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Last modified by Xiaoling on 2023/07/18 10:12
From version 170.24
edited by Xiaoling
on 2022/06/22 11:15
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

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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.
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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 ==
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253 253  
254 254  
255 255  
243 +
256 256  === 2.4.1 Decoder in TTN V3 ===
257 257  
258 258  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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284 284  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
285 285  
286 286  
275 +
287 287  === 2.4.3 Built-in Temperature ===
288 288  
289 289  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
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294 294  
295 295  * Temperature:  (0xF5C6-65536)/100=-26.18℃
296 296  
286 +
297 297  === 2.4.4 Built-in Humidity ===
298 298  
299 299  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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300 300  
301 301  * Humidity:    0x025C/10=60.4%
302 302  
293 +
303 303  === 2.4.5 Ext # ===
304 304  
305 305  Bytes for External Sensor:
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453 453  * 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)
454 454  
455 455  
447 +
456 456  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
457 457  
458 458  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
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529 529  
530 530  
531 531  
524 +
532 532  === 2.6.2 Unix TimeStamp ===
533 533  
534 534  
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918 918  
919 919  
920 920  
914 +
921 921  == 2.9 installation ==
922 922  
923 923  (% _mstvisible="1" %)
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954 954  
955 955  
956 956  
951 +
957 957  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
958 958  
959 959  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
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997 997  
998 998  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
999 999  
995 +
1000 1000  == 4.2 Set External Sensor Mode ==
1001 1001  
1002 1002  Feature: Change External Sensor Mode.
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1019 1019  * 0xA20702003c: Same as AT+SETCNT=60
1020 1020  
1021 1021  
1018 +
1022 1022  == 4.3 Enable/Disable uplink Temperature probe ID ==
1023 1023  
1024 1024  (((
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1047 1047  * **0xA801**     **~-~->** AT+PID=1
1048 1048  
1049 1049  
1047 +
1050 1050  == 4.4 Set Password ==
1051 1051  
1052 1052  Feature: Set device password, max 9 digits
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1095 1095  
1096 1096  
1097 1097  
1096 +
1098 1098  == 4.7 Set system time ==
1099 1099  
1100 1100  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
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1193 1193  
1194 1194  
1195 1195  
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  
1214 1214  
1216 +
1215 1215  = 5. Battery & How to replace =
1216 1216  
1217 1217  == 5.1 Battery Type ==
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1619 1619  
1620 1620  
1621 1621  
1624 +
1622 1622  = 8. Packing Info =
1623 1623  
1624 1624  
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1625 1625  **Package Includes**:
1626 1626  
1627 1627  * LHT65N Temperature & Humidity Sensor x 1
1628 -* Optional external sensor
1629 1629  
1632 +*Optional external sensor
1633 +
1634 +
1630 1630  **Dimension and weight**:
1631 1631  
1632 1632  * Device Size:  10 x 10 x 3.5 cm
1638 +
1633 1633  * Device Weight: 120.5g
1634 1634  
1635 1635  
1642 +
1636 1636  = 9. Reference material =
1637 1637  
1638 1638  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1639 1639  
1647 +
1640 1640  = 10. FCC Warning =
1641 1641  
1642 1642  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions: