Analog pin as SPI SS

Projects Networking, Protocols, and Devices
1

hello,

I use few SPI devices connected to Arduino.

I was wondering, is it possible to use Analog pin in output mode as Slave Select for SPI devices?

I know Arduino have plenty of Digital Pins for that, but I would like to use digital pins with PWM to connect ex. Leds

2

Yes can be done - see http://www.arduino.cc/en/Tutorial/AnalogInputPins -
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).

use digitalRead() and digitalWrite() pinnumbers are 14-19

Rob

3

robtillaart:
use digitalRead() and digitalWrite() pinnumbers are 14-19

Or use the constants A0 A1 A2, etc. I find this a little more clear.