154 lines
4.7 KiB
Plaintext
154 lines
4.7 KiB
Plaintext
:Author: neale
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:Email: neale@woozle.org
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:Date: 2020-May-3
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:Revision: 1
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:License: MIT
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= Project: USB Morse Adapter
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This translates Morse key inputs into USB events,
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either MIDI or MIDI+Keyboard,
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so you can use a computer.
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I use this with an Internet morse code repeater I wrote,
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available at https://vail.woozle.org/.
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This project requires an Arduino that can send USB.
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I've only used the Micro,
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although I have no doubt the Leonardo will work too,
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as I've used Leonardos for similar projects.
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== Step 1: Installation
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This needs the MidiUSB and Keyboard libraries.
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Installing those is documented all over the Internet.
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I'm using https://create.arduino.cc/ so this is all magic for me.
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== Step 2: Assmble the circuit
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Morse code keyers are very simple devices,
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they just connect two wires together.
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You could use a button if you wanted to,
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or even touch wires together.
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The only real complication here is that some browsers
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need to get keyboard events instead of musical instrument events.
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=== Decide what browser you're going to use
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Firefox needs a jumper between pin 9 and ground.
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Just take a wire, and connect pin 9 directly to ground.
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This puts the Arduino into "keyboard mode",
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where it sends a comma for straight key,
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and period and slash for iambic.
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If you don't connect pin 9 to ground,
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the Arudino only sends MIDI (Musical Instrument Digital Interface)
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events, so it looks like you hooked a piano up.
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This works great in Chrome,
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and lets you switch to other windows while still keying into vail.
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=== Wire up your input device
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Hook a straight key into ground on one side,
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pin 10 on the other.
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It's okay to leave pin 10 disconnected if you don't have a straight key.
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Hook an iambic paddle in ground in the middle,
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pins 11 and 12 on the outside posts.
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It's okay to leave pins 11 and 12 disconnected if you don't have a paddle.
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=== Using a headphone jack
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If you prefer, you can wire a headphone jack up to GND, 11, and 12.
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GND should be the sleeve, 11 the ring, and 12 the tip.
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o --- 12
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|_| --- 11
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| | --- GND
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Make sure any straight key you plug in has a TS adapter (mono plug):
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this will short pin 11 to ground and signal to the Arduino to
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go into straight key mode.
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You need to reset the Arduino if you change from an iambic to straight key.
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On the micro, reset is a white button.
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If you plug in your straight key and it looks like DAH is being held down,
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it means you need to switch the connections to pins 11 and 12.
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If you plug in your straight key and it looks like DIT is being held down,
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it means you need to reset the Arduino to make it detect the key type again.
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== Step 3: Load the code
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Upload the code contained in this sketch on to your board.
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== Step 4: Test it out
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Make sure it's plugged in to your computer's USB port.
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If you connected pin 9 to ground,
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Open anything where you can type,
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type in "hello", and hit the straight key.
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You should see a comma after your hello.
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Now you can open https://vail.woozle.org/,
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click the "KEY" button once to let the browser know it's okay to make sound,
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and you should be able to wail away on your new USB keyer.
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=== License
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This project is released under an MIT License.
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Copyright © 2020 Neale Pickett
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Copyright © 2013 thomasfredericks
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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The software is provided "as is", without warranty of any kind, express or
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implied, including but not limited to the warranties of merchantability, fitness
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for a particular purpose, and noninfringement. In no event shall the authors or
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copyright holders be liable for any claim, damages, or other liability, whether
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in an action of contract, tort or otherwise, arising from, out of, or in
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connection with the software or the use or other dealings in the software.
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=== Contributing
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To contribute to this project please contact neale@woozle.org
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https://id.arduino.cc/neale
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=== BOM
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In addition to a key, some hookup wires, and a USB cable,
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you only need an Arduino.
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|===
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| ID | Part name | Part number | Quantity
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| A1 | Arduino Micro | ABX00053 | 1
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|===
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=== Help
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This document is written in the _AsciiDoc_ format, a markup language to describe documents.
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If you need help you can search the http://www.methods.co.nz/asciidoc[AsciiDoc homepage]
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or consult the http://powerman.name/doc/asciidoc[AsciiDoc cheatsheet]
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