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Last modified by Mengting Qiu on 2025/07/03 14:48
From version 148.6
edited by Xiaoling
on 2022/06/17 15:02
Change comment: There is no comment for this version
To version 168.4
edited by Xiaoling
on 2022/06/21 09:28
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 24  (% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
25 -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" %)**.**
26 -)))
25 +
27 27  
28 -(% _mstvisible="1" %)
29 -(((
30 -(% _msthash="506052" _msttexthash="66005810" _mstvisible="2" %)
31 -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.
32 -)))
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.
33 33  
34 -(% _mstvisible="1" %)
35 -(((
36 -(% _msthash="506053" _msttexthash="4298047" _mstvisible="2" %)
37 -LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
38 -)))
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.
39 39  
40 -(% _mstvisible="1" %)
41 -(((
42 -(% _msthash="506054" _msttexthash="6016374" _mstvisible="2" %)
43 -LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
44 -)))
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.
45 45  
46 -(% _mstvisible="1" %)
47 -(((
48 -(% _msthash="506055" _msttexthash="17023136" _mstvisible="2" %)
49 -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 is fully compatible with LoRaWAN v1.0.3 protocol, it can work with standard LoRaWAN gateway.
34 +
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]]
50 50  )))
51 51  
52 52  (% _mstvisible="1" %)
53 53  (((
54 54  (% _msthash="506056" _msttexthash="5557097" _mstvisible="2" %)
55 -*The actual battery life depends on how often to send data, please see the battery analyzer chapter.
56 -
57 -(% _msthash="506056" _msttexthash="5557097" _mstvisible="2" %)
58 58  
59 59  )))
60 60  
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74 74  * Tri-color LED to indicate working status
75 75  * Datalog feature
76 76  
77 -
78 78  (% _mstvisible="1" %)
79 79  == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) ==
80 80  
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363 363  * The 7th byte (EXT #): defines the external sensor model.
364 364  * 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.)
365 365  
366 -
367 367  (% _mstvisible="1" %)
368 368  === (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
369 369  
... ... @@ -400,7 +400,6 @@
400 400  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
401 401  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
402 402  
403 -
404 404  (% _mstvisible="1" %)
405 405  === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
406 406  
... ... @@ -471,7 +471,6 @@
471 471  )))
472 472  
473 473  
474 -
475 475  (% _mstvisible="1" %)
476 476  ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
477 477  
... ... @@ -592,6 +592,18 @@
592 592  * 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.
593 593  * 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)
594 594  
581 +==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable)(%%) ====
582 +
583 +In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
584 +
585 +be used to power the external ADC sensor; user can control the power on time for this
586 +
587 +sensor by setting:
588 +
589 +AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
590 +
591 +
592 +
595 595  (% _mstvisible="1" %)
596 596  == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
597 597  
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1152 1152  = (% _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(%%) =
1153 1153  
1154 1154  (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1153 +== (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E2 Extension Cable(%%) ==
1154 +
1155 +[[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1156 +
1157 +1m long breakout cable for LHT65N
1158 +
1159 +[[image:image-20220619092421-3.png||height="371" width="529"]]
1160 +
1161 +
1162 +
1163 +(% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1155 1155  == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E3 Temperature Probe(%%) ==
1156 1156  
1157 1157  (% _mstvisible="1" %)
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1644 1644  (% _mstvisible="1" %)
1645 1645  [[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"]]
1646 1646  
1656 +
1647 1647  (% _mstvisible="1" %)
1648 1648  == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1649 1649  
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1906 1906  (% _msthash="506131" _msttexthash="14585714" %)
1907 1907  AT commands：
1908 1908  
1909 -[[image:image-20220615092034-1.png||_mstalt="428870"]]
1919 +[[image:image-20220620153708-1.png||height="603" width="723"]]
1910 1910  
1911 1911  (% _msthash="506132" _msttexthash="337922" %)
1912 1912  Downlink commands:
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1915 1915  (% _msthash="506133" _msttexthash="33046" %)
1916 1916  **TTN:**
1917 1917  
1918 -[[image:image-20220615092124-2.png||_mstalt="429221" height="843" width="893"]]
1928 +[[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1919 1919  
1920 1920  
1921 1921  (% _msthash="506134" _msttexthash="11113791" %)
1922 1922  **Helium：**
1923 1923  
1924 -[[image:image-20220615092551-3.png||_mstalt="430794" height="556" width="1097"]]
1934 +[[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1925 1925  
1926 1926  
1927 1927  (% _msthash="506135" _msttexthash="4159844" %)
... ... @@ -1929,13 +1929,13 @@
1929 1929  
1930 1930  [[image:image-20220615094850-6.png||_mstalt="433082"]]
1931 1931  
1932 -[[image:image-20220615094904-7.png||_mstalt="433485" height="329" width="1067"]]
1942 +[[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1933 1933  
1934 1934  
1935 1935  (% _msthash="506136" _msttexthash="39286" %)
1936 1936  **Aws:**
1937 1937  
1938 -[[image:image-20220615092939-4.png||_mstalt="434460" height="532" width="1062"]]
1948 +[[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1939 1939  
1940 1940  
1941 1941  == (% _msthash="1220570" _msttexthash="33199257" %)6.3 How to change the uplink interval？(%%) ==
... ... @@ -1948,6 +1948,8 @@
1948 1948  
1949 1949  [[image:image-20220615153355-1.png]]
1950 1950  
1961 +[[image:image-20220620154900-5.jpeg||height="427" width="570"]]
1962 +
1951 1951  (% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1952 1952  
1953 1953  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -1954,9 +1954,10 @@
1954 1954  
1955 1955  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1956 1956  
1957 -[[image:image-20220615153914-2.jpeg||height="608" width="456"]]
1958 1958  
1970 +To switch from download mode to command mode, press reset key
1959 1959  
1972 +
1960 1960  (((
1961 1961  (% _msthash="736728" _msttexthash="67213055" %)
1962 1962  (((
... ... @@ -1968,16 +1968,18 @@
1968 1968  (% _msthash="736729" _msttexthash="1907009" %)
1969 1969  Input password and ATZ to activate LHT65N,As shown below:
1970 1970  
1971 -[[image:image-20220615154519-3.png]]
1984 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1972 1972  
1973 1973  
1974 1974  )))
1975 1975  
1976 -
1977 1977  == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1978 1978  
1991 +
1979 1979  [[image:image-20220615153355-1.png]]
1980 1980  
1994 +(% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1995 +
1981 1981  (% style="background-color:yellow" %)**4  < - ->  3.3V  < - ->  Blue**
1982 1982  
1983 1983  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
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1984 1984  
1985 1985  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1986 1986  
1987 -Use after connection， ground wire（1 < - -> GND  < - ->  Black） for 1s and then pull it out.Then restart the device.
2002 +[[image:image-20220620160241-6.jpeg||height="428" width="571"]]
1988 1988  
2004 +Press reset after connecting the 4boot cable to enter the download mode.
1989 1989  
2006 +[[image:image-20220620160516-7.png||height="435" width="435"]]
2007 +
2008 +
1990 1990  (% _mstmutation="1" %)**Step1**(%%): Install TremoProgrammer  first.
1991 1991  
1992 1992  [[image:image-20220615170542-5.png]]
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2004 2004  
2005 2005  (% _istranslated="1" _mstmutation="1" %)**Step4：**(%%)Click Start
2006 2006  
2007 -
2026 +[[image:image-20220620160723-8.png]]
2008 2008  )))
2009 2009  
2010 2010  (% _mstvisible="1" %)
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2076 2076  (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2077 2077  (% style="color:red" %)**E3**(%%): External Temperature Probe
2078 2078  
2079 -
2080 -(% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2081 2081  
2082 2082  )))
2083 2083  
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2101 2101  )))
2102 2102  * (% _mstvisible="3" %)
2103 2103  (((
2104 -(% _msthash="903337" _msttexthash="242567" _mstvisible="4" %)
2105 -Program cable x 1
2106 -)))
2107 -* (% _mstvisible="3" %)
2108 -(((
2109 2109  (% _msthash="903338" _msttexthash="544167" _mstvisible="4" %)
2110 2110  Optional external sensor
2111 2111  )))
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2131 2131  (% _mstvisible="3" %)
2132 2132  (((
2133 2133  
2134 -
2135 -(% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
2136 -
2137 2137  )))
2138 2138  
2139 2139  = (% _msthash="184782" _msttexthash="16007771" %)9. Reference material(%%) =
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