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Last modified by Xiaoling on 2023/07/18 10:12
From version 170.17
edited by Xiaoling
on 2022/06/22 10:08
Change comment: There is no comment for this version
To version 170.18
edited by Xiaoling
on 2022/06/22 10:31
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -46,9 +46,9 @@
46 46  * Datalog feature
47 47  
48 48  
49 -
50 50  == 1.3 Specification ==
51 51  
51 +
52 52  **Built-in Temperature Sensor:**
53 53  
54 54  * Resolution: 0.01 °C
... ... @@ -71,7 +71,6 @@
71 71  * Operating Range: -55 °C ~~ 125 °C
72 72  
73 73  
74 -
75 75  = 2. Connect LHT65N to IoT Server =
76 76  
77 77  == 2.1 How does LHT65N work? ==
... ... @@ -88,7 +88,6 @@
88 88  * (% 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.
89 89  * (% 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. 
90 90  
91 -
92 92  The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
93 93  
94 94  
... ... @@ -106,71 +106,73 @@
106 106  (% _mstvisible="1" class="wikigeneratedid" %)
107 107  [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
108 108  
109 -(% _msthash="315241" _msttexthash="10802155" _mstvisible="1" %)
107 +
108 +(((
110 110  Assume the LPS8N is already set to connect to [[TTN V3 network>>url:https://eu1.cloud.thethings.network||_mstvisible="2"]], So it provides network coverage for LHT65N. Next we need to add the LHT65N device in TTN V3:
110 +)))
111 111  
112 112  
113 -(% _mstvisible="1" %)
114 -=== (% _msthash="670592" _msttexthash="634075" _mstvisible="3" %)2.3.1 Step 1: Create Device n TTN(%%) ===
115 115  
116 -(% _msthash="315242" _msttexthash="1601782" _mstvisible="1" %)
114 +=== 2.3.1 Step 1: Create Device n TTN ===
115 +
116 +(((
117 117  Create a device in TTN V3 with the OTAA keys from LHT65N.
118 +)))
118 118  
119 -(% _msthash="315243" _msttexthash="3694444" _mstvisible="1" %)
120 +(((
120 120  Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
122 +)))
121 121  
122 -(% _mstvisible="1" %)
123 123  [[image:image-20220617150003-1.jpeg]]
124 124  
125 -(% _msthash="315244" _msttexthash="3659149" _mstvisible="1" %)
126 126  User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
127 127  
128 -(% _msthash="315245" _msttexthash="642889" _mstvisible="1" %)
129 129  Add APP EUI in the application.
130 130  
131 -(% _mstvisible="1" %)
130 +
132 132  [[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
133 133  
134 -(% _mstvisible="1" %)
133 +
135 135  [[image:image-20220522232932-4.png||_mstalt="430157" _mstvisible="3"]]
136 136  
137 -(% _mstvisible="1" %)
136 +
138 138  [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
139 139  
140 -(% _msthash="315246" _msttexthash="878800" _mstvisible="1" %)
139 +
141 141  Note: LHT65N use same payload as LHT65.
142 142  
143 -(% _mstvisible="1" %)
142 +
144 144  [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
145 145  
146 146  
147 -(% _msthash="315247" _msttexthash="595543" _mstvisible="1" %)
148 148  Input APP EUI,  APP KEY and DEV EUI:
149 149  
150 -(% _mstvisible="1" %)
148 +
151 151  [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
152 152  
153 153  
154 154  
155 -(% _mstvisible="1" %)
156 -=== (% _msthash="3537456" _msttexthash="3448549" _mstvisible="3" %)2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds.(%%) ===
157 157  
158 -(% _msthash="315248" _msttexthash="14452321" _mstvisible="1" %)
154 +=== 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
155 +
156 +(((
159 159  Use ACT button to activate LHT65N and it will auto-join to the TTN V3 network. After join success, it will start to upload sensor data to TTN V3 and user can see in the panel.
158 +)))
160 160  
161 -(% _mstvisible="1" %)
162 162  [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
163 163  
164 164  
165 165  
166 -(% _mstvisible="1" %)
167 -== (% _msthash="320879" _msttexthash="294970" _mstvisible="3" %)2.4 Uplink Payload(%%) ==
168 168  
169 -(% _msthash="315249" _msttexthash="7722962" _mstvisible="1" %)
165 +== 2.4 Uplink Payload ==
166 +
167 +(((
170 170  The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% _mstvisible="3" style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
169 +)))
171 171  
172 -(% _msthash="315250" _msttexthash="1322711" _mstvisible="1" %)
171 +(((
173 173  After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
173 +)))
174 174  
175 175  (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
176 176  (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
... ... @@ -236,123 +236,108 @@
236 236  [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
237 237  )))
238 238  
239 -(% _mstvisible="1" %)
240 240  * The First 6 bytes: has fix meanings for every LHT65N.
