Every Adafruit board needs a tester to ensure that the hardware works before it's placed in the Adafruit store. These testers generally consist of a board with a pre-programmed microcontroller to administer the test, and an array of spring loaded contacts, often called "pogo pins", to mate with the device under test.

Are you doing your own small scale manufacturing?  Do you just want to get your code working before soldering headers on that FeatherWing?  Either way, this guide is for you.

In this guide, you'll learn how to make your own tester for Feather/FeatherWing form factor boards.

Be prepared to heat up your 3D printer and your soldering iron for this project!


This project requires 3× 10-packs of the "Spear Head" pogo pins, since Feathers have 28 pins!
Prototyping feather wing PCB with loose headers
A Feather board without ambition is a Feather board without FeatherWings!This is the FeatherWing Proto - a prototyping add-on for all Feather boards. Using our...
Out of Stock
Double prototyping feather wing PCB with socket headers installed
This is the FeatherWing Doubler - a prototyping add-on and more for all Feather boards. This is similar to our
In Stock
Video of a white hand manipulating a toggle clamp to press a blue rectangular board.
*Ka-thunk* Pin down that PCB with our Toggle Clamp, a sturdy and reliable way to quickly press and release with precision! A pogo-pin bed is a great way to...
In Stock
Angled shot of a single Pogo Pin - spear head.
Pogo pins are little spring-loaded contacts, very handy for making jigs, or making momentary (but electrically solid) contacts. We use them by the dozen for making programming and...
In Stock
Black Nylon Screw and Stand-off Set with M2.5 Threads, kit box
Totaling 380 pieces, this M2.5 Screw Set is a must-have for your workstation. You'll have enough screws, nuts, and hex standoffs to fuel your maker...
In Stock
USB Cable with Type A and Micro B ends and switch in center
ON...off...ON...off...ON...off...ON...off...WE CAN'T STOP CLICKING THIS ON-OFF SWITCH! It has such a satisfying click and it works so well.  Plus, it's just...
In Stock
1 x Tapered Heat-Set Inserts for Plastic
Brass, M4 x 0.70 mm Thread Size, 4.700 mm Installed Length (Pack of 100)
1 x Zinc-Aluminum-Coated Alloy Steel Socket Head Screw
M4 x 0.7 mm Thread, 8 mm Long (pack of 50)

This guide was first published on Dec 11, 2020. It was last updated on Mar 08, 2024.

This page (Overview) was last updated on Mar 08, 2024.

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