CH551 microcontroller HID three-button keyboard

Use 2.5*4+3 (or 2.5*5+3) copper posts and 2.5M male nuts to fix them.

Update log:

v1.0:

Modified from open source project

https://www.oshwhub.com/TheLight/zi-ding-yi-jian-pan

The multimedia knob of ec11 has been removed. Add a new LED power light, and modify the key shaft packaging to a universal mechanical key shaft package. Add a new keyboard cover, just separate the two pieces after finishing the board.

v1.1:

Modify the key shaft package of the type-c version to be hot-swappable.

The next version is going to be a hot-swappable version.

The hot-swappable version has been uploaded.

The hot-swappable version has been uploaded.

The hot-swappable version has been uploaded. There may be some problems with the fonts imported into the pcb. You can adjust them yourself and delete the ones you don’t need.

I uploaded two hex files. I don’t know if there is any problem. I have made several before and lost them. I saw this in the inventory and I don’t have time to test it.

It's not that the hole of the hot-swappable version is a bit small, and Kaihua's shaft cannot be inserted in. You can use a small electric drill to expand it, or modify the PCB yourself.

Please understand that the project files are produced using AD18.

Please refer to the original author for specific projects. The address is as follows:

https://www.oshwhub.com/TheLight/zi-ding-yi-jian-pan

Component list: All are 0805 packages

Note: Use 1k resistor for red, yellow, orange, yellow-green LED lights, and 2.2k resistor for warm white, white, blue, emerald green, ice blue, and pink LED lights.

The project is made using AD18. When making the board, select pcb compression to upload the board.

Any omissions will be added later.