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UART-WIFI232-B2 User Manual
Name
No.
bytes
1
header
2
Length
3
Command
code
4
Checksum
byte
No.
Name
Bytes
1
Header
1
2
Length
2
3
Command
1
code
4
AP number
1
5
SSID1
Indefinite
length
6
end
1
character
7
Signal
1
strength 1
8
End
2
character
...
...
...
M
SSIDn
Indefinite
length
M+1
End
1
character
M+2
Signal
1
strength n
M+3
End
2
Character
M+4
Checksum
1
byte
Table query instruction
Number of
Note
1
Fixed value 0xFF
2
The number of bytes after the length (excluding the
length) and before the checksum (excluding the
checksum).
1
Command type, 0x01 is a query instruction
1
The cumulative sum of all bytes after the header
(excluding the header) and before the checksum
(excluding the checksum).
Table Query Reply Instructions
Note
Fixed value 0xFF
All bytes after the length (excluding the length) and before the
checksum byte (excluding the checksum byte)
Command type, and the reply instruction corresponding to the
query instruction is 0x81
The number of APS currently searched
The SSID of router 1
Router 1' s SSID terminator, fixed value 0x00
The signal strength of router 1 network ranges from 0 to 100, and
the corresponding actual value is 0% to 100%
Terminator of signal strength 1, 0x0D, 0x0A
.........
The SSID of router n
SSID terminator of router n, fixed value 0x00
The signal strength of router N network ranges from 0 to 100, and
the corresponding actual value is 0% to 100%
The end character of signal strength n, 0x0D, 0x0A
The cumulative sum of all bytes after the header (excluding the
header) and before the checksum byte (excluding the checksum
byte).
65
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