I want to use DFRobot SKU SEN0161v2 and DS18B20 sensors,
and at the 4 Channel Relay, I've
2x Micro Submersible Pump 5v 200mA and
1x Mini Submersible Pump 6V 500mA, but
I power the Peltier and Heatsink with the other 12V power supply on relay 4 common
