KFC typewriter [main control board] APM32 main control keyboard

The smallest system board controlled by APM32F103CBT6, compatible with STM32 chips
 
1. Features
1. The pin spacing is 800MIL, and the wiring sequence is similar to other products on the market (the differences are marked in red)
2. The size of the main control board is 1000mil*2250mil (the length is just right It is a 3U key)
3. With four M2 screw holes (the location is compact. If you want to use screw posts + pin headers, you may need to use a knife to sharpen the plastic base of the pin headers)
4. The RESET/BOOT button is compatible with three common light Touch the switch and reserve the pin pad hole
5. Reserve the FPC cable with the USB port on the back (4PIN-1MM in the first draft, 6PIN-0.5MM in the final draft)
6. The four lines of the OLED small screen and the four lines of the programming are both Use a separate jack to lead out. If you install a 9.1-inch small screen, it will be just in the middle.
7. Capacitors and resistors are basically packaged in 0805. Use the Lichuang basic library to facilitate spending money on SMT patches or soldering
components by yourself. You can search directly by the material number of the BOM order on Uxin Taobao When buying
the main control chip in the store, we recommend the domestic APM32F103CBT6. The 2*3mm membrane switch needs to be searched separately.
 
2. Purpose and function
[There is another project on the homepage, the main body of the KFC typewriter project]
The main function is to be used with another open source project on the homepage "KFC Typewriter Project" ,
as the supporting main control board of the KFC series keyboard
, it can also be used as a simple STM/APM32 development board or core board,
and can be used as a reference for learning the STM/APM32 system schematic diagram.
 
3. Warning:
The project is open source for a long time and will not be updated regularly. Please do not use it for commercial purposes.
This project is currently in the verification stage. Verified boards will be marked with a mark number.
Please check unverified boards yourself and use them with caution.
Just kill it and bury it in the download. If there are any mistakes, you can remind me to correct them in the comment area.
 
 
This project is open source based on the CC-BY-NC-SA 3.0 agreement.
When reprinting, you need to give appropriate signature (must include a link to this project), and indicate whether the original has been modified. This work may not be used for any commercial purpose.
If you modify, transform, or alter this work, you may distribute derivative works generated from it only under the terms of the same license as the work.