MY-BC204 is a compact Bluetooth data module that supports BLE 5.1 and has obtained BQB certification. It offers support for Bluetooth profiles such as GATT, ATT, HID, and GAP.

Communication with MY-BC204 is facilitated through UART, and it offers AT command support for setting Bluetooth name, baud rate, and other configurable parameters. OTA upgrade is also supported by MY-BC204.

MY-BC204 offers firmware support for Central/Peripheral and multi-connection modes, allowing for programming via serial port tools or mobile apps