Voltage Data Logger

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DIY voltage data loggers I've created

  • monitoring my small solar panel system
  • monitoring engine start battery voltage on my Prius

Voltage data logger in waterproof project box.

Generic Voltage Data Logger.jpg


  • Wemos D1 mini (clone)
  • Buck converter out; 5vdc
  • ADS115 I2C analog to digital converter (ADC)

data charting