STM32F103 - 4 channel voltmeter with recording & plotting of readings/samples

A simple digital voltmeter made by AVR microcontroller and 7-segments

Analog instument

A simple Arduino-based digital voltmeter using a 16x2 I2C LCD display.

Web component made with Google's Lit Element Frontend Framework

A clock made with an analog voltmeter controlled by an Arduino nano.

Auxiliary voltmeter for PC with ADS1115

voltmeter based on the MAX1499 chip

Make a potential divider across the analog pin and the voltage you are checking. Resistance values are mentioned in the code as well.

This project implements a voltmeter which measures DC voltage upto 50 volts. A 16*2 LCD display paired with arduino shows the reading of the voltmeter. The connection consists of a voltage divider circuit to measure such large voltages.

An Arduino based voltmeter that can handle voltages up to 500 V and displays it to a LCD screen

Voltmeter using Arduino Nano

pequeño código en arduino para crear un voltimetro que utiliza Aref para eliminar errores de lectura procedente de la fuente de alimentación para adaptarse y tomar una medida mas real

measuring voltage using attiny13 and attiny85

An Arduino-based clock which displays the date and time with voltmeters

Arduino based Automatic Measurement System that can measure voltage and current in the ranges: {-500mV... +500mV}, {-5V... +5V} (changeable)

Мониторинг наличия напряжения в электросети (опционально контроль температуры и влажности помещения)