# Homefruit FeatherWing Tester
## Overview
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!**
## Parts
Primary:
### FeatherWing Proto - Prototyping Add-on For All Feather Boards
[FeatherWing Proto - Prototyping Add-on For All Feather Boards](https://www.adafruit.com/product/2884)
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 [Feather Stacking Headers](https://www.adafruit.com/products/2830) or
In Stock
[Buy Now](https://www.adafruit.com/product/2884)
[Related Guides to the Product](https://learn.adafruit.com/products/2884/guides)
### FeatherWing Doubler - Prototyping Add-on For All Feather Boards
[FeatherWing Doubler - Prototyping Add-on For All Feather Boards](https://www.adafruit.com/product/2890)
This is the **FeatherWing Doubler** - a prototyping add-on and more for all Feather boards. This is similar to our [FeatherWing Proto](https://www.adafruit.com/products/2884) except there are two! The magic of the Doubler comes when stacking a Feather and another...
In Stock
[Buy Now](https://www.adafruit.com/product/2890)
[Related Guides to the Product](https://learn.adafruit.com/products/2890/guides)
### Toggle Clamp - Small Flip-down Style
[Toggle Clamp - Small Flip-down Style](https://www.adafruit.com/product/2459)
\*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 connect and test boards without any soldering, but you have to somehow get that PCB aligned right and evenly pressed...
In Stock
[Buy Now](https://www.adafruit.com/product/2459)
[Related Guides to the Product](https://learn.adafruit.com/products/2459/guides)
### Pogo Pins "Spear Head" (10 pack)
[Pogo Pins "Spear Head" (10 pack)](https://www.adafruit.com/product/394)
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 testing jigs but they're handy also if say you want to JTAG program a board that you cant solder headers to -...
In Stock
[Buy Now](https://www.adafruit.com/product/394)
[Related Guides to the Product](https://learn.adafruit.com/products/394/guides)
### Black Nylon Machine Screw and Stand-off Set – M2.5 Thread
[Black Nylon Machine Screw and Stand-off Set – M2.5 Thread](https://www.adafruit.com/product/3299)
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 tendencies for days on end! M2.5 size screws fit almost all of the Adafruit breakout/dev board mounting holes...
In Stock
[Buy Now](https://www.adafruit.com/product/3299)
[Related Guides to the Product](https://learn.adafruit.com/products/3299/guides)
### USB Power Only Cable with Switch - A/MicroB
[USB Power Only Cable with Switch - A/MicroB](https://www.adafruit.com/product/2379)
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 about perfect for charging your Raspberry Pi - either Model B, A+, B+, or Pi 2. Just hook up the...
In Stock
[Buy Now](https://www.adafruit.com/product/2379)
[Related Guides to the Product](https://learn.adafruit.com/products/2379/guides)
### Part: Little Rubber Bumper Feet
quantity: 1
Pack of 4
[Little Rubber Bumper Feet](https://www.adafruit.com/product/550)
### Part: Tapered Heat-Set Inserts for Plastic
quantity: 1
Brass, M4 x 0.70 mm Thread Size, 4.700 mm Installed Length (Pack of 100)
[Tapered Heat-Set Inserts for Plastic](https://www.mcmaster.com/94180A351/)
### Part: Zinc-Aluminum-Coated Alloy Steel Socket Head Screw
quantity: 1
M4 x 0.7 mm Thread, 8 mm Long (pack of 50)
[Zinc-Aluminum-Coated Alloy Steel Socket Head Screw](https://www.mcmaster.com/91274A115/)
- [Next Page](https://learn.adafruit.com/homefruit-featherwing-tester/3d-printing-and-finishing.md)
## Featured Products
### FeatherWing Proto - Prototyping Add-on For All Feather Boards
[FeatherWing Proto - Prototyping Add-on For All Feather Boards](https://www.adafruit.com/product/2884)
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 [Feather Stacking Headers](https://www.adafruit.com/products/2830) or
In Stock
[Buy Now](https://www.adafruit.com/product/2884)
[Related Guides to the Product](https://learn.adafruit.com/products/2884/guides)
### FeatherWing Doubler - Prototyping Add-on For All Feather Boards
[FeatherWing Doubler - Prototyping Add-on For All Feather Boards](https://www.adafruit.com/product/2890)
This is the **FeatherWing Doubler** - a prototyping add-on and more for all Feather boards. This is similar to our [FeatherWing Proto](https://www.adafruit.com/products/2884) except there are two! The magic of the Doubler comes when stacking a Feather and another...
In Stock
[Buy Now](https://www.adafruit.com/product/2890)
[Related Guides to the Product](https://learn.adafruit.com/products/2890/guides)
### Toggle Clamp - Small Flip-down Style
[Toggle Clamp - Small Flip-down Style](https://www.adafruit.com/product/2459)
\*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 connect and test boards without any soldering, but you have to somehow get that PCB aligned right and evenly pressed...
In Stock
[Buy Now](https://www.adafruit.com/product/2459)
[Related Guides to the Product](https://learn.adafruit.com/products/2459/guides)
### Pogo Pins "Spear Head" (10 pack)
[Pogo Pins "Spear Head" (10 pack)](https://www.adafruit.com/product/394)
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 testing jigs but they're handy also if say you want to JTAG program a board that you cant solder headers to -...
In Stock
[Buy Now](https://www.adafruit.com/product/394)
[Related Guides to the Product](https://learn.adafruit.com/products/394/guides)
### Black Nylon Machine Screw and Stand-off Set – M2.5 Thread
[Black Nylon Machine Screw and Stand-off Set – M2.5 Thread](https://www.adafruit.com/product/3299)
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 tendencies for days on end! M2.5 size screws fit almost all of the Adafruit breakout/dev board mounting holes...
In Stock
[Buy Now](https://www.adafruit.com/product/3299)
[Related Guides to the Product](https://learn.adafruit.com/products/3299/guides)
### White Nylon Machine Screw and Stand-off Set – M2.5 Thread
[White Nylon Machine Screw and Stand-off Set – M2.5 Thread](https://www.adafruit.com/product/3658)
Totaling 420 pieces, this **White Nylon M2.5 Screw Set** is a must-have smörgåsbord for your workstation. You'll have more than enough screws, nuts, and hex standoffs to construct your maker projects for days on end! M2.5 screws fit nearly...
In Stock
[Buy Now](https://www.adafruit.com/product/3658)
[Related Guides to the Product](https://learn.adafruit.com/products/3658/guides)
### Little Rubber Bumper Feet - Pack of 4
[Little Rubber Bumper Feet - Pack of 4](https://www.adafruit.com/product/550)
Keep your electronics from going barefoot, give them little rubber feet! These small sticky bumpers are our favorite accessory for any electronic kit or device. They are sticky, but not impossible to remove. They're small enough to fit onto any board, and have just enough height to give...
In Stock
[Buy Now](https://www.adafruit.com/product/550)
[Related Guides to the Product](https://learn.adafruit.com/products/550/guides)
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