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Last modified by Xiaoling on 2023/07/18 10:12
From version 189.7
edited by Xiaoling
on 2022/07/22 11:10
Change comment: There is no comment for this version
To version 205.2
edited by Xiaoling
on 2022/10/13 16:12
Change comment: There is no comment for this version

Summary

Details

Page properties
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:image-20220613162008-1.png||_mstalt="428142" height="510" width="334"]]
3 3  
4 4  
5 5  
... ... @@ -16,6 +16,7 @@
16 16  
17 17  = 1. Introduction =
18 18  
19 +
19 19  == 1.1 What is LHT65N Temperature & Humidity Sensor ==
20 20  
21 21  
... ... @@ -44,8 +44,10 @@
44 44  )))
45 45  
46 46  
48 +
47 47  == 1.2 Features ==
48 48  
51 +
49 49  * Wall mountable
50 50  * LoRaWAN v1.0.3 Class A protocol
51 51  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
... ... @@ -56,7 +56,7 @@
56 56  * Built-in Temperature & Humidity sensor
57 57  * Optional External Sensors
58 58  * Tri-color LED to indicate working status
59 -* Datalog feature
62 +* Datalog feature (Max 3328 records)
60 60  
61 61  
62 62  
... ... @@ -63,7 +63,7 @@
63 63  == 1.3 Specification ==
64 64  
65 65  
66 -**Built-in Temperature Sensor:**
69 +(% style="color:#037691" %)**Built-in Temperature Sensor:**
67 67  
68 68  * Resolution: 0.01 °C
69 69  * Accuracy Tolerance : Typ ±0.3 °C
... ... @@ -70,7 +70,7 @@
70 70  * Long Term Drift: < 0.02 °C/yr
71 71  * Operating Range: -40 ~~ 85 °C
72 72  
73 -**Built-in Humidity Sensor:**
76 +(% style="color:#037691" %)**Built-in Humidity Sensor:**
74 74  
75 75  * Resolution: 0.04 %RH
76 76  * Accuracy Tolerance : Typ ±3 %RH
... ... @@ -77,7 +77,7 @@
77 77  * Long Term Drift: < 0.02 °C/yr
78 78  * Operating Range: 0 ~~ 96 %RH
79 79  
80 -**External Temperature Sensor:**
83 +(% style="color:#037691" %)**External Temperature Sensor:**
81 81  
82 82  * Resolution: 0.0625 °C
83 83  * ±0.5°C accuracy from -10°C to +85°C
... ... @@ -88,8 +88,10 @@
88 88  
89 89  = 2. Connect LHT65N to IoT Server =
90 90  
94 +
91 91  == 2.1 How does LHT65N work? ==
92 92  
97 +
93 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 95  )))
... ... @@ -99,8 +99,10 @@
99 99  )))
100 100  
101 101  
107 +
102 102  == 2.2 How to Activate LHT65N? ==
103 103  
110 +
104 104  (((
105 105  The LHT65N has two working modes:
106 106  )))
... ... @@ -125,9 +125,11 @@
125 125  
126 126  == 2.3 Example to join LoRaWAN network ==
127 127  
135 +
128 128  (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
129 129  This section shows an example of how to join the TTN V3 LoRaWAN IoT server. Use with other LoRaWAN IoT servers is of a similar procedure.
130 130  
139 +
131 131  (% _mstvisible="1" class="wikigeneratedid" %)
132 132  [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
133 133  
... ... @@ -140,6 +140,7 @@
140 140  
141 141  === 2.3.1 Step 1: Create Device n TTN ===
142 142  
152 +
143 143  (((
144 144  Create a device in TTN V3 with the OTAA keys from LHT65N.
145 145  )))
... ... @@ -181,6 +181,7 @@
181 181  
182 182  === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
183 183  
194 +
184 184  (((
185 185  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.
186 186  )))
... ... @@ -192,6 +192,7 @@
192 192  
193 193  == 2.4 Uplink Payload ==
194 194  
206 +
195 195  (((
196 196  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.
197 197  )))
... ... @@ -272,14 +272,12 @@
272 272  
273 273  === 2.4.1 Decoder in TTN V3 ===
274 274  
287 +
275 275  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.
