myojs-snap
North (formerly Thalmic Labs), the creator of the Myo armband, was acquired by Google in June 2020. Myo sales ended in October 2018 and Myo software, hardware and SDKs are no longer available or supported. Learn more.
A plugin for Myo.js that detects when you snap!
See it in action here (requires a myo!)
snap.myo.js will emit a snap event whenever you snap. It's uses the accelerometer to detect very specific reverbreations in your arm when you snap. It then filters these against your arms muscle activity to reduce false positives from your arm being bumped.
Note: Works best if your arm isn't resting on anything and you have a nice strong snap.
Myo.on('snap', function(){
alert('you snapped!');
})
Check out the demo for an example of how to use it.
configuration
There's a few configuration variables you can tweak.
Myo.plugins.snap = {
max : 2.8,
min : 0.122070312,
blip_threshold : -0.1098632808,
};
These numbers are largely magic, choosen from experimentation. Feel free to experiment with them to make the recognizer work better for you.