The Fami BT is a Bluetooth Adapter that allows you to connect various Bluetooth devices to your Famicom. This includes PS3, PS4, PS5, Xbox One, Xbox Series S & X, Switch Joy-Cons, 8BitDo (Bluetooth only) and other Bluetooth controllers.

The Fami BT runs on the incredible BlueRetro platform by Jacques Gagnon. A portion of each sale is donated to Jacques to further support the platform.

Features:

• Use various Bluetooth devices with your Famicom
• Supports Turbo
• Very low latency, comparable to “2.4Ghz” devices (varies based on controller being used)
• Keyboard Support
• Mouse Support, emulates a Famicom Hori Trackball
• Remappable buttons
• Easy to use web interface
• Open source and user updatable
• Plug & Play

Note about some US Games:

The Fami BT uses the Famicom’s expansion port for connectivity. Because the US NES didn’t have the expansion port, some US game developers didn’t include the required code to support external controllers through this port.

Luckily, there are a few solutions to this problem:

• If you’re using a flash cart like an EverDrive, some games have been patched for support: https://github.com/darthcloud/famicom-exp-patches
• Famicom Expansion Port Switcher Mod by Jeff Chen. This mod adds a switch for toggling between the physical controllers and expansion slot:
  https://github.com/jeffqchen/Famicom-Expansion-Port-Switcher