Skip to Content
Last modified by Xiaoling on 2023/07/18 10:12
From version 185.1
edited by Bei Jinggeng
on 2022/06/28 15:12
Change comment: There is no comment for this version
To version 189.8
edited by Xiaoling
on 2022/08/08 16:22
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Bei
1 +XWiki.Xiaoling
Content
... ... @@ -1,5 +1,5 @@
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  
... ... @@ -46,6 +46,7 @@
46 46  
47 47  == 1.2 Features ==
48 48  
49 +
49 49  * Wall mountable
50 50  * LoRaWAN v1.0.3 Class A protocol
51 51  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
... ... @@ -59,6 +59,7 @@
59 59  * Datalog feature
60 60  
61 61  
63 +
62 62  == 1.3 Specification ==
63 63  
64 64  
... ... @@ -69,6 +69,8 @@
69 69  * Long Term Drift: < 0.02 °C/yr
70 70  * Operating Range: -40 ~~ 85 °C
71 71  
74 +
75 +
72 72  **Built-in Humidity Sensor:**
73 73  
74 74  * Resolution: 0.04 %RH
... ... @@ -76,6 +76,8 @@
76 76  * Long Term Drift: < 0.02 °C/yr
77 77  * Operating Range: 0 ~~ 96 %RH
78 78  
83 +
84 +
79 79  **External Temperature Sensor:**
80 80  
81 81  * Resolution: 0.0625 °C
... ... @@ -84,10 +84,12 @@
84 84  * Operating Range: -55 °C ~~ 125 °C
85 85  
86 86  
93 +
87 87  = 2. Connect LHT65N to IoT Server =
88 88  
89 89  == 2.1 How does LHT65N work? ==
90 90  
98 +
91 91  (((
92 92  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.
93 93  )))
... ... @@ -97,8 +97,10 @@
97 97  )))
98 98  
99 99  
108 +
100 100  == 2.2 How to Activate LHT65N? ==
101 101  
111 +
102 102  (((
103 103  The LHT65N has two working modes:
104 104  )))
... ... @@ -123,6 +123,7 @@
123 123  
124 124  == 2.3 Example to join LoRaWAN network ==
125 125  
136 +
126 126  (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
127 127  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.
128 128  
... ... @@ -138,6 +138,7 @@
138 138  
139 139  === 2.3.1 Step 1: Create Device n TTN ===
140 140  
152 +
141 141  (((
142 142  Create a device in TTN V3 with the OTAA keys from LHT65N.
143 143  )))
... ... @@ -162,9 +162,10 @@
162 162  [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
163 163  
164 164  
165 -Note: LHT65N use same payload as LHT65.
166 166  
178 +(% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
167 167  
180 +
168 168  [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
169 169  
170 170  
... ... @@ -178,6 +178,7 @@
178 178  
179 179  === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
180 180  
194 +
181 181  (((
182 182  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.
183 183  )))
... ... @@ -189,6 +189,7 @@
189 189  
190 190  == 2.4 Uplink Payload ==
191 191  
206 +
192 192  (((
193 193  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.
194 194  )))
... ... @@ -263,10 +263,13 @@
263 263  
264 264  * The First 6 bytes: has fix meanings for every LHT65N.
265 265  * The 7th byte (EXT #): defines the external sensor model.
266 -* 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.)
281 +* 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.)
267 267  
283 +
284 +
268 268  === 2.4.1 Decoder in TTN V3 ===
269 269  
287 +
270 270  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.
