Accu 2S 18650, ESP-12 NodeMcu, ESP-Easy, BME/BMP280, Potentiometer 10k conn. Vin-A0-Gnd
Ben's wormies use ESP-Easy and runs on a Wemos D1 mini. Readings for Air and Soil are sent to this channel. React & ThingHTTP trigger IFTTT to issue alarm on his phone.