Many changes for v2
* Send left and right ctrl, VBand's secret keys for their adapter * Flash lights twice at bootup * LED reflects whether keyboard mode is enabled * MIDI receive: if you release key C0, we stop sending keyboard events * Get rid of the "keyboard mode" pin * Add Makefile so I don't have to use Arduino IDE
This commit is contained in:
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build/
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@ -0,0 +1,39 @@
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FQBN = Seeeduino:samd:seeed_XIAO_m0
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UF2_MOUNT = /mnt/chromeos/removable/Arduino
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ARDUINO_DIR = /app/Arduino
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BUILDER = flatpak run --command ${ARDUINO_DIR}/arduino-builder cc.arduino.arduinoide
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default: build/vail-adapter.ino.uf2
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install: build/vail-adapter.ino.uf2
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./install.sh $< $(UF2_MOUNT)
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# uf2conv.py is covered by an MIT license.
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build/uf2conv.py: build/uf2families.json
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mkdir -p build
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curl -L https://raw.githubusercontent.com/microsoft/uf2/master/utils/$(@F) > $@
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chmod +x $@
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build/uf2families.json:
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mkdir -p build
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curl -L https://raw.githubusercontent.com/microsoft/uf2/master/utils/$(@F) > $@
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%.uf2: %.bin build/uf2conv.py
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build/uf2conv.py -b 0x2000 -c -o $@ $<
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build/%.bin: % *.cpp *.h
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arduino-builder \
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-build-cache ~/.cache/arduino \
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-build-path build \
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-core-api-version 10813 \
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-fqbn $(FQBN) \
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-hardware ~/.arduino15/packages \
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-tools $(ARDUINO_DIR)/tools-builder \
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-tools ~/.arduino15/packages \
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-hardware $(ARDUINO_DIR)/hardware \
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-hardware ~/.arduino15/packages \
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-built-in-libraries $(ARDUINO_DIR)/libraries \
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-libraries ~/Arduino/libraries \
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-compile \
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$<
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upload: vail-adapter.ino
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arduino --upload --board $(FQBN) $<
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@ -1,32 +1,33 @@
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: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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---
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Author: neale
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Email: neale@woozle.org
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License: MIT
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---
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= Project: USB Morse Adapter
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# Project: USB Morse Adapter
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image:https://lh3.googleusercontent.com/pw/ACtC-3d9xbLxL23QeLm-3gy3-Yt0VHE3IlQ-qyMDqTfdF6Bo7fHkkokACdIs68pmXevu14VzrrCeKj1JmRUiekUNiZe9J9rYIh_pTagvCbKSzpY8Ynp1m6cF4G_jTvtiU5eRtoNCsmU5OLy2SR9kYcCDYSt-AA=s1471-no["Vail adapter, assembled and connected",width=300,https://lh3.googleusercontent.com/pw/ACtC-3d9xbLxL23QeLm-3gy3-Yt0VHE3IlQ-qyMDqTfdF6Bo7fHkkokACdIs68pmXevu14VzrrCeKj1JmRUiekUNiZe9J9rYIh_pTagvCbKSzpY8Ynp1m6cF4G_jTvtiU5eRtoNCsmU5OLy2SR9kYcCDYSt-AA=s1471-no]
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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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It is fully compatible with [VBand](https://hamradio.solutions/vband/)
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and anything else that uses the VBand adapter.
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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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It will also work with [VBand](https://hamradio.solutions/vband/),
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in MIDI+Keyboard mode.
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This project requires an Arduino that can send USB.
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The following should work:
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=== Verified Working
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### Verified Working
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* Seeeduino Xiao
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* Seeeduino Xiao **(recommended)**
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* Arduino Micro
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* KeeYees Pro Micro
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=== Unverified but should work
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### Unverified but should work
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Any USB-capable Arduino should be fine, including:
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@ -39,28 +40,30 @@ Any USB-capable Arduino should be fine, including:
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You might even be able to get a Digispark (attiny85) to work,
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but this may require a little hacking. Send me a patch, if you do!
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== Step 1: Installation
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## Step 1: Installation
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If Arduino Create still exists when you're reading this,
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you might be able to load up
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https://create.arduino.cc/editor/neale/f94bb765-47bd-4bc4-9cbf-b978f7124bdc[my project]
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and program your board without too much fuss.
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#### The Easy Way
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Otherwise you are going to need to install the MidiUSB and Keyboard libraries.
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I plan to begin releasing precompiled images for the Seeeduino XIAO.
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You should be able to
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[enter bootloader mode](https://wiki.seeedstudio.com/Seeeduino-XIAO/#enter-bootloader-mode)
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and just drag the `.uf2` file onto the new drive it provides,
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then you're done.
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#### The Other Way
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Install the MidiUSB and Keyboard libraries.
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These are highly popular libraries,
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and there is much better documentation elsewhere on the Internet.
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The code should then build in the Arduino IDE.
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## Step 2: Assmble the circuit
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== Step 2: Assmble the circuit
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### For the impatient:
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=== For the impatient:
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[Photos of assembled circuit](https://github.com/nealey/vail-adapter/wiki)
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https://github.com/nealey/vail-adapter/wiki[Photos of assembled circuit]
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Remember to jump pin 9 to ground for Firefox,
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or VBand.
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=== For the inquisitive:
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### For the inquisitive:
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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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@ -70,22 +73,21 @@ 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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The Vail adapter boots into a mode that sends both keyboard events
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and MIDI messages.
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If it receives a MIDI key release event
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on channel 0
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for note C0,
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it will disable keyboard events.
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=== Decide what browser you're going to use
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Vail sends this "disable keyboard" MIDI event, so as soon as you
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load up Vail, the keyboard events are disabled, and your adapter
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will no longer interfere with your typing.
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If your browser doesn't support MIDI,
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the disable command can't be sent,
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and it keeps on sending keystrokes.
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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 brackets 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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### 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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@ -109,21 +111,15 @@ 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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If you change from an iambic key to a straight key,
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you'll have to reset the adapter by unplugging it from the computer.
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== Step 3: Load the code
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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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## 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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@ -136,8 +132,16 @@ 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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## Step 5: Debugging
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=== License
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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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# License
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This project is released under an MIT License.
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@ -162,12 +166,12 @@ 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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# 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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# BOM
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In addition to a key, some hookup wires, and a USB cable,
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you only need a USB-capable Arduino: see above.
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@ -176,15 +180,6 @@ Since I don't know what might try to parse this section,
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I'm calling for an Arduino Micro. But, really, many options
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will work fine.
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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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| ID | Part name | Part number | Quantity |
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| --- | ------- | ------ | ------ |
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| A1 | Seeeduino XIAO | 102010328 | 1 |
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#! /bin/sh
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src=$1
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dst=$2
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info=$dst/INFO_UF2.txt
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echo -n "Waiting for $info to appear..."
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while ! [ -f $info ]; do
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echo -n "."
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sleep 1
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done
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echo "👍"
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cp $src $dst
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echo "Installed!"
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@ -8,30 +8,27 @@
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#include "bounce2.h"
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#ifdef ARDUINO_SEEED_XIAO_M0
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#define DIT_PIN 2
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#define DAH_PIN 1
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#define KEY_PIN 0
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# define DIT_PIN 2
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# define DAH_PIN 1
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# define KEY_PIN 0
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#else
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#define DIT_PIN 12
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#define DAH_PIN 11
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#define KEY_PIN 10
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# define DIT_PIN 12
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# define DAH_PIN 11
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# define KEY_PIN 10
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#endif
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#define KBD_PIN 9
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#define STRAIGHT_KEY ','
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#define DIT_KEY '['
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#define DAH_KEY ']'
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#define DIT_KEY KEY_LEFT_CTRL
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#define DAH_KEY KEY_RIGHT_CTRL
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bool iambic = true;
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Bounce kbd = Bounce();
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bool keyboard = true;
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Bounce dit = Bounce();
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Bounce dah = Bounce();
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Bounce key = Bounce();
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void setup() {
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pinMode(LED_BUILTIN, OUTPUT);
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kbd.attach(KBD_PIN, INPUT_PULLUP);
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dit.attach(DIT_PIN, INPUT_PULLUP);
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dah.attach(DAH_PIN, INPUT_PULLUP);
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key.attach(KEY_PIN, INPUT_PULLUP);
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iambic = true;
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}
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digitalWrite(LED_BUILTIN, !iambic);
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// Blink 4 times
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for (int i = 0; i < 8; i += 1) {
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digitalWrite(LED_BUILTIN, i % 2);
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delay(250);
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}
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}
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void midiKey(bool down, uint8_t key) {
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@ -59,11 +61,20 @@ void midiKey(bool down, uint8_t key) {
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MidiUSB.flush();
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}
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void loop() {
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bool keyboard;
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void midiProbe() {
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midiEventPacket_t event = MidiUSB.read();
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if (event.byte1 == 0x80) {
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// Key release, channel 0
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if (event.byte2 == 0x00) {
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// C0 note
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keyboard = false;
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}
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}
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}
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kbd.update();
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keyboard = !kbd.read();
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void loop() {
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midiProbe();
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digitalWrite(LED_BUILTIN, !keyboard);
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// Monitor straight key pin
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if (key.update()) {
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