# Raspberry Pi Zero W > Ultra-compact single-board computer with BCM2835 ARM11 at 1 GHz, 512MB RAM, built-in 802.11b/g/n WiFi (BCM43143), Bluetooth 4.1 LE, mini HDMI, microSD, camera connector, and 40-pin GPIO header in a 65mm × 30mm footprint. ## Quick Facts - **Brand:** Adafruit - **Board Type:** sbc - **Price:** ~$15 - **Product Readiness:** developer - **CPU:** Broadcom BCM2835 ARM11 @ 1 GHz - **CPU Architecture:** ARM11 - **CPU Cores:** 1 - **RAM:** 512MB - **Flash:** none - **Power:** 5V via Micro-USB - **Operating Voltage:** 3.3V - **Dimensions:** 65 × 30.5 × 5 mm - **Weight:** 9.3g - **Antenna:** Built-in PCB antenna - **SD Card:** microSD (pre-flashed) ## Connectivity - **Wifi:** 802.11 b/g/n - **Bluetooth:** Bluetooth 4.1 ## Open Source - **Firmware:** No - **Schematics:** Yes - **PCB Layout:** No ## Compatible Firmware linux, raspberry-pi-os, circuitpython ## Use Cases - embedded-linux - iot - raspberry-pi-zero-replacement - ai-vision-camera - baby-monitor - lightweight-web-server ## Components - **BCM2835** (mcu): Broadcom BCM2835 ARM11 processor at 1GHz with VideoCore IV GPU, 512MB LPDDR2 RAM. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdatasheets.raspberrypi.com%2Fbcm2835%2Fbcm2835-peripherals.pdf&ref=openhardware.directory&product=raspberry-pi-zero-w&source=md-export) - **BCM43143** (wifi-module): Broadcom BCM43143 802.11b/g/n WiFi and Bluetooth 4.1 LE combined module. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdatasheets.raspberrypi.com%2Fpizero%2Fraspberry-pi-zero-w-reduced-schematics.pdf&ref=openhardware.directory&product=raspberry-pi-zero-w&source=md-export) ## Protocols - **SPI**: MOSI: GPIO10, MISO: GPIO9, SCK: GPIO11, CE0: GPIO8, CE1: GPIO7 - **I2C**: SDA: GPIO2, SCL: GPIO3 - **UART**: TX: GPIO14, RX: GPIO15 - **802.11 b/g/n**: - **Bluetooth 4.1**: ## GPIO Map | Pin | Name | Type | Functions | |-----|------|------|-----------| | GPIO14 | TXD — UART Transmit (physical pin 8) | UART | digital-input, digital-output | | GPIO15 | RXD — UART Receive (physical pin 10) | UART | digital-input, digital-output | | GPIO2 | SDA — I2C Data (physical pin 3) | I2C | digital-input, digital-output | | GPIO3 | SCL — I2C Clock (physical pin 5) | I2C | digital-input, digital-output | | GPIO10 | MOSI — SPI MOSI (physical pin 19) | SPI | digital-input, digital-output | | GPIO9 | MISO — SPI MISO (physical pin 21) | SPI | digital-input, digital-output | | GPIO11 | SCLK — SPI Clock (physical pin 23) | SPI | digital-input, digital-output | | GPIO8 | CE0 — SPI Chip Enable 0 (physical pin 24) | SPI | digital-input, digital-output | | GPIO7 | CE1 — SPI Chip Enable 1 (physical pin 26) | SPI | digital-input, digital-output | | GPIO17 | GPIO17 — General Purpose I/O (physical pin 11) | — | digital-input, digital-output | | GPIO18 | GPIO18 — General Purpose / PWM (physical pin 12) | — | digital-input, digital-output, pwm | | GPIO22 | GPIO22 — General Purpose I/O (physical pin 15) | — | digital-input, digital-output | | GPIO23 | GPIO23 — General Purpose I/O (physical pin 16) | — | digital-input, digital-output | | GPIO24 | GPIO24 — General Purpose I/O (physical pin 18) | — | digital-input, digital-output | | GPIO25 | GPIO25 — General Purpose I/O (physical pin 22) | — | digital-input, digital-output | | GPIO27 | GPIO27 — General Purpose I/O (physical pin 13) | — | digital-input, digital-output | ## Description ## Overview The Raspberry Pi Zero W is a credit-card-sized computer that packs the full Linux experience into a board measuring just 65 × 30 mm and weighing 9.3 grams. Built around the Broadcom BCM2835 ARM11 processor at 1 GHz with 512MB of RAM, it runs the full Raspberry Pi OS (Debian-based) and supports the complete Pi software ecosystem. The "W" designation marks the key addition: an onboard BCM43143 chip providing 802.11b/g/n WiFi and Bluetooth 4.1 Low Energy. This enables wireless connectivity without any USB adapter, making truly wireless embedded Linux projects practical. A camera serial interface (CSI) connector supports the Pi Camera module, enabling streaming and computer vision applications. A 40-pin GPIO header footprint (unpopulated by default) provides access to GPIO, I2C, SPI, UART, and PWM — compatible with the full range of Pi HATs and expansion boards. Mini HDMI supports 1080p video output. Two micro-USB ports handle power and USB OTG (for connecting keyboards, USB hubs, etc.). The Zero W runs Raspberry Pi OS and supports Python, Node.js, and any software available for ARM Linux. It is popular for embedded Linux applications that require WiFi connectivity, camera support, or full Linux capabilities in an extremely compact and low-cost package. ## Where to Buy - [Adafruit](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F3400&ref=openhardware.directory&product=raspberry-pi-zero-w&source=md-export) — 15.00 ## Resources - [product](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F3400&ref=openhardware.directory&product=raspberry-pi-zero-w&source=md-export) - [wiki](https://openhardware.directory/r?to=https%3A%2F%2Fwww.raspberrypi.com%2Fproducts%2Fraspberry-pi-zero-w%2F&ref=openhardware.directory&product=raspberry-pi-zero-w&source=md-export) - [datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdatasheets.raspberrypi.com%2Fbcm2835%2Fbcm2835-peripherals.pdf&ref=openhardware.directory&product=raspberry-pi-zero-w&source=md-export) - [schematics](https://openhardware.directory/r?to=https%3A%2F%2Fdatasheets.raspberrypi.com%2Fpizero%2Fraspberry-pi-zero-w-reduced-schematics.pdf&ref=openhardware.directory&product=raspberry-pi-zero-w&source=md-export) ## Tags `raspberry-pi`, `zero-w`, `linux-sbc`, `wifi`, `bluetooth`, `arm11`, `camera`, `gpio` ## Images ![Raspberry Pi Zero W](https://nbg1.your-objectstorage.com/openhardware-directory/entities/raspberry-pi-zero-w/f0118ae5d262.jpg) --- [View full device page](https://openhardware.directory/devices/raspberry-pi-zero-w)