ESP8266-01 + BME280 + 5V 60mA Solar Panel + 2x AA NiMH rechargeable batteries https://github.com/preechaim/esp8266-bme280-ts

Currently, this Nodemcu is used to measure the capacity from recycled 18650 notebook batteries. Values maybe empty before new battery start.

Air temperature and humidity, including air pressure and inside air quality sensors running on an ESP32 and a solar powered ESP8266.

Soil Moisture MeteoFabro 01

Battery Monitor Reading from my BMV 700

Keeping track of my solar charge controller

Beehive scale from minebier.dk

Battery data send by Android Tasker application.

Solar WiFi Repeater

Monitoring of a solar installation with two 24V 330W panel in serie, Tracer4210AN MPPT controller, two 12V 138Ah battery in serie and 24V 5000W inverter. Using Raspberry to decode controller data and communicate with ThingsSpeak web API

Monitoring of a solar installation with two 24V 330W panel in serie, Tracer4210AN MPPT controller, two 12V 138Ah battery in serie and 24V 5000W inverter. Using Raspberry to decode controller data and communicate with ThingsSpeak web API

Collected data from Batrium BMS connected to the Lions2Life's pilot-battery

Maximum temperature of each battery module, from the first plate (M1 to M7)

Collected data from Batrium BMS connected to the Lions2Life's pilot-battery: 8 to 14 Module CellMon voltages read by Batrium