276 276  
277 -Below is the position to put the decoder and LHT65N decoder can be download from here:
290 +Below is the position to put the decoder and LHT65N decoder can be download from here: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
278 278  
279 279  
280 -[[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064" _mstvisible="2"]]
281 -
282 -
283 283  [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
284 284  
285 285  
... ... @@ -287,6 +287,7 @@
287 287  
288 288  === 2.4.2 BAT-Battery Info ===
289 289  
300 +
290 290  These two bytes of BAT include the battery state and the actually voltage
291 291  
292 292  [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
... ... @@ -304,6 +304,7 @@
304 304  
305 305  === 2.4.3 Built-in Temperature ===
306 306  
318 +
307 307  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
308 308  
309 309  * Temperature:  0x0ABB/100=27.47℃
... ... @@ -312,10 +312,9 @@
312 312  
313 313  * Temperature:  (0xF5C6-65536)/100=-26.18℃
314 314  
315 -
316 -
317 317  === 2.4.4 Built-in Humidity ===
318 318  
329 +
319 319  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
320 320  
321 321  * Humidity:    0x025C/10=60.4%
... ... @@ -324,6 +324,7 @@
324 324  
325 325  === 2.4.5 Ext # ===
326 326  
338 +
327 327  Bytes for External Sensor:
328 328  
329 329  [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
... ... @@ -332,6 +332,7 @@
332 332  
333 333  === 2.4.6 Ext value ===
334 334  
347 +
335 335  ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
336 336  
337 337  
... ... @@ -355,6 +355,7 @@
355 355  
356 356  ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
357 357  
371 +
358 358  (((
359 359  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:
360 360  )))
... ... @@ -436,6 +436,7 @@
436 436  )))
437 437  )))
438 438  
453 +
439 439  (% _mstvisible="1" %)
440 440  * (% _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**
441 441  
... ... @@ -466,6 +466,7 @@
466 466  
467 467  )))
468 468  
484 +
469 469  * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
470 470  
471 471  (% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
... ... @@ -481,6 +481,7 @@
481 481  
482 482  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
483 483  
500 +
484 484  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
485 485  
486 486  be used to power the external ADC sensor; user can control the power on time for this
... ... @@ -487,7 +487,7 @@
487 487  
488 488  sensor by setting:
489 489  
490 -AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
507 +AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)**Time to power this sensor, from 0 ~~ 65535ms**
491 491  
492 492  For example:
493 493  
... ... @@ -510,6 +510,7 @@
510 510  
511 511  When the voltage collected by ADC_IN1 is less than the minimum range, the minimum range will be used as the output; Similarly, when the collected voltage is greater than the maximum range, the maximum range will be used as the output.
512 512  
530 +
513 513  1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
514 514  
515 515  [[image:image-20220628151005-5.png]]
... ... @@ -526,8 +526,171 @@
526 526  
527 527  
528 528  
547 +==== 2.4.6.4 Ext~=2 TMP117 Sensor （Since Firmware v1.3） ====
548 +
549 +
550 +[[image:image-20220927095645-1.png||height="534" width="460"]]
551 +
552 +
553 +**Ext=2,Temperature Sensor(TMP117)：**
554 +
555 +[[image:image-20220906102307-7.png]]
556 +
557 +
558 +(% style="color:blue" %)**Interrupt Mode and Counting Mode:**
559 +
560 +The external cable NE2 can be use for MOD4 and MOD8
561 +
562 +
563 +
564 +
565 +==== 2.4.6.5 Ext~=4 Interrupt Mode （Since Firmware v1.3） ====
566 +
567 +
568 +(% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will send an uplink when there is a trigger.**
569 +
570 +
571 +(% style="color:blue" %)**Interrupt Mode can be used to connect to external interrupt sensors such as:**
572 +
573 +**Case 1: Door Sensor.** 3.3v Out for such sensor is just to detect Open/Close.
574 +
575 + In Open State, the power consumption is the same as if there is no probe
576 +
577 + In Close state, the power consumption will be 3uA higher than normal.
