ESP8266 for connect to internet. BME280: 1. Temperature 2. Humidity 3. Pressure 4. Aprox. Altitude 5. mmHg BH1750: 1. Light (LUX)
Temperature, Humidity and Air Pressure using NodeMCU v2 and Bosch BME280 Barometric Sensor
Power Node sensor with bme280, measures temperature, humidity, pressure and battery voltage. Sends measurements to gsm master node every 10 min. Current consumption ~ 10uA at 2.6V.