NodeJS Blynk - Code Examples for Basic Tasks (Work in Progress)

Projects made with Blynk
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5

4 - Joystick controlled Pan & Tilt Servo

I intentionally used the same vPins as the physical GPIO just for coding consistency, you can use most any pins you want.

const Gpio = require('pigpio').Gpio;

// Joystick with Pan & Tilt Servos
const PAN_PORT = 22;
const TILT_PORT = 23;
const pan = new Gpio(PAN_PORT, {mode: Gpio.OUTPUT});
const tilt = new Gpio(TILT_PORT, {mode: Gpio.OUTPUT});
var JoyX = new blynk.VirtualPin(22);  // Setup Joystick X on V22
var JoyY = new blynk.VirtualPin(23);  // Setup Joystick Y on V23

JoyX.on('write', function(panValue) {  // Watches for Joystick X
  pan.servoWrite(panValue);  // Set Servo to value
});

JoyY.on('write', function(tiltValue) {  // Watches for Joystick y
  tilt.servoWrite(tiltValue);  // Set Servo to value
});
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