Bluetooth Navigation and Digital Rally Roadbook Controller

Thomas Styles / S.R.I. / Styles Rally Industries

Complete Instructions: https://www.instructables.com/Bluetooth-Navigation-Digital-Roadbook-Controller-4/

STL Files: https://www.thingiverse.com/stylesrallyindustries/designs

Support / News: https://www.facebook.com/StylesRallyIndustriesNZ

Controller Functions:
4 x Buttons
2 x Toggleable Profiles
Bluetooth LE
Bounce protection

Notes for Android Keycodes:
bleKeyboard.write(XX) is the ASCII Char in DEC format (A = 65, a = 97)
In Locus or similar set the expected Keycode to the Constant Value / Android KeyEvent syntax
KEYCODE_A = Constant Value: 29, KEYCODE_VOLUME_UP = Constant Value: 24
For DMD2 you must follow the implementation guide below.

Links:
https://www.asciitable.com/asciifull.gif
https://developer.android.com/reference/android/view/KeyEvent
https://www.drivemodedashboard.com/controller-implementation-guide/
https://docs.locusmap.app/doku.php?id=manual:user_guide:settings:control#use_hardware_controllers
https://www.rallynavigator.com/rally-navigator-mobile-application

Changelog:
v1.1, 01/12/2023
Added the missing bootloader and partition .bin files,
Enabled Serial Output for easier troubleshooting.

v1, 26/10/2023
Moved code to github, 
Fixed DMD2 integration. 

v.09, 23/10/2023
Added toggle mode for 2 x profiles,
Figured out how to change name of device while powered,
adc_power_off() for wifi power down has been depreciated, will look at other options,
Removed wifi power down and cpu throttling as now 12v powered.

v0.8, 17/09/2023
Serial output bug related to throttled CPU identified,
  doesn't seem to impact functionality.

v0.7, 28/08/2023
Set CPU Throttle function (currently 80MHZ)
Disabled WIFI module via ADC Power Off
Fixed Button hold function
Fixed Bonding / Pairing functions
Formatted Serial Output

v0.6, 27/08/2023
Changed max bonded devices to 9
Cleaned up code and fixed BT address reporting and bonding.
Disabled NimBLE as it was causing start up errors, will come back to this later.
  02:07:19.708 -> ESP_ERROR_CHECK failed: esp_err_t 0x103 (ESP_ERR_INVALID_STATE) at 0x40092f30
  02:07:19.708 -> file: "C:\Users\snoopy\Documents\Arduino\libraries\NimBLE-Arduino\src\NimBLEDevice.cpp" line 879
  02:07:19.756 -> func: static void NimBLEDevice::init(const string&)
  02:07:19.756 -> expression: esp_bt_controller_init(&bt_cfg)
  02:07:19.756 ->
  02:07:19.756 -> abort() was called at PC 0x40092f33 on core 1

v0.5, 14/08/2023
Fully configured for DMD2 functions.
DMD2 Beta required for 'DMD2 CTL xK' device names.

v0.4, 13/08/2023
Cleaned up code, added functions for button holding, only single
repeating character so far.
Tested multiple device names, appears that 'CICTRL' is the only
name detected by DMD2.

v0.3, 12/08/2023
Added mapping for DMD2 and changed Device name to required value.
Updated GPIO assignment.

v0.2, 11/08/2023
Modified GPIO assignment and removed all unnecessary code.

v0.1, 05/08/2023
Created new sketch and reorganised some functions and commands.

v.0, 04/08/2023
Thanks to Nordic Rally for the inspiration.
https://www.instructables.com/member/NordicRally/