How do I use the AUX port on the Propeller Activity Board?

Comments

• Mike Green Posts: 23,023

  2019-09-21 - 08:52:42

  I'm not sure what you're asking. The Activity Board is built with I/O pins 26 and 27 already connected to the A/V jack through a D/A converter and amplifier/filters. What is called the AUX port is just a connection to the A/V jack's video/microphone contact with no special circuitry attached.
  
  What do you want to do?
  
• ookkies Posts: 5

  2019-09-21 - 17:43:49

  Mike Green wrote: »

  I'm not sure what you're asking. The Activity Board is built with I/O pins 26 and 27 already connected to the A/V jack through a D/A converter and amplifier/filters. What is called the AUX port is just a connection to the A/V jack's video/microphone contact with no special circuitry attached.
  
  What do you want to do?

  
  I want to run a simple code like this:
  
  #include "simpletools.h" // Include simpletools
  
  int main() // main function
  {
  freqout(4, 1000, 3000); // pin, duration, frequency
  }
  but I'm not sure how to change the pin to connect to the A/V port
• Publison Posts: 11,829

  2019-09-21 - 18:38:56 edited 2019-09-21 - 18:39:33

  As Mike said:

  The Activity Board is built with I/O pins 26 and 27 already connected to the A/V jack

  
  your program would reflect those pins

  freqout(26, 1000, 3000); // pin, duration, frequency
  

  or

  freqout(27, 1000, 3000); // pin, duration, frequency
  

  for Left or Right output on the A/V jack.