https://randomnerdtutorials.com/getting-started-with-esp32/ -- main board (ESP32 Board)
toadd - temperature and humidity sensors (DHT Unified Sensor)
toadd - air quality detector for ppm measurements (MQ135 Sensor)
https://www.mechatronicstore.cl/wp-content/uploads/datasheet-sensor-dsm501a.pdf -- dust sensor (DSM501A Sensor)