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Last modified by Xiaoling on 2023/07/18 10:12
From version 170.34
edited by Xiaoling
on 2022/06/22 11:29
Change comment: There is no comment for this version
To version 190.1
edited by Edwin Chen
on 2022/08/23 10:24
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
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1 -XWiki.Xiaoling
1 +XWiki.Edwin
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  
... ... @@ -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
... ... @@ -56,9 +56,10 @@
56 56  * Built-in Temperature & Humidity sensor
57 57  * Optional External Sensors
58 58  * Tri-color LED to indicate working status
59 -* Datalog feature
60 +* Datalog feature (Max 3328 records)
60 60  
61 61  
63 +
62 62  == 1.3 Specification ==
63 63  
64 64  
... ... @@ -84,10 +84,12 @@
84 84  * Operating Range: -55 °C ~~ 125 °C
85 85  
86 86  
89 +
87 87  = 2. Connect LHT65N to IoT Server =
88 88  
89 89  == 2.1 How does LHT65N work? ==
90 90  
94 +
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  
104 +
100 100  == 2.2 How to Activate LHT65N? ==
101 101  
107 +
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  
132 +
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  
148 +
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  
174 +(% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
167 167  
176 +
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  
190 +
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  
202 +
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  )))
... ... @@ -263,14 +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.)
277 +* 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  
268 268  
269 269  
270 -
271 -
272 272  === 2.4.1 Decoder in TTN V3 ===
273 273  
283 +
274 274  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.
275 275  
276 276  Below is the position to put the decoder and LHT65N decoder can be download from here:
... ... @@ -286,6 +286,7 @@
286 286  
287 287  === 2.4.2 BAT-Battery Info ===
288 288  
299 +
289 289  These two bytes of BAT include the battery state and the actually voltage
290 290  
291 291  [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
... ... @@ -301,10 +301,9 @@
301 301  
302 302  
303 303  
304 -
305 -
306 306  === 2.4.3 Built-in Temperature ===
307 307  
317 +
308 308  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
309 309  
310 310  * Temperature:  0x0ABB/100=27.47℃
... ... @@ -315,10 +315,9 @@
315 315  
316 316  
317 317  
318 -
319 -
320 320  === 2.4.4 Built-in Humidity ===
321 321  
330 +
322 322  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
323 323  
324 324  * Humidity:    0x025C/10=60.4%
... ... @@ -325,10 +325,9 @@
325 325  
326 326  
327 327  
328 -
329 -
330 330  === 2.4.5 Ext # ===
331 331  
339 +
332 332  Bytes for External Sensor:
333 333  
334 334  [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
... ... @@ -337,6 +337,7 @@
337 337  
338 338  === 2.4.6 Ext value ===
339 339  
348 +
340 340  ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
341 341  
342 342  
... ... @@ -360,6 +360,7 @@
360 360  
361 361  ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
362 362  
372 +
363 363  (((
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  )))
... ... @@ -473,18 +473,19 @@
473 473  
474 474  * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
475 475  
476 -[[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
486 +(% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
487 +|(% 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]**
488 +|(% 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)
477 477  
478 -* Poll Message Flag:  1: This message is a poll message reply, 0: means this is a normal uplink.
479 -* 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.
480 -* 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)
490 +* (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
491 +* (% 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.
492 +* (% 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)
481 481  
482 482  
483 483  
484 -
485 -
486 486  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
487 487  
498 +
488 488  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
489 489  
490 490  be used to power the external ADC sensor; user can control the power on time for this
... ... @@ -493,10 +493,46 @@
493 493  
494 494  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
495 495  
507 +For example:
496 496  
509 +AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
497 497  
511 +
512 +Or use **downlink command A2** to set the same.
513 +
514 +The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
515 +
516 +When the measured output voltage of the sensor is not within the range of 0.1V and 1.1V, the output voltage terminal of the sensor shall be divided The example in the following figure is to reduce the output voltage of the sensor by three times If it is necessary to reduce more times, calculate according to the formula in the figure and connect the corresponding resistance in series.
