vail-adapter

Firmware for USB morse code key adapter
git clone https://git.woozle.org/neale/vail-adapter.git

vail-adapter / doc
Nehem11e  ·  2025-08-04

easy-install.md

 1# Easy Installation
 2
 31. Get a Seeeduino XIAO SAMD21
 42. Download the most recent XIAO SAMD21 firmware from
 5[releases](https://github.com/nealey/vail-adapter/releases)
 63. [Enter bootloader mode](https://wiki.seeedstudio.com/Seeeduino-XIAO/#enter-bootloader-mode)
 74. Copy the firmware onto the XIAO SAMD21
 8
 9[Wideo walkthrough of firmware upload](https://www.youtube.com/watch?v=IgOdkUe5SMY) (3:07)
10
11If you would like to use a different microcontroller,
12see the [advanced install instructions](advanced-install.md).
13
14# Wiring
15
16![XIAO Pinout](https://files.seeedstudio.com/wiki/Seeeduino-XIAO/img/Seeeduino-XIAO-pinout-1.jpg)
17
18* GND: Ground (usually in the middle of the paddle)
19* Pin D2: Dit (usually left paddle)
20* Pin D1: Dah (usually right paddle)
21
22If you'd like to wire up a TRS (headphone) jack;
23or take advantage of some of the adapters other features,
24such as dedicated straight key, sidetone generation,
25or capacative touch,
26see the [advanced install instructions](advanced-install.md).
27
28There is a Vail Discord run by Vail user K6JSC.
29https://discord.gg/GBzj8cBat7