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Last modified by Xiaoling on 2023/07/18 10:12
From version 188.1
edited by Edwin Chen
on 2022/07/03 11:17
Change comment: There is no comment for this version
To version 196.1
edited by Bei Jinggeng
on 2022/09/06 10:13
Change comment: Uploaded new attachment "image-20220906101320-6.png", version {1}

Summary

Details

Page properties
Author
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1 -XWiki.Edwin
1 +XWiki.Bei
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
... ... @@ -56,11 +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  
62 62  
63 -
64 64  == 1.3 Specification ==
65 65  
66 66  
... ... @@ -87,11 +87,11 @@
87 87  
88 88  
89 89  
90 -
91 91  = 2. Connect LHT65N to IoT Server =
92 92  
93 93  == 2.1 How does LHT65N work? ==
94 94  
94 +
95 95  (((
96 96  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.
97 97  )))
... ... @@ -101,8 +101,10 @@
101 101  )))
102 102  
103 103  
104 +
104 104  == 2.2 How to Activate LHT65N? ==
105 105  
107 +
106 106  (((
107 107  The LHT65N has two working modes:
108 108  )))
... ... @@ -127,6 +127,7 @@
127 127  
128 128  == 2.3 Example to join LoRaWAN network ==
129 129  
132 +
130 130  (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
131 131  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.
132 132  
... ... @@ -142,6 +142,7 @@
142 142  
143 143  === 2.3.1 Step 1: Create Device n TTN ===
144 144  
148 +
145 145  (((
146 146  Create a device in TTN V3 with the OTAA keys from LHT65N.
147 147  )))
... ... @@ -166,9 +166,10 @@
166 166  [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
167 167  
168 168  
169 -Note: LHT65N use same payload as LHT65.
170 170  
174 +(% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
171 171  
176 +
172 172  [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
173 173  
174 174  
... ... @@ -182,6 +182,7 @@
182 182  
183 183  === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
184 184  
190 +
185 185  (((
186 186  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.
187 187  )))
... ... @@ -193,6 +193,7 @@
193 193  
194 194  == 2.4 Uplink Payload ==
195 195  
202 +
196 196  (((
197 197  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.
198 198  )))
... ... @@ -267,13 +267,13 @@
267 267  
268 268  * The First 6 bytes: has fix meanings for every LHT65N.
269 269  * The 7th byte (EXT #): defines the external sensor model.
270 -* 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.)
271 271  
272 272  
273 273  
274 -
275 275  === 2.4.1 Decoder in TTN V3 ===
276 276  
283 +
277 277  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.
278 278  
279 279  Below is the position to put the decoder and LHT65N decoder can be download from here:
... ... @@ -289,6 +289,7 @@
289 289  
290 290  === 2.4.2 BAT-Battery Info ===
291 291  
299 +
292 292  These two bytes of BAT include the battery state and the actually voltage
293 293  
294 294  [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
... ... @@ -304,9 +304,9 @@
304 304  
305 305  
306 306  
307 -
308 308  === 2.4.3 Built-in Temperature ===
309 309  
317 +
310 310  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
311 311  
312 312  * Temperature:  0x0ABB/100=27.47℃
... ... @@ -317,9 +317,9 @@
317 317  
318 318  
319 319  
320 -
321 321  === 2.4.4 Built-in Humidity ===
322 322  
330 +
323 323  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
324 324  
325 325  * Humidity:    0x025C/10=60.4%
... ... @@ -326,9 +326,9 @@
326 326  
327 327  
328 328  
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  )))
... ... @@ -473,17 +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 -
485 485  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
486 486  
498 +
487 487  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
488 488  
489 489  be used to power the external ADC sensor; user can control the power on time for this
... ... @@ -531,6 +531,7 @@
531 531  
532 532  == 2.5 Show data on Datacake ==
533 533  
546 +
534 534  (((
535 535  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:
536 536  )))
... ... @@ -578,6 +578,7 @@
578 578  
579 579  == 2.6 Datalog Feature ==
580 580  
594 +
581 581  (((
582 582  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.
583 583  )))
... ... @@ -586,10 +586,11 @@
586 586  
587 587  === 2.6.1 Ways to get datalog via LoRaWAN ===
588 588  
603 +
589 589  There are two methods:
590 590  
591 591  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
592 -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.
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.
