[Upcycle It] Hermes 3000 - Post #3

RE: [Upcycle It] Hermes 3000 - Post #3

DAB — Fri, 21 Apr 2017 17:06:56 GMT

Nice update.

I do worry about debounce and you might see some interesting EMI effects if you have a good typist.

It would be a very interesting experiment to set up a signal analyzer with a simple antenna near the keyboard as it is in use.

DAB

mcb1 — Fri, 21 Apr 2017 05:55:49 GMT

Excellent work.

You testing routine has shown some issues that might have caused a headache had you not done this step.

I think you are quite right that timing will be the difference.

I presume that you will get bounce when the key returns as well, so you might need to factor that in.

If the software routine gets too hard, you can always try the hardware approach and install 44 capacitors across the inputs.

Mark

Workshopshed — Fri, 21 Apr 2017 05:37:29 GMT

Is looking good Joey, good choice on the wires.