GitHub - houkanshan/arduino-bt-hid-proxy: Bluetooth HID proxy is implemented using Arduino. Make a Bluetooth keyboard or mouse (WIP) work in BIOS or device without BT stack (e.g. TMK USB to USB Converter)
Optical Sensor HID Proximity Reader Proxpoint Plus 6005 For 125 KHZ Proximity Cards, Black at Rs 7250/piece in Delhi
Bluetooth 4.0 in Usb-Bluetooth-Adapter & -Dongles online kaufen | eBay
BCM94360CD and Apple BT keyboard: HID Proxy - YouTube