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In this Discussion
- colouredmirrorball May 2017
- jeremydouglass May 2017
- Usama1034 May 2017
How can I play an audio using Processing depending on speed measured by sensors?
I've connected two PIR sensors to an arduino and I have programmed it on Arduino IDE such that the Serial monitor calculated the speed of the object by measuring time of detection from each sensor. I want to play a specific audio from the laptop for a certain speed. How can I use Processing to do that? Since it has an option to play audios and IDE does not.
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Answers
It's probably best to cut the problem into smaller subproblems.
Look at the examples of the sound library in Processing. Can you manage to play an audio file?
Can you modify an example in such a way that it plays an audio file when you eg. click with the mouse or hit a keyboard key?
Can you play multiple audio files and trigger them with different keyboard keys?
Can you receive the speed value in Processing using the Serial library and print it to the console?
Can you write a criterium for which audio file you want to play for which range of speeds? Like if speed is 0-10, play file 1, if speed is 11-20, play file 2, ...
Can you implement the logic to select the correct audio file?
And finally, put everything together!
@colouredmirrorball That's how I'm going about it; and I'm currently stuck at getting the speed value. I can't print it to the console.
@Usama1034 -- Is your Arduino sketch already sending the speed value over serial?
If so, for an example of how to receive that value in a Processing sketch over serial, look at the PDE Examples sketch:
Processing > Examples > Libraries > Serial > SimpleRead.pde@jeremydouglass I checked that out. But that way, I keep getting values in bytes, not the calculated speed I had in IDE; or the millis() value of detection time.