1. Introducción
The Waveshare RP2350-Zero Mini Development Board is a compact and powerful microcontroller board designed for embedded projects. It is based on the Raspberry Pi RP2350A microcontroller, featuring a unique dual-core and dual-architecture design with an Arm Cortex-M33 processor and a Hazard 3 RISC-V processor. This board offers impressive processing capabilities in a small form factor, making it suitable for a wide range of applications from robotics and automation to IoT and wearable devices. Its compatibility with existing Raspberry Pi Pico resources and software facilitates ease of development.
2. Contenido del paquete
Verifique que su paquete contenga el siguiente artículo:
- RP2350-Zero Mini Development Board x1
The image above displays the RP2350-Zero Mini Development Board, which is the primary component included in the package.
3. Producto terminadoview
The RP2350-Zero is a Pico-like MCU board based on the Raspberry Pi RP2350A. It is designed as a castellated module, making it suitable for Surface Mount Device (SMD) applications. Key features include its tiny size for easy integration, dual-core and dual-architecture processing, high operating performance, and multi-function GPIO pins.
This image illustrates the compact design and core capabilities of the RP2350-Zero board, emphasizing its suitability for various embedded projects.
4. Especificaciones de la placa
The RP2350-Zero Mini Development Board incorporates the following technical specifications:
- Microprocesador del microcontrolador: RP2350A, designed by Raspberry Pi (UK).
- Arquitectura del procesador: Dual-core design with an Arm Cortex-M33 processor and a Hazard 3 RISC-V processor.
- Frecuencia de reloj: Hasta 150 MHz.
- Memoria: 520KB Static RAM (SRAM) and 4MB on-board Flash memory.
- Conectividad: USB Type-C connector, supporting USB 1.1 (device and host).
- Montaje: Castellated module for direct soldering onto carrier boards.
- Modos de energía: Modos de suspensión y de inactividad de bajo consumo.
- Programación: Drag-and-drop programming via USB mass storage.
- Pines GPIO: 29 multi-functional GPIO pins (20 via edge pinout, others via solder points).
- Periféricos:
- 2 × SPI interfaces
- 2 × I2C interfaces
- 2 × UART interfaces
- 4 × 12-bit Analog-to-Digital Converters (ADC)
- 16 × controllable PWM channels
- Momento: Accurate clock and on-chip timer.
- Sensores: Sensor de temperatura integrado.
- Bibliotecas: Accelerated floating-point libraries on-chip.
- PIO: 12 Programmable I/O (PIO) state machines for custom peripheral support.
The image provides a visual summary of the key specifications, reinforcing the capabilities of the RP2350A microcontroller.
5. Pinout Diagram and GPIO
The RP2350-Zero features 29 multi-function GPIO pins, offering extensive configuration options for flexible development and integration. These pins support various functions including digital I/O, SPI, I2C, UART, ADC, and PWM.
This diagram is crucial for understanding how to connect peripherals and integrate the board into custom circuits, showing power, ground, UART, SPI, I2C, ADC, and PWM pin assignments.
6. On-Board Components and Dimensions
This section identifies the key components on the RP2350-Zero board and provides its physical dimensions.
The diagram above points out important features such as the USB Type-C connector for programming and power, the BOOT and RUN buttons for device control, and the RP2350A microcontroller chip.
This technical drawing provides the exact measurements of the board, essential for integration into custom enclosures or PCBs.
7. Pinheader Options
The RP2350-Zero is available in different configurations regarding pinheaders, allowing for flexibility in mounting and application.
The image illustrates the standard RP2350-Zero (without pinheaders, ideal for direct soldering) and the RP2350-Zero-M (with pre-soldered pinheaders for breadboard compatibility or socket mounting).
8. Soporte de software
The RP2350-Zero supports various programming environments, including C/C++ and MicroPython, providing comprehensive SDKs, development resources, and tutorials to assist users in getting started.
Para C/C++ development, the official Raspberry Pi Pico C SDK can be utilized. This SDK allows for development from the command line or within popular integrated development environments such as Visual Studio Code and Eclipse.
Para MicroPython, a full implementation of the Python 3 programming language is available, designed to run directly on embedded hardware like the Raspberry Pi Pico. This provides an accessible entry point for rapid prototyping and development.
The board's dual-core, dual-architecture design, incorporating an Arm Cortex-M33 processor and a Hazard 3 RISC-V processor, allows for flexible clock speeds up to 150 MHz, enabling diverse programming approaches and efficient execution of complex tasks.
9. Configuración
To begin using your Waveshare RP2350-Zero Mini Development Board, follow these general setup steps:
- Conectar a la computadora: Use a USB Type-C cable to connect the RP2350-Zero board to your computer. The board should appear as a mass storage device.
- Instalar controladores (si es necesario): For some operating systems, specific USB drivers might be required. Refer to the official Raspberry Pi Pico documentation or Waveshare's product wiki for detailed driver installation instructions.
- Instalar el entorno de desarrollo:
- Para C/C++ development, install the Raspberry Pi Pico SDK. Integrated Development Environments (IDEs) like Visual Studio Code or Eclipse can be used.
- Para MicroPython development, install a MicroPython or CircuitPython firmware. Tools like Thonny IDE are commonly used for flashing and programming.
