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Last modified by Mengting Qiu on 2025/07/03 14:48
From version 148.10
edited by Xiaoling
on 2022/06/17 15:06
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To version 168.3
edited by Xiaoling
on 2022/06/21 09:27
Change comment: There is no comment for this version

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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
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  (((
... ... @@ -24,40 +24,33 @@
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 -)))
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 -)))
30 +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.
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 -)))
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.
33 +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.
34 +
35 +
36 +LHT52 is fully compatible with LoRaWAN v1.0.3 protocol, it can work with standard LoRaWAN gateway.
37 +
38 +
39 +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.
40 +
41 +
42 +LHT52 supports**(%%) temperature alarm feature**. It can uplink alarm in a short interval while temperature exceeds preset limits.
43 +
44 +
45 +*Battery life depends how often to send data, please see [[battery analyzer>>||anchor="H4.2A0PowerConsumptionAnalyze"]].
46 +
47 +(% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
48 +[[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  
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77 77  * Tri-color LED to indicate working status
78 78  * Datalog feature
79 79  
80 -
81 -
82 -
83 83  (% _mstvisible="1" %)
84 84  == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) ==
85 85  
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368 368  * The 7th byte (EXT #): defines the external sensor model.
369 369  * The 8(% _msthash="734578" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) ~~ 11(% _msthash="734579" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.)
370 370  
371 -
372 -
373 -
374 374  (% _mstvisible="1" %)
375 375  === (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
376 376  
... ... @@ -477,7 +477,6 @@
477 477  )))
478 478  
479 479  
480 -
481 481  (% _mstvisible="1" %)
482 482  ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
483 483  
... ... @@ -598,6 +598,18 @@
598 598  * 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.
599 599  * 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)
600 600  
587 +==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable)(%%) ====
588 +
589 +In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
590 +
591 +be used to power the external ADC sensor; user can control the power on time for this
592 +
593 +sensor by setting:
594 +
595 +AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
596 +
597 +
598 +
601 601  (% _mstvisible="1" %)
602 602  == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
603 603  
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1158 1158  = (% _msthash="401388" _msttexthash="566956" _mstvisible="3" %)3. S(% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)ensors(% _msthash="401388" _msttexthash="40417" _mstvisible="3" %) and A(% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)ccessories(%%) =
1159 1159  
1160 1160  (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1159 +== (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E2 Extension Cable(%%) ==
1160 +
1161 +[[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1162 +
1163 +1m long breakout cable for LHT65N
1164 +
1165 +[[image:image-20220619092421-3.png||height="371" width="529"]]
1166 +
1167 +
1168 +
1169 +(% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1161 1161  == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E3 Temperature Probe(%%) ==
1162 1162  
1163 1163  (% _mstvisible="1" %)
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1650 1650  (% _mstvisible="1" %)
1651 1651  [[image:image-20220515075440-2.png||_mstalt="429546" _mstvisible="3" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" _mstvisible="3" height="193" width="257"]]
1652 1652  
1662 +
1653 1653  (% _mstvisible="1" %)
1654 1654  == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1655 1655  
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1912 1912  (% _msthash="506131" _msttexthash="14585714" %)
1913 1913  AT commands：
1914 1914  
1915 -[[image:image-20220615092034-1.png||_mstalt="428870"]]
1925 +[[image:image-20220620153708-1.png||height="603" width="723"]]
1916 1916  
1917 1917  (% _msthash="506132" _msttexthash="337922" %)
