IoTea LoRa SmartAgriculture
PM2.5 PollutionVisualization WioLTE
Download datasheet here
are these common anode or common cathode?
A search at the web for similar products offered me the connection. BUT this item needs a looot of pins in arduino so it's useless if you want to have some sensors connected to your arduino. In the market there is a similar product with a serial interf