578 +
579 +[[image:image-20220906100852-1.png||height="205" width="377"]]
580 +
581 +
582 +Ext=4,Interrupt Sensor：
583 +
584 +(% border="2" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:512px" %)
585 +|(% style="width:117px" %)(((
586 +AT+EXT=4,1
587 +)))|(% style="width:371px" %)(((
588 +Sent uplink packet in both rising and falling interrupt
589 +)))
590 +|(% style="width:117px" %)(((
591 +AT+EXT=4,2
592 +)))|(% style="width:371px" %)(((
593 +Sent uplink packet only in falling interrupt
594 +)))
595 +|(% style="width:117px" %)(((
596 +AT+EXT=4,3
597 +)))|(% style="width:371px" %)(((
598 +Sent uplink packet only in rising interrupt
599 +)))
600 +
601 +Trigger by falling edge:
602 +
603 +[[image:image-20220906101145-2.png]]
604 +
605 +
606 +Trigger by raising edge：
607 +
608 +[[image:image-20220906101145-3.png]]
609 +
610 +
611 +
612 +
613 +==== 2.4.6.6 Ext~=8 Counting Mode（Since Firmware v1.3） ====
614 +
615 +
616 +(% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will count for every interrupt and uplink periodically.**
617 +
618 +
619 +(% style="color:blue" %)**Case 1**(%%):  Low power consumption Flow Sensor, such flow sensor has pulse output and the power consumption in uA level and can be powered by LHT65N.
620 +
621 +[[image:image-20220906101320-4.png||height="366" width="698"]]
622 +
623 +
624 +(% style="color:blue" %)**Case 2**(%%):  Normal Flow Sensor: Such flow sensor has higher power consumption and is not suitable to be powered by LHT65N. It is powered by external power and output <3.3v pulse
625 +
626 +[[image:image-20220906101320-5.png||height="353" width="696"]]
627 +
628 +Ext=8, Counting Sensor ( 4 bytes)：
629 +
630 +(% border="2" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:381px" %)
631 +|(% style="width:138px" %)(((
632 +AT+EXT=8,0
633 +)))|(% style="width:240px" %)(((
634 +Count at falling interrupt
635 +)))
636 +|(% style="width:138px" %)(((
637 +AT+EXT=8,1
638 +)))|(% style="width:240px" %)(((
639 +Count at rising interrupt
640 +)))
641 +|(% style="width:138px" %)(((
642 +AT+SETCNT=60
643 +)))|(% style="width:240px" %)(((
644 +Sent current count to 60
645 +)))
646 +
647 +[[image:image-20220906101320-6.png]]
648 +
649 +
650 +(% style="color:blue" %)**A2 downlink Command：**
651 +
652 +A2 02:  Same as AT+EXT=2 (AT+EXT= second byte)
653 +
654 +A2 06 01 F4:  Same as AT+EXT=6,500 (AT+EXT= second byte, third and fourth bytes)
655 +
656 +A2 04 02:  Same as AT+EXT=4,2 (AT+EXT= second byte, third byte)
657 +
658 +A2 08 01 00:  Same as AT+EXT=8,0 (AT+EXT= second byte, fourth byte)
659 +
660 +A2 08 02 00 00 00 3C:  Same as AT+ SETCNT=60  (AT+ SETCNT = 4th byte and 5th byte and 6th byte and 7th byte)
661 +
662 +
663 +(% style="color:blue" %)**Modified ATWOOD command for external sensor TMP117 or DS18B20 temperature alarm.**
664 +
665 +
666 +(% style="color:#037691" %)**AT+WMOD=parameter1,parameter2,parameter3,parameter4**
667 +
668 +(% style="color:#037691" %)**Parameter 1**(%%):  Alarm mode:
669 +
670 +0): Cancel
671 +
672 +1): Threshold alarm
673 +
674 +2): Fluctuation alarm
675 +
676 +
677 +(% style="color:#037691" %)** Parameter 2**(%%):  Sampling time. Unit: seconds, up to 255 seconds.
678 +
679 +(% style="color:red" %)**Note: When the collection time is less than 60 seconds and always exceeds the set alarm threshold, the sending interval will not be the collection time, but will be sent every 60 seconds.**
680 +
681 +
682 +(% style="color:#037691" %) **Parameter 3 and parameter 4:**
683 +
684 +1):  If Alarm Mode is set to 1: Parameter 3 and parameter 4 are valid, as before, they represent low temperature and high temperature.
