Nintendo Switch Controller delayed response on Android TV 9

Question

I'm owning a Xiaomi Mi TV 4A that runs Android TV 9. I would like to play games on it with the SNES -aka Super Famicom- Nintendo Switch Bluetooth controller.


Connecting the controller works but there is a big delay after pressing a button and there are random other issues like multiple steps instead of one after pressing the D-Pad in a direction.


Is this an issue with the controller or are there settings I'm missing?


I updated the OS, tried reconnecting the Gamepad and rebooting the TV without success.


— Tom | Sources

Answer

Sadly this is an issue with Nintendo Switch Controllers


While Nintendo Switch Controllers use Bluetooth HID, they aren't completely conforming to the specification which means that you'll need a modified driver (and that is hard on Android).


Bluetooth HID (Human Interface Device) is the spec that allows for bluetooth keyboards, mice, and gamepads to communicate with supporting devices.


So I found this project trying to document the interface to the Nintendo Switch. As can be seen at the end of Issue #7 HID protocol for Bluetooth/USB there has been some success on Linux, but Issue #92 for Android has remained unanswered.


Changing the bluetooth driver is a Custom ROM level change. A compatible Android bluetooth driver would have to be made and support your bluetooth chipset and your platform hardware. As you are running TV hardware, I have doubts that any Custom ROMs exist, and then writing a driver supporting the Bluetooth chipset would be a further obstacle.


Based on:


Nintendo Switch Reverse Engineering HID Notes


Issue #7 - HID Protocol for Bluetooth / USB


Issue #92 - How to communicate with joycon in Android platform?


— Morrison Chang | Sources

Q & A

Can anyone identify this app notification
Can I open Whatsapp backup messages from Nokia C7 on Android phone?
Settings > Display > Navigation Bar > Background Color Options Suddenly Limited
How to launch any activity?
Are lock screen pattern and system start pattern the same?
How can I restore /system/bin/toolbox?
Unable to install .apk from /system/priv-app
Installing .apk as system app directly (with root)
Permanently setting launcher in Nox
How does Samsung Pay work?
Kindle fire 5th gen root
Explain "Don't Downgrade!" warnings when flashing stock firmware
How do you install your Android Studio app onto an LG Smart Watch Sport?
What is this circular icon in my Android status bar?
Continually scanning for network drains battery, but I've got network?
What is this icon that showed up on my android?
How can I get Google Photos app to see old/other photos stored on SD card?
Do some localizations of Android require significantly more memory?
host file in android
WhatsApp saving contacts with nicknames in a group

Topics

2D Engines   3D Engines   9-Patch   Action Bars   Activities   ADB   Advertisements   Analytics   Animations   ANR   AOP   API   APK   APT   Architecture   Audio   Autocomplete   Background Processing   Backward Compatibility   Badges   Bar Codes   Benchmarking   Bitmaps   Bluetooth   Blur Effects   Bread Crumbs   BRMS   Browser Extensions   Build Systems   Bundles   Buttons   Caching   Camera   Canvas   Cards   Carousels   Changelog   Checkboxes   Cloud Storages   Color Analysis   Color Pickers   Colors   Comet/Push   Compass Sensors   Conferences   Content Providers   Continuous Integration   Crash Reports   Credit Cards   Credits   CSV   Curl/Flip   Data Binding   Data Generators   Data Structures   Database   Database Browsers   Date &   Debugging   Decompilers   Deep Links   Dependency Injections   Design   Design Patterns   Dex   Dialogs   Distributed Computing   Distribution Platforms   Download Managers   Drawables   Emoji   Emulators   EPUB   Equalizers &   Event Buses   Exception Handling   Face Recognition   Feedback &   File System   File/Directory   Fingerprint   Floating Action   Fonts   Forms   Fragments   FRP   FSM   Functional Programming   Gamepads   Games   Geocaching   Gestures   GIF   Glow Pad   Gradle Plugins   Graphics   Grid Views   Highlighting   HTML   HTTP Mocking   Icons   IDE   IDE Plugins   Image Croppers   Image Loaders   Image Pickers   Image Processing   Image Views   Instrumentation   Intents   Job Schedulers   JSON   Keyboard   Kotlin   Layouts   Library Demos   List View   List Views   Localization   Location   Lock Patterns   Logcat   Logging   Mails   Maps   Markdown   Mathematics   Maven Plugins   MBaaS   Media   Menus   Messaging   MIME   Mobile Web   Native Image   Navigation   NDK   Networking   NFC   NoSQL   Number Pickers   OAuth   Object Mocking   OCR Engines   OpenGL   ORM   Other Pickers   Parallax List   Parcelables   Particle Systems   Password Inputs   PDF   Permissions   Physics Engines   Platforms   Plugin Frameworks   Preferences   Progress Indicators   ProGuard   Properties   Protocol Buffer   Pull To   Purchases   Push/Pull   QR Codes   Quick Return   Radio Buttons   Range Bars   Ratings   Recycler Views   Resources   REST   Ripple Effects   RSS   Screenshots   Scripting   Scroll Views   SDK   Search Inputs   Security   Sensors   Services   Showcase Views   Signatures   Sliding Panels   Snackbars   SOAP   Social Networks   Spannable   Spinners   Splash Screens   SSH   Static Analysis   Status Bars   Styling   SVG   System   Tags   Task Managers   TDD &   Template Engines   Testing   Testing Tools   Text Formatting   Text Views   Text Watchers   Text-to   Toasts   Toolkits For   Tools   Tooltips   Trainings   TV   Twitter   Updaters   USB   User Stories   Utils   Validation   Video   View Adapters   View Pagers   Views   Watch Face   Wearable Data   Wearables   Weather   Web Tools   Web Views   WebRTC   WebSockets   Wheel Widgets   Wi-Fi   Widgets   Windows   Wizards   XML   XMPP   YAML   ZIP Codes