Hey,
I need additional outputs (don't need to be PWM) and am wondering if the APM2.5 board is like a normal ardu in that the analog pins can be used as general purpose input/output.
A description of the analog input pins on an Arduino chip (Atmega8, Atmega168, Atmega328, or Atmega1280).
A/D converter
The Atmega controllers used for the Arduino contain an onboard 6 channel analog-to-digital (A/D) converter. The converter has 10 bit resolution, returning integers from 0 to 1023. While the main function of the analog pins for most Arduino users is to read analog sensors, the analog pins also have all the functionality of general purpose input/output (GPIO) pins (the same as digital pins 0 - 13).
Consequently, if a user needs more general purpose input output pins, and all the analog pins are not in use, the analog pins may be used for GPIO.
http://arduino.cc/en/Tutorial/AnalogInputPins
Thanks,
Trevor
Replies
Yes, you can use them for what ever you want, but you need to make sure that whatever the current purpose is is disabled.
see http://code.google.com/p/arducopter/wiki/APM2board the A9 connections of the left. Though they all have an optional function currently