685 +
686 +Such as AT+WMOD=1,60,45,105, it means high and low temperature alarm.
687 +
688 +
689 +2):  If Alarm Mode is set to 2: Parameter 3 is valid, which represents the difference between the currently collected temperature and the last uploaded temperature.
690 +
691 +Such as AT+WMOD=2,10,2,it means that it is a fluctuation alarm.
692 +
693 +If the difference between the current collected temperature and the last Uplin is ±2 degrees, the alarm will be issued.
694 +
695 +
696 +(% style="color:blue" %)** Downlink:**
697 +
698 +0xA5 00 ~-~- AT+WMOD=0.
699 +
700 +0xA5 01 0A 11 94 29 04 ~-~- AT+WMOD=1,10,45,105  (AT+WMOD = second byte, third byte, fourth and fifth bytes divided by 100, sixth and seventh bytes divided by 100 )
701 +
702 +0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
703 +
704 +0xA5 FF ~-~- After the device receives it, upload the current alarm configuration (FPORT=8). Such as 01 0A 11 94 29 04 or 02 0A 02.
705 +
706 +
707 +
708 +
529 529  == 2.5 Show data on Datacake ==
530 530  
711 +
531 531  (((
532 532  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:
533 533  )))
... ... @@ -575,6 +575,7 @@
575 575  
576 576  == 2.6 Datalog Feature ==
577 577  
759 +
578 578  (((
579 579  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.
580 580  )))
... ... @@ -583,13 +583,22 @@
583 583  
584 584  === 2.6.1 Ways to get datalog via LoRaWAN ===
585 585  
768 +
586 586  There are two methods:
587 587  
588 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
589 -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 the network recovery.
771 +**Method 1**: IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.
590 590  
773 +
774 +**Method 2: **Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
775 +
776 +**Note for method 2:**
777 +
778 +* a) LHT65N will do an ACK check for data records sending to make sure every data arrive server.
779 +* b) LHT65N will send data in **CONFIRMED Mode** when PNACKMD=1, but LHT65N won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if LHT65N gets a ACK, LHT65N will consider there is a network connection and resend all NONE-ACK Message.
780 +
591 591  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
592 592  
783 +
593 593  [[image:image-20220703111700-2.png||height="381" width="1119"]]
594 594  
595 595  
... ... @@ -615,6 +615,7 @@
615 615  
616 616  === 2.6.3 Set Device Time ===
617 617  
809 +
618 618  (((
619 619  There are two ways to set device's time:
620 620  )))
... ... @@ -632,7 +632,7 @@
632 632  )))
633 633  
634 634  (((
635 -(% 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.
827 +(% 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.**
636 636  )))
637 637  
638 638  (((
... ... @@ -651,6 +651,7 @@
651 651  
652 652  === 2.6.4 Poll sensor value ===
653 653  
846 +
654 654  User can poll sensor value based on timestamps from the server. Below is the downlink command.
655 655  
656 656  [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
... ... @@ -668,6 +668,7 @@
668 668  
669 669  === 2.6.5 Datalog Uplink payload ===
670 670  
864 +
671 671  (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
672 672  The Datalog poll reply uplink will use below payload format.
673 673  
... ... @@ -674,6 +674,9 @@
674 674  (% _mstvisible="1" %)
675 675  (((
676 676  (% _mstvisible="2" %)
871 +
872 +
873 +(% _mstvisible="2" %)
677 677  (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
678 678  )))
679 679  
... ... @@ -805,15 +805,18 @@
805 805  (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
806 806  
807 807  (% _mstvisible="1" %)
808 -[[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
809 -
810 -(% _mstvisible="1" %)
811 811  (((
812 812  (% _mstvisible="2" %)
813 813  (((
814 814  (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
815 815  (((
816 -Poll Message Flag: 1: This message is a poll message reply.
1010 +[[image:image-20221006192726-1.png||height="112" width="754"]]
1011 +
1012 +(% class="mark" %)**No ACK Message**(%%): 1: This message means this payload is fromn Uplink Message which doesn't get ACK from the server before ( for [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]] feature)
1013 +
1014 +(% class="mark" %)**Poll Message Flag**(%%): 1: This message is a poll message reply.