271 271  
272 272  Below is the position to put the decoder and LHT65N decoder can be download from here:
... ... @@ -282,6 +282,7 @@
282 282  
283 283  === 2.4.2 BAT-Battery Info ===
284 284  
303 +
285 285  These two bytes of BAT include the battery state and the actually voltage
286 286  
287 287  [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
... ... @@ -295,8 +295,11 @@
295 295  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
296 296  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
297 297  
317 +
318 +
298 298  === 2.4.3 Built-in Temperature ===
299 299  
321 +
300 300  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
301 301  
302 302  * Temperature:  0x0ABB/100=27.47℃
... ... @@ -305,14 +305,20 @@
305 305  
306 306  * Temperature:  (0xF5C6-65536)/100=-26.18℃
307 307  
330 +
331 +
308 308  === 2.4.4 Built-in Humidity ===
309 309  
334 +
310 310  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
311 311  
312 312  * Humidity:    0x025C/10=60.4%
313 313  
339 +
340 +
314 314  === 2.4.5 Ext # ===
315 315  
343 +
316 316  Bytes for External Sensor:
317 317  
318 318  [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
... ... @@ -344,6 +344,7 @@
344 344  
345 345  ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
346 346  
375 +
347 347  (((
348 348  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:
349 349  )))
... ... @@ -457,14 +457,19 @@
457 457  
458 458  * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
459 459  
460 -[[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
489 +(% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
490 +|(% style="width:60px" %)**Bits**|(% style="width:90px" %)**7**|(% style="width:100px" %)**6**|(% style="width:90px" %)**5**|(% style="width:100px" %)**4**|(% style="width:60px" %)**[3:0]**
491 +|(% style="width:96px" %)**Status&Ext**|(% style="width:124px" %)None-ACK Flag|(% style="width:146px" %)Poll Message FLAG|(% style="width:109px" %)Sync time OK|(% style="width:143px" %)Unix Time Request|(% style="width:106px" %)Ext: 0b(1001)
461 461  
462 -* Poll Message Flag:  1: This message is a poll message reply, 0: means this is a normal uplink.
463 -* 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.
464 -* 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)
493 +* (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
494 +* (% style="color:blue" %)**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.
495 +* (% 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)
465 465  
497 +
498 +
466 466  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
467 467  
501 +
468 468  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
469 469  
470 470  be used to power the external ADC sensor; user can control the power on time for this
... ... @@ -509,8 +509,10 @@
509 509  [[image:image-20220628151143-7.png]]
510 510  
511 511  
546 +
512 512  == 2.5 Show data on Datacake ==
513 513  
549 +
514 514  (((
515 515  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:
516 516  )))
... ... @@ -558,6 +558,7 @@
558 558  
559 559  == 2.6 Datalog Feature ==
560 560  
597 +
561 561  (((
562 562  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.
563 563  )))
... ... @@ -566,11 +566,17 @@
566 566  
567 567  === 2.6.1 Ways to get datalog via LoRaWAN ===
568 568  
606 +
569 569  There are two methods:
570 570  
571 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
572 -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.
609 +1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
610 +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.
573 573  
612 +Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
613 +
614 +[[image:image-20220703111700-2.png||height="381" width="1119"]]
615 +
616 +
574 574  === 2.6.2 Unix TimeStamp ===
575 575  
576 576  
... ... @@ -593,6 +593,7 @@
593 593  
594 594  === 2.6.3 Set Device Time ===
595 595  
639 +
596 596  (((
597 597  There are two ways to set device's time:
598 598  )))
... ... @@ -610,7 +610,7 @@
610 610  )))
611 611  
612 612  (((
613 -(% 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.
657 +(% 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.**
614 614  )))
615 615  
616 616  (((
... ... @@ -629,6 +629,7 @@
629 629  
630 630  === 2.6.4 Poll sensor value ===
631 631  
676 +
632 632  User can poll sensor value based on timestamps from the server. Below is the downlink command.
633 633  
634 634  [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
... ... @@ -646,6 +646,7 @@
646 646  
647 647  === 2.6.5 Datalog Uplink payload ===
648 648  
694 +
649 649  (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
650 650  The Datalog poll reply uplink will use below payload format.
