Hello, Since all the digita pins are in use I want to use the A0 as digital output to light up an IR led. Normaly for digital pins I first define the pin number (eg Pin8) and then put the led HIGH or LOW: int led_IR = 8; pinMode(led_a, OUTPUT); digitalWrite (led_a, HIGH); When I try to do the …

Define analog pin as output

GrooveFlotilla November 20, 2010, 2:30pm 4

Or simply don't assign a string to an 'int'

1 Like