1015 +
1016 +
817 817  )))
818 818  )))
819 819  )))
... ... @@ -862,7 +862,7 @@
862 862  (((
863 863  (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
864 864  (((
865 -a) DR0: max is 11 bytes so one entry of data
1065 +**a) DR0:** max is 11 bytes so one entry of data
866 866  )))
867 867  )))
868 868  )))
... ... @@ -873,7 +873,7 @@
873 873  (((
874 874  (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
875 875  (((
876 -b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
1076 +**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
877 877  )))
878 878  )))
879 879  )))
... ... @@ -884,7 +884,7 @@
884 884  (((
885 885  (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
886 886  (((
887 -c) DR2: total payload includes 11 entries of data
1087 +**c) DR2:** total payload includes 11 entries of data
888 888  )))
889 889  )))
890 890  )))
... ... @@ -895,7 +895,7 @@
895 895  (((
896 896  (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
897 897  (((
898 -d) DR3: total payload includes 22 entries of data.
1098 +**d) DR3: **total payload includes 22 entries of data.
899 899  )))
900 900  )))
901 901  )))
... ... @@ -906,7 +906,7 @@
906 906  (((
907 907  (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
908 908  (((
909 -If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
1109 +If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0   
910 910  )))
911 911  )))
912 912  )))
... ... @@ -936,7 +936,7 @@
936 936  (% _mstvisible="1" %)
937 937  (((
938 938  (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
939 - Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
1139 + Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
940 940  )))
941 941  
942 942  (% _mstvisible="1" %)
... ... @@ -954,6 +954,7 @@
954 954  (% _mstvisible="1" %)
955 955  [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
956 956  
1157 +
957 957  (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
958 958  (((
959 959  7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
... ... @@ -998,12 +998,15 @@
998 998  
999 999  == 2.7 Alarm Mode ==
1000 1000  
1202 +
1001 1001  (((
1002 1002  when the device is in alarm mode, it checks the built-in sensor temperature for a short time. if the temperature exceeds the preconfigured range, it sends an uplink immediately.
1003 1003  )))
1004 1004  
1005 1005  (((
1006 -(% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
1208 +(% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**
1209 +
1210 +
1007 1007  )))
1008 1008  
1009 1009  (((
... ... @@ -1048,8 +1048,10 @@
1048 1048  TEMPhigh=003C
1049 1049  
1050 1050  
1255 +
1051 1051  == 2.8 LED Indicator ==
1052 1052  
1258 +
1053 1053  The LHT65 has a triple color LED which for easy showing different stage .
1054 1054  
1055 1055  While user press ACT button, the LED will work as per LED status with ACT button.
... ... @@ -1065,6 +1065,7 @@
1065 1065  
1066 1066  == 2.9 installation ==
1067 1067  
1274 +
1068 1068  (% _mstvisible="1" %)
1069 1069  [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1070 1070  
... ... @@ -1072,10 +1072,13 @@
1072 1072  
1073 1073  = 3. Sensors and Accessories =
1074 1074  
1282 +
1075 1075  == 3.1 E2 Extension Cable ==
1076 1076  
1285 +
1077 1077  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1078 1078  
1288 +
1079 1079  **1m long breakout cable for LHT65N. Features:**
1080 1080  
1081 1081  * (((
... ... @@ -1092,6 +1092,9 @@
1092 1092  )))
1093 1093  * (((
1094 1094  Exposed All pins from the LHT65N Type-C connector.
1305 +
1306 +
1307 +
1095 1095  )))
1096 1096  
1097 1097  [[image:image-20220619092421-3.png||height="371" width="529"]]
... ... @@ -1117,6 +1117,7 @@
1117 1117  
1118 1118  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1119 1119  
1333 +
1120 1120  (((
1121 1121  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1122 1122  )))
... ... @@ -1161,10 +1161,13 @@
1161 1161  )))
1162 1162  
1163 1163  
1378 +
1164 1164  == 4.1 Set Transmit Interval Time ==
1165 1165  
1381 +
1166 1166  Feature: Change LoRaWAN End Node Transmit Interval.
1167 1167  
1384 +
1168 1168  (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1169 1169  
1170 1170  [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
... ... @@ -1184,8 +1184,10 @@
1184 1184  
1185 1185  == 4.2 Set External Sensor Mode ==
1186 1186  
1404 +
1187 1187  Feature: Change External Sensor Mode.
