Teensy XBee Adapter Hookup Guide

Contributors: MTaylor

Hardware Overview

Apart from mechanically connecting the The Teensy and XBee, the adapter has a some features to help you get the most from the hardware. Here's what each section does.

1. Teensy 3.2/3.1 (and LC) Footprint - Connect the Teensy here. Make sure to add headers next to the shorter row of pins next to the Teensy's reset button to power the XBee by default.
2. UART1/S-UART Switch - Select which serial pins are connected to the XBee (pins 0/1 for the hardware UART, pins 20/21 for the software UART).
3. XBee Socket - Plug the XBee in here matching silkscreen shape.
4. VIN/EXT Jumper Pad - Short to source Teensy power from the EXT_IN pins.
5. XBee Status LEDs - Shows data movement, signal strength, and digital IO pin 5 (XBee signals).
6. Spare Ground Connections - My gift to you! More ground pins for reference.
7. TNSY/EXT Jumper Pads - Selects the source of power for the XBee. The default is connected to the Teensy's on-board voltage regulator. When providing external power from the EXT_PWR (3.3V) pins, move the solder jumper to the EXT_IN side.
8. Power LED - Shows if XBee is getting power.
9. EXT_PWR (3.3V) - Supply regulated 3.3v here only when necessary.
10. XBee Reset Switch - Resets the XBee.

Don't forget to check out the Getting Started with the Teensy tutorial for information on attaching the Teensy to an adapter.