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Mozzi + non-blocking sonar measure experiment.

reineScie

Mozzi + non-blocking sonar measure experiment.

What ?

Concept : A sculpture half-man, half-dolphin. From abyssal sounds to machine entrails, it communicates algorithmically with visitors.

Artistic Technique : unrolled poplar wood (1), elastomer (2) laminated wood on tire.

Digital Technique : ultrasonic distance sensor (3), micro-controller for sensor and sound synthesis(4), speakers.

(1) crate, (2) latex, (3) sonar, (4) using Sensorium/Mozzi library.

How ?

This project was developed with the HC-SR04 ultrasonic range sensor. The common version has several problems, but it can be improved:

http://uglyduck.ath.cx/ep/archive/2014/01/Making_a_better_HC_SR04_Echo_Locator.html
http://wiki.jack.tf/hc-sr04

Once our sonar was fixed, we needed to make it work in parallel with mozzi which means that the classic NewPing driver for arduino would not work as it uses delays and/or interruptions. This code thus implements a non-blocking driver with a state machine, see the comments + text-base graph in the code.