1918 1918  Downlink commands:
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1921 1921  (% _msthash="506133" _msttexthash="33046" %)
1922 1922  **TTN:**
1923 1923  
1924 -[[image:image-20220615092124-2.png||_mstalt="429221" height="843" width="893"]]
1934 +[[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1925 1925  
1926 1926  
1927 1927  (% _msthash="506134" _msttexthash="11113791" %)
1928 1928  **Helium：**
1929 1929  
1930 -[[image:image-20220615092551-3.png||_mstalt="430794" height="556" width="1097"]]
1940 +[[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1931 1931  
1932 1932  
1933 1933  (% _msthash="506135" _msttexthash="4159844" %)
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1935 1935  
1936 1936  [[image:image-20220615094850-6.png||_mstalt="433082"]]
1937 1937  
1938 -[[image:image-20220615094904-7.png||_mstalt="433485" height="329" width="1067"]]
1948 +[[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1939 1939  
1940 1940  
1941 1941  (% _msthash="506136" _msttexthash="39286" %)
1942 1942  **Aws:**
1943 1943  
1944 -[[image:image-20220615092939-4.png||_mstalt="434460" height="532" width="1062"]]
1954 +[[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1945 1945  
1946 1946  
1947 1947  == (% _msthash="1220570" _msttexthash="33199257" %)6.3 How to change the uplink interval？(%%) ==
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1954 1954  
1955 1955  [[image:image-20220615153355-1.png]]
1956 1956  
1967 +[[image:image-20220620154900-5.jpeg||height="427" width="570"]]
1968 +
1957 1957  (% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1958 1958  
1959 1959  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -1960,9 +1960,10 @@
1960 1960  
1961 1961  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1962 1962  
1963 -[[image:image-20220615153914-2.jpeg||height="608" width="456"]]
1964 1964  
1976 +To switch from download mode to command mode, press reset key
1965 1965  
1978 +
1966 1966  (((
1967 1967  (% _msthash="736728" _msttexthash="67213055" %)
1968 1968  (((
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1974 1974  (% _msthash="736729" _msttexthash="1907009" %)
1975 1975  Input password and ATZ to activate LHT65N,As shown below:
1976 1976  
1977 -[[image:image-20220615154519-3.png]]
1990 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1978 1978  
1979 1979  
1980 1980  )))
1981 1981  
1982 -
1983 1983  == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1984 1984  
1997 +
1985 1985  [[image:image-20220615153355-1.png]]
1986 1986  
2000 +(% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
2001 +
1987 1987  (% style="background-color:yellow" %)**4  < - ->  3.3V  < - ->  Blue**
1988 1988  
1989 1989  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -1990,9 +1990,13 @@
1990 1990  
1991 1991  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1992 1992  
1993 -Use after connection， ground wire（1 < - -> GND  < - ->  Black） for 1s and then pull it out.Then restart the device.
2008 +[[image:image-20220620160241-6.jpeg||height="428" width="571"]]
1994 1994  
2010 +Press reset after connecting the 4boot cable to enter the download mode.
1995 1995  
2012 +[[image:image-20220620160516-7.png||height="435" width="435"]]
2013 +
2014 +
1996 1996  (% _mstmutation="1" %)**Step1**(%%): Install TremoProgrammer  first.
1997 1997  
1998 1998  [[image:image-20220615170542-5.png]]
... ... @@ -2010,7 +2010,7 @@
2010 2010  
2011 2011  (% _istranslated="1" _mstmutation="1" %)**Step4：**(%%)Click Start
2012 2012  
2013 -
2032 +[[image:image-20220620160723-8.png]]
2014 2014  )))
2015 2015  
2016 2016  (% _mstvisible="1" %)
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2082 2082  (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2083 2083  (% style="color:red" %)**E3**(%%): External Temperature Probe
2084 2084  
2085 -
2086 -(% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2087 2087  
2088 2088  )))
2089 2089  
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2132 2132  (% _mstvisible="3" %)
2133 2133  (((
2134 2134  
2135 -
2136 -(% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
2137 -
2138 2138  )))
2139 2139  
2140 2140  = (% _msthash="184782" _msttexthash="16007771" %)9. Reference material(%%) =
... ... @@ -2141,8 +2141,6 @@
2141 2141  
2142 2142  * [[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"]]
2143 2143  
2144 -
2145 -
2146 2146  = (% _msthash="216320" _msttexthash="10002096" %)10. (%%)FCC Warning =
2147 2147  
2148 2148  (% _mstvisible="1" %)
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