1188 1188  
1407 +
1189 1189  (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1190 1190  
1191 1191  [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
... ... @@ -1207,6 +1207,7 @@
1207 1207  
1208 1208  == 4.3 Enable/Disable uplink Temperature probe ID ==
1209 1209  
1429 +
1210 1210  (((
1211 1211  Feature: If PID is enabled, device will send the temperature probe ID on:
1212 1212  )))
... ... @@ -1220,6 +1220,8 @@
1220 1220  
1221 1221  (((
1222 1222  PID is default set to disable (0)
1443 +
1444 +
1223 1223  )))
1224 1224  
1225 1225  (% style="color:#4f81bd" %)**AT Command:**
... ... @@ -1236,8 +1236,10 @@
1236 1236  
1237 1237  == 4.4 Set Password ==
1238 1238  
1461 +
1239 1239  Feature: Set device password, max 9 digits
1240 1240  
1464 +
1241 1241  (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1242 1242  
1243 1243  [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
... ... @@ -1251,8 +1251,10 @@
1251 1251  
1252 1252  == 4.5 Quit AT Command ==
1253 1253  
1478 +
1254 1254  Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1255 1255  
1481 +
1256 1256  (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1257 1257  
1258 1258  [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
... ... @@ -1266,6 +1266,7 @@
1266 1266  
1267 1267  == 4.6 Set to sleep mode ==
1268 1268  
1495 +
1269 1269  Feature: Set device to sleep mode
1270 1270  
1271 1271  * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
... ... @@ -1284,8 +1284,10 @@
1284 1284  
1285 1285  == 4.7 Set system time ==
1286 1286  
1514 +
1287 1287  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1288 1288  
1517 +
1289 1289  (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1290 1290  
1291 1291  [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
... ... @@ -1293,12 +1293,13 @@
1293 1293  
1294 1294  (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1295 1295  
1296 -0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1525 +0x306007806000  ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1297 1297  
1298 1298  
1299 1299  
1300 1300  == 4.8 Set Time Sync Mode ==
1301 1301  
1531 +
1302 1302  (((
1303 1303  Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1304 1304  )))
... ... @@ -1305,6 +1305,8 @@
1305 1305  
1306 1306  (((
1307 1307  SYNCMOD is set to 1 by default. If user want to set a different time from LoRaWAN server, user need to set this to 0.
1538 +
1539 +
1308 1308  )))
1309 1309  
1310 1310  (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
... ... @@ -1314,15 +1314,17 @@
1314 1314  
1315 1315  (% style="color:#4f81bd" %)**Downlink Command:**
1316 1316  
1317 -0x28 01 ~/~/ Same As AT+SYNCMOD=1
1318 -0x28 00 ~/~/ Same As AT+SYNCMOD=0
1549 +0x28 01  ~/~/  Same As AT+SYNCMOD=1
1550 +0x28 00  ~/~/  Same As AT+SYNCMOD=0
1319 1319  
1320 1320  
1321 1321  
1322 1322  == 4.9 Set Time Sync Interval ==
1323 1323  
1556 +
1324 1324  Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1325 1325  
1559 +
1326 1326  (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1327 1327  
1328 1328  [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
... ... @@ -1330,14 +1330,16 @@
1330 1330  
1331 1331  (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1332 1332  
1333 -**0x29 0A** ~/~/ Same as AT+SYNCTDC=0x0A
1567 +**0x29 0A**  ~/~/ Same as AT+SYNCTDC=0x0A
1334 1334  
1335 1335  
1336 1336  
1337 1337  == 4.10 Print data entries base on page. ==
1338 1338  
1573 +
1339 1339  Feature: Print the sector data from start page to stop page (max is 416 pages).
1340 1340  
1576 +
1341 1341  (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1342 1342  
1343 1343  [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
... ... @@ -1351,8 +1351,10 @@
1351 1351  
1352 1352  == 4.11 Print last few data entries. ==
1353 1353  
1590 +
1354 1354  Feature: Print the last few data entries
1355 1355  
1593 +
1356 1356  (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1357 1357  
1358 1358  [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
... ... @@ -1366,6 +1366,7 @@
1366 1366  
1367 1367  == 4.12 Clear Flash Record ==
1368 1368  
1607 +
1369 1369  Feature: Clear flash storage for data log feature.
