Advancd RC Car Project

This is a personal project that adds fun to a RC car.

I will post my progress here as reference for me and for anybody who would love to modify their RC car.

2019 July 28

1. Changed the original rc control circuit to a raspberry pi base circuit.

   • I used a PCA 9685 for control all the car devices, including the servo and motor's H bridge . This simplify the connection between pi and all the car devices to a 2 pin i2c. Meanwhile,the 16 pwm channels pca 9685 provided leaves enough upgrade space.

   • Raspberry pi zero W is used here for main controller here, but I think it is over kill for now(remote control only)

   • I replacing the original speed controller to a H bridge board(tb6612fng) for more control over the motor, but it is too weak for the motor and its get overheat very easily. I am about upgrade this.

2. I used for g27 wheel for controlling my car. I even implemented the first gear and reverse gear.

   • I used a simple upd protocol form communication between g27 and rc car. Code are provided below.
     • server side: a sim le udp server that obtain five pwm value. Code
     • client side : Pygame is used for getting value from g27. When g27 updates its status, I calculated the corresponding pwm value for rc car and send it over via udp. Code