Arduino Robotics -

: Uses an ultrasonic sensor (like the HC-SR04) to detect objects and steer around them.

: Typically powered by an Arduino Mega due to its high number of I/O pins, which are needed to control multiple servo motors for joint movements. Arduino Robotics

: Utilizes infrared (IR) sensors to track and follow a black line on a white surface. : Uses an ultrasonic sensor (like the HC-SR04)

: Uses ultrasonic range finders to maintain a specific distance from walls while moving. Arduino Robotics