mirror of
https://github.com/Keychron/qmk_firmware.git
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61 lines
2.5 KiB
Markdown
61 lines
2.5 KiB
Markdown
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# Bluetreus - a conversion of an Atreus to use a Bluetooth microcontroller
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I have created a keymap for this with Bluetooth control on layer 2 so that you
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can switch the keyboard between auto, USB only, and Bluetooth only. I'm
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working on fixing turning on auto by default, but have still not succeeded.
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To build it and flash it, do:
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```
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make atreus/feather:clash:flash
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```
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## Wiring it up
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Physically, SDA to pin 13 on the new board are connected to what 9-1 were
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connected to on the old board. Pin 0 from the old board is brought over to the
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other side with a jumper wire to pin a2. TX, RX, A5, A4, A3 on the new board
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connect to what a0 to 12 connected to on the old board. GND attaches to g.
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You have to bend some of the pins at about a 45 degree angle to make them line up.
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Here's a side view of what the most bent pins look like:
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Here's a top view, USB port down, wireless antenna up. Note: the USB port orientation is opposite what it used to be.
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### New board:
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This is an [Adafruit Feather BLE](https://learn.adafruit.com/adafruit-feather-32u4-bluefruit-le/pinouts)
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|QMK | Screen Print | Feather |SCREEN|QMK REF |
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|----|--------------|-------------|------|---------|
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| D1 | SDA | RADIO | dfu | |
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| D0 | SCL | | 1/TX | D3 |
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| C6 | 5 | | 0/RX | D2 |
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| D7 | 6 | | MISO | B3/Blue |
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| B5 | 9 | | MOSI | B2/Blue |
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| B6 | 10 | | SCK | B1/Blue |
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| B7 | 11 | | A5 | F0 |
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| D6 | 12 | | a4 | F1 |
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| C7 | 13 | | a3 | F4 |
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| | usb | | a2 | F5 |
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| | e0 | | a1 | F6 |
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| | bat | | a0 | |
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| | Battery | | GND | |
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| | Connector | | ARf | |
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| | | | | USB PORT | 3V | |
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| | v v | | RST | |
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### Old board:
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This is an A Star, non-flipped
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|QMK| Scrn | A | Scrn|QMK |
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|---|------|-----|-----|----|
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| b5| 9 | USB | a0 | F7 |
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| b4| 8 | port| a1 | F6 |
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| e6| 7 | | 10 | B6 |
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| d7| 6 | | 11 | B7 |
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| c6| 5 | | 12 | D6 |
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| d4| 4 | | rst | RST|
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| d0| 3 | | 3v | x |
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| d1| 2 | | 5v | x |
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| d3| 1 | | g | G |
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| d2| 0 | | v | x |
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