Designing solution

For making car controllable by Smartphone, we will remove its control board, build a new one with a Bluetooth capability, install it in the car, and use the app on the smartphone for controlling it. The whole solution should look like this:

• Smartphone with an app – for controlling the car.
• Cars control board, for controlling the car and consisting of:
• Bluetooth module – for phone communication and control. The selected cc2541 module contains Bluetooth module and MCU in one SoC package.
• H-bridge - for driving motors.
• Transistors and resistors – for driving LEDs and steering magnets.
• Voltage regulator and capacitors – for providing stable power to the Bluetooth module.
• PCB – for assembling all components into control board.
• Some firmware for Bluetooth module.
• The actual car