517 +
518 +[[image:image-20220628150112-1.png||height="241" width="285"]]
519 +
520 +
521 +When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
522 +
523 +[[image:image-20220628150714-4.png]]
524 +
525 +
526 +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.
527 +
528 +1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
529 +
530 +[[image:image-20220628151005-5.png]]
531 +
532 +
533 +2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
534 +
535 +[[image:image-20220628151056-6.png]]
536 +
537 +
538 +3) Within range
539 +
540 +[[image:image-20220628151143-7.png]]
541 +
542 +
543 +
498 498  == 2.5 Show data on Datacake ==
499 499  
546 +
500 500  (((
501 501  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:
502 502  )))
... ... @@ -544,6 +544,7 @@
544 544  
545 545  == 2.6 Datalog Feature ==
546 546  
594 +
547 547  (((
548 548  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.
549 549  )))
... ... @@ -552,15 +552,17 @@
552 552  
553 553  === 2.6.1 Ways to get datalog via LoRaWAN ===
554 554  
603 +
555 555  There are two methods:
556 556  
557 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
558 -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.
606 +1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
607 +1. 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 message and store the sensor data, and it will send all messages (10s interval) after the network recovery. note: a) LHT65N will do ack check for data records sending to make sure every data arrive server. b) LHT65N will send data in CONFIRMED Mode when PNACKMD=1, but it won't re-transmit the same packet , it will just mark it as NONE-ACK and resend after network is detected.
559 559  
609 +Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
560 560  
611 +[[image:image-20220703111700-2.png||height="381" width="1119"]]
561 561  
562 562  
563 -
564 564  === 2.6.2 Unix TimeStamp ===
565 565  
566 566  
... ... @@ -583,6 +583,7 @@
583 583  
584 584  === 2.6.3 Set Device Time ===
585 585  
636 +
586 586  (((
587 587  There are two ways to set device's time:
588 588  )))
... ... @@ -600,7 +600,7 @@
600 600  )))
601 601  
602 602  (((
603 -(% 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.
654 +(% 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.**
604 604  )))
605 605  
606 606  (((
... ... @@ -619,6 +619,7 @@
619 619  
620 620  === 2.6.4 Poll sensor value ===
621 621  
673 +
622 622  User can poll sensor value based on timestamps from the server. Below is the downlink command.
623 623  
624 624  [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
... ... @@ -636,6 +636,7 @@
636 636  
637 637  === 2.6.5 Datalog Uplink payload ===
638 638  
691 +
639 639  (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
640 640  The Datalog poll reply uplink will use below payload format.
641 641  
... ... @@ -642,6 +642,9 @@
642 642  (% _mstvisible="1" %)
643 643  (((
644 644  (% _mstvisible="2" %)
698 +
699 +
700 +(% _mstvisible="2" %)
645 645  (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
646 646  )))
647 647  
... ... @@ -904,7 +904,7 @@
904 904  (% _mstvisible="1" %)
905 905  (((
906 906  (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
907 - Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
963 + Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
908 908  )))
909 909  
910 910  (% _mstvisible="1" %)
... ... @@ -966,12 +966,15 @@
966 966  
967 967  == 2.7 Alarm Mode ==
968 968  
1025 +
969 969  (((
970 970  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.
971 971  )))
972 972  
973 973  (((
974 -(% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
1031 +(% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**
1032 +
1033 +
975 975  )))
976 976  
977 977  (((
... ... @@ -1001,10 +1001,25 @@
1001 1001  )))
1002 1002  )))
1003 1003  
1063 +(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1004 1004  
1065 +Total bytes: 8 bytes
1005 1005  
1067 +**Example:**AA0100010001003C
1068 +
1069 +WMOD=01
1070 +
1071 +CITEMP=0001
1072 +
1073 +TEMPlow=0001
1074 +
1075 +TEMPhigh=003C
1076 +
1077 +
1078 +
1006 1006  == 2.8 LED Indicator ==
1007 1007  
1081 +
1008 1008  The LHT65 has a triple color LED which for easy showing different stage .
1009 1009  
1010 1010  While user press ACT button, the LED will work as per LED status with ACT button.
