kblox Neo+ Robotics Kit
About Lesson

Obstacle Avoiding Robot


Here we are going to see how to make an obstacle-avoiding robot. For making this project we need ultrasonic sensors, BO motors, and a Kblox Neo. An Obstacle Avoidance Robot is an intelligent robot, which can automatically sense and overcome obstacles on its path. It consists of a Microcontroller to process the data, and Ultrasonic sensors to detect the obstacles on its path. Obstacle avoidance is one of the most important aspects of mobile robotics.

Components required

  • Kblox Neo
  • Ultrasonic sensor
  • Chassis
  • BO motor [Qty-2]
  • Wheels 75mm [Qty-2]
  • Castor wheel
  • Screw-driver
  • Battery 9V
  • Battery clip
  • A to B USB cable
  • Jumper wires  [M-F, Qty-8]



kblox kit;

void setup() {

  kit.motor_begin(12, 11, 5, 3);    //define motors pins
  kit.ultrasonic_begin(8, 9);       // define ultasonic pins


void loop() {
  int d = kit.ultrasonic_read();   //read distance and store in variable 
  Serial.println(d);               //print data serially 
  if (d >= 25) {                   // if distance is more than 25 move bot forward 
  else {

    kit.right();                   // if distance is less than 25 move bot right



  • It can be used in automatic vacuum cleaning
  • It can be mobile robot navigation
  • They can also be used in dangerous environments, where human penetration could be fatal.