# Raspberry Pi Pico W > Wireless microcontroller board featuring the RP2040 dual-core Cortex-M0+ processor with built-in WiFi 4 and Bluetooth 5.2 (BLE). Supports MicroPython, CircuitPython, and C/C++ development. ## Quick Facts - **Brand:** Raspberry Pi - **Board Type:** dev-board - **Price:** ~$6 - **Product Readiness:** developer - **CPU:** RP2040 - **CPU Architecture:** ARM Cortex-M0+ - **CPU Cores:** 2 - **RAM:** 264 KB - **Flash:** 2 MB - **USB:** Micro-B - **Power:** 5V - **Operating Voltage:** 3.3V - **Antenna:** Built-in PCB antenna ## Connectivity - **Wifi:** WiFi 4 (2.4 GHz) - **Bluetooth:** BLE 5.2 ## Open Source - **Firmware:** Yes - **Schematics:** Yes - **PCB Layout:** No ## Compatible Firmware micropython, circuitpython, arduino, C/C++ SDK ## Use Cases - IoT - Home Automation - Wireless Sensor Networks - Prototyping - Education ## Components - **RP2040** (Processor): Raspberry Pi's custom dual-core ARM Cortex-M0+ microcontroller running at up to 133 MHz with 264 KB SRAM and programmable I/O. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdatasheets.raspberrypi.com%2Frp2040%2Frp2040-datasheet.pdf&ref=openhardware.directory&product=raspberry-pi-pico-w&source=md-export) - **Infineon CYW43439** (Wireless): Single-chip IEEE 802.11b/g/n WiFi and Bluetooth 5.2 combo device providing wireless connectivity for the Pico W. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.infineon.com%2Fdgdl%2FInfineon-CYW43439-DataSheet-v03_00-EN.pdf&ref=openhardware.directory&product=raspberry-pi-pico-w&source=md-export) ## Protocols - **I2C**: SDA: GPIO4, SCL: GPIO5 - **SPI**: MOSI: GPIO19, MISO: GPIO16, SCK: GPIO18, CS: GPIO17 - **UART**: TX: GPIO0, RX: GPIO1 - **PWM**: - **ADC**: ADC0: GPIO26, ADC1: GPIO27, ADC2: GPIO28 - **PIO**: ## GPIO Map | Pin | Name | Type | Functions | |-----|------|------|-----------| | GPIO0 | UART0_TX — UART Transmit | UART | uart, digital-input, digital-output, pwm | | GPIO1 | UART0_RX — UART Receive | UART | uart, digital-input, digital-output, pwm | | GPIO2 | GPIO2 — General Purpose | — | digital-input, digital-output, pwm | | GPIO3 | GPIO3 — General Purpose | — | digital-input, digital-output, pwm | | GPIO4 | SDA — I2C0 Data | I2C | i2c, digital-input, digital-output, pwm | | GPIO5 | SCL — I2C0 Clock | I2C | i2c, digital-input, digital-output, pwm | | GPIO6 | GPIO6 — General Purpose | — | digital-input, digital-output, pwm | | GPIO7 | GPIO7 — General Purpose | — | digital-input, digital-output, pwm | | GPIO8 | UART1_TX — UART1 Transmit | UART | uart, digital-input, digital-output, pwm | | GPIO9 | UART1_RX — UART1 Receive | UART | uart, digital-input, digital-output, pwm | | GPIO10 | GPIO10 — General Purpose | — | digital-input, digital-output, pwm | | GPIO11 | GPIO11 — General Purpose | — | digital-input, digital-output, pwm | | GPIO12 | SPI1_RX — SPI1 MISO | SPI | spi, digital-input, digital-output, pwm | | GPIO13 | GPIO13 — General Purpose | — | digital-input, digital-output, pwm | | GPIO14 | SPI1_SCK — SPI1 Clock | SPI | spi, digital-input, digital-output, pwm | | GPIO15 | SPI1_TX — SPI1 MOSI | SPI | spi, digital-input, digital-output, pwm | | GPIO16 | SPI0_RX — SPI0 MISO | SPI | spi, digital-input, digital-output, pwm | | GPIO17 | SPI0_CS — SPI0 Chip