Raspberry Pi Zero W — Ultra‑Compact Wi‑Fi Linux Board

The original Raspberry Pi Zero W packs a 1 GHz processor, 512 MB RAM, and built‑in Wi‑Fi/Bluetooth into a board smaller than a business card. This version ships without a pre‑soldered header, giving you maximum flexibility for ultra‑slim enclosures, custom PCBs, and permanent embedded installations.

Choose the Zero W when you need a low‑cost, low‑power Linux system for IoT nodes, headless tools, or embedded products where physical space and budget matter more than raw CPU performance.

Why designers still use Zero W

• Tiny and budget‑friendly: A complete Linux computer at a fraction of the size and cost of larger Raspberry Pi boards.
• Wireless built‑in: 2.4 GHz Wi‑Fi and Bluetooth handle basic connectivity without extra dongles.
• Header‑less flexibility: Use the board completely flat, solder only the pins you need, or wire directly to the pads.
• Large ecosystem: Compatible with a variety of cases, adapters, images, and software tutorials.

Project ideas and applications

• Network utilities: Pi‑hole, VPN gateways, backup DNS, or lightweight monitoring boxes.
• Hidden dashboards and signage: Mount behind small HDMI screens for status panels and digital signage.
• Custom IoT devices: Build products where the Zero W is permanently glued or screwed into the enclosure.
• Retro handhelds: Pocket‑sized game consoles and emulation devices powered from USB or battery packs.

Starter bundles

• Zero W minimal: Board + 5 V PSU + microSD card + mini HDMI adapter.
• Embedded pack: Add low‑profile right‑angle headers and a slim protective case.
• Maker pack: Zero W + breadboard + jumper wires + basic sensors.

Recommended add‑ons

• Reliable 5 V micro‑USB power supply sized for any USB devices you plan to attach.
• microSD card with Raspberry Pi OS Lite or other tuned distributions.
• Mini HDMI cable and USB OTG adapter for configuration and testing.
• 40‑pin header kit if you need breadboard‑friendly GPIO access.

Technical specifications

Pinout & power notes

• 3.3 V only on GPIO: Never connect 5 V signals directly; protect pins with level shifting when needed.
• Stable power: For Wi‑Fi‑heavy projects or USB devices, choose a robust power supply with enough current.
• Solder options: Solder straight headers, right‑angle headers, or individual wires depending on your project.

What’s in the box

• 1 × Raspberry Pi Zero W board (no headers installed)

FAQ

What’s the difference between Zero W and Zero 2 W?

Zero 2 W features a much faster quad‑core CPU and is better for heavier workloads. Zero W is single‑core but still very capable for light services and ultra‑low‑power builds.

Can I add my own header later?

Yes. You can solder a full 40‑pin header, a low‑profile right‑angle header, or even individual wires directly to the pads.

Is this a good first Raspberry Pi?

It can be, but because of the small connectors and need for extra adapters, many first‑time users find a full‑size Raspberry Pi board a bit easier to start with.