Arduino Nano, start/stop button for engine sound and a servo controlled by potentiometer. The original code is from TheDIYGUY999, link in attachment.
I tried to customize the code just for this particular test where I can run the sound engine and in the same time control the servo. The problem I can see is the interrupt, even using dedicated ServoTimer2.h library, the sound is working but not the servo, so do I have another option here or I hit a limitation? Thanks
First of all, why do you rename your sketch to something that can not be opened by the IDE ?!! Great you give it a meaningful name, but don’t put any spaces in it. If you want people to help the best is to post the sketch within </> code-tags, if the size of the sketch gets you in trouble with the 9000 chars rule, remove white lines and meaningless comments until it does fit, or spread it out over 2 posts.
so do I have another option here or I hit a limitation? Thanks
Well i suspect that the PCM playing is using something that the Servo library wants to use, but there is a simple solution that you could try, which is sending the pulse manually every 20ms (or more, most servos work fine with a pulse up to every 100ms) The library is probably using a timer to get trigger that process, but you can use a simple ‘elapsed-time’ check, and hold up the program until the pulse is completed. The audio playing is interrupt based, so that should not be affected.