Published: Sunday, 26 September 2010
Written by Graham Mitchell
A PS/2 Keyboard can extend the functionality of a humble PIC microcontrollerby 101 Keys with 4 simple connections. There's no need for external components - the PIC Micro has more than enough on-board to handle the entire operation.
Before I press on, its important to note that I am using an AT (Advanced Technology) type keyboard. They aren't very advanced anymore, most have a 6 Mini-DIN connector and cost less than $10 from your local PC store or eBay.
Also, this is a explanatory guide as to how the Swordfish swKBD module can be used in the real world. More information about PS/2 Keyboard protocol other issues will be covered in a future article.
Read more: PS/2 Keyboard Module (swKBD.bas)
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