593 593  
594 594  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
595 595  
... ... @@ -618,6 +618,7 @@
618 618  
619 619  === 2.6.3 Set Device Time ===
620 620  
636 +
621 621  (((
622 622  There are two ways to set device's time:
623 623  )))
... ... @@ -635,7 +635,7 @@
635 635  )))
636 636  
637 637  (((
638 -(% 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.**
639 639  )))
640 640  
641 641  (((
... ... @@ -654,6 +654,7 @@
654 654  
655 655  === 2.6.4 Poll sensor value ===
656 656  
673 +
657 657  User can poll sensor value based on timestamps from the server. Below is the downlink command.
658 658  
659 659  [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
... ... @@ -671,6 +671,7 @@
671 671  
672 672  === 2.6.5 Datalog Uplink payload ===
673 673  
691 +
674 674  (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
675 675  The Datalog poll reply uplink will use below payload format.
676 676  
... ... @@ -677,6 +677,9 @@
677 677  (% _mstvisible="1" %)
678 678  (((
679 679  (% _mstvisible="2" %)
698 +
699 +
700 +(% _mstvisible="2" %)
680 680  (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
681 681  )))
682 682  
... ... @@ -939,7 +939,7 @@
939 939  (% _mstvisible="1" %)
940 940  (((
941 941  (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
942 - 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
943 943  )))
944 944  
945 945  (% _mstvisible="1" %)
... ... @@ -1001,12 +1001,15 @@
1001 1001  
1002 1002  == 2.7 Alarm Mode ==
1003 1003  
1025 +
1004 1004  (((
1005 1005  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.
1006 1006  )))
1007 1007  
1008 1008  (((
1009 -(% 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 +
1010 1010  )))
1011 1011  
1012 1012  (((
... ... @@ -1036,10 +1036,25 @@
1036 1036  )))
1037 1037  )))
1038 1038  
1063 +(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1039 1039  
1065 +Total bytes: 8 bytes
1040 1040  
1067 +**Example:**AA0100010001003C
1068 +
1069 +WMOD=01
1070 +
1071 +CITEMP=0001
1072 +
1073 +TEMPlow=0001
1074 +
1075 +TEMPhigh=003C
1076 +
1077 +
1078 +
1041 1041  == 2.8 LED Indicator ==
1042 1042  
1081 +
1043 1043  The LHT65 has a triple color LED which for easy showing different stage .
1044 1044  
1045 1045  While user press ACT button, the LED will work as per LED status with ACT button.
... ... @@ -1053,9 +1053,9 @@
1053 1053  
1054 1054  
1055 1055  
1056 -
1057 1057  == 2.9 installation ==
1058 1058  
1097 +
1059 1059  (% _mstvisible="1" %)
1060 1060  [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1061 1061  
... ... @@ -1065,8 +1065,10 @@
1065 1065  
1066 1066  == 3.1 E2 Extension Cable ==
1067 1067  
1107 +
1068 1068  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1069 1069  
1110 +
1070 1070  **1m long breakout cable for LHT65N. Features:**
1071 1071  
1072 1072  * (((
... ... @@ -1083,6 +1083,9 @@
1083 1083  )))
1084 1084  * (((
1085 1085  Exposed All pins from the LHT65N Type-C connector.
1127 +
1128 +
1129 +
1086 1086  )))
1087 1087  
1088 1088  [[image:image-20220619092421-3.png||height="371" width="529"]]
... ... @@ -1106,9 +1106,9 @@
1106 1106  
1107 1107  
1108 1108  
1109 -
1110 1110  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1111 1111  
1155 +
1112 1112  (((
1113 1113  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1114 1114  )))
... ... @@ -1153,10 +1153,13 @@
1153 1153  )))
1154 1154  
1155 1155  
1200 +
1156 1156  == 4.1 Set Transmit Interval Time ==
1157 1157  
1203 +
1158 1158  Feature: Change LoRaWAN End Node Transmit Interval.
1159 1159  
1206 +
1160 1160  (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1161 1161  
1162 1162  [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
... ... @@ -1174,11 +1174,12 @@
1174 1174  
1175 1175  
1176 1176  
1177 -
1178 1178  == 4.2 Set External Sensor Mode ==
1179 1179  
1226 +
1180 1180  Feature: Change External Sensor Mode.
