Youlian master control, 40% small layout keyboard without programming

 
Usually, the small layout keyboard controlled by the K230 needs to be programmable. Otherwise, the relatively small number of keys cannot meet the usage requirements. There are two methods:
1. Use the hardware U2U key code converter to insert into the computer USB port, and insert the K230 receiver into the converter. , this method can no longer connect the receiver to other Youlian keyboard and mouse devices, and is less portable and more difficult to make.
2. The Autohotkey software is used for transcoding. It is easy to use and settings can be changed at any time. However, it also has disadvantages. When the computer is started but not entered into the system, Autohotkey does not work, making it impossible to perform operations such as BIOS settings.
 
This project adopts a pure hardware design without programming, 40% of the ordinary keyboard configuration, and is equipped with a lithium battery charging function.
Multi-channel analog switch RS2227XN is used to realize the Fn function. Press Fn to input numbers, punctuation marks, and F area function keys.
 
 
 
Please refer to the specific production process: https://oshwhub.com/iqirtryi/K230-PKB40
Main component purchase link: https://docs.qq.com/doc/DYWFPbGdhZ0puV2V6