Motion based PuckJS Media remote control

I have made some progress.

The following code calculates the min and max value for the mag x,y,z axis using Vec3 module. Can you test and show what you get on your puck. The to do at the end of the code shows my next steps.

To use hold down the button for 5 seconds then rotate the puck in all directions until you only see green flashes (no blue). Then press the button to end calibration. The min and max values are then logged on your debug screen.

var Vec3 = require('Vec3');
var vMin = new Vec3();
var vMax = new Vec3();
var calibrating = false;
var count = 0;


// call a function if button is held down for 4 seconds
function b4Seconds(callback) {
  setWatch(function(e) {
    console.log("Button down");
    t4s = setTimeout(function() {
      callback();
    },4000);
    setWatch(function(e) {
      clearTimeout(t4s);
      console.log("Button up");
    }, BTN, { repeat: false, edge: 'falling', debounce: 50 });
  }, BTN, { repeat: true, edge: 'rising', debounce: 50 });
}


function calibrate () {
  console.log('calibrating...');
  calibrating = true;
  var xyz = Puck.mag();
  var sMax = 0; 
  var sMin = 0;
  count = 0;
  vMin = new Vec3(xyz);
  vMax = new Vec3(xyz);
  Puck.magOn(10);
  Puck.on('mag', function(xyz) {
    var vMag = new Vec3(xyz);
    vMin = vMin.min(vMag);
    vMax = vMax.max(vMag);
    if ((sMax !=  vMax.mag()) || (sMin != vMin.mag())) {
      sMin = vMin.mag();
      sMax = vMax.mag();
      count++;
      console.log('new min or max: ',count);
      // flash the blue LED when calibrating
      digitalWrite(LED3, count % 2 == 0);
    } else { 
    // flash the green LED when not calibrating
    digitalWrite(LED2, Math.random()>0.5);
    digitalWrite(LED3, false);
    }
  });
  //press the buton to stop calibrating
  setWatch(function(e) {
    Puck.magOff();
    calibrating = false;
    console.log("calibarion completed");
    console.log('max: ',vMax);
    console.log('min: ',vMin);
    digitalWrite(LED3, false);
    digitalWrite(LED2, false);
    // TO DO 
    // get the zero position when the end calibrate button was pressed
    // calculate the average of vMin and vMax to get the nuteral position
    // calculate the spread of vMin, vMax to scale future readings
    // use the above to find out if the puck is rotating clockwise or anti
    // use the above to find out if the puck is upside down
    // send BT HID key presses
  }, BTN, { repeat: false, edge: 'rising', debounce: 50 });
}

//calibrate by holding button down for 4 seconds
b4Seconds(calibrate);

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     |_| espruino.com

2v03 (c) 2018 G.Williams

Button down
calibrating...
new min or max: 1
new min or max: 2
new min or max: 3
new min or max: 4
new min or max: 5
new min or max: 6
Button up
new min or max: 7
new min or max: 8
new min or max: 9
new min or max: 10
new min or max: 11
new min or max: 12
new min or max: 13
new min or max: 14
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new min or max: 16
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new min or max: 18
new min or max: 19
new min or max: 20
new min or max: 21
new min or max: 22
new min or max: 23
new min or max: 24
new min or max: 25
new min or max: 26
new min or max: 27
new min or max: 28
new min or max: 29
new min or max: 30
new min or max: 31
new min or max: 32
new min or max: 33
new min or max: 34
new min or max: 35
new min or max: 36
new min or max: 37
new min or max: 38
Button down
calibarion completed
max: Vec3: { "x": 794, "y": 527, "z": 124 }
min: Vec3: { "x": 104, "y": -179, "z": -857 }
Button up