USR-C321
Low Power
Minisize
WiFi Module User Manual
17
17
17
17
/
41
41
41
41
Explanation:
The phone PDA send searching command to module, the response from module is: SSID
of router1 is “TEST1”, signal strength of router1 is 64%; SSID of router2 is “TEST2”, signal
strength of router2 is 55%.
Note: The information of routers is ordered by signal strength.
a) Setting Command
No
Name
Num of Bytes
Description
1
head
1
fixed value:0xFF
2
length
2
Sum of data bytes from length bytes to check byte
(not contain length bytes and check byte).
3
cmd
1
Command type, 0x02
4
reserve
1
fixed value:0x00
5
SSID
Unsized
SSID of router
6
separator
2
fixed value:0x0D,0x0A
7
password
Unsized
Password of router
8
check
1
Sum of bytes from head (not contained) byte to
check byte (not contained).
Response for Setting
No
Name
Num of Bytes
Description
1
head
1
fixed value:0xFF
2
length
2
Sum of data bytes from length bytes to check
byte(not contain length bytes and check byte).
3
cmd
1
Command type, 0x82
4
Check for
SSID
1
If the SSID set by PDA exist, check value is 0x01,
otherwise is 0x00.
5
Check for
password
1
If the form of password set by PDA is correct, check
value is 0x01, otherwise is 0x00.
6
check
1
Sum of bytes from head (not contained) byte to
