1. Product Overview
The Raspberry Pi Pico is a compact, high-performance microcontroller board developed by Raspberry Pi. It features the RP2040, a custom-designed microcontroller chip, offering a flexible platform for a wide range of embedded projects.
Key features include:
- RP2040 Microcontroller: Designed by Raspberry Pi in the UK.
- Processor: Dual-core Arm Cortex M0+ processor, configurable clock speed up to 133 MHz.
- Memory: 264KB of SRAM and 2MB of on-board Flash memory.
- Connectivity: 26 multi-function General Purpose Input/Output (GPIO) pins.
- Form Factor: Castellated module design allows for direct soldering to carrier boards.
Figure 1: Top-down view of the Raspberry Pi Pico microcontroller board, showing the RP2040 chip, USB port, BOOTSEL button, and GPIO pins.
2. Setup Instructions
This section outlines the basic steps to prepare your Raspberry Pi Pico for use.
2.1. Required Components
- Raspberry Pi Pico board (included)
- Micro USB cable (not included)
- Computer with a USB port
- Optional: Breadboard, jumper wires, headers for prototyping.
2.2. Initial Firmware Installation
- Connect to Computer: Press and hold the BOOTSEL button on the Pico. While holding, connect the Pico to your computer using a Micro USB cable. Release the BOOTSEL button once connected.
- Access USB Mass Storage: Your computer should recognize the Pico as a mass storage device named "RPI-RP2".
- Drag and Drop Firmware: Download the desired firmware file (e.g., MicroPython UF2 file) from the official Raspberry Pi website. Drag and drop this UF2 file onto the "RPI-RP2" drive.
- Reboot: The Pico will automatically reboot, and the "RPI-RP2" drive will disappear. The new firmware is now installed.
Figure 2: Angled view of the Raspberry Pi Pico, illustrating its compact size and the Micro USB port for power and data transfer.
3. Operating Instructions
Once firmware is installed, you can begin programming and interacting with your Raspberry Pi Pico.
3.1. Programming Environments
- MicroPython: A lean and efficient implementation of the Python 3 programming language optimized for microcontrollers. Thonny IDE is a recommended tool for MicroPython development on Pico.
- C/C++ SDK: For advanced users, Raspberry Pi provides a comprehensive C/C++ Software Development Kit (SDK) for direct programming.
3.2. GPIO Pin Usage
The Pico features 26 multi-function GPIO pins that can be configured for various purposes, including digital input/output, analog input, PWM, I2C, SPI, and UART communication.
Figure 3: Detailed pinout diagram for the Raspberry Pi Pico, illustrating the function of each of the 40 pins, including power, ground, and various GPIO capabilities.
Refer to the official Raspberry Pi Pico documentation for detailed pin assignments and programming examples for specific functionalities.
4. Maintenance
Proper care ensures the longevity and reliable operation of your Raspberry Pi Pico.
- Environmental Protection: Keep the Pico in a dry environment, away from moisture, extreme temperatures, and direct sunlight.
- Electrostatic Discharge (ESD): Handle the board by its edges to minimize the risk of ESD damage. Consider using an anti-static mat and wrist strap when working with sensitive electronic components.
- Cleaning: If necessary, gently clean the board with a soft, dry brush or compressed air. Avoid using liquids or abrasive materials.
- Physical Protection: Consider using an enclosure for your projects to protect the Pico from physical damage and dust.
5. Troubleshooting
This section addresses common issues you might encounter with your Raspberry Pi Pico.
5.1. Common Issues and Solutions
- Pico not recognized as "RPI-RP2":
- Ensure the BOOTSEL button is held down while connecting the USB cable.
- Try a different Micro USB cable and USB port on your computer.
- Verify the cable is a data cable, not just a charging cable.
- Code not running:
- Check your code for syntax errors.
- Ensure the correct firmware (e.g., MicroPython) is installed.
- Verify that your programming environment (e.g., Thonny) is correctly configured to communicate with the Pico.
- External components not working:
- Double-check all wiring connections.
- Ensure external components are powered correctly and within the Pico's voltage limits.
- Verify the GPIO pins are configured correctly in your code (input/output, pull-ups/downs).
For further assistance, consult the official Raspberry Pi Pico documentation and community forums.
6. Technical Specifications
| Feature | Detail |
|---|---|
| Microcontroller Chip | RP2040 (designed by Raspberry Pi) |
| Processor | Dual-core Arm Cortex M0+ @ 133 MHz |
| SRAM | 264KB |
| Flash Memory | 2MB on-board QSPI Flash |
| GPIO Pins | 26 multi-function GPIO pins (23 digital-only, 3 ADC capable) |
| Analog Inputs | 3 x 12-bit ADC |
| Communication Interfaces | 2 x SPI, 2 x I2C, 2 x UART, 16 x PWM channels |
| USB | Micro USB 1.1 device and host support |
| Power Supply | 2V to 5V DC via Micro USB or VSYS pin |
| Operating Temperature | -20°C to +85°C |
| Dimensions (LxWxH) | 1.97 x 0.79 x 0.39 inches (50 x 21 x 1 mm) |
| Weight | 0.01 ounces (approx. 2g) |
Figure 4: Bottom view of the Raspberry Pi Pico, showing the castellated edges for surface mounting and additional pin labels.
7. Warranty and Support
The Raspberry Pi Pico is designed for educational and hobbyist use. Specific warranty details may vary depending on the retailer and region of purchase. Please refer to your point of purchase for warranty information.
For technical support and further resources, please visit the official Raspberry Pi website and community forums:
