Pico Decker (Quad Expander)

by Pimoroni

Quadruplicate your GPIO pins and attach up to four add-ons to a single Raspberry Pi Pico with our formidable Pico Decker expander board!

Struggling to choose between Pico add-ons? Mix and match up an epic stack of functionality and plug in up to four Pico Packs or Bases at once*, or use the four sets of fully labelled male GPIO pins to easily attach other devices, jumper wires or circuitry - very useful for prototyping. We've also included some little rubber feet to keep everything solid, four M2.5 mounting holes and some particularly whimsical Routemaster bus inspired artwork on the back 🚌

If you're after something a little more compact, we also make a two slot Pico Omnibus.

A Raspberry Pi Pico is not included - click here if you'd like to buy one!

Features

  • One landing area with labelled female headers for attaching to your Pico.
  • Four landing areas with labelled (mirrored) male headers for attaching add-ons.
  • 4x M2.5 mounting holes.
  • 4x rubber feet
  • Compatible with Raspberry Pi Pico.
  • 99% assembled - just need to stick on the feet!
  • No soldering required.
  • Dimensions: approx 148mm x 52mm x 13mm (L x W x H, including feet and headers)

Notes

  • * You'll need to check for data pin conflicts when using multiple Pico add-ons - the shop page for the add-on in question will list what pins it uses.
  • * If you need to plumb a Pico Base into Pico Decker, you'll probably want to do it via some male-female jumper jerky to keep things manageable and to stop everything from being quite so upside-down!
  • The Pico Packs shown in the photo are not included.

About Raspberry Pi Pico

Raspberry Pi Pico is a flexible, low cost microcontroller development board from the folks at Raspberry Pi, based on their very own chip - the RP2040. It's easily programmable over USB with C/C++ or MicroPython, and ideal for using in all sorts of physical computing projects, devices and inventions - we're so excited to see what you make with it!

We've called our Pico-sized add-ons packs, as they're designed to attach to the back of your Pico as if it were wearing a very stylish back pack (or a miniature jet pack, if you prefer). We've also got Pico bases (larger add-on boards with a space to mount your Pico on top) and some other boards that let you do interesting hackerly things like using multiple packs at once - click here to view them all!

Your Pico will need to have male headers soldered to it (with the pins pointing downwards) to attach to our add-on boards.

17 customer reviews

9 months ago
In addition, it would be helpful to have an addon board providing access to the default ports via JST 2mm to RP2040 I2C0, I2C1, UART0 RX/TX, UART1 RX/TX and SPI0, SPI1 using the pins around GP12-15 and GP16 - 19.
by Klaus about Pico Decker (Quad Expander) via REVIEWS.io
3 years ago
I was disappointed when I received my Waveshare Pico-ResTouch-LCD-3.5 and realised that it would tie up all my GPIO pins unless I used a swathe of cables. The Pico Decker has solved this problem admirably. Just attach the LCD display furthest from the Pico and you can use the rest of the GPIO pins. The display does interfere with pins 1-20 on the next door position which is why I bought the Quad version. What would be a nice addition is if the expander came with little plastic attachments like the end of a female jumper wire that you could put over the pins to remind you that that particular pin was already being used by another device.
by Charlotte about Pico Decker (Quad Expander) via REVIEWS.io
4 years ago
I had the Pico Omnibus, but I've also got a large selection of Pico packs. This board makes adding quite a range of functionality to the Pico really simple and quick. You can also use it to add a couple of packs whilst still having all of the GPIO pins free for debugging, or adding your own modules / jumpers to. Recommended.
by DAVID about Pico Decker (Quad Expander) via REVIEWS.io
4 years ago
Pretty handy, some ideas for improvements. Adding a reset button (or slide switch so the pico can be held in reset) to a v2 board would be handy. An extra wide slot for a complementary "wider pico proto" would be nice.
by Anonymous about Pico Decker (Quad Expander) via REVIEWS.io
4 years ago
Simple inert bus making all Pico pins available across the 4 bay. Mechanically very need, well labeled and 100% reliable - nice product all round.
by J about Pico Decker (Quad Expander) via REVIEWS.io

2 user photos