User's Guide

MP280B User’s Guide
10
Enter the following string into the serial port RX to set the module's broadcast period,
T = X * 100ms:
"TTM: ADP-(X)"
Where X = "2", "5", "10", "15", "20", "25", "30", "40", "50" (all data formats are
ASCII).
For example, "TTM: ADP-(2)" indicates that the broadcast period is set to 200 ms. If
the setting is successful, it will receive "TTM:OK\r\n\0" confirmation from the TX pin. If
the command format is incorrect, it will return:
"TTM:ERP\r\n\0"
After the module is restarted, the module will broadcast according to the new
broadcast cycle.
4.10 Add custom broadcast content
Enter the following string into the serial port RX to customize the broadcast content.
"TTM:ADD-"+ Data
Data is the data for preparing additional broadcasts. The length is in the range of
0~16 and is input in ASCII format. For example, if you input
"TTM:ADD-Advertisement!" to the serial port RX, you will receive "TTM:OK\r\n\0"
from the TX pin. If the command format is incorrect, it will return:
"TTM:ERP\r\n\0"
This command takes effect immediately after it is set up, and you can use this
function to broadcast some custom content. If set to 16 all 0 data, the custom broadcast
data is considered not to be used, but the default broadcast content is used instead.
4.11 Define product identification code
Enter the following string into the serial port RX to customize the product identifier;
"TTM:PID-"+ Data
Data is a two-byte product identification code, ranging from 0x0000 to 0xFFFF (L = 2),
and each character is input to the serial port RX in ASCII format. For example, if you
input "TTM:PID-RS" to the serial port RX (the hexadecimal number corresponding to RS
is 0x5253), you will receive "TTM:OK\r\n\0" from the TX pin. If the command format is
incorrect, then Will return:
"TTM:ERP\r\n\0"
This ID will appear on the broadcast to filter the device or determine if it is a specific
product.
4.12 Transmit power setting
Input the following string to the serial port RX and set the corresponding transmit
power in dBm.
"TTM:TPL-(X)"
Where X="+4", "0", "-6", "-23" (the above data formats are all ASCII codes). For
example, "TTM: TPL-(+4)" means that the set transmission power is +4 dBm. After that,
it will receive the "TTM:OK\r\n\0" confirmation from the TX pin, and the module will