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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 189.1
edited by Bei Jinggeng
on 2022/07/06 13:48
Change comment: There is no comment for this version

Summary

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Author
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1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
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59 59  * Datalog feature
60 60  
61 61  
62 +
62 62  == 1.3 Specification ==
63 63  
64 64  
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84 84  * Operating Range: -55 °C ~~ 125 °C
85 85  
86 86  
88 +
87 87  = 2. Connect LHT65N to IoT Server =
88 88  
89 89  == 2.1 How does LHT65N work? ==
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267 267  
268 268  
269 269  
270 -
271 -
272 272  === 2.4.1 Decoder in TTN V3 ===
273 273  
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.
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301 301  
302 302  
303 303  
304 -
305 -
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  
318 -
319 -
320 320  === 2.4.4 Built-in Humidity ===
321 321  
322 322  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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325 325  
326 326  
327 327  
328 -
329 -
330 330  === 2.4.5 Ext # ===
331 331  
332 332  Bytes for External Sensor:
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481 481  
482 482  
483 483  
484 -
485 -
486 486  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
487 487  
488 488  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
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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  
488 +For example:
496 496  
490 +AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
497 497  
492 +
493 +Or use **downlink command A2** to set the same.
494 +
495 +The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
496 +
497 +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.
498 +
499 +[[image:image-20220628150112-1.png||height="241" width="285"]]
500 +
501 +
502 +When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
503 +
504 +[[image:image-20220628150714-4.png]]
505 +
506 +
507 +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.
508 +
509 +1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
510 +
511 +[[image:image-20220628151005-5.png]]
512 +
513 +
514 +2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
515 +
516 +[[image:image-20220628151056-6.png]]
517 +
518 +
519 +3) Within range
520 +
521 +[[image:image-20220628151143-7.png]]
522 +
523 +
524 +
498 498  == 2.5 Show data on Datacake ==
499 499  
500 500  (((
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554 554  
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.
584 +1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
585 +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.
559 559  
587 +Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
560 560  
589 +[[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  
... ... @@ -1001,8 +1001,21 @@
1001 1001  )))
1002 1002  )))
1003 1003  
1032 +(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1004 1004  
1034 +Total bytes: 8 bytes
1005 1005  
1036 +**Example:**AA0100010001003C
1037 +
1038 +WMOD=01
1039 +
1040 +CITEMP=0001
1041 +
1042 +TEMPlow=0001
1043 +
1044 +TEMPhigh=003C
1045 +
1046 +
1006 1006  == 2.8 LED Indicator ==
1007 1007  
1008 1008  The LHT65 has a triple color LED which for easy showing different stage .
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1018 1018  
1019 1019  
1020 1020  
1021 -
1022 -
1023 1023  == 2.9 installation ==
1024 1024  
1025 1025  (% _mstvisible="1" %)
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1033 1033  
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
1075 +**1m long breakout cable for LHT65N. Features:**
1037 1037  
1077 +* (((
1078 +Use for AT Command， works for both LHT52/LHT65N
1079 +)))
1080 +* (((
1081 +Update firmware for LHT65N, works for both LHT52/LHT65N
1082 +)))
1083 +* (((
1084 +Supports ADC mode to monitor external ADC
1085 +)))
1086 +* (((
1087 +Supports Interrupt mode
1088 +)))
1089 +* (((
1090 +Exposed All pins from the LHT65N Type-C connector.
1091 +)))
1092 +
1038 1038  [[image:image-20220619092421-3.png||height="371" width="529"]]
1039 1039  
1040 1040  
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1056 1056  
1057 1057  
1058 1058  
1059 -
1060 -
1061 1061  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1062 1062  
1063 1063  (((
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1125 1125  
1126 1126  
1127 1127  
1128 -
1129 -
1130 1130  == 4.2 Set External Sensor Mode ==
1131 1131  
1132 1132  Feature: Change External Sensor Mode.
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1150 1150  
1151 1151  
1152 1152  
1153 -
1154 -
1155 1155  == 4.3 Enable/Disable uplink Temperature probe ID ==
1156 1156  
1157 1157  (((
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1181 1181  
1182 1182  
1183 1183  
1184 -
1185 -
1186 1186  == 4.4 Set Password ==
1187 1187  
1188 1188  Feature: Set device password, max 9 digits
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1231 1231  
1232 1232  
1233 1233  
1234 -
1235 -
1236 1236  == 4.7 Set system time ==
1237 1237  
1238 1238  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
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1331 1331  
1332 1332  
1333 1333  
1334 -
1335 -
1336 1336  == 4.13 Auto Send None-ACK messages ==
1337 1337  
1338 1338  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
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1353 1353  
1354 1354  
1355 1355  
1356 -
1357 -
1358 1358  = 5. Battery & How to replace =
1359 1359  
1360 1360  == 5.1 Battery Type ==
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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  )))
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1728 1728  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1729 1729  
1730 1730  
1771 +== 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1731 1731  
1773 +[[image:image-20220623110706-1.png]]
1774 +
1775 +
1776 +[[image:image-20220623112117-4.png||height="459" width="343"]]
1777 +
1778 +(((
1779 +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.
1780 +)))
1781 +
1782 +
1783 +Input password and ATZ to activate LHT65N,As shown below:
1784 +
1785 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1786 +
1787 +
1788 +== 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1789 +
1790 +[[image:image-20220623110706-1.png]]
1791 +
1792 +(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1793 +
1794 +[[image:image-20220615170542-5.png]]
1795 +
1796 +
1797 +(% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1798 +
1799 +(% _msthash="506146" _msttexthash="52173160" %)
1800 +First connect the four lines；
1801 +
1802 +(% _msthash="506146" _msttexthash="52173160" %)
1803 +[[image:image-20220623113959-5.png||height="528" width="397"]]
1804 +
1805 +(% _msthash="506146" _msttexthash="52173160" %)
1806 +Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1807 +
1808 +(% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1809 +
1810 +[[image:image-20220615171334-6.png]]
1811 +
1812 +
1813 +Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1814 +
1815 +
1816 +When this interface appears, it indicates that the download has been completed.
1817 +
1818 +[[image:image-20220620160723-8.png]]
1819 +
1820 +
1821 +Finally,restart reset device again
1822 +
1823 +
1732 1732  = 7. Order Info =
1733 1733  
1734 1734  
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1758 1758  
1759 1759  
1760 1760  
1761 -
1762 -
1763 1763  = 8. Packing Info =
1764 1764  
1765 1765  
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1775 1775  
1776 1776  
1777 1777  
1778 -
1779 -
1780 1780  = 9. Reference material =
1781 1781  
1782 1782  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
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1783 1783  
1784 1784  
1785 1785  
1786 -
1787 -
1788 1788  = 10. FCC Warning =
1789 1789  
1790 1790  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
image-20220623110706-1.png
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