Adafruit
Teensy 3.x Feather Adapter
The Teensy 3.x Feather Adapter rearranges the pins of a Teensy 3.x board to match the Adafruit Feather form factor and pinout. This allows the Teensy to work...
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The Teensy 3.x Feather Adapter rearranges the pins of a Teensy 3.x board to match the Adafruit Feather form factor and pinout. This allows the Teensy to work with the full range of FeatherWing add-ons — motor drivers, GPS modules, LED matrices, OLEDs, and more.
The adapter also includes a built-in 500 mA LiPo charger that charges automatically over USB and switches to battery power when USB is disconnected. A 100 kΩ resistor divider on pin A7 enables battery voltage monitoring.
Key Features
- Feather Form Factor – Adapts Teensy 3.x pinout to match Feather/FeatherWing ecosystem
- Built-In LiPo Charger – 500 mA charging via USB with automatic switchover
- Battery Monitoring – 100 kΩ voltage divider on A7
- FeatherWing Compatible – Drop-in support for FeatherWing add-ons
Package Contents
- 1× Assembled Teensy 3.x Feather Adapter
- 1× Shorty header set (for attaching Teensy 3.x)
- 1× Standard header set
- 1× Stacking header set
Jargon buster
Plain-language definitions for the technical terms used above.
- FeatherWing
- A FeatherWing is an add-on board made to plug into the Feather microcontroller board layout. Knowing a product is a FeatherWing helps you check whether it will physically and electrically fit your Feather-style mainboard.
- GPS
- The US satellite navigation system used by GNSS receivers to calculate position and time. Support for GPS is important because it is widely available and often used together with other constellations for more reliable positioning.
- Headers
- Rows of connector contacts on a fixed pitch (commonly 2.54 mm) used to link a board to a breadboard, jumper wires, or another board. They come as male pin headers and female socket headers; when a module ships with pre-soldered headers it can be used straight away, whereas bare pads require soldering the pins yourself.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- LiPo
- A LiPo (lithium polymer) battery is a rechargeable lithium battery widely used in portable projects because it is light and compact. LiPo cells need correct charging circuitry and careful handling to stay safe, so equipment that supports LiPo generally includes charging or protection hardware suited to that battery type.
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