20230105 DIY-旧物改造-将XT, AT and122

from  https://geekhack.org/index.php?topic=17458.0

硬件 

一个 Teensy 2.0小板+ 一条USB线

一个古老的XT或AT键盘

XT键盘和Teensy接线方式

Conn.       Teensy

GND -------- GND

Vcc/+5V ---- Vcc

Data ------- PD0

Clock ------ PD1

软件

https://geekhack.org/index.php?topic=17458.0

https://geekhack.org/index.php?action=dlattach;topic=17458.0;attach=10519

https://www.pjrc.com/teensy/loader.html