This is probably a very obvious question to most, but I've read conflicting information about it.
Are the analog pins (specifically on an arduino pro mini) capable of PWM output?
I need three spare PWM out pins and one spare analog read pin, ideally also a spare digital output (non pwm). The LCD takes up lots of pins, so if I can use the spare analog as PWM out I'll be able to do what I want to do.
Forgive my ignorance, but does that make a difference?
I've tried to get it working before but haven't been able to, only the PWM on the digital pins worked.
Do I need to do anything special to address the analog pins for PWM output?
I tried A3 etc, never got it working.
Analog pins (A0-A5) pins can be used as digital I/O pins by using the appropriate pinMode.
Any digital output can be used as a PWM pin if you write the software to drive the output, which will involve a continuous processor overhead.
Only the pins marked with a ~ can be used as hardware-driven PWM pins, and once written-to require no further processor involvement.
On the Uno, these are pins 3, 5, 6, 9, 10, and 11.