We are working on a project that requires a temperature sensor to tell the Arduino Due to turn a digital pin to HIGH (3.3V) to active a relay so a heating pad can be powered on.
We have diagnosed all possibilities and the only explanation as to why the switch will not active is the digital pins are only reading 1.8 V on the relay.
We are using a JQC-3F(T73) relay. We are using two digital pins to give it plenty of voltage and amps to switch on and off when needed.
so any explanation as to why it isnt working? thanks.