Waveshare WIFI-LPT100-B, Руководство пользователя, Страница: 22 / 60

WIFI-LPT100-B User Manual
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2) Respond
Table 10 Response of Query Command
No. Name Bytes Description
1 Head 1 Fixed value: 0xFF
2 Length 2
length from Length (not
include) to Check word (not
included)
3 Command byte 11
type of command, 0x81:
response of query
4 number of AP 1 The number of AP searched
5 SSID1 SSID of router 1
6 end mark 1 Fixed: 0x00
7 strength of signal 1 1
signal strength of router 1
network. Range: 0~100 (related
real value: 0%~100%)
8 end mark 2 0x0D, 0x0A
… … … …
M SSID n SSID of router n
M+1 end mark 1 Fixed: 0x00
M+2 Strength of signal n 1
signal strength of router n
network. Range: 0~100 (related
real value: 0%~100%)
M+3 end mark 2 0x0D, 0x0A
M+4 Check word 1
the sum of the bytes from Head
(not included) to Check word
(not included)
For example:
Phone to Module (HEX): FF 00 01 01 02
Module reply to phone (HEX): FF 00 14 81 02 54 45 53 54 31 00 40 0D 0A 54
45 53 54 32 00 37 0D 0A 1F
Description: Phone send query command to module to query the information
of router. And the information replied from module is that: there are 2 routers, the
SSID of router 1 is “TEST1”, its signal strength is 64%. And the SSID of router 2 is
“TEST2”, its signal strength is 55%
Note : the information is order according to the signal strength of router.
3
）
Set Command
Table 11 Set Command
No. Name Bytes Description