Instructions | Pro Trinket radio controlled car

1

Step 1

Dissasemble the RC car and keep the chassis structure, suspension (if exists); wheels, motor, gearbox and so on. Receiver board, remote and plastic body/aileron can go now to the parts bin
2

Step 2

Make space in the battery holder for the LiPo (dremel it until it fits)
3

Step 3

Remove the geared motor that drives the steering and replace it with the servo (dremel, metal pins, hot glue...)
4

Step 4

Connect the LiPo battery and the motor to the motor driver board. Secure it somewhere (hot glue, screws...). The driver board provides 5V for the trinket and its friends.
5

Step 5

Disassemble the DualShock receiver and make it breadboard-friendly. I glued a piece of perfboard and soldered wires from the PS2 connector to a pin strip. I've read online that it only works at 3.3V but mine works fine at 5V.
6

Step 6

Connect the Pro Trinket, the OLED, the receiver and the driver board together. The pins I used are on first section of Cochecito2.ino ("#define" section)
7

Step 7

Uplolad sketch (all .ino files) to the Pro Trinket. It requires Adafruit SSD1306, Adafruit SoftServo, PS2X_lib and EEPROM.h libraries.
8

Step 8

Open a beer and play around :-)

Pro Trinket radio controlled car