IoT electric heater DIY

Thread Starter


Joined Apr 12, 2020
I am planning to build an Electric heater with IoT capabilities. The module which I would be using is esp chip for wifi so that it could display the temp at the app, and also set the required temp at the same time. I need some suggestions before designing the schematic.
Since most blanket heaters are input directly from a power source, in this scenario, I would be needing an Ac to Dc converter 3.3v to power the esp.
The design would be as follows
3.3v provided to esp
5v to power the led display at the controller
12v to power the blankets

could you guys suggest me which Ic to use with esp as I would be needing to set the temperature as low medium-high or 1-9 and also read the status of the current temp which sends back the output to esp, any schematic would be helpful.