1370 1370  
1371 1371  
... ... @@ -1376,15 +1376,17 @@
1376 1376  
1377 1377  (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1378 1378  
1379 -* Example: 0xA301 ~/~/Same as AT+CLRDTA
1618 +* Example: 0xA301  ~/~/  Same as AT+CLRDTA
1380 1380  
1381 1381  
1382 1382  
1383 1383  == 4.13 Auto Send None-ACK messages ==
1384 1384  
1624 +
1385 1385  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1386 1386  Feature: LHT65N will wait for ACK for each uplink, If LHT65N doesn't get ACK from the IoT server, it will consider the message doesn't arrive server and store it. LHT65N keeps sending messages in normal periodically. Once LHT65N gets ACK from a server, it will consider the network is ok and start to send the not-arrive message.
1387 1387  
1628 +
1388 1388  (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1389 1389  
1390 1390  (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
... ... @@ -1396,14 +1396,16 @@
1396 1396  
1397 1397  (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1398 1398  
1399 -* Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1640 +* Example: 0x3401 ~/~/  Same as AT+PNACKMD=1
1400 1400  
1401 1401  
1402 1402  
1403 1403  = 5. Battery & How to replace =
1404 1404  
1646 +
1405 1405  == 5.1 Battery Type ==
1406 1406  
1649 +
1407 1407  (((
1408 1408  (((
1409 1409  LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters.
... ... @@ -1424,8 +1424,10 @@
1424 1424  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1425 1425  
1426 1426  
1670 +
1427 1427  == 5.2 Replace Battery ==
1428 1428  
1673 +
1429 1429  LHT65N has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery. Any brand should be ok.
1430 1430  
1431 1431  [[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"]]
... ... @@ -1433,6 +1433,7 @@
1433 1433  
1434 1434  == 5.3 Battery Life Analyze ==
1435 1435  
1681 +
1436 1436  (((
1437 1437  Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life:
1438 1438  [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
... ... @@ -1450,8 +1450,10 @@
1450 1450  
1451 1451  = 6. FAQ =
1452 1452  
1699 +
1453 1453  == 6.1 How to use AT Command? ==
1454 1454  
1702 +
1455 1455  LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to connect to LHT65 for using AT command, as below.
1456 1456  
1457 1457  [[image:image-20220530085651-1.png||_mstalt="429949"]]
... ... @@ -1462,7 +1462,6 @@
1462 1462  * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1463 1463  * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1464 1464  * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1465 -* (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1466 1466  
1467 1467  (((
1468 1468  In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**) (%%)to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
... ... @@ -1670,40 +1670,43 @@
1670 1670  AT+PID:  Get or set the PID
1671 1671  
1672 1672  
1920 +
1673 1673  == 6.2 Where to use AT commands and Downlink commands ==
1674 1674  
1675 -(% _msthash="506131" _msttexthash="14585714" %)
1676 -AT commands：
1677 1677  
1924 +**AT commands：**
1925 +
1678 1678  [[image:image-20220620153708-1.png||height="603" width="723"]]
1679 1679  
1680 -(% _msthash="506132" _msttexthash="337922" %)
1681 -Downlink commands:
1682 1682  
1929 +**Downlink commands:**
1683 1683  
1684 -(% _msthash="506133" _msttexthash="33046" %)
1685 -**TTN:**
1686 1686  
1932 +
1933 +(% style="color:blue" %)**TTN:**
1934 +
1687 1687  [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1688 1688  
1689 1689  
1690 -(% _msthash="506134" _msttexthash="11113791" %)
1691 -**Helium：**
1692 1692  
1939 +(% style="color:blue" %)**Helium：**
1940 +
1693 1693  [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1694 1694  
1695 1695  
1696 -(% _msthash="506135" _msttexthash="4159844" %)
1697 -**Chirpstack:The downlink window will not be displayed until the network is accessed**
1698 1698  
1945 +(% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
1946 +
1947 +
1699 1699  [[image:image-20220615094850-6.png||_mstalt="433082"]]
1700 1700  
1950 +
1701 1701  [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1702 1702  
1703 1703  
1704 -(% _msthash="506136" _msttexthash="39286" %)
1705 -**Aws:**
1706 1706  
1955 +(% style="color:blue" %)**Aws:**
1956 +
1707 1707  [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1708 1708  
1709 1709  
... ... @@ -1710,12 +1710,14 @@
