[GreenKeys] Raspberry Pi loop interface

[Jeffrey Golas]

Ive been successful with Arduino and a literal relay, look at Hackaday.

Jeff

> On Nov 13, 2024, at 9:46 PM, John, W9DDD <w9ddd at tapr.org> wrote:
> 
> A while back someone mentioned making an interface between a Pi and a 60 mA loop. I don't recall any details being discussed at the time.
> 
> Questions
> 
> 1. What I/O pins on the 40 header did you use?
> 
> 2. Were you able to use any of the internal UARTs or did you do bit banging?
> 
> I ran into problems with an Arduino with it not being able to run the UART slow enough and I don't recall if that's a problem with the Pi.
> 
> 
> I'm finally making a transition from an old program that originally ran on DOS (and eventually Windows) to KiCAD and decide this would be a simple enough project ro practice with.
> 
> 
> --
> ---
> ----
> The above comments or recommendations are SWAG. Use at your own risk.
> 
> John, W9DDD
> 
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