Just heard about 3pi robot on a magzine very good and cheap robot kit.
That can be programmed in C language. I really
like its speed.
The Pololu 3pi robot is a complete, high-performance mobile platform featuring two micro metal gearmotors, five reflectance sensors, an 8×2 character LCD, a buzzer, and three user pushbuttons, all conn
ected to a C-programmable ATmega168 microcontroller. Capable of speeds exceeding 3 feet per second, 3pi is a
great first robot for ambitious beginners
and a perfect second robot for those looking to move up from non-programmable or slower beginner robots.