# Waveshare Pico Quad Expander - 2 x 20 GPIO breakout for Raspberry Pi Pico (WSR-19037)

**URL:** https://aio.lv/en/product--waveshare-wsr-19037--12234931
**Data updated:** 2026-03-29 16:21 (EEST)
**Category:** Laptop, PC & Tablet Accessories
**Manufacturer:** Waveshare
**Manufacturer code:** WSR-19037
**EAN:** 5904422371692
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--waveshare-wsr-19037--12234931

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Waveshare Pico Quad Expander is a GPIO breakout board designed for the Raspberry Pi Pico. It provides two 2×20 (40-pin) GPIO headers to expand access to the Pico’s pins for prototyping, sensor connections and peripheral wiring. Useful for breadboard setups, development, and projects requiring multiple external connections to the Pico.

## Long description

The Waveshare Pico Quad Expander provides expanded GPIO access for the Raspberry Pi Pico with two 2×20 (40-pin) headers that mirror the Pico's full set of GPIO pins. Designed to simplify prototyping and wiring, this breakout board enables easy connection of sensors, actuators and peripherals while keeping the Pico accessible for development tasks. The compact PCB aligns with Pico headers and exposes all signal lines for straightforward integration into breadboard setups, custom rigs or test benches.
Advantages
The Pico Quad Expander offers a straightforward, hardware-level solution to access the Raspberry Pi Pico’s GPIO without soldering directly to the module. By duplicating the Pico pinout on two 2×20 headers, the board reduces cable clutter and provides convenient routing options for multiple external devices. Its pin-for-pin breakout preserves signal integrity and makes it easier to attach jumper wires, ribbon cables or header connectors for iterative development and debugging.
Suitable for
Prototyping and breadboard experiments with Raspberry Pi Pico
Connecting multiple sensors, displays and actuators simultaneously
Development and debugging of Pico-based projects
Educational projects and lab use where repeated wiring changes are needed
Key specifications
Compatibility: Designed for Raspberry Pi Pico form factor and pinout
Header format: Two 2×20 (40-pin) GPIO female/male headers mirroring Pico pins
Signal access: Full breakout of GPIO, power and ground rails for external connections
Mounting: Compact PCB size matching Pico header spacing for stable connection
Connection types: Supports jumper wires, ribbon cables and standard header connectors
How to use
Place the Raspberry Pi Pico onto the expander so the module’s 2×20 pins align with the corresponding headers on the board. Secure the Pico by pressing the headers into place, then route external wiring from sensors, displays or actuators to the duplicated headers. Ensure correct orientation of power and ground lines before applying power, and verify pin assignments in your project code or wiring diagram. The expander can remain connected during programming and serial debugging using the Pico’s USB interface.
Usage recommendations
For reliable operation, connect power and ground first and double-check voltage levels for attached peripherals. Use short, well-organized jumper wires or ribbon cables to minimise noise and accidental disconnections. When working with multiple devices, label wires or use colour-coded cables to keep track of signals. For permanent installations, consider soldered header options or mounting the assembly in a housing to prevent mechanical strain on the pins.

## FAQ

### How much does the Waveshare Pico Quad Expander WSR-19037 cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 18 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 03.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Waveshare products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Waveshare service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12234931/68102779_large.webp