241 241  * The 7th byte (EXT #): defines the external sensor model.
242 242  * 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.)
243 243  
244 -(% _mstvisible="1" %)
245 -=== (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
246 246  
247 -(% _msthash="315251" _msttexthash="9786491" _mstvisible="1" %)
244 +
245 +
246 +
247 +=== 2.4.1 Decoder in TTN V3 ===
248 +
248 248  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.
249 249  
250 -(% _msthash="315252" _msttexthash="3928483" _mstvisible="1" %)
251 251  Below is the position to put the decoder and LHT65N decoder can be download from here:
252 252  
253 -(% _mstvisible="1" %)
253 +
254 254  [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064" _mstvisible="2"]]
255 255  
256 -(% _mstvisible="1" %)
256 +
257 257  [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
258 258  
259 259  
260 260  
261 -(% _mstvisible="1" %)
262 -=== (% _msthash="411411" _msttexthash="383656" _mstvisible="3" %)2.4.2 BAT-Battery Info(%%) ===
263 263  
264 -(% _msthash="315254" _msttexthash="3122912" _mstvisible="1" %)
262 +=== 2.4.2 BAT-Battery Info ===
263 +
265 265  These two bytes of BAT include the battery state and the actually voltage
266 266  
267 -(% _mstvisible="1" %)
268 268  [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
269 269  
270 -(% _mstvisible="1" %)
268 +
271 271  [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
272 272  
273 -(% _msthash="315255" _msttexthash="871611" _mstvisible="1" %)
271 +
274 274  Check the battery voltage for LHT65N.
275 275  
276 -(% _mstvisible="1" %)
277 277  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
278 278  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
279 279  
280 -(% _mstvisible="1" %)
281 -=== (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
282 282  
283 -(% _mstvisible="1" %)
278 +
279 +
280 +=== 2.4.3 Built-in Temperature ===
281 +
284 284  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
285 285  
286 -(% _mstvisible="1" %)
287 287  * Temperature:  0x0ABB/100=27.47℃
288 288  
289 -(% _mstvisible="1" %)
290 290  [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
291 291  
292 -(% _mstvisible="1" %)
293 293  * Temperature:  (0xF5C6-65536)/100=-26.18℃
294 294  
295 -(% _mstvisible="1" %)
296 -=== (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
297 297  
298 -(% _mstvisible="1" %)
291 +
292 +=== 2.4.4 Built-in Humidity ===
293 +
299 299  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
300 300  
301 -(% _mstvisible="1" %)
302 302  * Humidity:    0x025C/10=60.4%
303 303  
304 -(% _mstvisible="1" %)
305 -=== (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
306 306  
307 -(% _msthash="315256" _msttexthash="552240" _mstvisible="1" %)
299 +
300 +=== 2.4.5 Ext # ===
301 +
308 308  Bytes for External Sensor:
309 309  
310 -(% _mstvisible="1" %)
311 311  [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
312 312  
313 313  
314 -(% _mstvisible="1" %)
315 -=== (% _msthash="221429" _msttexthash="200655" _mstvisible="3" %)2.4.6 Ext value(%%) ===
316 316  
317 -(% _mstvisible="1" %)
318 -==== (% _msthash="1005901" _msttexthash="877578" _mstvisible="3" %)2.4.6.1 Ext~=1, E3 Temperature Sensor(%%) ====
308 +=== 2.4.6 Ext value ===
319 319  
320 -(% _mstvisible="1" %)
310 +==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
311 +
312 +
321 321  [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
322 322  
323 323  
324 -(% _mstvisible="1" %)
325 325  * DS18B20 temp=0x0ADD/100=27.81℃
326 326  
327 -(% _msthash="315257" _msttexthash="1038479" _mstvisible="1" %)
328 328  The last 2 bytes of data are meaningless
329 329  
330 -(% _mstvisible="1" %)
331 331  [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
332 332  
333 333  
334 -(% _mstvisible="1" %)
335 335  * External temperature= (0xF54F-65536)/100=-27.37℃
336 336  
337 -(% _mstvisible="1" %)
338 -(((
339 -(% _msthash="506063" _msttexthash="1038479" _mstvisible="2" %)
340 340  The last 2 bytes of data are meaningless
341 -)))
342 342  
343 -(% _mstvisible="1" %)
344 -(((
345 -(% _msthash="506064" _msttexthash="21185632" _mstvisible="2" %)
346 346  If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
347 -)))
348 348  
349 349  
350 -(% _mstvisible="1" %)
351 -==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
352 352  
353 -(% _msthash="315258" _msttexthash="41539368" _mstvisible="1" %)
331 +==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
332 +
333 +(((
354 354  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:
335 +)))
355 355  
337 +(((
338 +
339 +)))
340 +
356 356  (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
357 357  (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
358 358  (((
... ... @@ -426,6 +426,7 @@
426 426  )))
427 427  )))
428 428  
414 +
429 429  (% _mstvisible="1" %)
430 430  * (% _msthash="2539669" _msttexthash="857922" _mstvisible="3" %)**Battery status & **(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)**Built-in Humidity**
431 431  
... ... @@ -456,19 +456,20 @@
456 456  
457 457  )))
458 458  
459 -(% _mstvisible="1" %)
445 +
460 460  * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
461 461  
462 -(% _mstvisible="1" %)
463 463  [[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
464 464  
465 -(% _mstvisible="1" %)
466 -* Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
467 -* 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.
