# Raspberry Pi Zero WH > Raspberry Pi Zero W with pre-soldered 40-pin GPIO headers. BCM2835 single-core 1GHz ARM11, 512MB RAM, built-in 802.11 b/g/n WiFi (BCM43143), Bluetooth LE, Mini HDMI, Micro USB, and MicroSD. No soldering required. ## Quick Facts - **Brand:** Raspberry Pi - **Board Type:** dev-board - **Price:** ~$16 - **Product Readiness:** consumer - **CPU:** Broadcom BCM2835 ARM11 single-core - **CPU Architecture:** ARM11 (ARMv6) - **CPU Cores:** 1 - **RAM:** 512 MB - **Flash:** N/A (MicroSD card) - **Power:** 5V via Micro USB power port - **Operating Voltage:** 3.3V - **Dimensions:** 65mm × 31mm × 11.6mm - **Weight:** 11.5g - **SD Card:** microSD ## Connectivity - **Wifi:** 802.11 b/g/n - **Bluetooth:** Bluetooth 4.0 LE ## Open Source - **Firmware:** No - **Schematics:** Yes - **PCB Layout:** No ## Certifications FCC, CE, RoHS ## Compatible Firmware micropython ## Use Cases - linux-sbc - iot-gateway - education - camera-projects - retro-gaming - media-server ## Components - **BCM2835** (mcu): Single-core ARM11 (ARMv6) SoC at 1 GHz with VideoCore IV GPU, 512MB LPDDR2 SDRAM. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdatasheets.raspberrypi.com%2Fbcm2835%2Fbcm2835-peripherals.pdf&ref=openhardware.directory&product=raspberry-pi-zero-wh&source=md-export) - **BCM43143** (wireless-module): Cypress BCM43143 combination 802.11 b/g/n WiFi and Bluetooth LE chip. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.cypress.com%2Ffile%2F298811%2Fdownload&ref=openhardware.directory&product=raspberry-pi-zero-wh&source=md-export) ## Protocols - **I2C**: SDA: GPIO2, SCL: GPIO3 - **SPI**: MOSI: GPIO10, MISO: GPIO9, SCK: GPIO11, CE0: GPIO8, CE1: GPIO7 - **UART**: TX: GPIO14, RX: GPIO15 - **I2S**: BCLK: GPIO18, LRCLK: GPIO19, DATA: GPIO21 - **PWM**: PWM0: GPIO18, PWM1: GPIO19 ## GPIO Map | Pin | Name | Type | Functions | |-----|------|------|-----------| | GPIO2 | SDA | I2C | digital-input, digital-output | | GPIO3 | SCL | I2C | digital-input, digital-output | | GPIO4 | GPIO | — | digital-input, digital-output | | GPIO9 | MISO | SPI | digital-input, digital-output | | GPIO10 | MOSI | SPI | digital-input, digital-output | | GPIO11 | SCK | SPI | digital-input, digital-output | | GPIO14 | TX | UART | digital-input, digital-output | | GPIO15 | RX | UART | digital-input, digital-output | | GPIO17 | GPIO | — | digital-input, digital-output | | GPIO18 | GPIO/PWM | — | digital-input, digital-output, pwm | | GPIO22 | GPIO | — | digital-input, digital-output | | GPIO23 | GPIO | — | digital-input, digital-output | | GPIO24 | GPIO | — | digital-input, digital-output | | GPIO25 | GPIO | — | digital-input, digital-output | | GPIO27 | GPIO | — | digital-input, digital-output | ## Available Software - **[Raspberry Pi OS]()** (open-source) - **[Linux]()** (open-source) ## Description ## Overview The Raspberry Pi Zero WH is the header-equipped variant of the Raspberry Pi Zero W — a full Linux single-board computer in a credit-card-quarter form factor measuring just 65mm × 31mm. The "WH" designation indicates it ships with a standard 40-pin 2.54mm GPIO header pre-soldered, eliminating the need for soldering before connecting HATs or breadboard wires. The board runs on the Broadcom BCM2835 SoC — the same chip used in the original Raspberry Pi — with a single-core ARM11 processor at 1 GHz and 512MB of LPDDR2 SDRAM. Built-in WiFi (BCM43143, 802.11 b/g/n) and Bluetooth LE are provided by a Cypress combination module with a chip antenna. Storage uses a MicroSD card slot. Video output is via Mini HDMI. A single Micro USB OTG port handles both USB peripherals and data, while a second Micro USB port is dedicated to power. The Zero WH runs the full Raspberry Pi OS (formerly Raspbian) and supports the entire Raspberry Pi HAT ecosystem. It can run Python, Node.js, C/C++, and virtually any Linux software, making it appropriate for camera projects, retro gaming emulators, IoT gateways, media servers, and electronics education. The pre-soldered header is a significant quality-of-life improvement that makes the Zero WH more accessible to users who do not have soldering equipment. With a limit of 2 units per customer (to manage supply), the Zero WH occupies a unique position as the most affordable pre-headered Linux SBC on the market, offering genuine Linux computing capability for maker and educational projects at minimal cost. ## Where to Buy - [Adafruit](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F3708&ref=openhardware.directory&product=raspberry-pi-zero-wh&source=md-export) — 16 ## Resources - [product page](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F3708&ref=openhardware.directory&product=raspberry-pi-zero-wh&source=md-export) - [product](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F3708&ref=openhardware.directory&product=raspberry-pi-zero-wh&source=md-export) - [documentation](https://openhardware.directory/r?to=https%3A%2F%2Fwww.raspberrypi.com%2Fproducts%2Fraspberry-pi-zero-w%2F&ref=openhardware.directory&product=raspberry-pi-zero-wh&source=md-export) - [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2Fraspberrypi&ref=openhardware.directory&product=raspberry-pi-zero-wh&source=md-export) ## Tags `raspberry-pi`, `linux`, `wifi`, `bluetooth`, `gpio-headers`, `sbc`, `compact`, `python` ## Images ![Raspberry Pi Zero WH](https://nbg1.your-objectstorage.com/openhardware-directory/entities/raspberry-pi-zero-wh/b36e4edd3736.jpg) ![Raspberry Pi Zero WH](https://nbg1.your-objectstorage.com/openhardware-directory/entities/raspberry-pi-zero-wh/8414efa5f528.jpg) ![Raspberry Pi Zero WH](https://nbg1.your-objectstorage.com/openhardware-directory/entities/raspberry-pi-zero-wh/c08b264e8ee4.jpg) ![Raspberry Pi Zero WH](https://nbg1.your-objectstorage.com/openhardware-directory/entities/raspberry-pi-zero-wh/8b57f4fa841a.jpg) --- [View full device page](https://openhardware.directory/devices/raspberry-pi-zero-wh)