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Last modified by Mengting Qiu on 2025/07/03 14:48
From version 158.1
edited by Bei Jinggeng
on 2022/06/20 16:02
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To version 168.7
edited by Xiaoling
on 2022/06/21 09:33
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Title
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1 -LHT65N LoRaWAN Temperature & Humidity Sensor Manual
1 +LHT52 - LoRaWAN Temperature & Humidity Sensor User Manual
Parent
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1 -Main.WebHome
1 +Main.User Manual for LoRaWAN End Nodes.WebHome
Author
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1 -XWiki.Bei
1 +XWiki.Xiaoling
Content
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1 1  (% style="text-align:center" %)
2 -[[image:image-20220613162008-1.png||_mstalt="428142" height="579" width="379"]]
2 +[[image:1655774244188-589.png]]
3 3  
4 4  
5 5  
6 6  
7 -
8 8  (% _mstvisible="1" %)
9 9  (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
10 10  
11 -{{toc/}}
12 12  
13 13  
14 14  
15 15  
14 +
15 +
16 16  (% _mstvisible="1" %)
17 17  = (% _msthash="277498" _msttexthash="253045" _mstvisible="3" %)1. Introduction(%%) =
18 18  
19 19  (% _mstvisible="1" %)
20 -== (% _msthash="1532895" _msttexthash="1426958" _mstvisible="3" %)1.1 What is LHT65N Temperature & Humidity Sensor(%%) ==
20 +== (% _msthash="1532895" _msttexthash="1426958" _mstvisible="3" %)1.1 What is LHT52 Temperature & Humidity Sensor(%%) ==
21 21  
22 22  (% _mstvisible="1" %)
23 23  (((
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24 24  (% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
25 25  
26 26  
27 -(% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
28 -The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% _mstvisible="4" style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% _mstvisible="4" style="color:#4f81bd" %)**Temperature Sensor**(% _mstvisible="3" %)**.**
29 -)))
27 +The Dragino LHT52 Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:blue" %)**built-in Temperature & Humidity sensor** (%%)and has a USB Type-C sensor connector to connect to external sensors such as external Temperature Sensor.
30 30  
31 -(% _mstvisible="1" %)
32 -(((
33 -(% _msthash="506052" _msttexthash="66005810" _mstvisible="2" %)
34 -The LHT65N allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
35 -)))
29 +LHT52 (% style="color:blue" %)**senses environment temperature and humidity**(%%) and send these values via long-range wireless LoRaWAN protocol. It targets professional wireless sensor network applications such as food service, smart metering, smart cities, building automation, and so on.
36 36  
37 -(% _mstvisible="1" %)
38 -(((
39 -(% _msthash="506053" _msttexthash="4298047" _mstvisible="2" %)
40 -LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
41 -)))
31 +LHT52 supports(% style="color:blue" %)** 2 x AAA batteries **(%%)and works for a long time up to several years. Use can replace the batteries easily after they are finished.
42 42  
43 -(% _mstvisible="1" %)
44 -(((
45 -(% _msthash="506054" _msttexthash="6016374" _mstvisible="2" %)
46 -LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
47 -)))
33 +LHT52 is fully compatible with LoRaWAN v1.0.3 protocol, it can work with standard LoRaWAN gateway.
48 48  
49 -(% _mstvisible="1" %)
50 -(((
51 -(% _msthash="506055" _msttexthash="17023136" _mstvisible="2" %)
52 -LHT65N supports (% _mstvisible="4" style="color:#4f81bd" %)**Datalog Feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
35 +LHT52 supports(% style="color:blue" %)** Datalog feature** (%%)to make sure users won’t miss sensor data. It records sensor value for every uplink. These values can be retrieved by LoRaWAN server via downlink command.
36 +
37 +LHT52 supports(% style="color:blue" %)** temperature alarm feature**(%%). It can uplink alarm in a short interval while temperature exceeds preset limits.
38 +
39 +*Battery life depends how often to send data, please see [[battery analyzer>>||anchor="H4.2A0PowerConsumptionAnalyze"]].
40 +
41 +(% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
42 +[[image:1655774519494-861.png]]
53 53  )))
54 54  
55 55  (% _mstvisible="1" %)
56 56  (((
57 57  (% _msthash="506056" _msttexthash="5557097" _mstvisible="2" %)
58 -*The actual battery life depends on how often to send data, please see the battery analyzer chapter.
59 -
60 -(% _msthash="506056" _msttexthash="5557097" _mstvisible="2" %)
61 61  
62 62  )))
63 63  
... ... @@ -65,18 +65,21 @@
65 65  == (% _msthash="182559" _msttexthash="163319" _mstvisible="3" %)1.2 Features(%%) ==
66 66  
67 67  (% _mstvisible="1" %)
68 -* Wall mountable
69 -* LoRaWAN v1.0.3 Class A protocol
55 +* Wall Attachable.
56 +* LoRaWAN v1.0.3 Class A protocol.
