Datasheet

BLE Services

The following commands allow you to interact with various GATT services present on

Bluefruit LE modules when running in Command Mode.

AT+BLEUARTTX

This command will transmit the specified text message out via the UART Service while you

are running in Command Mode.

Codebase Revision: 0.3.0

Parameters: The message payload to transmit. The payload can be up to 240 characters

(since AT command strings are limited to a maximum of 256 bytes total).

Output: This command will produce an ERROR message if you are not connected to a

central device, or if the internal TX FIFO on the Bluefruit LE module is full.

As of firmware release 0.6.2 and higher, AT+BLEUARTTX can accept a limited set of escape

code sequences:

\r = carriage return

\n = new line

\t = tab

\b = backspace

\\ = backward slash

As of firmware release 0.6.7 and higher, AT+BLEUARTTX can accept the following escape

code sequence since AT+BLEUARTTX=? has a specific meaning to the AT parser:

\? = transmits a single question mark

As of firmware release 0.7.6 and higher, AT+BLEUARTTX can accept the following escape

code sequence:

\+ = transmit a single '+' character without having to worry about `+++` mode switch

combinations

ESCAPE SEQUENCE NOTE: If you are trying to send escape sequences in code via

something like 'ble.print("...");' please note that you will need to send a double