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.

Solar powered wifi weather station in Kistarcsa, Hungary

Solar powered wifi weather station in Dunaharaszti, Hungary

Soil Moisture MeteoFabro 01

Solar powered wifi weather station in Taksony, Hungary

Battery Monitor Reading from my BMV 700

Keeping track of my solar charge controller

Beehive scale from minebier.dk

Shunt sensor parameters on WatchMon BMS. Demonstrating of some of telemetry available for a lithium battery pack in a home solar battery system.

Cellmon sensor parameters from Batrium Watchmon BMS. Demonstrating of some of telemetry available for a the lithium battery pack in a home solar battery system.

Inverter/Charger parameters from Batrium Watchmon BMS. Demonstrating of some of telemetry available for a lithium battery pack in a home solar battery system.

Battery data send by Android Tasker application.

Solar WiFi Repeater