ADDI AI Coding

---

Block coding application utilizing ADDI blocks

📱 Project Introduction

---

Connect Addi blocks via Bluetooth.
Then, perform block coding and execute it to see the ADDI blocks operate in real-time.

📆 When?

---

240201~ , KIST_Creamo

🙂 Members

---

Members
Seungyeon JI
Heeyun HEO
Jiwoo BYUN

⚙️ Environment Setting

---

• IDE: Android Studio 2022.3.1.21
• Flutter SDK: 3.16.8

▶ How to RUN?

---

flutter run lib/main.dart

🏆 Results

---

MAIN PAGE

START PAGE

CONTENT PAGE

HINT PAGE

PUZZLE PAGE

** Connection Block**
When the user drags and drops Connection Block 1, Connection Block 2 is automatically created below it. Even if these two blocks appear separate on the screen, the server recognizes them as connected.

** Repeat Block**
The blocks following the Repeat Block are repeated on the server according to the number specified in the Repeat Count Block located at the end of the loop.

** Speaker Block**
When the user executes the Speaker Block and the Speaker On Block, sound is produced from the actual block.

** Motor Block**
When the user executes the Motor Block and the Direction Block, the actual block moves.

** LED Block**
When the user executes the LED Block and the Color Block, the actual block lights up.

** Image Block**
When the user executes the Image Block, a specific shape appears on the actual block.

📑Flow Chart

---

➕ Details

---

main.dart

• The file that runs the application.

splash_page.dart

• This is the initial screen where Addi AI coding is executed.

start_page.dart

• The page is for choosing between "Getting Started" and "How to Use."

content_page.dart

• You can check the quiz table of contents and select a quiz from here.

puzzle_page.dart

1. Initialization

• The widget initializes with a given image path for the puzzle.

2. Scrolling Interface

• It provides a horizontally scrollable interface divided into sections. The user can scroll through different sections using buttons.

3. Image Drag and Drop

• Users can drag and drop images onto a target area. The dropped images can snap to specific positions based on predefined snap points.

4. Reset Functionality

• There's a reset button to clear all dropped images and reset the puzzle.

5. Bluetooth Integration

• It includes a button to trigger a Bluetooth scan, and another button to initiate a puzzle-solving process which involves generating a sequence of connected block numbers.

6. Trash Can Feature

• Users can drag images to a trash can area to delete them from the puzzle.

7. Image Snap and Connect

• Images can snap to each other when placed close enough, forming connections. This functionality is crucial for solving the puzzle.

8. Bluetooth Data Transmission

• Upon solving the puzzle, the connected block numbers are formatted and sent via Bluetooth.

bluetooth_helper.dart

1. Bluetooth Device Management

• connectedDevice: Represents the currently connected Bluetooth device.
• devices: A list to store available Bluetooth devices discovered during scanning.

2. Bluetooth Scanning

• startBluetoothScan(BuildContext context): Initiates the Bluetooth scan process and handles device discovery.
• _startInitialScanAndShowDevicesDialog(BuildContext context): Starts the initial Bluetooth scan and displays a dialog showing scanning progress.
• _showDevicesDialog(BuildContext context): Shows a dialog with a list of discovered Bluetooth devices, allowing the user to connect to a selected device.

3. Device Connection

• _disconnectDevice(BuildContext context): Disconnects the currently connected device.
• sendData(String data): Sends data to the connected Bluetooth device.

4. Dialogs and Feedback

• _showConnectedDeviceDialog(BuildContext context): Displays information about the currently connected device.
• Feedback through toast messages: Provides feedback to the user regarding connection status and operations (success or failure) using Fluttertoast.

5. Permission Handling

• Requests and handles location permission to enable Bluetooth scanning.

6. Event Handling

• Subscribes to Bluetooth scan results and stops scanning after a specified timeout.
• Handles user interactions such as selecting a device to connect to.

7. Service Discovery and Data Transmission

• Discovers services and characteristics of the connected Bluetooth device.
• Writes data to a writable characteristic of the connected device for data transmission.