... ... @@ -1018,10 +1018,9 @@
1018 1018  
1019 1019  
1020 1020  
1021 -
1022 -
1023 1023  == 2.9 installation ==
1024 1024  
1097 +
1025 1025  (% _mstvisible="1" %)
1026 1026  [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1027 1027  
... ... @@ -1031,10 +1031,31 @@
1031 1031  
1032 1032  == 3.1 E2 Extension Cable ==
1033 1033  
1107 +
1034 1034  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1035 1035  
1036 -1m long breakout cable for LHT65N
1037 1037  
1111 +**1m long breakout cable for LHT65N. Features:**
1112 +
1113 +* (((
1114 +Use for AT Command， works for both LHT52/LHT65N
1115 +)))
1116 +* (((
1117 +Update firmware for LHT65N, works for both LHT52/LHT65N
1118 +)))
1119 +* (((
1120 +Supports ADC mode to monitor external ADC
1121 +)))
1122 +* (((
1123 +Supports Interrupt mode
1124 +)))
1125 +* (((
1126 +Exposed All pins from the LHT65N Type-C connector.
1127 +
1128 +
1129 +
1130 +)))
1131 +
1038 1038  [[image:image-20220619092421-3.png||height="371" width="529"]]
1039 1039  
1040 1040  
... ... @@ -1056,10 +1056,9 @@
1056 1056  
1057 1057  
1058 1058  
1059 -
1060 -
1061 1061  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1062 1062  
1155 +
1063 1063  (((
1064 1064  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1065 1065  )))
... ... @@ -1104,10 +1104,13 @@
1104 1104  )))
1105 1105  
1106 1106  
1200 +
1107 1107  == 4.1 Set Transmit Interval Time ==
1108 1108  
1203 +
1109 1109  Feature: Change LoRaWAN End Node Transmit Interval.
1110 1110  
1206 +
1111 1111  (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1112 1112  
1113 1113  [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
... ... @@ -1125,12 +1125,12 @@
1125 1125  
1126 1126  
1127 1127  
1128 -
1129 -
1130 1130  == 4.2 Set External Sensor Mode ==
1131 1131  
1226 +
1132 1132  Feature: Change External Sensor Mode.
1133 1133  
1229 +
1134 1134  (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1135 1135  
1136 1136  [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
... ... @@ -1150,10 +1150,9 @@
1150 1150  
1151 1151  
1152 1152  
1153 -
1154 -
1155 1155  == 4.3 Enable/Disable uplink Temperature probe ID ==
1156 1156  
1251 +
1157 1157  (((
1158 1158  Feature: If PID is enabled, device will send the temperature probe ID on:
1159 1159  )))
... ... @@ -1167,6 +1167,8 @@
1167 1167  
1168 1168  (((
1169 1169  PID is default set to disable (0)
1265 +
1266 +
1170 1170  )))
1171 1171  
1172 1172  (% style="color:#4f81bd" %)**AT Command:**
... ... @@ -1181,12 +1181,12 @@
1181 1181  
1182 1182  
1183 1183  
1184 -
1185 -
1186 1186  == 4.4 Set Password ==
1187 1187  
1283 +
1188 1188  Feature: Set device password, max 9 digits
1189 1189  
1286 +
1190 1190  (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1191 1191  
1192 1192  [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
... ... @@ -1200,8 +1200,10 @@
1200 1200  
1201 1201  == 4.5 Quit AT Command ==
1202 1202  
1300 +
1203 1203  Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1204 1204  
1303 +
1205 1205  (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1206 1206  
1207 1207  [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
... ... @@ -1215,6 +1215,7 @@
1215 1215  
1216 1216  == 4.6 Set to sleep mode ==
1217 1217  
1317 +
1218 1218  Feature: Set device to sleep mode
1219 1219  
1220 1220  * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
... ... @@ -1231,12 +1231,12 @@
1231 1231  
1232 1232  
1233 1233  
1234 -
1235 -
1236 1236  == 4.7 Set system time ==
1237 1237  
1336 +
1238 1238  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1239 1239  
1339 +
1240 1240  (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1241 1241  
1242 1242  [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
... ... @@ -1250,6 +1250,7 @@
1250 1250  
1251 1251  == 4.8 Set Time Sync Mode ==
1252 1252  
1353 +
1253 1253  (((
1254 1254  Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1255 1255  )))
... ... @@ -1256,6 +1256,8 @@
1256 1256  
1257 1257  (((
1258 1258  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.
