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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 181.1
edited by Bei Jinggeng
on 2022/06/28 15:07
Change comment: Uploaded new attachment "image-20220628150714-4.png", version {1}

Summary

Details

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Content
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60 60  
61 61  
62 62  
63 -
64 64  == 1.3 Specification ==
65 65  
66 66  
... ... @@ -87,7 +87,6 @@
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? ==
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270 270  * 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.)
271 271  
272 272  
273 -
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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302 302  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
303 303  
304 304  
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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314 314  * Temperature:  (0xF5C6-65536)/100=-26.18℃
315 315  
316 316  
317 -
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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322 322  * Humidity:    0x025C/10=60.4%
323 323  
324 324  
325 -
326 326  === 2.4.5 Ext # ===
327 327  
328 328  Bytes for External Sensor:
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476 476  * 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)
477 477  
478 478  
479 -
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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552 552  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.
553 553  
554 554  
555 -
556 556  === 2.6.2 Unix TimeStamp ===
557 557  
558 558  
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1009 1009  * For each success downlink, the PURPLE LED will blink once
1010 1010  
1011 1011  
1012 -
1013 1013  == 2.9 installation ==
1014 1014  
1015 1015  (% _mstvisible="1" %)
... ... @@ -1023,8 +1023,24 @@
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
1017 +**1m long breakout cable for LHT65N. Features:**
1027 1027  
1019 +* (((
1020 +Use for AT Command， works for both LHT52/LHT65N
1021 +)))
1022 +* (((
1023 +Update firmware for LHT65N, works for both LHT52/LHT65N
1024 +)))
1025 +* (((
1026 +Supports ADC mode to monitor external ADC
1027 +)))
1028 +* (((
1029 +Supports Interrupt mode
1030 +)))
1031 +* (((
1032 +Exposed All pins from the LHT65N Type-C connector.
1033 +)))
1034 +
1028 1028  [[image:image-20220619092421-3.png||height="371" width="529"]]
1029 1029  
1030 1030  
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1045 1045  * Working voltage 2.35v ~~ 5v
1046 1046  
1047 1047  
1048 -
1049 1049  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1050 1050  
1051 1051  (((
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1112 1112  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1113 1113  
1114 1114  
1115 -
1116 1116  == 4.2 Set External Sensor Mode ==
1117 1117  
1118 1118  Feature: Change External Sensor Mode.
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1135 1135  * 0xA20702003c: Same as AT+SETCNT=60
1136 1136  
1137 1137  
1138 -
1139 1139  == 4.3 Enable/Disable uplink Temperature probe ID ==
1140 1140  
1141 1141  (((
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1164 1164  * **0xA801**     **~-~->** AT+PID=1
1165 1165  
1166 1166  
1167 -
1168 1168  == 4.4 Set Password ==
1169 1169  
1170 1170  Feature: Set device password, max 9 digits
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1212 1212  * There is no downlink command to set to Sleep mode.
1213 1213  
1214 1214  
1215 -
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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1310 1310  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1311 1311  
1312 1312  
1313 -
1314 1314  == 4.13 Auto Send None-ACK messages ==
1315 1315  
1316 1316  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
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1330 1330  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1331 1331  
1332 1332  
1333 -
1334 1334  = 5. Battery & How to replace =
1335 1335  
1336 1336  == 5.1 Battery Type ==
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1784 1784  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1785 1785  
1786 1786  
1787 -
1788 1788  = 8. Packing Info =
1789 1789  
1790 1790  
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1799 1799  * Device Weight: 120.5g
1800 1800  
1801 1801  
1802 -
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"]]
1806 1806  
1807 1807  
1808 -
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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