Hi, im a german Mechatronics apprentice.
im running out of Inputs on my Arduino Nano, all DI/O Pins 2-13 are used and my 8 Analog pins on my Nano are also used.
I need just one more Button for my controll.
Heres the question: Can i use the RX0 or the TX1 Pin with an internal aktivatet Pullup resistor to digitalRead a simple button connectet to ground?
Hope you have a great day.
Thanks for your answers.