To control my 20l oven I decided to create my own primitive pcb on this prototype copper.
On board:
- ADC
- 4x relays
- esp01
- some primitive console
my layout looks more or less like this:
The drawing may be chaotic, because it's prototype. Some elements may be missing, because I will solder them this way. Console will be soldered on separate board. For power supply I bought dime a dozen several of those 1A chargers.
Source of picture:
https://shopee.ph/Prototype-Paper-Copper-PCB-Experiment-Matrix-Circuit-Board-i.92393770.1603331285