Microbit_Uart_Simple

The Microbit_Uart_Simple sensor provides the ability to read from and write strings to the BBC micro:bit’s serial UART port.

Properties

• BluetoothDevice – The BluetoothLE component connected to the micro:bit device (setter).

Methods

• SendMessage – Writes the given value UART_TX to the micro:bit. The size of the message will depend on the value of UART_TX. Numbers will be converted to integers and sent as 32-bit integer values. Strings will be encoded using UTF-8. Lists of objects will be sent as a sequence of bytes using the aforementioned rules for numbers and strings.

  Parameters:

  • UART_TX (any) — The value to transmit to the RX “pin” of the micro:bit. Strings will be encoded as UTF-8, numbers will be sent as 32-bit integers. Lists of values will be converted into be converted into a sequence of bytes depending on the type of each value in the list.

Events

• MessageReceived – The TXCharacteristicReceived event is run whenever messages are received over the micro:bit’s serial UART protocol.

  Parameters:

  • message (list) — A list of unsigned byte values read from the device.

• MessageSent – The WroteRXCharacteristic event is run after a message is written to the micro:bit via its serial UART.

  Parameters:

  • UART_TX_FIELD (list) — A list of unsigned byte values written to the device.