1. บทนำ
The Yahboom Micro:bit Halo Expansion Board is designed to enhance your Micro:bit projects with interactive lighting and sound control capabilities. This expansion board features a circular array of LEDs and an integrated microphone, making it ideal for STEM education and creative programming. It is compatible with both Micro:bit V2 and V1.5 versions.
2. สินค้าหมดview
The Halo Expansion Board integrates a 24-LED RGB ring and a microphone for sound detection. It provides a platform for various interactive projects, from musical light displays to voice-controlled applications. The board is designed with mounting holes for compatibility with building blocks, allowing for versatile physical constructions.
เนื้อหาแพ็คเกจ:
- Yahboom Micro:bit Halo Expansion Board
- สายไมโคร USB
- AAA Battery Holder (without batteries)
- สกรูยึดและตัวเว้นระยะ
- Acrylic Protection Plates

Figure 2.1: Included components of the Halo Expansion Board kit.
3. การตั้งค่า
3.1 Micro:bit Installation
- Align your Micro:bit board with the connector on the Halo Expansion Board.
- Gently push the Micro:bit into the connector until it is securely seated. Ensure all pins are properly aligned to avoid damage.
- Optionally, use the provided acrylic protection plates and screws to secure the Micro:bit to the expansion board.

Figure 3.1: Micro:bit assembly onto the Halo Expansion Board.
3.2 แหล่งจ่ายไฟ
The Halo Expansion Board supports two methods of power supply:
- กำลังไฟไมโคร USB: Connect the provided Micro USB cable to the Micro USB port on the expansion board and to a 5V power source (e.g., computer USB port, USB wall adapter).
- ใช้พลังงานจากแบตเตอรี่ AAA: Insert 3 AAA batteries into the battery holder and connect the battery holder's JST connector to the corresponding port on the expansion board.

Figure 3.2: Micro USB cable power supply connection.

Figure 3.3: AAA battery power supply connection.
4. การดำเนินการ
4.1 Sound-Controlled Lighting Effects
The integrated microphone allows the Halo Expansion Board to react to sound, enabling dynamic lighting effects. Programming is required to utilize these features with your Micro:bit.

รูปที่ 4.1: อดีตamples of sound-controlled lighting effects.
- Musical Lighting: LEDs can synchronize with music or ambient sounds, creating a visual rhythm.
- Voice-controlled Color Switching: The LED colors can change based on detected voice commands or sound levels.
- Voice-controlled LED Lamps: LEDs can illuminate or increase in intensity in response to sound input.
- Rainbow Water Lamp: A dynamic rainbow effect that can be influenced by sound.

Figure 4.2: Integrated microphone for sound detection.
4.2 Building Block Compatibility
The Halo Expansion Board features round holes designed to be compatible with LEGO blocks and other similar building block systems. This allows users to integrate the board into custom physical structures and robotic projects.

Figure 4.3: Halo Expansion Board integrated with building blocks.
5. การบำรุงรักษา
- รักษาความสะอาดของกระดานและกำจัดฝุ่น ใช้ผ้าแห้งนุ่มๆ ในการทำความสะอาด
- ควรหลีกเลี่ยงการวางแผ่นวงจรไว้ในที่ชื้นหรืออุณหภูมิที่สูงหรือต่ำเกินไป
- Handle with care to prevent damage to electronic components.
- When not in use for extended periods, disconnect the power supply (USB or batteries).
6 การแก้ไขปัญหา
- บอร์ดไม่เปิดเครื่อง:
Ensure the Micro USB cable is securely connected to a working 5V power source, or that the AAA batteries are correctly inserted and charged. Check the battery holder connection. - ไฟ LED ไม่ติด:
Verify that the Micro:bit is properly seated on the expansion board. Ensure your Micro:bit program includes code to control the LEDs. Check power supply. - Sound control not working:
Confirm that your Micro:bit program is correctly configured to read input from the microphone. Ensure the microphone is not obstructed. - Micro:bit not recognized:
Ensure the Micro:bit is correctly installed on the expansion board. Try connecting the Micro:bit directly to your computer to verify its functionality.
7. ข้อมูลจำเพาะ
| คุณสมบัติ | ข้อมูลจำเพาะ |
|---|---|
| ยี่ห้อ | ยาห์บูม |
| หมายเลขรุ่น | 1 |
| ความเข้ากันได้ | Micro:bit V2, Micro:bit V1.5 |
| ไฟ LED | 24 RGB LEDs (circular array) |
| ป้อนข้อมูล | ไมโครโฟนแบบบูรณาการ |
| แหล่งจ่ายไฟ | Micro USB (5V), 3x AAA Batteries |
| ขนาด | ประมาณ 2 x 2 x 0.2 นิ้ว (5.08 x 5.08 x 0.51 ซม.) |
| จำเป็นต้องประกอบ | No (Micro:bit installation required) |
8. การรับประกันและการสนับสนุน
Specific warranty information for this product is not provided in the available data. For warranty claims, technical support, or further assistance, please contact Yahboom customer service directly or refer to their official webเว็บไซต์.