This project provides a simple way to control two DC motors using an Adafruit motor shield and a WebSocket connection. The program receives messages over the WebSocket connection and uses these messages to control the speed and direction of the motors.
To use this program, you will need an ESP32 (I'm using the Adafruit Huzzah ESP32 board, an Adafruit motor-shield, and a Wi-Fi network. You will also need to install the Arduino IDE/VS Code + PIO and the required libraries.
- Connect the Adafruit motor shield to the ESP32 board.
- Open the
main.cppfile in the Arduino IDE. - Modify the Wi-Fi credentials to match your SSID/password.
- Be sure to create a new header file called
src\WiFiCredentials.hand add the following code:
#define SSID "YOUR_SSID_HERE" #define PASSWORD "YOUR_PASSWORD_HERE" - Be sure to create a new header file called
- Upload the code to the ESP32 board.
- Open the Serial Monitor to view the IP address of the ESP32 board.
- Open a web browser and connect to the IP address of the ESP32 board.
The program listens for messages over the WebSocket connection and responds to the following commands:
1sX: Set the speed of the left motor toX, whereXis a value between -100 and 100.2sX: Set the speed of the right motor toX, whereXis a value between -100 and 100.stopMotors: Stop both motors.getValues: Get the current slider values.
The program also supports a turbo mode, which increases the speed of the motors. To enable turbo mode, send the message "turbotrue" over the WebSocket connection. To disable turbo mode, send the message "turbofalse".
Contributions to this project are welcome. If you find a bug or have a feature request, please open an issue on GitHub. If you would like to contribute code, please fork the repository and submit a pull request.
This project is licensed under the MIT License. See the LICENSE file for details.
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Big thanks to Random Nerd Tutorials - I used their tutorial for a good portion of this to get started