"use strict"; var Cylon = require("cylon"); Cylon.robot({ connections: { digispark: { adaptor: "digispark" } }, // when declaring the servo driver you can add an optional `angleLimits` param // (defaults to min: 30 max 150). This param sets limits for the angle, // so sot he servo can't be damaged if it cannot move in the full 0-180 // range, most servos are not capable of this. devices: { servo: { driver: "servo", pin: 0, limits: { bottom: 20, top: 160 } } }, work: function(my) { var angle = 0, increment = 20; every((1).seconds(), function() { angle += increment; my.servo.angle(angle); console.log("Current Angle: " + (my.servo.currentAngle())); if ((angle === 0) || (angle === 180)) { increment = -increment; } }); } }).start();