1181 1181  
1229 +
1182 1182  (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1183 1183  
1184 1184  [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
... ... @@ -1198,9 +1198,9 @@
1198 1198  
1199 1199  
1200 1200  
1201 -
1202 1202  == 4.3 Enable/Disable uplink Temperature probe ID ==
1203 1203  
1251 +
1204 1204  (((
1205 1205  Feature: If PID is enabled, device will send the temperature probe ID on:
1206 1206  )))
... ... @@ -1214,6 +1214,8 @@
1214 1214  
1215 1215  (((
1216 1216  PID is default set to disable (0)
1265 +
1266 +
1217 1217  )))
1218 1218  
1219 1219  (% style="color:#4f81bd" %)**AT Command:**
... ... @@ -1228,11 +1228,12 @@
1228 1228  
1229 1229  
1230 1230  
1231 -
1232 1232  == 4.4 Set Password ==
1233 1233  
1283 +
1234 1234  Feature: Set device password, max 9 digits
1235 1235  
1286 +
1236 1236  (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1237 1237  
1238 1238  [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
... ... @@ -1246,8 +1246,10 @@
1246 1246  
1247 1247  == 4.5 Quit AT Command ==
1248 1248  
1300 +
1249 1249  Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1250 1250  
1303 +
1251 1251  (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1252 1252  
1253 1253  [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
... ... @@ -1261,6 +1261,7 @@
1261 1261  
1262 1262  == 4.6 Set to sleep mode ==
1263 1263  
1317 +
1264 1264  Feature: Set device to sleep mode
1265 1265  
1266 1266  * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
... ... @@ -1277,11 +1277,12 @@
1277 1277  
1278 1278  
1279 1279  
1280 -
1281 1281  == 4.7 Set system time ==
1282 1282  
1336 +
1283 1283  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1284 1284  
1339 +
1285 1285  (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1286 1286  
1287 1287  [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
... ... @@ -1295,6 +1295,7 @@
1295 1295  
1296 1296  == 4.8 Set Time Sync Mode ==
1297 1297  
1353 +
1298 1298  (((
1299 1299  Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1300 1300  )))
... ... @@ -1301,6 +1301,8 @@
1301 1301  
1302 1302  (((
1303 1303  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 +
1304 1304  )))
1305 1305  
1306 1306  (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
... ... @@ -1317,8 +1317,10 @@
1317 1317  
1318 1318  == 4.9 Set Time Sync Interval ==
1319 1319  
1378 +
1320 1320  Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1321 1321  
1381 +
1322 1322  (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1323 1323  
1324 1324  [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
... ... @@ -1332,8 +1332,10 @@
1332 1332  
1333 1333  == 4.10 Print data entries base on page. ==
1334 1334  
1395 +
1335 1335  Feature: Print the sector data from start page to stop page (max is 416 pages).
1336 1336  
1398 +
1337 1337  (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1338 1338  
1339 1339  [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
... ... @@ -1347,8 +1347,10 @@
1347 1347  
1348 1348  == 4.11 Print last few data entries. ==
1349 1349  
1412 +
1350 1350  Feature: Print the last few data entries
1351 1351  
1415 +
1352 1352  (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1353 1353  
1354 1354  [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
... ... @@ -1362,6 +1362,7 @@
1362 1362  
1363 1363  == 4.12 Clear Flash Record ==
1364 1364  
1429 +
1365 1365  Feature: Clear flash storage for data log feature.
1366 1366  
1367 1367  
... ... @@ -1376,12 +1376,13 @@
1376 1376  
1377 1377  
1378 1378  
1379 -
1380 1380  == 4.13 Auto Send None-ACK messages ==
1381 1381  
1446 +
1382 1382  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1383 1383  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.
1384 1384  
1450 +
1385 1385  (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1386 1386  
1387 1387  (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
... ... @@ -1397,11 +1397,11 @@
1397 1397  
1398 1398  
1399 1399  
1400 -
1401 1401  = 5. Battery & How to replace =
1402 1402  
1403 1403  == 5.1 Battery Type ==
1404 1404  
1470 +
1405 1405  (((
1406 1406  (((
1407 1407  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.
... ... @@ -1422,8 +1422,10 @@
1422 1422  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1423 1423  
1424 1424  
1491 +
1425 1425  == 5.2 Replace Battery ==
1426 1426  
1494 +
1427 1427  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.
1428 1428  
1429 1429  [[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"]]
... ... @@ -1431,6 +1431,7 @@
1431 1431  
1432 1432  == 5.3 Battery Life Analyze ==
1433 1433  
1502 +
1434 1434  (((
1435 1435  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:
1436 1436  [[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]]
... ... @@ -1448,8 +1448,10 @@
1448 1448  
1449 1449  = 6. FAQ =
1450 1450  
1520 +
1451 1451  == 6.1 How to use AT Command? ==
1452 1452  
1523 +
1453 1453  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.
