Arduino with Haptuator Mark II actuator

Hello,

Currently, I am working on a project controlling Haptuator Mark II actuator (Link:http://tactilelabs.com/products/haptics/haptuator-mark-ii-v2/) using the Haptu-Amp-Quad driver (Link:http://tactilelabs.com/products/haptics/haptu-amp-quad/) with Arduino. I am using an SD shield to store audio(.wav) files and TMRpcm library (link:https://github.com/TMRh20/TMRpcm) to play the audio file through Arduino UNO Pin 9. It's working fine for one Haptuaotr Mark II actuator.

Now, I want to play multiple audio files from the Arduino board simultaneously and control 3 Haptuator Mark II correspondingly. My questions are as follows:

  1. Is it possible to play more than one audio track using the TMRpcm library? Or I need to use other library or other Arduino boards to play 3 audio files differently and simultaneously?

  2. I am able to control one LRA using Haptu-AMP-Quad diver. As per the specification, it is able to control 4 LRAs simultaneously. How to do that?

I am quite new in playing and handling audio files with Arduino. I am looking for your help. Thanks

Is it possible to play more than one audio track using the TMRpcm library?

No.

Those devices look like speakers so you will need an amplifier in front of them but otherwise their should be no hardware trouble driving as many as you like from an Arduino. Feeding them with samples stored on an SD card is however, another matter altogether. But it is comparative easy to feed them with tones. ( square waves ).