57 +* Built-in Temperature & Humidity sensor
58 +* Optional External Probe
70 70  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
71 71  * AT Commands to change parameters
72 72  * Remote configure parameters via LoRaWAN Downlink
73 -* Firmware upgradeable via program port
74 -* Built-in 2400mAh battery for up to 10 years of use.
75 -* Built-in Temperature & Humidity sensor
76 -* Optional External Sensors
77 -* Tri-color LED to indicate working status
62 +* Firmware upgradable via program port
63 +* Support 2 x AAA LR03 batteries.
78 78  * Datalog feature
65 +* IP Rating: IP52
79 79  
67 +
68 +
69 +
80 80  (% _mstvisible="1" %)
81 81  == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) ==
82 82  
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89 89  (% _msthash="506057" _msttexthash="671437" _mstvisible="4" %)**Built-in Temperature Sensor:**
90 90  )))
91 91  
92 -(% _mstvisible="1" %)
93 -* (% _mstvisible="3" %)
94 -(((
95 -(% _msthash="902993" _msttexthash="294424" _mstvisible="4" %)
96 -Resolution: 0.01 °C
97 -)))
98 -* (% _mstvisible="3" %)
99 -(((
100 -(% _msthash="902994" _msttexthash="690664" _mstvisible="4" %)
101 -Accuracy Tolerance : Typ ±0.3 °C
102 -)))
103 -* (% _mstvisible="3" %)
104 -(((
105 -(% _msthash="902995" _msttexthash="504647" _mstvisible="4" %)
106 -Long Term Drift: < 0.02 °C/yr
107 -)))
108 -* (% _mstvisible="3" %)
109 -(((
110 -(% _msthash="902996" _msttexthash="478257" _mstvisible="4" %)
111 -Operating Range: -40 ~~ 85 °C
112 -)))
82 +* Resolution: 0.01 °C
83 +* Accuracy Tolerance: Typ ±0.3 °C
84 +* Long Term Drift: < 0.02 °C/yr
85 +* Operating Range: -20 ~~ 50 °C
113 113  
114 114  (% _mstvisible="1" %)
115 115  (((
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118 118  
119 119  (% _mstvisible="2" %)
120 120  (% _msthash="506058" _msttexthash="544453" _mstvisible="4" %)**Built-in Humidity Sensor:**
121 -)))
122 122  
123 -(% _mstvisible="1" %)
124 -* (% _mstvisible="3" %)
125 -(((
126 -(% _msthash="902997" _msttexthash="282438" _mstvisible="4" %)
127 -Resolution: 0.04 %RH
95 +
96 +* Resolution: 0.1 %RH
97 +* Accuracy Tolerance: Typ ±3 %RH
98 +* Long Term Drift: < 0.02 °C/yr
99 +* Operating Range: 0 ~~ 99.0 %RH(no Dew)
128 128  )))
129 -* (% _mstvisible="3" %)
130 -(((
131 -(% _msthash="902998" _msttexthash="628771" _mstvisible="4" %)
132 -Accuracy Tolerance : Typ ±3 %RH
133 -)))
134 -* (% _mstvisible="3" %)
135 -(((
136 -(% _msthash="902999" _msttexthash="504647" _mstvisible="4" %)
137 -Long Term Drift: < 0.02 °C/yr
138 -)))
139 -* (% _mstvisible="3" %)
140 -(((
141 -(% _msthash="903000" _msttexthash="421291" _mstvisible="4" %)
142 -Operating Range: 0 ~~ 96 %RH
143 -)))
144 144  
145 145  (% _mstvisible="1" %)
146 146  (((
147 147  (% _mstvisible="2" %)
148 148  
149 -
150 -(% _mstvisible="2" %)
151 -(% _msthash="506059" _msttexthash="680537" _mstvisible="4" %)**External Temperature Sensor:**
152 152  )))
153 153  
154 -(% _mstvisible="1" %)
155 -* (% _mstvisible="3" %)
108 +(% _mstvisible="3" %)
156 156  (((
157 -(% _msthash="903001" _msttexthash="332254" _mstvisible="4" %)
158 -Resolution: 0.0625 °C
159 -)))
160 -* (% _mstvisible="3" %)
161 -(((
162 -(% _msthash="903002" _msttexthash="782600" _mstvisible="4" %)
163 -±0.5°C accuracy from -10°C to +85°C
164 -)))
165 -* (% _mstvisible="3" %)
166 -(((
167 -(% _msthash="903003" _msttexthash="729482" _mstvisible="4" %)
168 -±2°C accuracy from -55°C to +125°C
169 -)))
170 -* (% _mstvisible="3" %)
171 -(((
172 -(% _msthash="903004" _msttexthash="592540" _mstvisible="4" %)
173 -Operating Range: -55 °C ~~ 125 °C
110 +
174 174  
175 175  
176 176  (% _msthash="903004" _msttexthash="592540" _mstvisible="4" %)
114 +== 1.4  Power Consumption ==
115 +
116 +LHT52 (without external sensor): Idle: 5uA, Transmit: max 110mA
117 +
118 +LHT52 + External Temperature Probe (AS-01): Idle: 6uA, Transmit: max 110mA.
