Generic Calculator Shield for Arduino Photo-journal

[MarkHaysHarris777]

Greetings, ... ok, I finished my development keyboard prototype; pic following. The initial breadboard will have 5 columns x 7 rows, will be interrupt driven, and will be read by the analogRead() calls from the Arduino IDE.

I'm simulating the [ENTER] key from the center of the keyboard. The keyboard will have two layers (second not shown in this pic) to house additional ICs as needed. The hex LCD display will be bolted to the keyboard at one end.

I am currently designing my voltage divider network and interrupt circuit; coming soon, if it all works. ;-)



Cheers,
marcus