motor-driver

Motor Driver

demo.mp4

The original kit was intended to be done with a STC 89C5RC microcontroller, and probably written in C? Arduino? but I have used an ESP32 and Rust instead for simplicity.

Images

Features

• Use a Lily-Go T-Display S3 board to control a car with 2 motors and a caster wheel.
• The car is controlled by a DVR8833 motor driver, which is controlled by the ESP32 using PWM signals.
• The companion app sends BLE commands to the ESP32 to control the car.
• The companion app is written in Flutter and can be found here.
• The RGB LED goes green when the bluetooth is connected, and red when disconnected.
• THe RGB LED blinks yellow when the motor-drive detects a short circuit / over current / over temperature etc...

Components

• Motor Driver (DVR8833)
• A RGB LED
• 2x Motors (Which I have no idea about its specs)
• A mini power supply (HW-131)
• An Lily-Go T-Display S3
• 2x wheels
• 1x caster wheel
• 1x PCB car chassis (although I'm not using the printed circuit that came with it)
• Wires

How to Run

To run the example, use the following command:

cargo run -p motor-driver

Notes

• When using a Lily-Go T-Display S3 board the pin 15 needs high to be able to power it from the 5v pin instead of USB.