Matteo Monsello and Daniel Garčević built a solar-powered weather station with a particulate sensor to monitor air quality in Alba. It’s a modular design using ATmega328P microcontroller and uses the ESP8266 Serial-to-Wifi chip to upload the weather data to the ThingSpeak server. The weather station receives power from a 20W solar panel that charges a 12V lead acid battery using a custom built solar charge controller. The total cost to build it was around 300€.
The sensors they used are
- Sparkfun weather meters (wind wane, anemometer and rain gauge) (https://www.sparkfun.com/products/8942)
- Adafruit AM2315 (temperature and humidity sensor) (https://www.adafruit.com/product/1293)
- Adafruit BMP280 (pressure) (https://www.adafruit.com/products/2651)
- DFROBOT PM 2.5 laser dust sensor (air quality) (http://www.dfrobot.com/index.php?route=product/product&product_id=1272)