103 lines
3.6 KiB
Markdown
103 lines
3.6 KiB
Markdown
# Frenchdev : My take on a splitted keyboard for dev and french language
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Concept based on
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- [ergodox](https://ergodox-ez.com/)
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- [katy](https://deskthority.net/workshop-f7/katy-keyboard-or-k80cs-key80-contoured-split-t8524.html)
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with the added possibility to connect up to 6 external switches like pedals,
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and somewhat like the katy, not all keys are on the same level for easier reach.
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###Photos
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- [default layout](http://i.imgur.com/r2Nvr4p.png)
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- [editable layout on keyboard layout editor](http://www.keyboard-layout-editor.com/#/gists/4480e3ab8026eb7c710a7e22203ef4aa) (keys placement is NOT precise on this)
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- [the thing when finished](http://imgur.com/a/6FY8v)
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- [concept and cardboard mockup](http://imgur.com/a/R0vvs)
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##Build instructions
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docker run --rm -e keymap=default -e keyboard=frenchdev --rm -v D:/Repositories/qmk:/qmk:rw edasque/qmk_firmware
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##Laser-cuttable file
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There is intentionnaly no hole for the TRRS connector, you are supposed to use a drill for it.
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This way if you don't want to use the pedals you don't have a useless hole. Plus it's cleaner.
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http://qmk.fm/frenchdev/frenchdev_v1_lasercut_template.svg
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##Side stickers
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You can find my original file here : http://qmk.fm/frenchdev/example_printable_stickers.svg
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I used it when training but now I use blanks and the layout is different.
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I still uploaded it because I think it can be a good jumpstart for any temporary stickers on the
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side of keycaps.
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##List of parts
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- I2C mcp23018
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- [teensy 2](https://www.pjrc.com/store/teensy.html)
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- 3 LED, 5mm tall with flat head
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- 3 330 ohm resistor
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- 2 470 ohm resistor
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- 2 TRRS connectors
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- 1 [micro usb breakout board](http://www.ebay.com/itm/-/201387922085?)
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- 88 cherry/gateron switchs
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- 94 4148 diodes
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- 34 R4 keys
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- 14 R3 keys
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- 20 R2 keys
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- 22 R1 keys
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if you fancy adding pedals :
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[these are good enough and cheap](https://www.amazon.fr/gp/product/B00V7WITKI/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1). You also need a RCA connector for each of those to replace the included cable
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If you (or your coworkers) find them too loud you can replace the switch inside them.
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For once we don't really care about what's inside :)
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##Various indications
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The PHYSICAL rows and columns are connected as such :
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on right hand (slave) :
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I2C mcp23018
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.------- --------.
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GND -| 1 VSS \_/ NC 28 |
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| 2 NC A7 27 |- C15
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R5 -| 3 B0 A6 26 |- C14
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R4 -| 4 B1 A5 25 |- C13
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R3 -| 5 B2 A4 24 |- C12
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R2 -| 6 B3 A3 23 |- C11
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R1 -| 7 B4 A2 22 |- C10
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R0 -| 8 B5 A1 21 |- C9
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| 9 B6 A0 20 |- C8
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| 10 B7 INTA 19 |
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VCC -| 11 VDD INTB 18 |
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SCL -| 12 SCL NC 17 |
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SDA -| 13 SDA RST 16 |- VCC
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| 14 NC ADDR 15 |- GND
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`------------------'
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and on left hand (main) :
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TEENSY
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.------------------.
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| GND VCC |
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C7 -| B0 F0 |- R5
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C6 -| B1 F1 |- R4
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C5 -| B2 F4 |- R3
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C4 -| B3 F5 |- R2
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LEDC -| B7 F6 |- R1
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SCL -| D0 F7 |- R0
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SDA -| D1 B6 |- LEDB
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C3 -| D2 B5 |- LEDA
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C2 -| D3 B4 |
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C1 -| C6 D7 |
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C0 -| C7 D6 |- GND
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| D5 D4 |
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| VCC RST |
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| E6 GND |
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`------------------'
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We use pull up resistor for SCL and VDA, see https://github.com/ErgoDox-EZ/docs/blob/master/ErgoDox%20EZ%20Schematic.pdf for example
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the connector is a standard TRRS (jack with audio + mic)
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Diode direction is row to column
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