1454 1454  
1455 1455  [[image:image-20220530085651-1.png||_mstalt="429949"]]
... ... @@ -1668,40 +1668,43 @@
1668 1668  AT+PID:  Get or set the PID
1669 1669  
1670 1670  
1742 +
1671 1671  == 6.2 Where to use AT commands and Downlink commands ==
1672 1672  
1673 -(% _msthash="506131" _msttexthash="14585714" %)
1674 -AT commands：
1675 1675  
1746 +**AT commands：**
1747 +
1676 1676  [[image:image-20220620153708-1.png||height="603" width="723"]]
1677 1677  
1678 -(% _msthash="506132" _msttexthash="337922" %)
1679 -Downlink commands:
1680 1680  
1751 +**Downlink commands:**
1681 1681  
1682 -(% _msthash="506133" _msttexthash="33046" %)
1683 -**TTN:**
1684 1684  
1754 +
1755 +(% style="color:blue" %)**TTN:**
1756 +
1685 1685  [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1686 1686  
1687 1687  
1688 -(% _msthash="506134" _msttexthash="11113791" %)
1689 -**Helium：**
1690 1690  
1761 +(% style="color:blue" %)**Helium：**
1762 +
1691 1691  [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1692 1692  
1693 1693  
1694 -(% _msthash="506135" _msttexthash="4159844" %)
1695 -**Chirpstack:The downlink window will not be displayed until the network is accessed**
1696 1696  
1767 +(% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
1768 +
1769 +
1697 1697  [[image:image-20220615094850-6.png||_mstalt="433082"]]
1698 1698  
1772 +
1699 1699  [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1700 1700  
1701 1701  
1702 -(% _msthash="506136" _msttexthash="39286" %)
1703 -**Aws:**
1704 1704  
1777 +(% style="color:blue" %)**Aws:**
1778 +
1705 1705  [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1706 1706  
1707 1707  
... ... @@ -1708,6 +1708,7 @@
1708 1708  
1709 1709  == 6.3 How to change the uplink interval？ ==
1710 1710  
1785 +
1711 1711  [[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"]]
1712 1712  
1713 1713  
... ... @@ -1714,6 +1714,7 @@
1714 1714  
1715 1715  == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1716 1716  
1792 +
1717 1717  [[image:image-20220615153355-1.png]]
1718 1718  
1719 1719  [[image:1655802313617-381.png]]
... ... @@ -1770,13 +1770,16 @@
1770 1770  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1771 1771  
1772 1772  
1849 +
1773 1773  == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1774 1774  
1852 +
1775 1775  [[image:image-20220623110706-1.png]]
1776 1776  
1777 1777  
1778 1778  [[image:image-20220623112117-4.png||height="459" width="343"]]
1779 1779  
1858 +
1780 1780  (((
1781 1781  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.
1782 1782  )))
... ... @@ -1787,10 +1787,13 @@
1787 1787  [[image:image-20220615154519-3.png||height="672" width="807"]]
1788 1788  
1789 1789  
1869 +
1790 1790  == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1791 1791  
1872 +
1792 1792  [[image:image-20220623110706-1.png]]
1793 1793  
1875 +
1794 1794  (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1795 1795  
1796 1796  [[image:image-20220615170542-5.png]]
... ... @@ -1807,6 +1807,7 @@
1807 1807  (% _msthash="506146" _msttexthash="52173160" %)
1808 1808  Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1809 1809  
1892 +
1810 1810  (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1811 1811  
1812 1812  [[image:image-20220615171334-6.png]]
... ... @@ -1823,6 +1823,7 @@
1823 1823  Finally,restart reset device again
1824 1824  
1825 1825  
1909 +
1826 1826  = 7. Order Info =
1827 1827  
1828 1828  
... ... @@ -1851,8 +1851,6 @@
1851 1851  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1852 1852  
1853 1853  
1854 -
1855 -
1856 1856  = 8. Packing Info =
1857 1857  
1858 1858  
... ... @@ -1867,17 +1867,15 @@
1867 1867  * Device Weight: 120.5g
1868 1868  
1869 1869  
1870 -
1871 -
1872 1872  = 9. Reference material =
1873 1873  
1954 +
1874 1874  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1875 1875  
1876 1876  
1877 -
1878 -
1879 1879  = 10. FCC Warning =
1880 1880  
1960 +
1881 1881  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1882 1882  
1883 1883  (1) This device may not cause harmful interference；
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