Last modified by Xiaoling on 2023/07/18 10:12

From version 170.28
edited by Xiaoling
on 2022/06/22 11:17
Change comment: There is no comment for this version
To version 170.22
edited by Xiaoling
on 2022/06/22 11:07
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -18,30 +18,17 @@
18 18  
19 19  == 1.1 What is LHT65N Temperature & Humidity Sensor ==
20 20  
21 -
22 -(((
23 23  The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% style="color:#4f81bd" %)**Temperature Sensor.**
24 -)))
25 25  
26 -(((
27 27  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.
28 -)))
29 29  
30 -(((
31 31  LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
32 -)))
33 33  
34 -(((
35 35  LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
36 -)))
37 37  
38 -(((
39 39  LHT65N supports (% 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.
40 -)))
41 41  
42 -(((
43 43  *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
44 -)))
45 45  
46 46  
47 47  == 1.2 Features ==
... ... @@ -58,8 +58,6 @@
58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature
60 60  
61 -
62 -
63 63  == 1.3 Specification ==
64 64  
65 65  
... ... @@ -84,37 +84,23 @@
84 84  * ±2°C accuracy from -55°C to +125°C
85 85  * Operating Range: -55 °C ~~ 125 °C
86 86  
87 -
88 -
89 89  = 2. Connect LHT65N to IoT Server =
90 90  
91 91  == 2.1 How does LHT65N work? ==
92 92  
93 -(((
94 94  LHT65N is configured as LoRaWAN OTAA Class A mode by default. Each LHT65N is shipped with a worldwide unique set of OTAA keys. To use LHT65N in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N.
95 -)))
96 96  
97 -(((
98 98  If LHT65N is under the coverage of this LoRaWAN network. LHT65N can join the LoRaWAN network automatically. After successfully joining, LHT65N will start to measure environment temperature and humidity, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.
99 -)))
100 100  
101 101  
102 102  == 2.2 How to Activate LHT65N? ==
103 103  
104 -(((
105 105  The LHT65N has two working modes:
106 -)))
107 107  
108 -* (((
109 -(% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
110 -)))
111 -* (((
112 -(% style="color:blue" %)**Working Mode**(%%):  In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65N will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
113 -)))
85 +* (% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
86 +* (% style="color:blue" %)**Working Mode**(%%):  In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65N will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
114 114  
115 -(((
116 116  The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
117 -)))
118 118  
119 119  
120 120  [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
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267 267  * The 7th byte (EXT #): defines the external sensor model.
268 268  * 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.)
269 269  
241 +
242 +
243 +
270 270  === 2.4.1 Decoder in TTN V3 ===
271 271  
272 272  When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N decoder in TTNv3 for friendly reading.
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297 297  * BAT status=(0Xcba4>>14)&0xFF=11(B),very good
298 298  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
299 299  
274 +
275 +
300 300  === 2.4.3 Built-in Temperature ===
301 301  
302 302  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
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307 307  
308 308  * Temperature:  (0xF5C6-65536)/100=-26.18℃
309 309  
286 +
310 310  === 2.4.4 Built-in Humidity ===
311 311  
312 312  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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313 313  
314 314  * Humidity:    0x025C/10=60.4%
315 315  
293 +
316 316  === 2.4.5 Ext # ===
317 317  
318 318  Bytes for External Sensor:
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465 465  * 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.
466 466  * 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)
467 467  
446 +
447 +
468 468  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
469 469  
470 470  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
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539 539  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
540 540  1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after network recover.
541 541  
522 +
523 +
524 +
542 542  === 2.6.2 Unix TimeStamp ===
543 543  
544 544  
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926 926  * RED LED when external sensor is not connected
927 927  * For each success downlink, the PURPLE LED will blink once
928 928  
912 +
913 +
914 +
929 929  == 2.9 installation ==
930 930  
931 931  (% _mstvisible="1" %)
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960 960  * Operating Range: -40 ~~ 125 °C
961 961  * Working voltage 2.35v ~~ 5v
962 962  
949 +
950 +
951 +
963 963  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
964 964  
965 965  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
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1003 1003  
1004 1004  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1005 1005  
995 +
1006 1006  == 4.2 Set External Sensor Mode ==
1007 1007  
1008 1008  Feature: Change External Sensor Mode.
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1024 1024  
1025 1025  * 0xA20702003c: Same as AT+SETCNT=60
1026 1026  
1017 +
1018 +
1027 1027  == 4.3 Enable/Disable uplink Temperature probe ID ==
1028 1028  
1029 1029  (((
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1051 1051  * **0xA800**  **~-~->** AT+PID=0
1052 1052  * **0xA801**     **~-~->** AT+PID=1
1053 1053  
1046 +
1047 +
1054 1054  == 4.4 Set Password ==
1055 1055  
1056 1056  Feature: Set device password, max 9 digits
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1097 1097  
1098 1098  * There is no downlink command to set to Sleep mode.
1099 1099  
1094 +
1095 +
1096 +
1100 1100  == 4.7 Set system time ==
1101 1101  
1102 1102  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
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1193 1193  
1194 1194  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1195 1195  
1193 +
1194 +
1195 +
1196 1196  == 4.13 Auto Send None-ACK messages ==
1197 1197  
1198 1198  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
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1207 1207  (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 171px;" %)(% _msthash="1231737" _msttexthash="251862" _mstvisible="6" %)**Command Example**|=(% _mstvisible="4" style="width: 219px;" %)(% _msthash="1231738" _msttexthash="116025" _mstvisible="6" %)**Function**|=(% _mstvisible="4" style="width: 119px;" %)(% _msthash="1231739" _msttexthash="116831" _mstvisible="6" %)**Response**
1208 1208  (% _mstvisible="3" %)|(% _msthash="1231321" _msttexthash="130455" _mstvisible="4" style="width:171px" %)AT+PNACKMD=1|(% _msthash="1231322" _msttexthash="377026" _mstvisible="4" style="width:219px" %)Poll None-ACK message|(% _msthash="1231323" _msttexthash="14989" _mstvisible="4" style="width:119px" %)OK
1209 1209  
1210 +
1210 1210  (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1211 1211  
1212 1212  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1213 1213  
1215 +
1216 +
1214 1214  = 5. Battery & How to replace =
1215 1215  
1216 1216  == 5.1 Battery Type ==
... ... @@ -1616,6 +1616,9 @@
1616 1616  
1617 1617  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1618 1618  
1622 +
1623 +
1624 +
1619 1619  = 8. Packing Info =
1620 1620  
1621 1621  
... ... @@ -1622,17 +1622,23 @@
1622 1622  **Package Includes**:
1623 1623  
1624 1624  * LHT65N Temperature & Humidity Sensor x 1
1625 -* Optional external sensor
1626 1626  
1632 +*Optional external sensor
1633 +
1634 +
1627 1627  **Dimension and weight**:
1628 1628  
1629 1629  * Device Size:  10 x 10 x 3.5 cm
1638 +
1630 1630  * Device Weight: 120.5g
1631 1631  
1641 +
1642 +
1632 1632  = 9. Reference material =
1633 1633  
1634 1634  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1635 1635  
1647 +
1636 1636  = 10. FCC Warning =
1637 1637  
1638 1638  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions: