Arduino: Complete system with Photodiode or LDR(Light Dependent Resistor)
Budget: $250 – $750 USD
I want to track the firelights in a building. If the light goes of, I want to receive a simple message/email, telling me wich light is not working. The building has wifi and I need to place the device on each light. The price has to include the hardware for 1 pcs, plug and play.