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An open source multimeter, with dual ranges for V/I, RMS measurement, continuity, component test and more!
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MartinD-CZ V1.2b
initial release
Latest commit 89c56bb May 27, 2019
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README.md

STM32 OpenSource MultiMeter

see the article here or the video here A picture of the finished device

Specs

  1. voltage measurement: ±6 or ±60 V ranges, with DC or RMS data acquisition
  2. current measurement: ±60 or ±500 mA ranges, again with DC or RMS
  3. can measure voltage and current simultaneously and display the product, ie power
  4. measures continuity and displays the resistance and voltage drop
  5. can perform simple component testing

Additional features: hold function (freezes the display); isolated USB connection; buzzer; exposed I2C port; status LED.

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