51 development board

• Based on the STC12C5A60S2 chip, the board integrates the CH330 serial port, crystal oscillator and power-on reset circuit. The size is 30mm wide and 52.3mm long. It can be plugged into the DIP40 chip socket and breadboard.
• There are two errors in DRC, which are caused by the USB through hole distance from the pad being too small and library problems. There is no solution for the time being, but it does not affect the use. 3D diagram

Picture of the blank board after proofing: Picture after welding: Please see the attachment for related instructions, videos and procedures.

I have made a version with a main power switch. If necessary, you can check the link below.

https://maker.lceda.cn/p/yacter/stc12c5a60s2-hu-xin-ban

The above circuits have been tested by me and can be used normally. You should have sufficient understanding of the above circuits and understand the risks involved. I do not make any functional or quality guarantees for the open source copies; I do not guarantee that you can use this product correctly and use this product. There are no issues with the product. If you have any problems while using this open source project, it has nothing to do with the project author.