651 651  
... ... @@ -652,6 +652,9 @@
652 652  (% _mstvisible="1" %)
653 653  (((
654 654  (% _mstvisible="2" %)
701 +
702 +
703 +(% _mstvisible="2" %)
655 655  (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
656 656  )))
657 657  
... ... @@ -779,6 +779,7 @@
779 779  )))
780 780  )))
781 781  
831 +
782 782  (% _mstvisible="1" %)
783 783  (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
784 784  
... ... @@ -914,7 +914,7 @@
914 914  (% _mstvisible="1" %)
915 915  (((
916 916  (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
917 - Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
967 + Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
918 918  )))
919 919  
920 920  (% _mstvisible="1" %)
... ... @@ -1011,8 +1011,21 @@
1011 1011  )))
1012 1012  )))
1013 1013  
1064 +(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1014 1014  
1066 +Total bytes: 8 bytes
1015 1015  
1068 +**Example:**AA0100010001003C
1069 +
1070 +WMOD=01
1071 +
1072 +CITEMP=0001
1073 +
1074 +TEMPlow=0001
1075 +
1076 +TEMPhigh=003C
1077 +
1078 +
1016 1016  == 2.8 LED Indicator ==
1017 1017  
1018 1018  The LHT65 has a triple color LED which for easy showing different stage .
... ... @@ -1026,6 +1026,7 @@
1026 1026  * RED LED when external sensor is not connected
1027 1027  * For each success downlink, the PURPLE LED will blink once
1028 1028  
1092 +
1029 1029  == 2.9 installation ==
1030 1030  
1031 1031  (% _mstvisible="1" %)
... ... @@ -1076,6 +1076,7 @@
1076 1076  * Operating Range: -40 ~~ 125 °C
1077 1077  * Working voltage 2.35v ~~ 5v
1078 1078  
1143 +
1079 1079  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1080 1080  
1081 1081  (((
... ... @@ -1141,6 +1141,7 @@
1141 1141  
1142 1142  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1143 1143  
1209 +
1144 1144  == 4.2 Set External Sensor Mode ==
1145 1145  
1146 1146  Feature: Change External Sensor Mode.
... ... @@ -1162,6 +1162,7 @@
1162 1162  
1163 1163  * 0xA20702003c: Same as AT+SETCNT=60
1164 1164  
1231 +
1165 1165  == 4.3 Enable/Disable uplink Temperature probe ID ==
1166 1166  
1167 1167  (((
... ... @@ -1189,6 +1189,7 @@
1189 1189  * **0xA800**  **~-~->** AT+PID=0
1190 1190  * **0xA801**     **~-~->** AT+PID=1
1191 1191  
1259 +
1192 1192  == 4.4 Set Password ==
1193 1193  
1194 1194  Feature: Set device password, max 9 digits
... ... @@ -1235,6 +1235,7 @@
1235 1235  
1236 1236  * There is no downlink command to set to Sleep mode.
1237 1237  
1306 +
1238 1238  == 4.7 Set system time ==
1239 1239  
1240 1240  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
... ... @@ -1331,6 +1331,7 @@
1331 1331  
1332 1332  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1333 1333  
1403 +
1334 1334  == 4.13 Auto Send None-ACK messages ==
1335 1335  
1336 1336  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
... ... @@ -1349,6 +1349,7 @@
1349 1349  
1350 1350  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1351 1351  
1422 +
1352 1352  = 5. Battery & How to replace =
1353 1353  
1354 1354  == 5.1 Battery Type ==
... ... @@ -1738,7 +1738,7 @@
1738 1738  [[image:image-20220615154519-3.png||height="672" width="807"]]
1739 1739  
1740 1740  
1741 -== 6.6 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1812 +== 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1742 1742  
1743 1743  [[image:image-20220623110706-1.png]]
1744 1744  
... ... @@ -1801,6 +1801,7 @@
1801 1801  
1802 1802  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1803 1803  
1875 +
1804 1804  = 8. Packing Info =
1805 1805  
1806 1806  
... ... @@ -1814,10 +1814,12 @@
1814 1814  * Device Size:  10 x 10 x 3.5 cm
1815 1815  * Device Weight: 120.5g
1816 1816  
1889 +
1817 1817  = 9. Reference material =
1818 1818  
1819 1819  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1820 1820  
1894 +
1821 1821  = 10. FCC Warning =
1822 1822  
1823 1823  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
image-20220703111533-1.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Edwin
Size
... ... @@ -1,0 +1,1 @@
1 +694.5 KB
Content
image-20220703111700-2.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Edwin
Size
... ... @@ -1,0 +1,1 @@
1 +369.4 KB
Content