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.
var f3js = require('f3js');
var x = 5 /* Offset x [0, 100] */
, y = 5 /* Offset y [0, 100] */;
f3js.drawRectangle(x, y, 195, 70);
// load drivers.
var grove = require('jsupm_grove');
var groveMotion = require('jsupm_biss0001');
var GCL = require("jsupm_my9221");
var tm1637 = require('jsupm_tm1637');
var LCD = require('jsupm_i2clcd');
// instantiate a circular led driver.
var circle = new GCL.GroveCircularLED(3, 2);
// Initialize 4-digit display and Jhd1313m1 LCD display
var display = new tm1637.TM1637(4, 5);
var myLcd = new LCD.Jhd1313m1(0, 0x3E, 0x62);
myLcd.setColor(255, 0, 0);
// put the circular led and displays.
f3js.add(circle, x + 30, y + 30);
f3js.add(display, x + 80, y + 20);
f3js.add(myLcd, x + 150, y + 27.5);
//f3js.drawRectangle(x + 105, y + 37.5, 5, 10);
var level = 0, colon = true;
function rotateSpinner() {
var date = new Date();
var time =
("0" + (date.getHours()+9).toString()).slice(-2)
+ ("0" + date.getMinutes().toString()).slice(-2);
display.writeString(time);
display.setColon(colon);
circle.setSpinner(level ++);
if (level > 24) level = 0;
}
var circleInterval = setInterval(rotateSpinner, 100);
// instantiate a motion sensor.
var sensor = new groveMotion.BISS0001(8);
// put the motion sensor.
f3js.add(sensor, x + 80, y + 50);
f3js.drawRectangle(x + 55, y + 44, 5, 10);
var counter = 0, lastTime = 0;
function readSensorValue() {
var date = new Date();
// detect motion.
if (sensor.value() > 0) {
console.log('o ' + date.toString());
var time = date.getTime();
if (time - lastTime > 5000) {
countUp();
}
lastTime = date.getTime();
}
colon = !colon;
}
function countUp() {
counter ++;
var counterString = '' + counter;
if (counter % 10 === 1) counterString += 'st';
else if (counter % 10 === 2) counterString += 'nd';
else if (counter % 10 === 3) counterString += 'rd';
else counterString += 'th';
myLcd.setColor(255, 0, 0);
myLcd.setCursor(0,0);
myLcd.write(counterString + ' visitor');
myLcd.setCursor(1,0);
myLcd.write('running on f3.js');
}
var sensorInterval = setInterval(readSensorValue, 1000);
process.on('SIGINT', function()
{
clearInterval(circleInterval);
clearInterval(sensorInterval);
});
f3.js