Tag Archives: digital meter


Turn your Arduino board into a digital multimeter with this shield

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Here is an instructable that describes a DIY shield which would convert your Arduino board into a multifunctional digital multimeter. This shield can be used with “Arduino” UNO und Duemilanove boards, and can display the measurements on a 16X2 character LCD and/or on the serial monitor window on PC. This digital multimeter Arduino shield has the following features:

  • voltmeter ranges : 0-10V; 0-30V; 0-100V
  • ampmeter range : 0-500mA 
  • ohmmeter ranges : 0-1KOhm, 0-250KOhm
  • diode, LED, continuity tester
  • LED functionality tester
  • transistor Beta meter
Digital multimeter shield for Arduino Uno

Digital multimeter shield for Arduino Uno

Arduino: Digital energy monitor for your house

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This project describes a whole house energy monitor that provides quick access to current energy use information, usb datalogging for detailed long term data storage and Internet connectivity for online graphing.

The display unit uses four seven-segment LED displays that shows real power, apparent power, power factor, RMS voltage, RMS current, frequency and cumulative KWH consumed.

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A multifunction digital meter using Atmega128

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This is a multifunction bench test instrument built using an Atmega128 microcontroller and incorporate a lot of functions like voltmeter, ammeter, logic analyzer, frequency generator, frequency counter and also provides regulated DC power supply.

This device is interfaced with a Windows PC to display the measurements. The PC software is developed in VB 6. The function generator is based on a MAX038 IC that can provide sine, triangle or square wave, with adjustable duty cycle, from about 1 Hz to > 20 MHz.
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