Merge pull request #221 from WIrral/master

Add information regarding mapping of analog triggers on Android

README.md

@@ -22,7 +22,7 @@ It would be great however if any improvements are fed back into this version.
  - [x] Output report function
  - [x] Functions available for force pairing/ignore current client and/or delete pairings
  - [x] Compatible with Windows
- - [x] Compatible with Android (Android OS maps default buttons / axes / hats slightly differently than Windows)
+ - [x] Compatible with Android (Android OS maps default buttons / axes / hats slightly differently than Windows) (see notes)
  - [x] Compatible with Linux (limited testing)
  - [x] Compatible with MacOS X (limited testing)
  - [ ] Compatible with iOS (No - not even for accessibility switch - This is not a “Made for iPhone” (MFI) compatible device)
@@ -145,10 +145,12 @@ Relies on [NimBLE-Arduino](https://github.com/h2zero/NimBLE-Arduino)
 Use [this](http://www.planetpointy.co.uk/joystick-test-application/) Windows test app to test/see all of the buttons
 Ensure you have Direct X 9 installed
 
+Gamepads desgined for Android use a different button mapping. This effects analog triggers, where the standard left and right trigger axes are not detected.
+Android calls the HID report for right trigger `"GAS"` and left trigger `"BRAKE"`. Enabling the `"Accelerator"` and `"Brake"` simulation controls allows them to be used instead of right and left trigger.
+
 You might also be interested in:
 - [ESP32-BLE-Mouse](https://github.com/T-vK/ESP32-BLE-Mouse)
 - [ESP32-BLE-Keyboard](https://github.com/T-vK/ESP32-BLE-Keyboard)
-- [Composite Gamepad/Mouse/Keyboard and Xinput capable fork of this library](https://github.com/Mystfit/ESP32-BLE-CompositeHID)
 
 or the NimBLE versions at