raspi_gpio 0.0.1

A Flutter plugin for controlling Raspberry Pi GPIO pins, supporting LED control, motor control, and button input.

Raspi GPIO Flutter Plugin

A Flutter plugin for controlling Raspberry Pi GPIO pins on Android Things OS. This plugin provides an easy-to-use interface for controlling LEDs, motors, and reading button inputs on a Raspberry Pi.

Features

• Control LEDs (turn on/off)
• Control motors with PWM speed control
• Read button input states
• Support for multiple GPIO pins
• Event-based button state monitoring

Getting Started

Prerequisites

• Flutter SDK
• Android Things OS on Raspberry Pi
• Android Studio or VS Code with Flutter extensions

Installation

Add the following to your pubspec.yaml:

dependencies:
  raspi_gpio: ^0.0.1

Usage

1. Initialize the GPIO:

await RaspiGpio.initialize();

2. Control an LED:

await RaspiGpio.setLedState(18, true); // Turn on LED on pin 18

3. Control a motor:

await RaspiGpio.controlMotor(
  in1Pin: 22,
  in2Pin: 23,
  enPin: 24,
  speed: 50, // 0-100
  direction: true, // true for forward, false for backward
);

4. Listen to button presses:

RaspiGpio.listenToButton(17).listen((state) {
  print('Button state: $state');
});

Example

See the example directory for a complete example app demonstrating all features.

Pin Configuration

The example app uses the following pin configuration:

• LED: GPIO 18
• Motor IN1: GPIO 22
• Motor IN2: GPIO 23
• Motor EN (PWM): GPIO 24
• Button: GPIO 17

You can modify these pin numbers according to your hardware setup.

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the MIT License - see the LICENSE file for details.