multispectral monitoring of a sourdough starter; esp32 eink module, scd30 co2 sensor, vl6180 distance sensor

EINK STARTER MONITOR

See full blogpost here

Tracks height of starter with a VL6180 i2c distance sensor, and CO2/temperature/humidity with an SCD30. A small MOSFET circuit drives a little fan to more consistently sample the CO2.

Built around the LILYGO EINK module

BOM

  • LILYGO EINK module
  • Adafruit Qwiic SCD30
  • Adafruit VL6180
  • 2N7000 N-Channel MOSFET
  • 420mAh LiPo
  • wee tiny Fan (this or any equivalent, smaller the better)
  • M2 screws, 12 to 20mm long, and nuts
  • Peanut butter container and 2 lids
Owner
AKA
Hardware | Software | Empathy
AKA
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