Carrotron2 is a robot that can use infrared to create a radar of its surroundings. With working motors, we would also have liked to have added pathfinding and GPS support :)

The robot is controlled via Raspberry Pi and Arduino units. We have a servo attached to the front, onto which the infrared sensor is mounted, enabling a 180 degree vision for the radar.

Using an infrared sensor attached to the front of the robot, we are able to obtain estimations of distances to the nearest solid object. By rotating these sensors constantly, we can obtain a live 'radar' of the surroundings.

The infrared sensor is connected to an analogue pin on the Arduino, which can be read via the Raspberry Pi. This gives us a logarithmic value for distance, which we pass to the Flask server and convert to millimeters. Using Socket.IO we can transmit this value via a socket to the React web app, which then finally converts this distance into a pixel representation and draws it on the canvas.

Unfortunately our motors for the wheels do not quite work correctly, so we have been unable to implement any kind of movement on the robot. Once basic movements have been added, it would then be possible to add GPS support using the GPS module for the Arduino.

Basic pathfinding is possible using the bug algorithm