1710 1710  
1711 1711  == 6.3 How to change the uplink interval？ ==
1712 1712  
1713 -[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_msthash="506137" _msttexthash="5712018"]]
1714 1714  
1964 +Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_msthash="506137" _msttexthash="5712018" style="background-color: rgb(255, 255, 255);"]]
1715 1715  
1716 1716  
1967 +
1717 1717  == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1718 1718  
1970 +
1719 1719  [[image:image-20220615153355-1.png]]
1720 1720  
1721 1721  [[image:1655802313617-381.png]]
... ... @@ -1743,6 +1743,7 @@
1743 1743  [[image:image-20220615170542-5.png]]
1744 1744  
1745 1745  
1998 +
1746 1746  (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1747 1747  
1748 1748  (% _msthash="506146" _msttexthash="52173160" %)
... ... @@ -1756,6 +1756,7 @@
1756 1756  [[image:image-20220621170938-2.png]]
1757 1757  
1758 1758  
2012 +
1759 1759  (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1760 1760  
1761 1761  [[image:image-20220615171334-6.png]]
... ... @@ -1772,13 +1772,16 @@
1772 1772  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1773 1773  
1774 1774  
2029 +
1775 1775  == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1776 1776  
2032 +
1777 1777  [[image:image-20220623110706-1.png]]
1778 1778  
1779 1779  
1780 1780  [[image:image-20220623112117-4.png||height="459" width="343"]]
1781 1781  
2038 +
1782 1782  (((
1783 1783  In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600** (%%)to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**(% style="color:red" %))(%%) to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
1784 1784  )))
... ... @@ -1789,15 +1789,19 @@
1789 1789  [[image:image-20220615154519-3.png||height="672" width="807"]]
1790 1790  
1791 1791  
2049 +
1792 1792  == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1793 1793  
2052 +
1794 1794  [[image:image-20220623110706-1.png]]
1795 1795  
2055 +
1796 1796  (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1797 1797  
1798 1798  [[image:image-20220615170542-5.png]]
1799 1799  
1800 1800  
2061 +
1801 1801  (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1802 1802  
1803 1803  (% _msthash="506146" _msttexthash="52173160" %)
... ... @@ -1809,6 +1809,8 @@
1809 1809  (% _msthash="506146" _msttexthash="52173160" %)
1810 1810  Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1811 1811  
2073 +
2074 +
1812 1812  (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1813 1813  
1814 1814  [[image:image-20220615171334-6.png]]
... ... @@ -1825,6 +1825,7 @@
1825 1825  Finally,restart reset device again
1826 1826  
1827 1827  
2091 +
1828 1828  = 7. Order Info =
1829 1829  
1830 1830  
... ... @@ -1832,20 +1832,13 @@
1832 1832  
1833 1833  (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1834 1834  
1835 -(% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1836 -
2099 +* (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1837 1837  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1838 -
1839 1839  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1840 -
1841 1841  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1842 -
1843 1843  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1844 -
1845 1845  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1846 -
1847 1847  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1848 -
1849 1849  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1850 1850  
1851 1851  (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
... ... @@ -1852,8 +1852,6 @@
1852 1852  
1853 1853  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1854 1854  
1855 -
1856 -
1857 1857  = 8. Packing Info =
1858 1858  
1859 1859  
... ... @@ -1867,18 +1867,19 @@
1867 1867  * Device Size:  10 x 10 x 3.5 cm
1868 1868  * Device Weight: 120.5g
1869 1869  
1870 -
1871 -
1872 1872  = 9. Reference material =
1873 1873  
2127 +
1874 1874  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1875 1875  
1876 -
1877 -
1878 1878  = 10. FCC Warning =
1879 1879  
2132 +
1880 1880  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1881 1881  
1882 1882  (1) This device may not cause harmful interference；
1883 1883  
1884 1884  (2) this device must accept any interference received, including interference that may cause undesired operation.
2138 +
2139 +
2140 +
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