1360 +
1361 +
1259 1259  )))
1260 1260  
1261 1261  (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
... ... @@ -1272,8 +1272,10 @@
1272 1272  
1273 1273  == 4.9 Set Time Sync Interval ==
1274 1274  
1378 +
1275 1275  Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1276 1276  
1381 +
1277 1277  (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1278 1278  
1279 1279  [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
... ... @@ -1287,8 +1287,10 @@
1287 1287  
1288 1288  == 4.10 Print data entries base on page. ==
1289 1289  
1395 +
1290 1290  Feature: Print the sector data from start page to stop page (max is 416 pages).
1291 1291  
1398 +
1292 1292  (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1293 1293  
1294 1294  [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
... ... @@ -1302,8 +1302,10 @@
1302 1302  
1303 1303  == 4.11 Print last few data entries. ==
1304 1304  
1412 +
1305 1305  Feature: Print the last few data entries
1306 1306  
1415 +
1307 1307  (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1308 1308  
1309 1309  [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
... ... @@ -1317,6 +1317,7 @@
1317 1317  
1318 1318  == 4.12 Clear Flash Record ==
1319 1319  
1429 +
1320 1320  Feature: Clear flash storage for data log feature.
1321 1321  
1322 1322  
... ... @@ -1331,13 +1331,13 @@
1331 1331  
1332 1332  
1333 1333  
1334 -
1335 -
1336 1336  == 4.13 Auto Send None-ACK messages ==
1337 1337  
1446 +
1338 1338  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1339 1339  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.
1340 1340  
1450 +
1341 1341  (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1342 1342  
1343 1343  (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
... ... @@ -1353,12 +1353,11 @@
1353 1353  
1354 1354  
1355 1355  
1356 -
1357 -
1358 1358  = 5. Battery & How to replace =
1359 1359  
1360 1360  == 5.1 Battery Type ==
1361 1361  
1470 +
1362 1362  (((
1363 1363  (((
1364 1364  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.
... ... @@ -1379,8 +1379,10 @@
1379 1379  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1380 1380  
1381 1381  
1491 +
1382 1382  == 5.2 Replace Battery ==
1383 1383  
1494 +
1384 1384  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.
1385 1385  
1386 1386  [[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"]]
... ... @@ -1388,6 +1388,7 @@
1388 1388  
1389 1389  == 5.3 Battery Life Analyze ==
1390 1390  
1502 +
1391 1391  (((
1392 1392  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:
1393 1393  [[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]]
... ... @@ -1405,8 +1405,10 @@
1405 1405  
1406 1406  = 6. FAQ =
1407 1407  
1520 +
1408 1408  == 6.1 How to use AT Command? ==
1409 1409  
1523 +
1410 1410  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.
1411 1411  
1412 1412  [[image:image-20220530085651-1.png||_mstalt="429949"]]
... ... @@ -1419,7 +1419,6 @@
1419 1419  * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1420 1420  * (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1421 1421  
1422 -
1423 1423  (((
1424 1424  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.
