I normally use three sensors, one facing directly forward, and two to the sides, between 10 and 45 degrees out. Because you are moving, the sensors read a large area. Report comment ...

Yogy, an Arduino-based obstacle avoidance robot from Instructables user Jaidyn Edwards (chickenparmi) might look like an empty yogurt container with eyes…but that’s only because it is. We’ve ...

The build relies on the classic Arduino Uno microcontroller, which talks to a HC-SR04 ultrasonic sensor module and two infrared sensors in order to track a human target and follow it around.