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Last modified by Xiaoling on 2023/07/18 10:12
From version 261.2
edited by Xiaoling
on 2023/07/17 15:24
Change comment: There is no comment for this version
To version 259.1
edited by Xiaoling
on 2023/07/17 15:14
Change comment: Uploaded new attachment "image-20230717151424-9.png", version {1}

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1 1  (% style="text-align:center" %)
2 -[[image:image-20230717152014-10.png||height="575" width="339"]]
2 +[[image:image-20230717144215-1.png||height="438" width="292"]]
3 3  
4 4  
5 5  
6 +
6 6  **Table of Contents:**
7 7  
8 8  {{toc/}}
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13 13  
14 14  = 1. Introduction =
15 15  
16 -== 1.1 What is LHT65N LoRaWAN (% style="display:none" %) (%%)Temperature & Humidity Sensor ==
17 +== 1.1 What is LHT65N Temperature & Humidity Sensor ==
17 17  
18 18  
19 19  (((
20 -The Dragino LHT65N (% style="display:none" %) (%%)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.**
21 +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.**
21 21  )))
22 22  
23 23  (((
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56 56  * Datalog feature (Max 3328 records)
57 57  
58 58  
59 -
60 60  == 1.3 Specification ==
61 61  
62 62  
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82 82  * Operating Range: -55 °C ~~ 125 °C
83 83  
84 84  
85 -
86 86  = 2. Connect LHT65N to IoT Server =
87 87  
88 88  == 2.1 How does LHT65N work? ==
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246 246  * The 8^^th^^ ~~ 11^^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.)
247 247  
248 248  
249 -
250 250  === 2.4.1 Decoder in TTN V3 ===
251 251  
252 252  
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290 290  * Battery Voltage =0xCBA4&0x3FFF=0x0BA4=2980mV
291 291  
292 292  
293 -
294 294  === 2.4.3 Built-in Temperature ===
295 295  
296 296  
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303 303  * Temperature:  (0xF5C6-65536)/100=-26.18℃
304 304  
305 305  
306 -
307 307  (% style="display:none" %)
308 308  
309 309  === 2.4.4 Built-in Humidity ===
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314 314  * Humidity:    0x025C/10=60.4%
315 315  
316 316  
317 -
318 318  (% style="display:none" %)
319 319  
320 320  === 2.4.5 Ext # ===
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364 364  Timestamp mode is designed for LHT65N with E3 probe, it will send the uplink payload with Unix timestamp. With the limitation of 11 bytes (max distance of AU915/US915/AS923 band), the time stamp mode will be lack of BAT voltage field, instead, it shows the battery status. The payload is as below:
365 365  )))
366 366  
362 +
367 367  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
368 368  |=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
369 369  **Size(bytes)**
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417 417  * (% style="color:blue" %)**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)
418 418  
419 419  
420 -
421 421  ==== 2.4.6.3 Ext~=6, ADC Sensor(use with E2 Cable) ====
422 422  
423 423  
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469 469  
470 470  ==== 2.4.6.4 Ext~=2 TMP117 Sensor((% style="display:none" %) (%%)Since Firmware v1.3)(% style="display:none" %) (%%) ====
471 471  
472 -[[image:image-20230717151328-8.png]]
467 +[[image:image-20230717145430-4.png||height="487" width="472"]]
473 473  
474 474  (% style="display:none" %) (%%)
475 475  
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480 480  [[image:image-20220906102307-7.png||_mstalt="430443"]]
481 481  
482 482  
483 -(% style="color:blue" %)**Interrupt Mode and Counting Mode:**(% style="color: blue; display: none" %)** **
478 +(% style="color:blue" %)**Interrupt Mode and Counting Mode:**
484 484  
485 485  The external cable NE2 can be use for MOD4 and MOD8
486 486  
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489 489  ==== 2.4.6.5 Ext~=11 SHT31 Sensor ((% style="display:none" %) (%%)Since Firmware v1.4.1) ====
490 490  
491 491  
487 +[[image:65N-E31F.jpg||height="454" width="459"]]
492 492  
493 -[[image:image-20230717151245-7.png]]
494 494  
495 495  (% style="color:blue" %)**Ext=11,Temperature & Humidity Sensor(SHT31)：**
496 496  
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603 603  Timestamp mode is designed for LHT65N with E2 probe, it will send the uplink payload with Unix timestamp. With the limitation of 11 bytes (max distance of AU915/US915/AS923 band), the time stamp mode will be lack of BAT voltage field, instead, it shows the battery status. The payload is as below:
604 604  )))
605 605  
601 +
606 606  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
607 607  |=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
608 608  **Size(bytes)**
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656 656  * (% style="color:blue" %)**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)
657 657  
658 658  
659 -
660 660  == 2.5 Show data on Datacake ==
661 661  
662 662  
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1074 1074  * For each success downlink, the PURPLE LED will blink once
1075 1075  
1076 1076  
1077 -
1078 1078  == 2.9 installation ==
1079 1079  
1080 1080  
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1116 1116  == 3.2 E3 Temperature Probe ==
1117 1117  
1118 1118  
1119 -[[image:image-20220515080154-4.png||_mstalt="434681" alt="photo-20220515080154-4.png" height="182" width="161"]] [[image:image-20230717152413-11.png||height="207" width="192"]](% style="display:none" %)
1113 +[[image:image-20220515080154-4.png||_mstalt="434681" alt="photo-20220515080154-4.png" height="182" width="161"]] [[image:image-20220515080330-5.png||_mstalt="428792" height="201" width="195"]]
1120 1120  
1121 1121  
1122 1122  Temperature sensor with 2 meters cable long
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1131 1131  == 3.3 E31F Temperature Probe ==
1132 1132  
1133 1133  
1134 -[[image:65N-E31F-1.jpg||height="169" width="170"]] [[image:image-20230717151424-9.png||height="221" width="204"]](% style="display:none" %)
1128 +[[image:65N-E31F-1.jpg||height="169" width="170"]] [[image:65N-E31F.jpg||height="196" width="198"]]
1135 1135  
1136 1136  
1137 1137  Temperature sensor with 1 meters cable long
1138 1138  
1139 -
1140 1140  **Built-in Temperature Sensor:**
1141 1141  
1142 1142  * Resolution: 0.01 °C
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1449 1449  
1450 1450  Feature: Clear flash storage for data log feature.
1451 1451  
1445 +
1452 1452  (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1453 1453  
1448 +
1454 1454  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:503px" %)
1455 1455  |(% style="background-color:#d9e2f3; color:#0070c0; width:157px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:137px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:209px" %)**Response**
1456 1456  |(% style="width:155px" %)AT+CLRDTA |(% style="width:134px" %)Clear date record|(% style="width:209px" %)(((
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