Button Presser

README.md

Installation

1. Set up your microcontroller according to the instructions at Johnny-Five
2. Hook up your servo to pin 9 on the microcontroller
3. Install all dependencies with npm install
4. Change the numberOfPresses, pressTime, and releaseTime variables in index.js
5. Run npm run start to begin pressing your button! You'll probably have to adjust the servo horn and whatever you're holding the servo with.

index.js

const five = require("johnny-five");

const numberOfPresses = 100;
const pressTime = 1250; // ms
const releaseTime = 750; // ms

let servo;

const board = new five.Board({
  repl: false
});

board.on("ready", function() {
  servo = new five.Servo({
    pin: 9,
    range: [90, 180]
  });

  cycler(numberOfPresses);
});

function cycler(times) {
  console.log(times);
  if (times === 0) return Promise.resolve();

  return cycle().then(() => {
    return cycler(times - 1);
  });
}

function cycle() {
  let action = new Promise(resolve => {
    servo.max();
    console.log("PRESS");
    setTimeout(() => {
      servo.min();
      console.log("RELEASE");
      setTimeout(() => {
        resolve();
      }, releaseTime);
    }, pressTime);
  });

  return action;
}

package.json

{
  "name": "buttonpresser",
  "version": "0.0.1",
  "main": "index.js",
  "scripts": {
    "start": "nodemon index.js"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "johnny-five": "^1.0.0",
    "nodemon": "^1.18.4"
  }
}