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LHT65 Temperature & Humidity sensor
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Step5:
Click the start button to download the image to LHT65.
*If you change
different LoRa Frequency
Bands/Region
, you need using AT+FDR command
to restore factory data after program success
5.2
How to change the LoRa Frequency Bands/Region?
User can follow the introduction for
. When download the images, choose
the required image file for download.
5.3
How to choose the right frequency band set for US915, AU915, CN470 band
s
?
The frequency bands US915, AU915, CN470 total has 72 frequencies. As specify in
1.0.3 Regional Parameters.xlsx
The LHT65 choose CHE=2 by default(US915/AU915). If user has issue to join the LoRaWAN
network, please check if the frequency band matches the LoRaWAN network settings. If not,
properly need to use AT+CHE command to change.
User can configure the LT to work in 8 channel models by using the AT+CHE command. For
example, in US band, the table is as below. If we run AT+CHE=2. The device will work in Channel
8-15
CHE
US915 Uplink Channels(125KHz,4/5,Unit:MHz,CHS=0)
0
ENABLE Channel 0-63
1
902.3 902.5 902.7 902.9 903.1 903.3 903.5 903.7
Channel 0-7
2
903.9 904.1 904.3 904.5 904.7 904.9 905.1 905.3
Channel 8-15
3
905.5 905.7 905.9 906.1 906.3 906.5 906.7 906.9 Channel 16-23
4
907.1 907.3 907.5 907.7 907.9 908.1 908.3 908.5 Channel 24-31
