Re: New Project: keyboard keyer
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Greetings, Thank you Bruce W8BH, for sharing such a fun project with the World.. I recently built the Keyboard Keyer on a breadboard. To do so, I needed to breadboard the PS/2 port. My solution was to use some stripboard to make a BreakOut Board (BOB). This is the diagram of the BOB I made: This is what the actual breakout board looks like after soldering it together. I superglued the FR4 sides of the stripboard together, lining up the holes. For vias, I used pieces of resistor wire, bent in a U shape. I soldered the free ends of the U first, then soldered the U side, then clipped off the U. The support tabs on the PS/2 port hang over the edge and do not need to be soldered. I was able to plug the BOB into the breadboard, then add the voltage divider resistors to the breadboard. I soldered male headers on the OLED, so it fit on the breadboard. Likewise for the XIAO. Here is a short video clip of Step 3b of the Keyboard Keyer tutorial: My eyes are not what they used to be, so I drew diagrams for the XIAO, OLED, and the Piezo. Hopefully helpful. Finally, here is a snapshot of the completed breadboard with the final KeyboardKeyer sketch uploaded. It works as advertised. This is a fun project to breadboard. Ken, KM4NFQ "Not Fully Qualified" /g/w8bhMorseTutor On Fri, Aug 27, 2021 at 6:31 PM Bruce Hall <bhall66@...> wrote:
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Ken KM4NFQ