Adafruit Bluefruit LE Micro iOS control for iBooks

README

To control iBooks, you can activate VoiceOver, mute it (as you don't actually want voice),
select the page progress bar, and then use up/down keyboard buttons.

You can set Settings→General→Accessibility→Accessibility Shortcut = VoiceOver to set 
triple-click of Home to (de-)activate VoiceOver.

AT+BLEHIDCONTROLKEY=0x0223    # Sends iOS Home button
AT+BLEHIDCONTROLKEY=0x30      # Sends iOS Power button
AT+BLEHIDCONTROLKEY=0xb8      # Sends iOS Show Keyboard (Eject)
AT+BLEHIDCONTROLKEY=0xb0      # Sends iOS Play
AT+BLEHIDCONTROLKEY=0xb1      # Sends iOS Pause
AT+BLEHIDCONTROLKEY=0xb3      # Sends iOS FFwd / Next
AT+BLEHIDCONTROLKEY=0xb4      # Sends iOS Rewind / Previous
AT+BLEHIDCONTROLKEY=0xe2      # Sends iOS toggle Mute
AT+BLEHIDCONTROLKEY=0x0221    # Sends iOS Search

... or it turns out HOME, PLAYPAUSE, SEARCH, etc. also work

AT+BLEKEYBOARDCODE=00-00-52   # Starts Up
AT+BLEKEYBOARDCODE=00-00-51   # Starts Down
AT+BLEKEYBOARDCODE=00-00-50   # Starts Left
AT+BLEKEYBOARDCODE=00-00-4F   # Starts Right
AT+BLEKEYBOARDCODE=00-00-4B   # Starts PgUp
AT+BLEKEYBOARDCODE=00-00-4E   # Starts PgDn

AT+BLEKEYBOARDCODE=00-00      # Stop

http://www.freebsddiary.org/APC/usb_hid_usages.php

https://learn.adafruit.com/bluefruit-le-micro-atmega32u4-microcontroller-usb-bluetooth-le-in-one/ble-services


I've sent an Enhancement Request to Apple, as there's no reason why iBooks shouldn't
support Keyboard controls out-of-the-box (ie. without Accessibility activated)
Accessibility functions are excessively inaccessible, ironically: you need to do
fiddly stuff to get iBooks in a state where it can be used with Accessibility functions.

Ideally, iBooks would recognise the standard Skip Forward/Back media buttons, but I can
imagine some users would like to control music while reading.  Personally, I'd make that
a configurable setting, but that's not really Appleish.

Regardless, no reason why it couldn't accept Keyboard Up/Down/Left/Right or PgUp/PgDn
anyway.  It'd be good if it accepted whatever keycodes common wireless presenter remotes
use, as then no hacking would be necessary at all.