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Camera w/wo countdown
'16/7/6 20:53
A camera whose features and appearance can be customized! With or without a countdown timer.
Jun Kato

Private Project

This project is already public and cannot be made private.

Source Code

Provide the source code of a microcontroller or tiny computer in JavaScript. Node.js-based computers are supported. Require f3js package and use its API to design the device enclosure.

// instantiate the camera var Camera = require('jsupm_grovescam').GROVESCAM; var camera = new Camera(0); if (camera.setupTty && !camera.setupTty()) { console.log('failed to initialize connection to the camera'); process.exit(1); } if (camera.init && camera.init()) console.log('camera initialized'); else console.error('init() failed'); // instantiate sensors and actuators var groveSensor = require('jsupm_grove'); var gcl = require("jsupm_my9221"); var button = new groveSensor.GroveButton(3); // set layout parameters var f3js = require('f3js') , x = 10 , y = 10 , useCountdown = true /* Use the countdown feature. */ , width = useCountdown ? 130 : 60 , height = 105 , thickness = 45 /* Thickness [10, 100] */ , dw = 5 /* Joint width [0, 10] */ , dh = 2 /* Joint height (panel thickness) [0, 10] */; // put base board var rect = f3js.drawJointRectangle(x, y, width, height, dw, dh, true); var planes = rect.extrude(thickness); planes[4].x = width; planes[4].y = 0; f3js.add(planes[4]); // put sensors and actuators var leftMargin = 28 // Left margin [0, 100] , topMargin = 30; // Top margin [0, 100] f3js.add(camera, { x: x + leftMargin + 0, y: y + topMargin + 0 }); f3js.add(button, { x: x + leftMargin + 0, y: y + 75 }); var circle; if (useCountdown) { circle = new gcl.GroveCircularLED(5, 4); f3js.add(circle, { x: x + width - 30, y: y + topMargin + 0 }); f3js.drawRectangle(x + width - 30 - 6, y + topMargin - 18, 12, 3); } // draw circles... for (var i = 0; i < 7; i ++) { f3js.drawCircle( x + width - (i + 1) * 10 , y + height - 10 , 1); // additional holes } // put side boards var margin = dh; planes[0].x = x; planes[0].y = y + height + margin; f3js.add(planes[0]); planes[1].x = x + width; planes[1].y = y + height + margin - dh; f3js.add(planes[1]); planes[2].x = x + height; planes[2].y = y + height + thickness + margin; f3js.add(planes[2]); planes[3].x = x; planes[3].y = y + height + thickness + margin; f3js.add(planes[3]); // put a side hall planes[3].drawRectangle( 5, thickness - dh - 15, height - 10, 10); // take a picture after a while var ready = true; function readButtonValue() { // detect button push if (ready && button.value() > 0) { ready = false; if (!useCountdown) { // immediately take a photo takePicture(); } else { // or use countdown var cycle = 300 , maxLevel = 24 , level = maxLevel; // start countdown timer var countDown = setInterval(function() { level --; console.log("countdown: ", level); circle.setLevel(level); // take a picture! if (level <= 0) { takePicture(); clearInterval(countDown); ready = true; } }, cycle); } } } setInterval(readButtonValue, 100); function takePicture() { if (camera.preCapture && camera.preCapture()) console.log('camera prepared for capturing images'); else console.error('camera failed to prepare for capturing images'); if (camera.doCapture()) console.log('camera capturing an image'); else console.log('camera failed to capture an image'); if (camera.getImageSize() > 0) { console.log('storing an image ...'); if (camera.storeImage('image.jpg')) console.log('camera successfully captured the image: image.jpg'); else console.log('camera failed to store the captured image: image.jpg'); } } var var29169 = false; // *proposed* Flash ON/OFF var var83594 = false; // *proposed* Shutter noise ON/OFF
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