Select | SPI | spi, digital-input, digital-output, pwm | | GPIO18 | SPI0_SCK — SPI0 Clock | SPI | spi, digital-input, digital-output, pwm | | GPIO19 | SPI0_TX — SPI0 MOSI | SPI | spi, digital-input, digital-output, pwm | | GPIO20 | I2C0_SDA — I2C0 Data (alt) | I2C | i2c, digital-input, digital-output, pwm | | GPIO21 | I2C0_SCL — I2C0 Clock (alt) | I2C | i2c, digital-input, digital-output, pwm | | GPIO22 | GPIO22 — General Purpose | — | digital-input, digital-output, pwm | | GPIO26 | ADC0 — Analog Input 0 | ADC | adc, digital-input, digital-output | | GPIO27 | ADC1 — Analog Input 1 | ADC | adc, digital-input, digital-output | | GPIO28 | ADC2 — Analog Input 2 | ADC | adc, digital-input, digital-output | | GPIO29 | ADC3 — VSYS Monitor (internal) | ADC | adc | ## Description # Raspberry Pi Pico W The Raspberry Pi Pico W is the wireless variant of the popular Pico microcontroller board. Built around the RP2040 chip — a dual-core ARM Cortex-M0+ running at up to 133 MHz — it adds an Infineon CYW43439 module for WiFi 4 (802.11n) and Bluetooth 5.2 (BLE) connectivity. ## Key Features - **Dual-core RP2040** processor at up to 133 MHz - **264 KB SRAM** and **2 MB onboard flash** - **WiFi 4** (802.11b/g/n) 2.4 GHz and **Bluetooth 5.2** (BLE) - **26 multifunction GPIO pins** including 3 analog inputs - USB 1.1 Micro-B for power and programming - Onboard temperature sensor - Castellated module pins for direct soldering to carrier boards - Drag-and-drop programming via UF2 bootloader ## Programming Support - **MicroPython** — official Raspberry Pi MicroPython port with networking libraries - **CircuitPython** — Adafruit's beginner-friendly Python variant - **C/C++ SDK** — the official Pico SDK for maximum performance - **Arduino IDE** — community-supported Arduino core ## Connectivity The CYW43439 wireless chip provides single-band 2.4 GHz WiFi and BLE, making the Pico W suitable for IoT applications, web servers, MQTT clients, and wireless sensor networks. ## Pinout and Interfaces - 2x SPI, 2x I2C, 2x UART, 16x PWM channels - 3x 12-bit ADC channels - 8x Programmable I/O (PIO) state machines - USB 1.1 host and device support ## Where to Buy - [OpenELab](https://openhardware.directory/r?to=https%3A%2F%2Fopenelab.io%2Fproducts%2Fraspberry-pi-pico-w-wireless-rp2040-mcu-board&ref=openhardware.directory&product=raspberry-pi-pico-w&source=md-export) — $6.00 ## Resources - [product](https://openhardware.directory/r?to=https%3A%2F%2Fwww.raspberrypi.com%2Fproducts%2Fraspberry-pi-pico%2F&ref=openhardware.directory&product=raspberry-pi-pico-w&source=md-export) - [datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdatasheets.raspberrypi.com%2Fpicow%2Fpico-w-datasheet.pdf&ref=openhardware.directory&product=raspberry-pi-pico-w&source=md-export) - [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2Fraspberrypi%2Fpico-sdk&ref=openhardware.directory&product=raspberry-pi-pico-w&source=md-export) ## Tags `rp2040`, `wifi`, `bluetooth`, `micropython`, `circuitpython`, `iot`, `microcontroller` ## Images ![Raspberry Pi Pico W](https://nbg1.your-objectstorage.com/openhardware-directory/entities/raspberry-pi-pico-w/501b1ff46dad.png) --- [View full device page](https://openhardware.directory/devices/raspberry-pi-pico-w)