Javascript

for Tessel

What is TESSEL ?

What can tessel do ?

ambient

climate

camera

More modules

GPS

InfraRed

MicroSD

InfraRed

More modules

RFID

SERVO

Relay

Tessel code

var tessel = require('tessel');
var servolib = require('servo-pca9685'); 
var servo = servolib.use(tessel.port['A']);
var servo1 = 1; // We have a servo plugged in at position 1

servo.on('ready', function () {
  var position = 0;  
  servo.configure(servo1, 0.05, 0.12, function () {
    setInterval(function () {      servo.move(servo1, position);

      // Increment by 10% (~18 deg for a normal servo)
      position += 0.1;
      if (position > 1) {
        position = 0; // Reset servo position
      }
    }, 500); // Every 500 milliseconds
  });
});

TESSEL uses nodejs

to control modules

WHAT IS NODEJS ?

NODEJS is JAVASCRIPT

javascript

introduction

Variable

var size = 10

var name = "Alex"

Function


function rotateMotor(value) {
  // rotate motor to a direction
  var motor = new Motor('A');
  var newvalue = motor.rotate(value);  return newvalue;
}

object

 var student = {
    name: 'Alex',
    grade: 6
}

var currentDate = new Date();

operator

math operator: 

  + 

  - 

  * 

  / 

assignment: 

  = 

  !=

operator

 comparison:  >
 <

 ==
 >= <=
 logical ! && ||

logic control

 
if (condition) {

} else {

}


while (condition) {
}


for (var i = 0; i < 10; i++ {

}

module

var servolib = require('servo-pca9685'); 

var servolib = require('servo-pca9685');

var servo = servolib.use(tessel.port['A']);


servo.on('ready', function () {
    // do servo operation
});

Javascript

for Tessel

What is TESSEL ?

What can tessel do ?

More modules

More modules

Tessel code

TESSEL uses nodejs

to control modules

NODEJS is JAVASCRIPT

javascript

introduction

Variable

Function

object

operator

operator

logic control

module

Javascript for Tessel

Javascript for Tessel

leapon