119 +
120 +
121 +
122 +
123 +
124 +
125 +
126 +
127 +
128 +
129 +
130 +
131 +
132 +
133 +
134 +
135 +
177 177  
178 178  )))
179 179  
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591 591  * Sync time OK: 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
592 592  * Unix Time Request:1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
593 593  
594 -
595 595  ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable)(%%) ====
596 596  
555 +In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
597 597  
557 +be used to power the external ADC sensor; user can control the power on time for this
598 598  
559 +sensor by setting:
599 599  
561 +AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
562 +
563 +
564 +
600 600  (% _mstvisible="1" %)
601 601  == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
602 602  
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1923 1923  (% _msthash="506131" _msttexthash="14585714" %)
1924 1924  AT commands：
1925 1925  
1926 -[[image:image-20220615092034-1.png||_mstalt="428870"]]
1891 +[[image:image-20220620153708-1.png||height="603" width="723"]]
1927 1927  
1928 1928  (% _msthash="506132" _msttexthash="337922" %)
1929 1929  Downlink commands:
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1932 1932  (% _msthash="506133" _msttexthash="33046" %)
1933 1933  **TTN:**
1934 1934  
1935 -[[image:image-20220615092124-2.png||_mstalt="429221" height="843" width="893"]]
1900 +[[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1936 1936  
1937 1937  
1938 1938  (% _msthash="506134" _msttexthash="11113791" %)
1939 1939  **Helium：**
1940 1940  
1941 -[[image:image-20220615092551-3.png||_mstalt="430794" height="556" width="1097"]]
1906 +[[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1942 1942  
1943 1943  
1944 1944  (% _msthash="506135" _msttexthash="4159844" %)
... ... @@ -1946,13 +1946,13 @@
1946 1946  
1947 1947  [[image:image-20220615094850-6.png||_mstalt="433082"]]
1948 1948  
1949 -[[image:image-20220615094904-7.png||_mstalt="433485" height="329" width="1067"]]
1914 +[[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1950 1950  
1951 1951  
1952 1952  (% _msthash="506136" _msttexthash="39286" %)
1953 1953  **Aws:**
1954 1954  
1955 -[[image:image-20220615092939-4.png||_mstalt="434460" height="532" width="1062"]]
1920 +[[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1956 1956  
1957 1957  
1958 1958  == (% _msthash="1220570" _msttexthash="33199257" %)6.3 How to change the uplink interval？(%%) ==
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1965 1965  
1966 1966  [[image:image-20220615153355-1.png]]
1967 1967  
1933 +[[image:image-20220620154900-5.jpeg||height="427" width="570"]]
1934 +
1968 1968  (% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1969 1969  
1970 1970  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
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1971 1971  
1972 1972  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1973 1973  
1974 -[[image:image-20220615153914-2.jpeg||height="608" width="456"]]
1975 1975  
1942 +To switch from download mode to command mode, press reset key
1976 1976  
1944 +
1977 1977  (((
1978 1978  (% _msthash="736728" _msttexthash="67213055" %)
1979 1979  (((
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1985 1985  (% _msthash="736729" _msttexthash="1907009" %)
1986 1986  Input password and ATZ to activate LHT65N,As shown below:
1987 1987  
1988 -[[image:image-20220615154519-3.png]]
1956 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1989 1989  
1990 1990  
1991 1991  )))
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1992 1992  
1993 1993  == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1994 1994  
1963 +
1995 1995  [[image:image-20220615153355-1.png]]
1996 1996  
1966 +(% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1967 +
1997 1997  (% style="background-color:yellow" %)**4  < - ->  3.3V  < - ->  Blue**
1998 1998  
1999 1999  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -2000,9 +2000,13 @@
2000 2000  
2001 2001  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
2002 2002  
2003 -Use after connection， ground wire（1 < - -> GND  < - ->  Black） for 1s and then pull it out.Then restart the device.
1974 +[[image:image-20220620160241-6.jpeg||height="428" width="571"]]
2004 2004  
1976 +Press reset after connecting the 4boot cable to enter the download mode.
2005 2005  
1978 +[[image:image-20220620160516-7.png||height="435" width="435"]]
1979 +
1980 +
2006 2006  (% _mstmutation="1" %)**Step1**(%%): Install TremoProgrammer  first.
2007 2007  
2008 2008  [[image:image-20220615170542-5.png]]
... ... @@ -2020,7 +2020,7 @@
2020 2020  
2021 2021  (% _istranslated="1" _mstmutation="1" %)**Step4：**(%%)Click Start
2022 2022  
2023 -
1998 +[[image:image-20220620160723-8.png]]
2024 2024  )))
2025 2025  
2026 2026  (% _mstvisible="1" %)
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2146 2146  
2147 2147  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor||_msthash="504975" _msttexthash="51420512"]]
2148 2148  
2149 -
2150 2150  = (% _msthash="216320" _msttexthash="10002096" %)10. (%%)FCC Warning =
2151 2151  
2152 2152  (% _mstvisible="1" %)
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