Heating Pad With Precise Temperature Control 50-800W With Arduino (0-125C Degress)

This thermal pad could be used for any type of application. I made it at home during winter time to preheat my tea or coffe, because after some work it always getting cold.

1unit Arduino UNO

1unit Mutifunctional POWER SHIELD 6+6 T800

1unit Arduino UNO prototiping PCB

1unit Dalas one wire digital termometer DS18B20

1unit Some wires, resistor 4.7K

1unit Aluminium sheet 100x100x10mm

1unit Some bolts

1unit Ground pad

1unit Box 100x70x50mm

1unit AC/DC 12V 5-25A

1unit Therpam pad with or without NTC. 12V 50-800W

2 units cable glands

1g cooling paste

4 spacers

Some nylon tape

Some zip ties

First off all making aluminium (coper) pad 100x100x10mm - from any sheet of metal material.

When drilling a hole for temperature sensor DS18B20 and putting inside cooling paste also screwing with a bolt too.

Doing wiring as in shematic.

Assembling in one box.

Final view of assemblies.

Uploading simple sketch.

Testing and enjoing the warm tea or coffe.