4. 8. I just downloaded it and compiled it on Arduino 1. If current is displayed with negative (-) sign, it either means that it is flowing in opposite direction or input pins of current sensor IC are interchanged. The collected data can be graphed using either Excel or another similar program to give Arduino water flow meter with I2C LCD is used to control the water flow in a standard liquid cooling for a PC. Arduino watertank lever meter About Boris Landoni Boris Landoni is the technical manager of Open-Electronics. Arduino is user friendly controller which is used extensively in control and automation now days. In this project, we will show how to connect an analog current panel meter to an arduino, so that we can measure and display the amount of current flowing into the arduino board