Microcontroller test board circuit 1

The drawing above is a relatively general experiment board circuit, suitable for experimental programs in ordinary, stone, Jinjubao and many other places. Of course, it is also suitable for the assembly program I provided. In short, it has strong compatibility, versatility and ease of use. It can realize the subroutine practice of running lights, digital tubes, keyboard control, sounding music, oscillators, etc. That’s enough to get you started! That's enough! If you have strong hands-on ability, you can make your own based on it. Related downloads: bin.rar licheng.zip