Small numeric keyboard based on HT82K629A. I accidentally saw the official keyboard video on station b ( https://www.bilibili.com/video/BV1XZ4y1x7ix ). On a whim, I also made a small keyboard for fun and changed the crystal oscillator and xh2. The 54 interface can choose the interface location independently. Later, we will consider adding a Bluetooth module to make it wireless and convenient to use.
HT82K629A mall purchase link: https://so.szlcsc.com/global.html?k=HT82K629A is free of driver and no need to write code, it is simply wonderful
Reference project https://oshwhub.com/OSHWHubkai-yuan-ying-jian/li-chuangeda-ke-zhi-hua87-jian-ji-xie-jian-pan
has changed the crystal oscillator and xh2.54 interface, and you can choose the interface location independently.
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