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.
Measuring temperature and humidity inside my hive in Anchorage, Alaska. Reading taken every 5-6 minutes. Gauges may take 15 seconds to display proper values
Test development system. Data Only for Investigations and Experimenting. Engineering Mode. Board being used https://ditronix.net/shop/rmis-12s-stem-sdk-v1-remote-monitoring-iot-system/
Air temperature and humidity, including air pressure and inside air quality sensors running on an ESP32 and a solar powered ESP8266.
Innentemperatur + Luftfeuchte und Akku-Spannung Schlafzimmer