example_blue.js

var blue = require("bluetoothctl");
var sleep = require('sleep');
blue.Bluetooth()


blue.on(blue.bluetoothEvents.Controller, function(controllers){
console.log('Controllers:' + JSON.stringify(controllers,null,2))
});


blue.on(blue.bluetoothEvents.DeviceSignalLevel, function(devices,mac,signal){
    console.log('signal level of:' + mac + ' - ' + signal)

});

blue.on(blue.bluetoothEvents.Device, function (devices) {
    console.log('devices:' + JSON.stringify(devices,null,2))
})

blue.on(blue.bluetoothEvents.PassKey, function (passkey) {

    console.log('Confirm passkey:' + passkey)
    blue.confirmPassKey(true);
})

var hasBluetooth=blue.checkBluetoothController();
console.log('system has bluetooth controller:' + hasBluetooth)



if(hasBluetooth) {
    blue.power(true)
    console.log("power is on")

    blue.discoverable(true);
    console.log("discoverable is on")

    blue.pairable(true);
    console.log("pairable is on")

    blue.agent(true)
    console.log("agent is on")

    while (true){
        console.log('isBluetooth Ready:' + blue.isBluetoothReady)

        sleep.sleep(2)
    }
    // blue.scan(true)

    // setTimeout(function(){
    //     console.log('stopping scan')
    //     blue.scan(false)
    //     blue.info('00:0C:8A:8C:D3:71')
    // },20000)
}