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network is sent directly without any format. Command AT+MODE=x.1,x sets the second bit to 1 to configure the module
to work in transparent transmission mode.
5.2.2 Protocol Transmission
When supporting multiple sockets, in order to distinguish the source and destination of data, we define it as a
protocol transmission, which includes specified sending and broadcast sending.
5.2.2.1 Specify Send
Specifying to send means that the data packet input to the serial port contains a unique socketed ID label, and the
module transmits the data to the corresponding socket connection according to this ID number.
fixed head： 0xAA 0xFE 0x55
Socket ID：
0x00, represents the discovery of Socket 0 link
0x01, represents the discovery of Socket 1 link
0x02, represents the discovery of Socket 2 link
0x03, represents the discovery of the Socket 3 link
Data： Application Payload
For example: AA FE 55 00 AA BB CC In protocol transmission mode, send AA BB CC to Socket 0 through serial
port
5.2.2.2 Broadcast transmission
When the Socket ID is 0xff, it means broadcasting. If a 4-way connection is established, the data will be sent to the
4-way socket at the same time, otherwise, the data will be sent to the established connection.
5.2.2.3 Protocol reception
fixed head：
Socket ID：
For example: AA FE 55 00 00 03 11 22 33 In protocol mode, the 3-byte data received from Socket0, the content is: 0x11
0x22 0x33
Use the command AT+MODE=x.2,x to set the second bit to configure the module to work in the protocol transmission
mode.
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fixed head
Socket ID
3 Byte
1Byte
fixed head
Socket ID
3 Byte
1Byte
0xAA 0xFE 0x55
0x00, represents the discovery of Socket 0 link
0x01, represents the discovery of Socket 1 link
0x02, represents the discovery of Socket 2 link
0x03, represents the discovery of the Socket 3 link
length:
The actual length of the application data, range: 0~1000
data:
Application Payload
Data
N Byte
length
Data
2Byte
N Byte
E103-W03 User Manual
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