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Last modified by Mengting Qiu on 2025/07/03 14:48
From version 148.13
edited by Xiaoling
on 2022/06/17 15:06
Change comment: There is no comment for this version
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  
... ... @@ -77,9 +77,6 @@
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  
... ... @@ -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  
... ... @@ -437,9 +437,6 @@
437 437  (% _mstvisible="1" %)
438 438  * Humidity:    0x025C/10=60.4%
439 439  
440 -
441 -
442 -
443 443  (% _mstvisible="1" %)
444 444  === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
445 445  
... ... @@ -486,7 +486,6 @@
486 486  )))
487 487  
488 488  
489 -
490 490  (% _mstvisible="1" %)
491 491  ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
492 492  
... ... @@ -607,6 +607,18 @@
607 607  * 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.
608 608  * 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)
609 609  
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 +
610 610  (% _mstvisible="1" %)
611 611  == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
612 612  
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1167 1167  = (% _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(%%) =
1168 1168  
1169 1169  (% _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;" %)
1170 1170  == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E3 Temperature Probe(%%) ==
1171 1171  
1172 1172  (% _mstvisible="1" %)
... ... @@ -1659,6 +1659,7 @@
1659 1659  (% _mstvisible="1" %)
1660 1660  [[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"]]
1661 1661  
1662 +
1662 1662  (% _mstvisible="1" %)
1663 1663  == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1664 1664  
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1921 1921  (% _msthash="506131" _msttexthash="14585714" %)
1922 1922  AT commands：
1923 1923  
1924 -[[image:image-20220615092034-1.png||_mstalt="428870"]]
1925 +[[image:image-20220620153708-1.png||height="603" width="723"]]
1925 1925  
1926 1926  (% _msthash="506132" _msttexthash="337922" %)
1927 1927  Downlink commands:
... ... @@ -1930,13 +1930,13 @@
1930 1930  (% _msthash="506133" _msttexthash="33046" %)
1931 1931  **TTN:**
1932 1932  
1933 -[[image:image-20220615092124-2.png||_mstalt="429221" height="843" width="893"]]
1934 +[[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1934 1934  
1935 1935  
1936 1936  (% _msthash="506134" _msttexthash="11113791" %)
1937 1937  **Helium：**
1938 1938  
1939 -[[image:image-20220615092551-3.png||_mstalt="430794" height="556" width="1097"]]
1940 +[[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1940 1940  
1941 1941  
1942 1942  (% _msthash="506135" _msttexthash="4159844" %)
... ... @@ -1944,13 +1944,13 @@
1944 1944  
1945 1945  [[image:image-20220615094850-6.png||_mstalt="433082"]]
1946 1946  
1947 -[[image:image-20220615094904-7.png||_mstalt="433485" height="329" width="1067"]]
1948 +[[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1948 1948  
1949 1949  
1950 1950  (% _msthash="506136" _msttexthash="39286" %)
1951 1951  **Aws:**
1952 1952  
1953 -[[image:image-20220615092939-4.png||_mstalt="434460" height="532" width="1062"]]
1954 +[[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1954 1954  
1955 1955  
1956 1956  == (% _msthash="1220570" _msttexthash="33199257" %)6.3 How to change the uplink interval？(%%) ==
... ... @@ -1963,6 +1963,8 @@
1963 1963  
1964 1964  [[image:image-20220615153355-1.png]]
1965 1965  
1967 +[[image:image-20220620154900-5.jpeg||height="427" width="570"]]
1968 +
1966 1966  (% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1967 1967  
1968 1968  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -1969,9 +1969,10 @@
1969 1969  
1970 1970  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1971 1971  
1972 -[[image:image-20220615153914-2.jpeg||height="608" width="456"]]
1973 1973  
1976 +To switch from download mode to command mode, press reset key
1974 1974  
1978 +
1975 1975  (((
1976 1976  (% _msthash="736728" _msttexthash="67213055" %)
1977 1977  (((
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1983 1983  (% _msthash="736729" _msttexthash="1907009" %)
1984 1984  Input password and ATZ to activate LHT65N,As shown below:
1985 1985  
1986 -[[image:image-20220615154519-3.png]]
1990 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1987 1987  
1988 1988  
1989 1989  )))
1990 1990  
1991 -
1992 1992  == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1993 1993  
1997 +
1994 1994  [[image:image-20220615153355-1.png]]
1995 1995  
2000 +(% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
2001 +
1996 1996  (% style="background-color:yellow" %)**4  < - ->  3.3V  < - ->  Blue**
1997 1997  
1998 1998  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -1999,9 +1999,13 @@
1999 1999  
2000 2000  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
2001 2001  
2002 -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"]]
2003 2003  
2010 +Press reset after connecting the 4boot cable to enter the download mode.
2004 2004  
2012 +[[image:image-20220620160516-7.png||height="435" width="435"]]
2013 +
2014 +
2005 2005  (% _mstmutation="1" %)**Step1**(%%): Install TremoProgrammer  first.
2006 2006  
2007 2007  [[image:image-20220615170542-5.png]]
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2019 2019  
2020 2020  (% _istranslated="1" _mstmutation="1" %)**Step4：**(%%)Click Start
2021 2021  
2022 -
2032 +[[image:image-20220620160723-8.png]]
2023 2023  )))
2024 2024  
2025 2025  (% _mstvisible="1" %)
... ... @@ -2091,8 +2091,6 @@
2091 2091  (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2092 2092  (% style="color:red" %)**E3**(%%): External Temperature Probe
2093 2093  
2094 -
2095 -(% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2096 2096  
2097 2097  )))
2098 2098  
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2141 2141  (% _mstvisible="3" %)
2142 2142  (((
2143 2143  
2144 -
2145 -(% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
2146 -
2147 2147  )))
2148 2148  
2149 2149  = (% _msthash="184782" _msttexthash="16007771" %)9. Reference material(%%) =
... ... @@ -2150,8 +2150,6 @@
2150 2150  
2151 2151  * [[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"]]
2152 2152  
2153 -
2154 -
2155 2155  = (% _msthash="216320" _msttexthash="10002096" %)10. (%%)FCC Warning =
2156 2156  
2157 2157  (% _mstvisible="1" %)
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