The caterpillar is a unique robot with an AVR processor that moves with realistic movements when properly programmed. Precision parts made of ABS plastic and eight miniature servomotors allow a realistic motion sequence. It has antennae on the front and rear that double up as bumpers. Contact is signalled via two-colour LEDs. The robot also has two angle sensors and an I2C bus for individual extensions. The robot is supplied as a kit. Includes a crash course in C-programming! Includes sample programmes.