HC-SR505

It is used for detects humans/animals.

wired(obniz, {signal [,vcc, gnd]})

It has three pins. Connect them to an obniz directly.

// Javascript Example
var sensor = obniz.wired("HC-SR505", {vcc:0, signal:1, gnd:2});
sensor.onchange = function(val){
  console.log(val ? 'Moving Something!' : 'Nothing moving');
}

onchange = function(value)

It called when something changed.
It humans is closing to a sensor, this function will called with value true.
If a humans leaves or if a human stops moving, this function will called with value false.
It's fileter works. So called with false after soon called with true.

// Javascript Example
var sensor = obniz.wired("HC-SR505", {vcc:0, signal:1, gnd:2});
sensor.onchange = function(val){
  console.log(val ? 'Moving Something!' : 'Nothing moving');
}

[await] getWait()

Get sensor value once.

// Javascript Example
var sensor = obniz.wired("HC-SR505", {vcc:0, signal:1, gnd:2});
var val = await sensor.getWait();
console.log(val ? 'Moving Something!' : 'Nothing moving');


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