1425 1425  )))
... ... @@ -1626,40 +1626,43 @@
1626 1626  AT+PID:  Get or set the PID
1627 1627  
1628 1628  
1742 +
1629 1629  == 6.2 Where to use AT commands and Downlink commands ==
1630 1630  
1631 -(% _msthash="506131" _msttexthash="14585714" %)
1632 -AT commands：
1633 1633  
1746 +**AT commands：**
1747 +
1634 1634  [[image:image-20220620153708-1.png||height="603" width="723"]]
1635 1635  
1636 -(% _msthash="506132" _msttexthash="337922" %)
1637 -Downlink commands:
1638 1638  
1751 +**Downlink commands:**
1639 1639  
1640 -(% _msthash="506133" _msttexthash="33046" %)
1641 -**TTN:**
1642 1642  
1754 +
1755 +(% style="color:blue" %)**TTN:**
1756 +
1643 1643  [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1644 1644  
1645 1645  
1646 -(% _msthash="506134" _msttexthash="11113791" %)
1647 -**Helium：**
1648 1648  
1761 +(% style="color:blue" %)**Helium：**
1762 +
1649 1649  [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1650 1650  
1651 1651  
1652 -(% _msthash="506135" _msttexthash="4159844" %)
1653 -**Chirpstack:The downlink window will not be displayed until the network is accessed**
1654 1654  
1767 +(% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
1768 +
1769 +
1655 1655  [[image:image-20220615094850-6.png||_mstalt="433082"]]
1656 1656  
1772 +
1657 1657  [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1658 1658  
1659 1659  
1660 -(% _msthash="506136" _msttexthash="39286" %)
1661 -**Aws:**
1662 1662  
1777 +(% style="color:blue" %)**Aws:**
1778 +
1663 1663  [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1664 1664  
1665 1665  
... ... @@ -1666,6 +1666,7 @@
1666 1666  
1667 1667  == 6.3 How to change the uplink interval？ ==
1668 1668  
1785 +
1669 1669  [[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"]]
1670 1670  
1671 1671  
... ... @@ -1672,6 +1672,7 @@
1672 1672  
1673 1673  == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1674 1674  
1792 +
1675 1675  [[image:image-20220615153355-1.png]]
1676 1676  
1677 1677  [[image:1655802313617-381.png]]
... ... @@ -1729,6 +1729,66 @@
1729 1729  
1730 1730  
1731 1731  
1850 +== 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1851 +
1852 +
1853 +[[image:image-20220623110706-1.png]]
1854 +
1855 +
1856 +[[image:image-20220623112117-4.png||height="459" width="343"]]
1857 +
1858 +
1859 +(((
1860 +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.
1861 +)))
1862 +
1863 +
1864 +Input password and ATZ to activate LHT65N,As shown below:
1865 +
1866 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1867 +
1868 +
1869 +
1870 +== 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1871 +
1872 +
1873 +[[image:image-20220623110706-1.png]]
1874 +
1875 +
1876 +(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1877 +
1878 +[[image:image-20220615170542-5.png]]
1879 +
1880 +
1881 +(% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1882 +
1883 +(% _msthash="506146" _msttexthash="52173160" %)
1884 +First connect the four lines；
1885 +
1886 +(% _msthash="506146" _msttexthash="52173160" %)
1887 +[[image:image-20220623113959-5.png||height="528" width="397"]]
1888 +
1889 +(% _msthash="506146" _msttexthash="52173160" %)
1890 +Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1891 +
1892 +
1893 +(% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1894 +
1895 +[[image:image-20220615171334-6.png]]
1896 +
1897 +
1898 +Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1899 +
1900 +
1901 +When this interface appears, it indicates that the download has been completed.
1902 +
1903 +[[image:image-20220620160723-8.png]]
1904 +
1905 +
1906 +Finally,restart reset device again
1907 +
1908 +
1909 +
1732 1732  = 7. Order Info =
1733 1733  
1734 1734  
... ... @@ -1757,9 +1757,6 @@
1757 1757  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1758 1758  
1759 1759  
1760 -
1761 -
1762 -
1763 1763  = 8. Packing Info =
1764 1764  
1765 1765  
... ... @@ -1774,19 +1774,15 @@
1774 1774  * Device Weight: 120.5g
1775 1775  
1776 1776  
1777 -
1778 -
1779 -
1780 1780  = 9. Reference material =
1781 1781  
1954 +
1782 1782  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1783 1783  
1784 1784  
1785 -
1786 -
1787 -
1788 1788  = 10. FCC Warning =
1789 1789  
1960 +
1790 1790  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1791 1791  
1792 1792  (1) This device may not cause harmful interference；
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