技能档案

Xiao Rp2040 Arduino

Name: Xiao Rp2040 Arduino
Author: therebelrobot

Provides comprehensive pinout reference, board specifications, and Arduino C++ development guide for the Seeed Studio XIAO RP2040 microcontroller. Use when writing Arduino firmware for the XIAO RP2040, wiring peripherals, or configuring pins. Keywords: XIAO, RP2040, Arduino, Raspberry Pi, dual-core, Cortex-M0+, pinout, GPIO, I2C, SPI, UART, WS2812, RGB LED, PWM, NeoPixel.

therebelrobot0 星标2026年4月15日

分类: 框架内部

技能内容

XIAO RP2040 — Arduino Development Guide

Provides comprehensive reference for developing Arduino C++ firmware for the Seeed Studio XIAO RP2040.

When to Use

Writing Arduino C++ firmware targeting the XIAO RP2040
Looking up XIAO RP2040 pin assignments, alternate functions, or peripheral mappings
Wiring sensors/actuators to the XIAO RP2040 and need GPIO reference
Configuring I2C, SPI, UART, or analog I/O on the XIAO RP2040 in Arduino

When NOT to Use

For TinyGo development on the XIAO RP2040 → use the XIAO-RP2040-TinyGo skill
For other XIAO boards (SAMD21, nRF52840, ESP32-C3) → use the corresponding board skill
For the Raspberry Pi Pico (different board, same MCU)

Board Overview

Parameter	Value

相关技能

Xiao Rp2040 Arduino | Skills Pool

                      [USB-C]
                ┌───────────────┐
      D0/A0   ──┤ 1          14 ├── 5V
      D1/A1   ──┤ 2          13 ├── GND
      D2/A2   ──┤ 3          12 ├── 3V3
      D3/A3   ──┤ 4          11 ├── D10/MOSI
    D4/SDA    ──┤ 5          10 ├── D9/MISO
    D5/SCL    ──┤ 6           9 ├── D8/SCK
     D6/TX    ──┤ 7           8 ├── D7/RX/CSn
                └───────────────┘

Pin	Chip Pin	Digital	Analog	PWM	I2C	SPI	UART	Other
D0	GPIO26	✓	A0	✓	—	—	—	—
D1	GPIO27	✓	A1	✓	—	—	—	—
D2	GPIO28	✓	A2	✓	—	—	—	—
D3	GPIO29	✓	A3	✓	—	—	—	—
D4	GPIO6	✓	—	✓	SDA	—	—	—
D5	GPIO7	✓	—	✓	SCL	—	—	—
D6	GPIO0	✓	—	✓	—	—	TX	—
D7	GPIO1	✓	—	✓	—	CSn	RX	—
D8	GPIO2	✓	—	✓	—	SCK	—	—
D9	GPIO4	✓	—	✓	—	MISO	—	—
D10	GPIO3	✓	—	✓	—	MOSI	—	—

Name	Chip Pin	Arduino Constant	Description
RGB LED (WS2812)	GPIO12	`12`	Addressable RGB LED (NeoPixel)
USER_LED_R	GPIO17	`17`	Red user LED — active LOW
USER_LED_G	GPIO16	`16`	Green user LED — active LOW
USER_LED_B	GPIO25	`LED_BUILTIN` / `25`	Blue user LED — active LOW

MCU	Raspberry Pi RP2040
Architecture	Dual-core ARM Cortex-M0+
Clock Speed	Up to 133 MHz
Flash	2 MB onboard
RAM	264 KB SRAM
Wireless	None
USB	USB Type-C
Operating Voltage	3.3V MCU / 5V input
Dimensions	21 × 17.8 mm
Working Temp	-20°C to 70°C
GPIO Count	14 total (11 digital, 4 analog, 11 PWM)
Onboard	RGB LED (WS2812), 3-color user LED, Power LED, Reset & Boot buttons

Xiao Rp2040 Arduino

XIAO RP2040 — Arduino Development Guide

When to Use

When NOT to Use

Board Overview

Xiao Rp2040 Arduino

XIAO RP2040 — Arduino Development Guide

When to Use

When NOT to Use

Board Overview

Pinout Diagram

Pin Reference Table

Internal / LED Pins

Arduino Setup

Board Manager URL

Pytorch Patterns

Regex Vs Llm Structured Text

Effect

Flags

WPF to WinUI 3 Migration Skill

At Dispatch V2