HP-41CL Remote Keyboard / Scripting

[rocket.scientist]

(04-18-2021 04:43 PM)Sylvain Cote Wrote:  After a quick research I found that the 82153A Wand Service Manual Chapter 2 explains the process of asynchronous remote data entry quite well.

Interesting. This appears to make the optical coupling approach feasible. I need to study the barcode structure further, but the simplistic light-dark (bar-space) ratios coupled with low bandwidth should be easily within the scope of a microcontroller.

I like this.

-Pat (KG5YPQ)