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Last modified by Xiaoling on 2023/07/18 10:12
From version 176.1
edited by Bei Jinggeng
on 2022/06/23 11:43
Change comment: There is no comment for this version
To version 186.1
edited by Edwin Chen
on 2022/07/03 11:15
Change comment: Uploaded new attachment "image-20220703111533-1.png", version {1}

Summary

Details

Page properties
Author
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1 -XWiki.Bei
1 +XWiki.Edwin
Content
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61 61  
62 62  
63 63  
64 +
64 64  == 1.3 Specification ==
65 65  
66 66  
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88 88  
89 89  
90 90  
92 +
91 91  = 2. Connect LHT65N to IoT Server =
92 92  
93 93  == 2.1 How does LHT65N work? ==
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271 271  
272 272  
273 273  
276 +
277 +
274 274  === 2.4.1 Decoder in TTN V3 ===
275 275  
276 276  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.
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303 303  
304 304  
305 305  
310 +
311 +
306 306  === 2.4.3 Built-in Temperature ===
307 307  
308 308  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
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315 315  
316 316  
317 317  
324 +
325 +
318 318  === 2.4.4 Built-in Humidity ===
319 319  
320 320  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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323 323  
324 324  
325 325  
334 +
335 +
326 326  === 2.4.5 Ext # ===
327 327  
328 328  Bytes for External Sensor:
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477 477  
478 478  
479 479  
490 +
491 +
480 480  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
481 481  
482 482  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
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487 487  
488 488  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
489 489  
502 +For example:
490 490  
504 +AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
491 491  
506 +
507 +Or use **downlink command A2** to set the same.
508 +
509 +The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
510 +
511 +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.
512 +
513 +[[image:image-20220628150112-1.png||height="241" width="285"]]
514 +
515 +
516 +When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
517 +
518 +[[image:image-20220628150714-4.png]]
519 +
520 +
521 +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.
522 +
523 +1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
524 +
525 +[[image:image-20220628151005-5.png]]
526 +
527 +
528 +2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
529 +
530 +[[image:image-20220628151056-6.png]]
531 +
532 +
533 +3) Within range
534 +
535 +[[image:image-20220628151143-7.png]]
536 +
537 +
538 +
492 492  == 2.5 Show data on Datacake ==
493 493  
494 494  (((
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553 553  
554 554  
555 555  
603 +
604 +
556 556  === 2.6.2 Unix TimeStamp ===
557 557  
558 558  
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1010 1010  
1011 1011  
1012 1012  
1062 +
1063 +
1013 1013  == 2.9 installation ==
1014 1014  
1015 1015  (% _mstvisible="1" %)
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1023 1023  
1024 1024  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1025 1025  
1026 -1m long breakout cable for LHT65N
1077 +**1m long breakout cable for LHT65N. Features:**
1027 1027  
1079 +* (((
1080 +Use for AT Command， works for both LHT52/LHT65N
1081 +)))
1082 +* (((
1083 +Update firmware for LHT65N, works for both LHT52/LHT65N
1084 +)))
1085 +* (((
1086 +Supports ADC mode to monitor external ADC
1087 +)))
1088 +* (((
1089 +Supports Interrupt mode
1090 +)))
1091 +* (((
1092 +Exposed All pins from the LHT65N Type-C connector.
1093 +)))
1094 +
1028 1028  [[image:image-20220619092421-3.png||height="371" width="529"]]
1029 1029  
1030 1030  
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1046 1046  
1047 1047  
1048 1048  
1116 +
1117 +
1049 1049  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1050 1050  
1051 1051  (((
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1113 1113  
1114 1114  
1115 1115  
1185 +
1186 +
1116 1116  == 4.2 Set External Sensor Mode ==
1117 1117  
1118 1118  Feature: Change External Sensor Mode.
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1136 1136  
1137 1137  
1138 1138  
1210 +
1211 +
1139 1139  == 4.3 Enable/Disable uplink Temperature probe ID ==
1140 1140  
1141 1141  (((
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1165 1165  
1166 1166  
1167 1167  
1241 +
1242 +
1168 1168  == 4.4 Set Password ==
1169 1169  
1170 1170  Feature: Set device password, max 9 digits
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1213 1213  
1214 1214  
1215 1215  
1291 +
1292 +
1216 1216  == 4.7 Set system time ==
1217 1217  
1218 1218  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
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1311 1311  
1312 1312  
1313 1313  
1391 +
1392 +
1314 1314  == 4.13 Auto Send None-ACK messages ==
1315 1315  
1316 1316  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
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1331 1331  
1332 1332  
1333 1333  
1413 +
1414 +
1334 1334  = 5. Battery & How to replace =
1335 1335  
1336 1336  == 5.1 Battery Type ==
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1720 1720  [[image:image-20220615154519-3.png||height="672" width="807"]]
1721 1721  
1722 1722  
1723 -== 6.6 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1804 +== 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1724 1724  
1725 1725  [[image:image-20220623110706-1.png]]
1726 1726  
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1785 1785  
1786 1786  
1787 1787  
1869 +
1870 +
1788 1788  = 8. Packing Info =
1789 1789  
1790 1790  
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1800 1800  
1801 1801  
1802 1802  
1886 +
1887 +
1803 1803  = 9. Reference material =
1804 1804  
1805 1805  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
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1806 1806  
1807 1807  
1808 1808  
1894 +
1895 +
1809 1809  = 10. FCC Warning =
1810 1810  
1811 1811  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
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