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Dragino LHT65 User Manual
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LHT65 T
emper
atur
e & Humidity sensor
15
/
56
2.4.7
Ext=1, E1 T
emper
ature
Sensor
➢
DS18B
20
temp
=0x0ADD/
100=27.81
℃
The last 2
bytes of da
ta
are m
eaningless
➢
DS18B
20
tem
p=
(0xF
54F
-
65536)/10
0=
-
27.37
℃
The last 2
bytes of da
ta
are m
eaningless
If the e
xternal s
ensor is 0x01
, and there is
no DS18B
20 connect
ed.
The t
emper
ature
will be se
t to
7FFF which is 3
27.67
℃
14
16
Table of Contents
Default Chapter
3
Table of Contents
3
1 Introduction
6
What Is LHT65 Temperature & Humidity Sensor
6
Features
7
Specifications
7
Power Consumption
8
Storage & Operation Temperature
9
Applications
9
2 Operation Mode
10
How to Activate LHT65
10
How It Works
10
Example to Join Lorawan Network
10
Uplink Payload
12
Decoder in TTN
13
BAT-Battery Info
13
Built-In Temperature
14
Built-In Humidity
14
Ext
14
Ext Value
14
Ext=1, E1 Temperature Sensor
15
Ext=4, Interrupt Sensor
16
Ext=5, E5 Illumination Sensor
18
Ext=6, ADC Sensor
19
Ext=7, Counting Sensor
20
Ext=8, Counting Sensor ( 4 Bytes)
21
Ext=9, E1 Sensor with Unix Time Stamp
23
Show Data on Mydevices
23
Datalog Feature
27
Unix Timestamp
27
Set Device Time
27
Poll Sensor Value
28
Datalog Uplink Payload
29
Alarm Mode
30
LED Indicator
32
3 Configure LHT65 Via at Command or Lorawan Downlink
33
Set Transmit Interval Time
33
Set External Sensor Mode
34
Enable/Disable Uplink DS18B20 Probe ID
35
Set Password
35
Quit at Command
35
Set to Sleep Mode
36
Set System Time
36
Set Time Sync Mode
36
Set Time Sync Interval
37
Print Data Entries Base on Page
37
Print Last few Data Entries
38
Clear Flash Record
38
4 Battery & How to Replace
39
Battery Type
39
Replace Battery
39
Power Consumption Analyze
40
5 Sensors & Accessories
41
E1 Temperature Probe
41
E2 Extension Cable
41
E3 Temperature Probe
42
E5 Illumination Probe
43
6 Faq
44
How to Use at Command to Configure LHT65
44
How to Upgrade the Firmware
47
How to Change the Lora Frequency Bands/Region
51
How to Set up LHT65 to Work with Single Channel Gateway such as LG01/LG02
51
How to Reset LHT65
53
What Is the Frequency Plan of LHT65
53
Why I See Packet Payload Is 00
53
7 Trouble Shooting
53
AT Command Input Doesn't Work
53
Why the Temperature Shows 327.67
53
Device no Responses after Interrupt During Upload or Configure
54
Have Trouble to Register to US915 or AU915 Frequency Band
54
8 Order Info
55
9 Packing Info
55
10 Support
56
11 FCC Warning
56
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Dragino LHT65 Specifications
General
Brand
Dragino
Model
LHT65
Category
Accessories
Language
English
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