Can you explain where the mistake was please, I just want to supply the Peltier and fan with 12V requirements, and relay 1, 2, and 3 is absent because I think the relay get supply voltage from the microcontroller. Guide me, please...
Can you explain where the mistake was please, I just want to supply the Peltier and fan with 12V requirements, and relay 1, 2, and 3 is absent because I think the relay get supply voltage from the microcontroller. Guide me, please...