- Firmware flash:
- To enter bootloader mode, press and hold the BOTA button while connecting the USB cable, then release the BOTA button. The board will appear as a removable drive (RPI-RP2).
- Drag and drop the appropriate firmware (.uf2 file) onto the RPI-RP2 drive. The board will automatically reboot and run the new firmware.
- Verificar conexión: After flashing, the board should be recognized by your development environment, allowing you to upload and run programs.
For detailed, up-to-date setup guides and specific software versions, always consult the official Waveshare product wiki for the RP2350-Zero.
10. Instrucciones de funcionamiento
Once the RP2350-Zero is set up with your chosen development environment and firmware, you can begin programming and operating it.
- Encendido: Connect the board to a power source via the USB Type-C port. The board will power on and execute the loaded program.
- Upload Programs:
- In C/C++ environments, compile your code and upload it to the board, often through the USB interface.
- In MicroPython/CircuitPython, use your IDE (e.g., Thonny) to connect to the board's serial port and upload your Python scripts.
- Reinicio del tablero: Presione el CORRER button to reset the board and restart the currently loaded program.
- Interacting with GPIO: Connect external components (sensors, LEDs, motors) to the GPIO pins as per your project's requirements and the pinout diagram (Figure 5.1). Control these components through your programmed code.
- USB Host/Device Functionality: Utilize the USB 1.1 capabilities for connecting to other USB devices (as a host) or appearing as a USB device (e.g., HID, serial port) to a computer.
Always ensure proper wiring and power supply when connecting external components to avoid damage to the board or peripherals.
11. Mantenimiento
Proper care and maintenance will ensure the longevity and reliable operation of your RP2350-Zero board.
- Manejo: Handle the board by its edges to avoid touching components, especially the pins, which can be sensitive to static electricity.
- Almacenamiento: Store the board in an anti-static bag when not in use, in a dry environment, away from extreme temperatures.
- Limpieza: Si es necesario, limpie suavemente la placa con un cepillo suave y seco o aire comprimido para eliminar el polvo. Evite el uso de líquidos o materiales abrasivos.
- Fuente de alimentación: Always use a stable 5V power supply via the USB-C port. Ensure the current draw of connected peripherals does not exceed the board's capabilities (800mA max from LDO regulator).
- Actualizaciones de firmware: Regularly check the Waveshare wiki for firmware updates to benefit from bug fixes and new features.
12. Solución de problemas
This section addresses common issues you might encounter with the RP2350-Zero board.
- Placa no reconocida por la computadora:
- Asegúrese de que el cable USB tipo C esté completamente insertado y funcione.
- Pruebe con un puerto o cable USB diferente.
- Verifique que la placa esté en modo de cargador de arranque (mantenga presionado el botón BOOT mientras conecta el USB).
- Check for necessary USB drivers on your operating system.
- Problemas de actualización del firmware:
- Ensure you are using the correct .uf2 firmware file for the RP2350-Zero. Firmware for RP2040 or RP2400 devices may not be compatible.
- Confirm the board is in bootloader mode (RPI-RP2 drive appears).
- Try re-downloading the firmware file to ensure it's not corrupted.
- Programa no ejecutándose:
- After flashing, press the CORRER button to restart the program.
- Check your code for errors in your development environment.
- Ensure all external connections are correct and stable.
- Serial Port Not Detected (MicroPython/CircuitPython):
- Some users have reported issues with MicroPython serial port detection on certain versions. Consider using CircuitPython as an alternative, which has shown better compatibility in some cases.
- Ensure your IDE is configured to connect to the correct serial port.
- Comportamiento inesperado:
- Verificar la estabilidad de la fuente de alimentación.
- Check for short circuits or incorrect wiring on your breadboard or custom PCB.
- Consult the Waveshare wiki and community forums for similar issues and solutions.
13. Especificaciones detalladas
| Característica | Detalle |
|---|---|
| Marca | Compartir ondas |
| Nombre del modelo | RP2350-Zero Mini |
| Procesador | Raspberry Pi RP2350A (Dual-core Arm Cortex-M33 & Hazard 3 RISC-V) |
| Velocidad de la CPU | Hasta 150 MHz |
| RAM | Memoria RAM de 520 KB |
| Memoria Flash | 4 MB (integrado) |
| Tecnología de conectividad | USB Type-C (USB 1.1 Device/Host) |
| Pines GPIO | 29 multi-functional (20 via edge, others via solder points) |
| Periféricos | 2x SPI, 2x I2C, 2x UART, 4x ADC de 12 bits, 16x canales PWM, 12x máquinas de estado PIO |
| Compatibilidad con sistemas operativos | Linux (for development host), MicroPython, CircuitPython, C/C++ SDK |
| Peso del artículo | 0 ounces (very light) |
| Dimensiones del paquete | 2.76 x 1.97 x 0.87 pulgadas |
| Fabricante | Compartir ondas |
14. Garantía y soporte
For technical support, detailed documentation, and the latest resources, please refer to the official Waveshare product wiki for the RP2350-Zero Mini Development Board. This resource provides comprehensive guides, examples, and community support.
Information regarding specific warranty terms is typically provided at the point of purchase or on the manufacturer's official website. Please consult your retailer or the Waveshare websitio para detalles de la garantía.
Recursos en línea: Oficial de Waveshare Websitio
