[email protected], no need of RPI and Arduino.

[t1m1]

Well, I have a little situation here, pls, help me if you can, before I burn something.

I have iduncant's board and am a little bit confused about how to properly connect 2 channel relay.

@iduncant, thank you very much, again!

 

[LBussy]

With the jumper off, you run 5v to JCC and ground the GND. Run 3V to VCC on the 4-pin side, GND is GND and IN1 and IN2 are for the heat and cool.

 

[Lalo_uy]

Yes day_trippr , all work ok with 820 ohms pull up to 3,3V, and 100nF between 5V and gnd in the branches to avoid the 85C errors.