Raspberry PI PICO RP2040-Zero microcontroller development board

Raspberry Pi Pico RP2040-Zero Microcontroller Development Board is an ultra-compact, high-performance solution that brings the power of the RP2040 chip into a featherlight form factor. This board utilizes the dual-core Arm Cortex-M0+ processor, consequently delivering an exceptionally fast clock speed and substantial processing power for demanding embedded projects. Featuring 2MB of on-board QSPI Flash memory and versatile GPIO, the Pico-Zero is perfect for space-constrained applications, including wearables, small robots, and custom mechanical keyboards. Furthermore, its low power consumption and rich peripheral set make it an ideal choice for both professional developers and hobbyists. Therefore, deploy this board when you require maximum performance in a minimal footprint without compromising connectivity.

Key Features:

• Dual-Core RP2040 Microcontroller: Integrates the powerful RP2040 chip with two Arm Cortex-M0+ cores, which you can clock up to 133 MHz.
• Minimalist Design: Adopts a small, stamp-sized form factor, making it ideal for integration into extremely compact and portable devices.
• Large Memory Capacity: Features 2MB of on-board QSPI Flash memory, providing ample space for both code and data storage.
• Versatile GPIO: Exposes 20 multi-function GPIO pins, including 4 x 12-bit ADC, 2 x I²C, 2 x SPI, and 2 x UART ports.
• Programmable I/O (PIO): Includes 8 dedicated state machines (4 per core) for custom peripheral support, enabling you to handle unique communication protocols.

Technical Specifications:

• Microcontroller Chip: Raspberry Pi RP2040
• Core Architecture: Dual-Core Arm Cortex-M0+
• Clock Speed: Up to 133 MHz
• SRAM: 264 KB on-chip SRAM
• External Flash Memory: 2MB QSPI Flash (W25Q16JVSSIQ)
• Digital I/O Pins: 20 multi-function pins
• Analog I/O Pins: 4 x 12-bit ADC channels
• Programming Interface: Micro-USB Type-C for power and data/firmware download via UF2 bootloader.
• Operating Voltage: 3.3 V
• Input Power (VBUS): 5 V DC (via USB-C or VBUS pin)

Mechanical Specifications:

• PCB Material: FR-4 (4-layer high-density PCB)
• Mounting: Castellated pads allow soldering directly onto a carrier board for surface-mount applications, or alternatively you can use headers for through-hole use.
• Indicator LED: Single on-board user LED (connected to GP25).

Dimensions:

• Length: ≈ 23.5 mm
• Width: ≈ 17.8 mm
• Thickness (PCB only): ≈ 1.0 mm
• Weight: ≈ 2.5 g (Extremely lightweight)

Pinout and Wiring:

• GPIO Pins: You access these pins along the castellated edges, offering digital input/output, PWM, and special functions like SPI, I²C, and UART.
• VBUS: Supply power to the board using this pin if you do not use the USB connector.
• 3V3(OUT): The on-board regulator provides a stable 3.3V supply output from this pin, therefore you can use it to power external low-power peripherals.
• GND: Connect the ground reference for both the power supply and all connected components here.
• BOOTSEL: Hold this pin low during power-up or reset to enter the UF2 bootloader mode for firmware uploads.

Datasheet Reference:

• Download Raspberry Pi RP2040 Microcontroller Datasheet

Commonly Used in:

• Wearable Electronics: Its small size and low power draw make it perfect for integration into wearable projects.
• Custom HID Devices: Developers frequently use it for creating custom mechanical keyboards, stream decks, and gaming controllers due to the RP2040’s speed.
• Miniature Robotics: Provides the necessary processing power and I/O density for compact robot control.

Applications:

• Embedded Control: Running MicroPython or C/C++ to control various sensors, actuators, and displays.
• Data Logging: Utilize the fast clock speed and ample flash to quickly process and store data from high-speed sensors.
• Signal Processing: The dual-core architecture allows you to dedicate one core to complex signal processing tasks and the other to I/O management, thus significantly improving overall system responsiveness.

Equivalent Models:

• Seeed Studio XIAO RP2040: A similar ultra-small board that also features the RP2040 chip but offers a slightly different pinout.
• Adafruit Feather RP2040: This board uses the same chip but adopts the larger Feather form factor, however, it often includes extra peripheral components like battery management.
• Waveshare RP2040-Zero: Another direct form-factor equivalent to the Pico-Zero, offering identical chip specifications and footprint.

Package Includes:

• 1 x Raspberry Pi Pico RP2040-Zero Microcontroller Development Board