Four-footed walking robots occupy a special place in the gamut of DIY robots. Walking on four legs has always been a challenge. Building these robots thus creates a strong feeling of satisfaction.

Besides the choice of this form of locomotion, you have to select the sensors you want to fit to your robot so it can explore its surroundings. In this case, we selected feelers for short-distance sensing in order to avoid objects. In addition, the robot will be able to detect moving warm objects, such as people and animals, at a greater distance using a passive infrared (PIR) sensor.