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Last modified by Mengting Qiu on 2025/07/03 14:48
From version 148.12
edited by Xiaoling
on 2022/06/17 15:06
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To version 168.5
edited by Xiaoling
on 2022/06/21 09:29
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 +24,27 @@
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  
... ... @@ -65,17 +65,17 @@
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  
80 80  
81 81  
... ... @@ -368,9 +368,6 @@
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  
... ... @@ -407,9 +407,6 @@
407 407  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
408 408  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
409 409  
410 -
411 -
412 -
413 413  (% _mstvisible="1" %)
414 414  === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
415 415  
... ... @@ -425,9 +425,6 @@
425 425  (% _mstvisible="1" %)
426 426  * Temperature:  (0xF5C6-65536)/100=-26.18℃
427 427  
428 -
429 -
430 -
431 431  (% _mstvisible="1" %)
432 432  === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
433 433  
... ... @@ -483,7 +483,6 @@
483 483  )))
484 484  
485 485  
486 -
487 487  (% _mstvisible="1" %)
488 488  ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
489 489  
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604 604  * 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.
605 605  * 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)
606 606  
584 +==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable)(%%) ====
585 +
586 +In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
587 +
588 +be used to power the external ADC sensor; user can control the power on time for this
589 +
590 +sensor by setting:
591 +
592 +AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
593 +
594 +
595 +
607 607  (% _mstvisible="1" %)
608 608  == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
609 609  
... ... @@ -1164,6 +1164,17 @@
1164 1164  = (% _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(%%) =
1165 1165  
1166 1166  (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1156 +== (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E2 Extension Cable(%%) ==
1157 +
1158 +[[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1159 +
1160 +1m long breakout cable for LHT65N
1161 +
1162 +[[image:image-20220619092421-3.png||height="371" width="529"]]
1163 +
1164 +
1165 +
1166 +(% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1167 1167  == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E3 Temperature Probe(%%) ==
1168 1168  
1169 1169  (% _mstvisible="1" %)
... ... @@ -1656,6 +1656,7 @@
1656 1656  (% _mstvisible="1" %)
1657 1657  [[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"]]
1658 1658  
1659 +
1659 1659  (% _mstvisible="1" %)
1660 1660  == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1661 1661  
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1918 1918  (% _msthash="506131" _msttexthash="14585714" %)
1919 1919  AT commands：
1920 1920  
1921 -[[image:image-20220615092034-1.png||_mstalt="428870"]]
1922 +[[image:image-20220620153708-1.png||height="603" width="723"]]
1922 1922  
1923 1923  (% _msthash="506132" _msttexthash="337922" %)
1924 1924  Downlink commands:
... ... @@ -1927,13 +1927,13 @@
1927 1927  (% _msthash="506133" _msttexthash="33046" %)
1928 1928  **TTN:**
1929 1929  
1930 -[[image:image-20220615092124-2.png||_mstalt="429221" height="843" width="893"]]
1931 +[[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1931 1931  
1932 1932  
1933 1933  (% _msthash="506134" _msttexthash="11113791" %)
1934 1934  **Helium：**
1935 1935  
1936 -[[image:image-20220615092551-3.png||_mstalt="430794" height="556" width="1097"]]
1937 +[[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1937 1937  
1938 1938  
1939 1939  (% _msthash="506135" _msttexthash="4159844" %)
... ... @@ -1941,13 +1941,13 @@
1941 1941  
1942 1942  [[image:image-20220615094850-6.png||_mstalt="433082"]]
1943 1943  
1944 -[[image:image-20220615094904-7.png||_mstalt="433485" height="329" width="1067"]]
1945 +[[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1945 1945  
1946 1946  
1947 1947  (% _msthash="506136" _msttexthash="39286" %)
1948 1948  **Aws:**
1949 1949  
1950 -[[image:image-20220615092939-4.png||_mstalt="434460" height="532" width="1062"]]
1951 +[[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1951 1951  
1952 1952  
1953 1953  == (% _msthash="1220570" _msttexthash="33199257" %)6.3 How to change the uplink interval？(%%) ==
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1960 1960  
1961 1961  [[image:image-20220615153355-1.png]]
1962 1962  
1964 +[[image:image-20220620154900-5.jpeg||height="427" width="570"]]
1965 +
1963 1963  (% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1964 1964  
1965 1965  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -1966,9 +1966,10 @@
1966 1966  
1967 1967  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1968 1968  
1969 -[[image:image-20220615153914-2.jpeg||height="608" width="456"]]
1970 1970  
1973 +To switch from download mode to command mode, press reset key
1971 1971  
1975 +
1972 1972  (((
1973 1973  (% _msthash="736728" _msttexthash="67213055" %)
1974 1974  (((
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1980 1980  (% _msthash="736729" _msttexthash="1907009" %)
1981 1981  Input password and ATZ to activate LHT65N,As shown below:
1982 1982  
1983 -[[image:image-20220615154519-3.png]]
1987 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1984 1984  
1985 1985  
1986 1986  )))
1987 1987  
1988 -
1989 1989  == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1990 1990  
1994 +
1991 1991  [[image:image-20220615153355-1.png]]
1992 1992  
1997 +(% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1998 +
1993 1993  (% style="background-color:yellow" %)**4  < - ->  3.3V  < - ->  Blue**
1994 1994  
1995 1995  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -1996,9 +1996,13 @@
1996 1996  
1997 1997  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1998 1998  
1999 -Use after connection， ground wire（1 < - -> GND  < - ->  Black） for 1s and then pull it out.Then restart the device.
2005 +[[image:image-20220620160241-6.jpeg||height="428" width="571"]]
2000 2000  
2007 +Press reset after connecting the 4boot cable to enter the download mode.
2001 2001  
2009 +[[image:image-20220620160516-7.png||height="435" width="435"]]
2010 +
2011 +
2002 2002  (% _mstmutation="1" %)**Step1**(%%): Install TremoProgrammer  first.
2003 2003  
2004 2004  [[image:image-20220615170542-5.png]]
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2016 2016  
2017 2017  (% _istranslated="1" _mstmutation="1" %)**Step4：**(%%)Click Start
2018 2018  
2019 -
2029 +[[image:image-20220620160723-8.png]]
2020 2020  )))
2021 2021  
2022 2022  (% _mstvisible="1" %)
... ... @@ -2088,8 +2088,6 @@
2088 2088  (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2089 2089  (% style="color:red" %)**E3**(%%): External Temperature Probe
2090 2090  
2091 -
2092 -(% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2093 2093  
2094 2094  )))
2095 2095  
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2138 2138  (% _mstvisible="3" %)
2139 2139  (((
2140 2140  
2141 -
2142 -(% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
2143 -
2144 2144  )))
2145 2145  
2146 2146  = (% _msthash="184782" _msttexthash="16007771" %)9. Reference material(%%) =
... ... @@ -2147,8 +2147,6 @@
2147 2147  
2148 2148  * [[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"]]
2149 2149  
2150 -
2151 -
2152 2152  = (% _msthash="216320" _msttexthash="10002096" %)10. (%%)FCC Warning =
2153 2153  
2154 2154  (% _mstvisible="1" %)
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