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+# Bluetreus - a conversion of an Atreus to use a Bluetooth microcontroller
+
+I have created a keymap for this with Bluetooth control on layer 2 so that you
+can switch the keyboard between auto, USB only, and Bluetooth only. I'm
+working on fixing turning on auto by default, but have still not succeeded.
+
+To build it and flash it, do:
+
+```
+make atreus/feather:clash:flash
+```
+
+## Wiring it up
+Physically, SDA to pin 13 on the new board are connected to what 9-1 were
+connected to on the old board. Pin 0 from the old board is brought over to the
+other side with a jumper wire to pin a2. TX, RX, A5, A4, A3 on the new board
+connect to what a0 to 12 connected to on the old board. GND attaches to g.
+You have to bend some of the pins at about a 45 degree angle to make them line up.
+Here's a side view of what the most bent pins look like:
+![Side View](https://i.imgur.com/S6ngibe.jpg)
+Here's a top view, USB port down, wireless antenna up. Note: the USB port orientation is opposite what it used to be.
+![Top View](https://i.imgur.com/DBjkxU2.jpg)
+
+### New board:
+This is an [Adafruit Feather BLE](https://learn.adafruit.com/adafruit-feather-32u4-bluefruit-le/pinouts)
+
+|QMK | Screen Print | Feather |SCREEN|QMK REF |
+|----|--------------|-------------|------|---------|
+| D1 | SDA | RADIO | dfu | |
+| D0 | SCL | | 1/TX | D3 |
+| C6 | 5 | | 0/RX | D2 |
+| D7 | 6 | | MISO | B3/Blue |
+| B5 | 9 | | MOSI | B2/Blue |
+| B6 | 10 | | SCK | B1/Blue |
+| B7 | 11 | | A5 | F0 |
+| D6 | 12 | | a4 | F1 |
+| C7 | 13 | | a3 | F4 |
+| | usb | | a2 | F5 |
+| | e0 | | a1 | F6 |
+| | bat | | a0 | |
+| | Battery | | GND | |
+| | Connector | | ARf | |
+| | | | | USB PORT | 3V | |
+| | v v | | RST | |
+
+### Old board:
+This is an A Star, non-flipped
+
+|QMK| Scrn | A | Scrn|QMK |
+|---|------|-----|-----|----|
+| b5| 9 | USB | a0 | F7 |
+| b4| 8 | port| a1 | F6 |
+| e6| 7 | | 10 | B6 |
+| d7| 6 | | 11 | B7 |
+| c6| 5 | | 12 | D6 |
+| d4| 4 | | rst | RST|
+| d0| 3 | | 3v | x |
+| d1| 2 | | 5v | x |
+| d3| 1 | | g | G |
+| d2| 0 | | v | x |