Tinybit bluetooth controller sypically refers to the remote control system—either a mobile application or a dedicated wireless gamepad—used to operate Tinybit  an educational smart robot car powered by a BBC micro:bit board Because the micro:bit uses open-source Bluetooth UART protocols, developers and students can use custom Bluetooth gamepad apps or web dashboards to send directional strings ou load a program onto the Tiny:bit’s micro:bit using Microsoft MakeCode or Python that enables Bluetooth communication.