I’ve once use L298N for my line follower robot. This is cheap and able to control motor which need quite electric current to run. I recommend this driver IC for your robot… 
Download the schematics an tutorial here
Robotics is the branch of technology that deals with the design, construction, operation, structural disposition, manufacture and application of robots. Robotics is related to the sciences of electronics, engineering, mechanics mechatronics, and software
| Title | : | 2A DC Motor Controller with L298N |
| Category | : | Electronics, Robotics Tutorial. |
| Tags | : | actuator, L298 Motor Driver, l298 motor driver circuit, l298 pcb, l298n, l298n circuit, l298n dc motor, l298n schematic, tutorial, |
Robotics Short Story
The word robotics was derived from the word robot, which was introduced to the public by Czech writer Karel Čapek in his play R.U.R. (Rossum's Universal Robots), which premiered in 1921.
According to the Oxford English Dictionary, the word robotics was first used in print by Isaac Asimov, in his science fiction short story "Liar!", published in May 1941 in Astounding Science Fiction. Asimov was unaware that he was coining the term; since the science and technology of electrical devices is electronics, he assumed robotics already referred to the science and technology of robots. In some of Asimov's other works, he states that the first use of the word robotics was in his short story Runaround (Astounding Science Fiction, March 1942). However, the word robotics appears in "Liar!"
The word robotics was derived from the word robot, which was introduced to the public by Czech writer Karel Čapek in his play R.U.R. (Rossum's Universal Robots), which premiered in 1921.
According to the Oxford English Dictionary, the word robotics was first used in print by Isaac Asimov, in his science fiction short story "Liar!", published in May 1941 in Astounding Science Fiction. Asimov was unaware that he was coining the term; since the science and technology of electrical devices is electronics, he assumed robotics already referred to the science and technology of robots. In some of Asimov's other works, he states that the first use of the word robotics was in his short story Runaround (Astounding Science Fiction, March 1942). However, the word robotics appears in "Liar!"
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Check out our new robotic micro-controller The Brain..it is awesome
dear sir,
igive small walking robotic circuit