468 -* 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)
450 +* Poll Message Flag:  1: This message is a poll message reply, 0: means this is a normal uplink.
451 +* 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.
452 +* 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)
469 469  
470 -==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable)(%%) ====
471 471  
455 +
456 +
457 +==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
458 +
472 472  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
473 473  
474 474  be used to power the external ADC sensor; user can control the power on time for this
... ... @@ -479,188 +479,128 @@
479 479  
480 480  
481 481  
482 -(% _mstvisible="1" %)
483 -== (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
469 +== 2.5 Show data on Datacake ==
484 484  
485 -(% _msthash="315259" _msttexthash="20933341" _mstvisible="1" %)
471 +(((
486 486  Datacake IoT platform provides a human-friendly interface to show the sensor data, once we have sensor data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps:
473 +)))
487 487  
488 -(% _mstvisible="1" %)
489 489  (((
490 -(% _msthash="506065" _msttexthash="4753983" _mstvisible="2" %)
491 -(% _mstvisible="3" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
476 +
492 492  )))
493 493  
494 -(% _mstvisible="1" %)
495 495  (((
496 -(% _msthash="506066" _msttexthash="14696682" _mstvisible="2" %)
497 -(% _mstvisible="3" %)**Step 2**(%%): Configure your Application to forward data to Datacake you will need to add integration. Go to TTN V3 Console ~-~-> Applications ~-~-> Integrations ~-~-> Add Integrations.
480 +(% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
498 498  )))
499 499  
500 -(% _mstvisible="1" %)
501 501  (((
502 -(% _msthash="506067" _msttexthash="180297" _mstvisible="2" %)
484 +(% style="color:blue" %)**Step 2**(%%): Configure your Application to forward data to Datacake you will need to add integration. Go to TTN V3 Console ~-~-> Applications ~-~-> Integrations ~-~-> Add Integrations.
485 +)))
486 +
487 +(((
488 +
489 +)))
490 +
491 +(((
503 503  Add Datacake:
504 504  )))
505 505  
506 -(% _mstvisible="1" %)
495 +
507 507  [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
508 508  
509 509  
510 -(% _msthash="315260" _msttexthash="750178" _mstvisible="1" %)
499 +
511 511  Select default key as Access Key:
512 512  
513 -(% _mstvisible="1" %)
502 +
514 514  [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
515 515  
516 -(% _msthash="315261" _msttexthash="2134964" _mstvisible="1" %)
505 +
517 517  In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
518 518  
519 -(% _mstvisible="1" %)
508 +
520 520  [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
521 521  
522 -(% _mstvisible="1" %)
511 +
523 523  [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
524 524  
525 525  
526 526  
527 -(% _mstvisible="1" %)
528 -== (% _msthash="350454" _msttexthash="323544" _mstvisible="3" %)2.6 Datalog Feature(%%) ==
516 +== 2.6 Datalog Feature ==
529 529  
530 -(% _msthash="315262" _msttexthash="32283004" _mstvisible="1" %)
518 +(((
531 531  Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LHT65N will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from LHT65N.
520 +)))
532 532  
533 533  
534 -(% _mstvisible="1" %)
535 -=== (% _msthash="886158" _msttexthash="842426" _mstvisible="3" %)2.6.1 Ways to get datalog via LoRaWAN(%%) ===
536 536  
537 -(% _msthash="315263" _msttexthash="409604" _mstvisible="1" %)
524 +=== 2.6.1 Ways to get datalog via LoRaWAN ===
525 +
538 538  There are two methods:
539 539  
540 -(% _mstvisible="1" %)
541 541  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
542 542  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.
