https://electronic-lab.net/en/tags/voltmeter/Recent content in voltmeter on Electronic LabHugoen-USTue, 09 Jan 2018 23:58:00 +0100https://electronic-lab.net/en/projects/arduino-two-channel-voltmeter/Tue, 09 Jan 2018 23:58:00 +0100https://electronic-lab.net/en/projects/arduino-two-channel-voltmeter/<p>A two-channel voltmeter with a thermometer, built as a shield for the Arduino Uno. It measures two DC voltages up to 40 V and the temperature, and shows everything on a small OLED display.</p> <p><img src="https://electronic-lab.net/hr/projects/arduino-two-channel-voltmeter/photo.jpg" alt="Two-channel voltmeter with thermometer on an Arduino Uno, connected to two 9 V batteries" title="The prototype measuring two 9 V batteries"></p>