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Example
Precautions
command chara
Command t
cters
ype
test comma
nd
quer y com
mand
CRSSI
( Query channe
l signal strengt
Parameter D
h )
escription
Return valu
e descriptio
n
Example
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2 - SF10, BW125
3 - SF9, BW125
4 - SF8, BW125
5 - SF7, BW125
AT+CDATARATE=1
OK
It needs to be set before sending data, and it will be invalid after
enabling ADR.
command format
AT+CRSSI=?
AT+CRSSI FREQBANDID
X?
<FREQBANDIDX>: Indicates the number of the frequency band,
starting from 0, 1A2 group number is 1
Returns the RSSI of 8 channels within a band.
AT+CRSSI 1?
+CRSSI:
0:-157
1:-157
E78-DTU(470LN22) User Manual
response
+CRSSI
OK
+CRSSI:
0:<Channel 0 rssi>
1:<Channel 1 rssi>
...
7:<Channel 7 rssi>
OK
39
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