The kit comes with the robot base, two motors with gearbox, two wheels and some mounting accessories.
The tamiya motor with gearbox. It’s rated at 230rpm @ 6V.
The wheel with matching key slot as the gearbox shaft.
Soldered wire connections to the motor.
Fully assembled robot base.
Simple castor at the front.
On/Off switch in the middle of the robot.
Made a simple motor driver using L293D H-bridge IC and some breakout voltage headers for the microcontroller and additional sensors in the future.
The complete robot. Microcontroller, motor driver and all the necessary connections.
Powered by two 18650 3.7V Lithium Polymer rechargeable batteries. It is in series providing up to 7.4V and regulated to 5V using LM2940 Low-Dropout Voltage Regulator.
Below is an explanation why I used a LM2940 low-dropout voltage regulator and not a typical LM7805 voltage regulator.
The bluetooth module.
The circuit. All the connections are made using the 2510 connector. (Google KF2510)
The Arduino waits for a character input to perform a particular action.
Video of robot performing basic movements when receiving serial input from a computer.