Wonrabai Pico 2 W Microcontroller Board User Manual

1. บทนำ

The Wonrabai Pico 2 W is an advanced microcontroller board designed for a wide range of embedded projects and applications. It features the official RP2350 chip, offering a unique dual-core and dual-architecture design with a dual-core Arm Cortex-M33 processor and a dual-core Hazard3 RISC-V processor, capable of running up to 150 MHz. This board integrates 2.4GHz 802.11n WiFi and Bluetooth 5.2 connectivity, making it suitable for IoT and wireless communication projects. It comes with color-coded pre-soldered headers for ease of use and includes a USB cable for convenient connectivity.

Image: The Wonrabai Pico 2 W microcontroller board, showcasing its compact design and pre-soldered headers, alongside a separate header strip and a USB cable.

2. เนื้อหาบรรจุภัณฑ์

ตรวจสอบว่ามีสินค้าทั้งหมดที่ระบุไว้ด้านล่างอยู่ในแพ็คเกจของคุณ:

• Pico 2 W with pre-soldered header (color-coded) x1
• 1*3PIN yellow pin header x1
• USB-A to micro USB cable (~1.2m) x1

Image: Visual representation of the package contents, clearly showing the Pico 2 W board, the additional 3-pin header, and the USB cable.

3. คุณสมบัติและข้อมูลจำเพาะของผลิตภัณฑ์

คุณสมบัติหลัก

• Latest RPi Pico 2 W Microcontroller Board with color-coded pre-soldered header.
• Upgraded hardware from Pico 2 with wireless communication, onboard antenna, 2.4GHz 802.11n WIFI and Bluetooth 5.2.
• Utilizes Official RP2350 Chip with a unique dual-core and dual-architecture design: dual-core Arm Cortex-M33 processor and dual-core Hazard3 RISC-V processor, flexible clock up to 150 MHz.
• หน่วยความจำ SRAM 520KB และหน่วยความจำแฟลชภายในตัวเครื่อง 4MB
• Castellated module for direct soldering to carrier boards.
• USB 1.1 พร้อมรองรับทั้งอุปกรณ์และโฮสต์
• โหมดประหยัดพลังงานและโหมดพักเครื่อง
• การเขียนโปรแกรมแบบลากและวางโดยใช้หน่วยความจำแบบพกพาผ่าน USB
• 26 x multi-function GPIO pins.
• 2 x SPI, 2 x I2C, 2 x UART, 3 x 12-bit ADC, 16 x controllable PWM channels.
• Integrated temperature sensor.
• 12 x Programmable I/O (PIO) state machines for custom peripheral support.

ข้อมูลจำเพาะทางเทคนิค

Pico Series Comparison

Image: A detailed comparison table highlighting the differences and advancements across the Raspberry Pi Pico series, including the Pico 2 W, Pico 2, and original Pico.

4. การตั้งค่าเริ่มต้น

การเชื่อมต่อบอร์ด

To begin using your Wonrabai Pico 2 W, connect it to your computer using the provided USB-A to micro USB cable. The board will typically appear as a mass storage device, allowing for drag-and-drop programming.

Firmware Installation (MicroPython)

For MicroPython development, you will need to flash the appropriate firmware (.uf2 file) onto your Pico 2 W. Follow these steps:

1. Download the latest MicroPython .uf2 firmware file for the Pico 2 W from the official Raspberry Pi webเว็บไซต์หรือแหล่งที่เชื่อถือได้
2. กดปุ่มค้างไว้ บูทเซล button on the Pico 2 W board.
3. ขณะถืออยู่ บูทเซล, connect the Pico 2 W to your computer using the USB cable.
4. ปล่อยตัว บูทเซล button once the board is connected. Your computer should recognize it as a removable drive named 'RPI-RP2'.
5. Drag and drop the downloaded .uf2 firmware file onto the 'RPI-RP2' drive.
6. The board will automatically reboot, and the 'RPI-RP2' drive will disappear. The Pico 2 W is now ready for MicroPython programming.

5. Operating the Pico 2 W

Programming Environments

The Pico 2 W supports various programming environments:

• ไมโครไพธอน: A full implementation of the Python 3 programming language optimized for embedded hardware. Integrated Development Environments (IDEs) like Thonny are recommended for ease of use.
• ชุดพัฒนาซอฟต์แวร์ (SDK) สำหรับภาษา C/C++: The official Raspberry Pi C/C++ Software Development Kit provides comprehensive tools for more advanced development.

Basic Programming Example (MicroPython)

After flashing MicroPython firmware, you can use an IDE like Thonny to write and upload code. A simple example involves controlling a GPIO pin:

from machine import Pin
import time

led = Pin(0, Pin.OUT) # Assuming an LED is connected to GPIO 0

while True:
    led.value(1) # Turn on LED
    time.sleep(1) # Wait for 1 second
    led.value(0) # Turn off LED
    time.sleep(1) # Wait for 1 second

This code will toggle an LED connected to GPIO pin 0 on and off every second.

ภาพ: เหนือview of software development support for the Pico 2 W, including C/C++ SDK and MicroPython, alongside its dual-core architecture and wireless features.

6. GPIO Pinout Diagram

The Wonrabai Pico 2 W features 26 multi-function GPIO pins. The pre-soldered headers are color-coded to assist in identifying pin functions, making connections easier for development and integration. Refer to the diagram below for a detailed pinout.

Image: Comprehensive pinout diagram of the Pico 2 W, illustrating the function of each of the 26 multi-function GPIO pins, including power, ground, communication interfaces, and analog/digital capabilities.

7. มิติทางกายภาพ

Understanding the physical dimensions of the Pico 2 W is crucial for integration into custom projects and enclosures. All measurements are provided in millimeters (mm).

Image: Technical drawing detailing the precise outline dimensions of the Pico 2 W board, with measurements in millimeters for length, width, and component heights.

8 การแก้ไขปัญหา

This section addresses common issues you might encounter with your Pico 2 W board.

• คอมพิวเตอร์ไม่รู้จักบอร์ด:
  • Ensure the USB cable is securely connected to both the board and the computer.
  • ลองใช้พอร์ต USB หรือสายเคเบิลอื่น
  • Verify that you are holding the BOOTSEL button correctly during connection for firmware flashing.
• Firmware Flashing Fails:
  • Confirm that you are using the correct .uf2 file for the Pico 2 W.
  • Ensure the 'RPI-RP2' drive is visible before dragging the .uf2 file.
  • Reboot your computer and try again.
• โค้ดไม่ทำงาน:
  • ตรวจสอบโค้ดของคุณเพื่อหาข้อผิดพลาดทางไวยากรณ์
  • ตรวจสอบให้แน่ใจว่าได้ติดตั้งเฟิร์มแวร์ที่ถูกต้อง (เช่น MicroPython) แล้ว
  • Verify that your IDE (e.g., Thonny) is connected to the correct COM port for the Pico 2 W.
  • Double-check your circuit connections if external components are involved.
• ปัญหาการเชื่อมต่อไร้สาย:
  • Ensure your code correctly initializes and connects to WiFi or Bluetooth.
  • Check for proper antenna placement if applicable (though the Pico W has an onboard antenna).
  • ตรวจสอบว่าข้อมูลประจำตัวเครือข่าย (SSID, รหัสผ่าน) ถูกต้องหรือไม่

9. การรับประกันและการสนับสนุน

For specific warranty information, please refer to the documentation provided at the time of purchase or contact Wonrabai customer support. Additional technical resources, community forums, and detailed documentation for the Raspberry Pi Pico series, including the RP2350 chip, are widely available online through official Raspberry Pi channels and community webเว็บไซต์