Mechanical considerations before designing the PCB

A project log for Cactus: Measure humidity in kitchen cupboards

ESP8266, WeMos, Si7021, battery shield, IFTTT.

sayaneesayanee 08/27/2017 at 22:560 Comments
  1. Place the PCB on top of the 2 AA battery holders
  2. Connect the battery wires on one of the shorter edge of the PCB
  3. Solder the ESP-12F on the other shorter edge of the PCB
  4. Bar LEDs are lining up on the longer edge of the PCB
  5. Place the ESP-12F module within the dimensions of the battery holder so that the final form can stand vertically as well