I'm building a box with lighted pushbutton switches (momentary-SPST N.O. with LED) that sends keystrokes defined in the sketch to software running on a PC. I've built a working prototype using the Leonardo. Works great! But I need about 14 buttons and the Leo only has 14 outputs. Each button require…

"Hotkey" box with Leonardo--need more pins!

Kwixster October 1, 2017, 7:09pm 3

OK, I give. What clever programming would allow me to address the button and the LED separately?

Topic		Replies	Views
maximum number of buttons and leds Interfacing	23	14877	May 6, 2021
Circuit question Frequently-Asked Questions	4	781	May 6, 2021
How to programming more then 13 switches with Leonardo Programming	9	1802	May 5, 2021
144 LED total 12 buttons with 12 options. Syntax & Programs	10	2814	May 6, 2021
Spricht etwas gegen pinMode wechsel im Betrieb? Deutsch	9	1592	May 6, 2021