Using ESP8266 with Sensirion SCD30 and BME280 to monitor CO2 level, air humidity and temperature.
Weather station located in Uchaly (Russia). Hardware used: NodeMCU3 (ESP8266) + SHT31 + BME280 sensor.
ESP-32/BME280 combo, solar power with LiPo battery. Location: Immelstetten, Bavaria, Germany.
Meteo data from Vihorlat Mountains, Slovakia. Measured by BME280 sensor. Data is transmitted by IOT LPWAN SigFox Node UART Modem 868MHz.
ESP8266-NodeMCU-12E-BME280 Located at Ernakulam , Kerala , India.
BME280 for temperature, humidity, pressure. Sensor is placed outside an East Campus window on the side facing building 66.
BME280 for temperature, humidity, pressure, PM1.0, PM2.5, PM4.0, PM10.0, and CO2 (ppm)