Javascript assignment

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1. Make block (highlighted in green) executable for two seconds.

2. Once two seconds execution completed, make next block (highlighted in red) executed.

3. All operations should work simultaneously.

var b = require('bonescript');

var pins = (typeof bone != 'undefined') ? bone : b.bone.pins;

var left_IR_sensor = pins.P9_39;

var center_IR_sensor = pins.P9_40;

var right_IR_sensor = pins.P9_37;

var left_motor_pin = pins.P9_14;

var right_motor_pin = pins.P9_16;

var rearRight_motor_pin = pins.P8_13;

var rearLeft_motor_pin = pins.P8_19;

var left_motor_for_rev = pins.P9_23;

var rearLeft_motor_for_rev = pins.P9_23;

var right_motor_for_rev = pins.P9_25;

var rearRight_motor_for_rev = pins.P9_25;

var left_sensor_value;

var center_sensor_value;

var right_sensor_value;

b.pinMode(left_motor_pin, b.OUTPUT);

b.pinMode(rearLeft_motor_pin, b.OUTPUT);

b.pinMode(right_motor_pin, b.OUTPUT);

b.pinMode(rearRight_motor_pin, b.OUTPUT);

b.pinMode(left_motor_for_rev, b.OUTPUT);

b.pinMode(rearLeft_motor_for_rev, b.OUTPUT);

b.pinMode(right_motor_for_rev, b.OUTPUT);

b.pinMode(rearRight_motor_for_rev, b.OUTPUT);

while(1)

{

left_sensor_value = b.analogRead(left_IR_sensor);

center_sensor_value = b.analogRead(center_IR_sensor);

right_sensor_value = b.analogRead(right_IR_sensor);

if((left_sensor_value != 0.714)&&

(center_sensor_value <= 0.714)&&

(right_sensor_value > 0.714))

{

b.digitalWrite(left_motor_pin, b.HIGH);

b.analogWrite(left_motor_pin, 0.7);

b.digitalWrite(rearLeft_motor_pin, b.HIGH);

b.analogWrite(rearLeft_motor_pin, 0.7);

b.digitalWrite(right_motor_pin, b.LOW);

b.analogWrite(right_motor_pin, 0);

b.digitalWrite(rearRight_motor_pin, b.LOW);

b.analogWrite(rearRight_motor_pin, 0);

}

b.pinMode('P9_14', b.OUTPUT);

b.analogWrite('P9_14', 0, 2000.0, printStatus);

b.pinMode('P9_16', b.OUTPUT);

b.analogWrite('P9_16', 0, 2000.0, printStatus);

b.pinMode('P8_13', b.OUTPUT);

b.analogWrite('P8_13', 0, 2000.0, printStatus);

b.pinMode('P8_19', b.OUTPUT);

b.analogWrite('P8_19', 0, 2000.0, printStatus);

function printStatus(x) {

console.log('x.value = ' + x.value);

console.log('x.err = ' + x.err);

}

}