543 543  
544 -(% _mstvisible="1" %)
545 -=== (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
546 546  
547 -(% _msthash="315264" _msttexthash="1182285" _mstvisible="1" %)
532 +=== 2.6.2 Unix TimeStamp ===
533 +
534 +
548 548  LHT65N uses Unix TimeStamp format based on
549 549  
550 -(% _mstvisible="1" %)
537 +
551 551  [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
552 552  
553 553  
554 -(% _mstvisible="1" %)
555 -(((
556 -(% _msthash="506068" _msttexthash="2717234" _mstvisible="2" %)
541 +
557 557  User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
558 -)))
559 559  
560 -(% _mstvisible="1" %)
561 -(((
562 -(% _msthash="506069" _msttexthash="709813" _mstvisible="2" %)
563 563  Below is the converter example
564 -)))
565 565  
566 -(% _mstvisible="1" %)
567 567  [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
568 568  
569 -(% _msthash="315265" _msttexthash="15137317" _mstvisible="1" %)
570 570  So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
571 571  
572 572  
573 -(% _mstvisible="1" %)
574 -=== (% _msthash="359294" _msttexthash="332748" _mstvisible="3" %)2.6.3 Set Device Time(%%) ===
575 575  
576 -(% _mstvisible="1" %)
577 -(((
578 -(% _msthash="506070" _msttexthash="4521946" _mstvisible="2" %)
579 -There are two ways to set device’s time:
580 -)))
552 +=== 2.6.3 Set Device Time ===
581 581  
582 -(% _mstvisible="1" %)
583 -(((
584 -(% _mstvisible="2" %)
585 -(% _msthash="506071" _msttexthash="1498471" _mstvisible="4" %)**1. Through LoRaWAN MAC Command (Default settings)**
586 -)))
554 +There are two ways to set device's time:
587 587  
588 -(% _mstvisible="1" %)
589 -(((
590 -(% _msthash="506072" _msttexthash="2126267" _mstvisible="2" %)
556 +**~1. Through LoRaWAN MAC Command (Default settings)**
557 +
591 591  User need to set SYNCMOD=1 to enable sync time via MAC command.
592 -)))
593 593  
594 -(% _mstvisible="1" %)
595 -(((
596 -(% _msthash="506073" _msttexthash="54430324" _mstvisible="2" %)
597 597  Once LHT65N Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65N. If LHT65N fails to get the time from the server, LHT65N will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
598 -)))
599 599  
600 -(% _mstvisible="1" %)
601 -(((
602 -(% _msthash="506074" _msttexthash="92531127" _mstvisible="2" %)
603 -Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn’t support. If server doesn’t support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.
604 -)))
562 +(% style="color:red" %)Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn’t support. If server doesn’t support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.
605 605  
606 -(% _mstvisible="1" %)
607 -(((
608 -(% _mstvisible="2" %)
609 -
610 -)))
611 611  
612 -(% _mstvisible="1" %)
613 -(((
614 -(% _mstvisible="2" %)
615 -(% _msthash="506075" _msttexthash="329719" _mstvisible="4" %)**2. Manually Set Time**
616 -)))
617 617  
618 -(% _mstvisible="1" %)
619 -(((
620 -(% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
566 +**2. Manually Set Time**
567 +
621 621  User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
622 622  
623 -(% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
624 -
625 -)))
626 626  
627 -(% _mstvisible="1" %)
628 -=== (% _msthash="460759" _msttexthash="430001" _mstvisible="3" %)2.6.4 Poll sensor value(%%) ===
629 629  
630 -(% _msthash="315266" _msttexthash="4955821" _mstvisible="1" %)
572 +=== 2.6.4 Poll sensor value ===
573 +
631 631  User can poll sensor value based on timestamps from the server. Below is the downlink command.
632 632  
633 -(% _mstvisible="1" %)
634 634  [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
635 635  
636 -(% _mstvisible="1" %)
637 -(((
638 -(% _msthash="506077" _msttexthash="14670916" _mstvisible="2" %)
578 +
639 639  Timestamp start and Timestamp end use Unix TimeStamp format as mentioned above. Devices will reply with all data log during this time period, use the uplink interval.
640 -)))
641 641  
642 -(% _mstvisible="1" %)
643 -(((
644 -(% _mstvisible="2" %)
645 -For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(% _mstvisible="3" style="display:none" %)
646 -)))
581 +For example, downlink command **31 5FC5F350 5FC6 0160 05**
647 647  
648 -(% _mstvisible="1" %)
649 -(((
650 -(% _msthash="506078" _msttexthash="6907459" _mstvisible="2" %)
651 651  Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
652 -)))
653 653  
654 -(% _mstvisible="1" %)
655 -(((
656 -(% _msthash="506079" _msttexthash="23531573" _mstvisible="2" %)
657 657  Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
658 -)))
659 659  
660 660  
661 -(% _mstvisible="1" %)
662 -=== (% _msthash="650923" _msttexthash="614185" _mstvisible="3" %)2.6.5 Datalog Uplink payload(%%) ===
663 663  
589 +=== 2.6.5 Datalog Uplink payload ===
590 +
664 664  (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
665 665  The Datalog poll reply uplink will use below payload format.
666 666