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Last modified by Mengting Qiu on 2025/07/03 14:48
From version 148.14
edited by Xiaoling
on 2022/06/17 15:06
Change comment: There is no comment for this version
To version 168.2
edited by Xiaoling
on 2022/06/21 09:22
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 **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 **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 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** 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>>path:#Battery]].
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  
... ... @@ -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  
... ... @@ -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  
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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)(%%) ====
610 610  
589 +In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
611 611  
591 +be used to power the external ADC sensor; user can control the power on time for this
612 612  
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 +
613 613  (% _mstvisible="1" %)
614 614  == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
615 615  
... ... @@ -1170,6 +1170,17 @@
1170 1170  = (% _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(%%) =
1171 1171  
1172 1172  (% _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;" %)
1173 1173  == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E3 Temperature Probe(%%) ==
1174 1174  
1175 1175  (% _mstvisible="1" %)
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1662 1662  (% _mstvisible="1" %)
1663 1663  [[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"]]
1664 1664  
1662 +
1665 1665  (% _mstvisible="1" %)
1666 1666  == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1667 1667  
... ... @@ -1924,7 +1924,7 @@
1924 1924  (% _msthash="506131" _msttexthash="14585714" %)
1925 1925  AT commands：
1926 1926  
1927 -[[image:image-20220615092034-1.png||_mstalt="428870"]]
1925 +[[image:image-20220620153708-1.png||height="603" width="723"]]
1928 1928  
1929 1929  (% _msthash="506132" _msttexthash="337922" %)
1930 1930  Downlink commands:
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1933 1933  (% _msthash="506133" _msttexthash="33046" %)
1934 1934  **TTN:**
1935 1935  
1936 -[[image:image-20220615092124-2.png||_mstalt="429221" height="843" width="893"]]
1934 +[[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1937 1937  
1938 1938  
1939 1939  (% _msthash="506134" _msttexthash="11113791" %)
1940 1940  **Helium：**
1941 1941  
1942 -[[image:image-20220615092551-3.png||_mstalt="430794" height="556" width="1097"]]
1940 +[[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1943 1943  
1944 1944  
1945 1945  (% _msthash="506135" _msttexthash="4159844" %)
... ... @@ -1947,13 +1947,13 @@
1947 1947  
1948 1948  [[image:image-20220615094850-6.png||_mstalt="433082"]]
1949 1949  
1950 -[[image:image-20220615094904-7.png||_mstalt="433485" height="329" width="1067"]]
1948 +[[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1951 1951  
1952 1952  
1953 1953  (% _msthash="506136" _msttexthash="39286" %)
1954 1954  **Aws:**
1955 1955  
1956 -[[image:image-20220615092939-4.png||_mstalt="434460" height="532" width="1062"]]
1954 +[[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1957 1957  
1958 1958  
1959 1959  == (% _msthash="1220570" _msttexthash="33199257" %)6.3 How to change the uplink interval？(%%) ==
... ... @@ -1966,6 +1966,8 @@
1966 1966  
1967 1967  [[image:image-20220615153355-1.png]]
1968 1968  
1967 +[[image:image-20220620154900-5.jpeg||height="427" width="570"]]
1968 +
1969 1969  (% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1970 1970  
1971 1971  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -1972,9 +1972,10 @@
1972 1972  
1973 1973  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1974 1974  
1975 -[[image:image-20220615153914-2.jpeg||height="608" width="456"]]
1976 1976  
1976 +To switch from download mode to command mode, press reset key
1977 1977  
1978 +
1978 1978  (((
1979 1979  (% _msthash="736728" _msttexthash="67213055" %)
1980 1980  (((
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1986 1986  (% _msthash="736729" _msttexthash="1907009" %)
1987 1987  Input password and ATZ to activate LHT65N,As shown below:
1988 1988  
1989 -[[image:image-20220615154519-3.png]]
1990 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1990 1990  
1991 1991  
1992 1992  )))
1993 1993  
1994 -
1995 1995  == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1996 1996  
1997 +
1997 1997  [[image:image-20220615153355-1.png]]
1998 1998  
2000 +(% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
2001 +
1999 1999  (% style="background-color:yellow" %)**4  < - ->  3.3V  < - ->  Blue**
2000 2000  
2001 2001  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -2002,9 +2002,13 @@
2002 2002  
2003 2003  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
2004 2004  
2005 -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"]]
2006 2006  
2010 +Press reset after connecting the 4boot cable to enter the download mode.
2007 2007  
2012 +[[image:image-20220620160516-7.png||height="435" width="435"]]
2013 +
2014 +
2008 2008  (% _mstmutation="1" %)**Step1**(%%): Install TremoProgrammer  first.
2009 2009  
2010 2010  [[image:image-20220615170542-5.png]]
... ... @@ -2022,7 +2022,7 @@
2022 2022  
2023 2023  (% _istranslated="1" _mstmutation="1" %)**Step4：**(%%)Click Start
2024 2024  
2025 -
2032 +[[image:image-20220620160723-8.png]]
2026 2026  )))
2027 2027  
2028 2028  (% _mstvisible="1" %)
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2094 2094  (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2095 2095  (% style="color:red" %)**E3**(%%): External Temperature Probe
2096 2096  
2097 -
2098 -(% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2099 2099  
2100 2100  )))
2101 2101  
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2144 2144  (% _mstvisible="3" %)
2145 2145  (((
2146 2146  
2147 -
2148 -(% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
2149 -
2150 2150  )))
2151 2151  
2152 2152  = (% _msthash="184782" _msttexthash="16007771" %)9. Reference material(%%) =
... ... @@ -2153,8 +2153,6 @@
2153 2153  
2154 2154  * [[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"]]
2155 2155  
2156 -
2157 -
2158 2158  = (% _msthash="216320" _msttexthash="10002096" %)10. (%%)FCC Warning =
2159 2159  
2160 2160  (% _mstvisible="1" %)
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