In order to initiate, we must start with the demo of a popular microcontroller.

Hardware pictures:

I forgot to modify the silk screen of the actual picture. The actual picture is based on the pcb file below.

As multiple microcontrollers share the same appearance, performance comparison is very important.

Here I use my previous open source code, Game of Life, as the demo of this development board.

It may not be too rigorous as a performance evaluation, and the floating point instructions may not be fully used, but as a general comparison, it is not much different.

Like vs. bet: In addition, I wrote a chess game. This project received 50 likes. After my project received a total of 200 likes, I open sourced the program.

Compilation size after optimization is turned on to the maximum

Power consumption comparison

Take the current when the OLED displays the same picture without operating as a reference, that is, the current of the peripheral circuit is also included in it.

Chess demo program wiring table:

They are all wired from opposite breadboards, so there is no big problem when plugged into a breadboard.