Evolte - EV Charger Controller

A comprehensive EV Charger control system consisting of a Flutter mobile application and ESP32 firmware for Bluetooth Low Energy (BLE) communication and device control.

📱 Mobile Application

The mobile app is built with Flutter and provides a user-friendly interface for:

• Bluetooth Device Scanning: Discover and connect to ESP32 devices
• Device Control: Send commands to control connected devices
• Real-time Communication: Bidirectional BLE communication with ESP32

Mobile App Tech Stack

• Framework: Flutter
• State Management: GetX
• Bluetooth: flutter_blue_plus
• UI Components: flex_color_scheme, iconsax_flutter
• Utilities: flutter_screenutil, gap, fluttertoast

ESP32 Firmware Tech Stack

• Framework: ESP-IDF
• Bluetooth: NimBLE stack
• Language: C
• RTOS: FreeRTOS

🚀 Getting Started

Prerequisites

• Flutter SDK (^3.8.0)
• ESP-IDF development environment
• Android Studio / VS Code
• ESP32 development board

Mobile App Setup

1. Clone the repository

   git clone <repository-url>
   cd evolte_controller/app_code

2. Install dependencies

   flutter pub get

3. Run the app

   flutter run

ESP32 Firmware Setup

1. Navigate to ESP32 code directory

   cd evolte_esp_code

2. Configure the project

   idf.py menuconfig

3. Build and flash

   idf.py build
   idf.py -p [PORT] flash monitor

📁 Project Structure

evolt_controller/
├── app_code/                 # Flutter mobile application
│   ├── lib/
│   │   ├── app/
│   │   │   ├── controls/     # Device control screens
│   │   │   └── scan/         # BLE scanning and connection
│   │   ├── consts/           # Constants and configurations
│   │   └── widgets/          # Reusable UI components
│   ├── android/              # Android-specific configurations
│   ├── ios/                  # iOS-specific configurations
│   └── pubspec.yaml          # Flutter dependencies
├── evolte_esp_code/          # ESP32 firmware
│   ├── main/
│   │   ├── main.c           # Main firmware code
│   │   └── gatts_demo.c     # BLE GATT service implementation
│   └── CMakeLists.txt       # Build configuration
└── assets/
    └── workflow.png         # System architecture diagram

🔌 Hardware Requirements

• ESP32 Development Board: Any ESP32 variant (ESP32, ESP32-C3, ESP32-S2, ESP32-S3)
• Relay Module: For controlling high-power devices
• Power Supply: Appropriate power supply for your devices

📱 Usage

1. Power on the ESP32 - The device will start advertising as a BLE server
2. Open the mobile app - Launch the Evolte Controller app
3. Scan for devices - The app will automatically scan for available BLE devices
4. Connect to device - Select your ESP32 device from the list
5. Send commands - Use the control interface to send commands to your devices

📄 License

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

🆘 Support

If you encounter any issues or have questions:

• Check the Issues page
• Review the ESP-IDF documentation
• Consult Flutter documentation for app-related questions

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Note: This project is designed for educational and development purposes. Ensure proper safety measures when controlling electrical devices.