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Last modified by Xiaoling on 2023/07/18 10:12
From version 228.3
edited by Xiaoling
on 2023/02/17 09:28
Change comment: There is no comment for this version
To version 227.1
edited by Bei Jinggeng
on 2023/02/01 11:11
Change comment: There is no comment for this version

Summary

Details

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Author
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1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
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46 46  == 1.2 Features ==
47 47  
48 48  
49 +* Wall mountable
49 49  * LoRaWAN v1.0.3 Class A protocol
50 50  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
51 51  * AT Commands to change parameters
... ... @@ -58,7 +58,6 @@
58 58  * Datalog feature (Max 3328 records)
59 59  
60 60  
61 -
62 62  == 1.3 Specification ==
63 63  
64 64  
... ... @@ -84,7 +84,6 @@
84 84  * Operating Range: -55 °C ~~ 125 °C
85 85  
86 86  
87 -
88 88  = 2. Connect LHT65N to IoT Server =
89 89  
90 90  == 2.1 How does LHT65N work? ==
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237 237  * The 8^^th^^ ~~ 11^^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.)
238 238  
239 239  
240 -
241 241  === 2.4.1 Decoder in TTN V3 ===
242 242  
243 243  
... ... @@ -266,7 +266,6 @@
266 266  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
267 267  
268 268  
269 -
270 270  === 2.4.3 Built-in Temperature ===
271 271  
272 272  
... ... @@ -279,7 +279,6 @@
279 279  * Temperature:  (0xF5C6-65536)/100=-26.18℃
280 280  
281 281  
282 -
283 283  === 2.4.4 Built-in Humidity ===
284 284  
285 285  
... ... @@ -288,7 +288,6 @@
288 288  * Humidity:    0x025C/10=60.4%
289 289  
290 290  
291 -
292 292  === 2.4.5 Ext # ===
293 293  
294 294  
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316 316  
317 317  * External temperature= (0xF54F-65536)/100=-27.37℃
318 318  
319 -F54F :  (F54F & 8000 == 1) , temp = (F54F - 65536)/100 = 27.37℃
320 -
321 -（0105 & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
322 -
323 323  The last 2 bytes of data are meaningless
324 324  
325 325  If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
326 326  
327 327  
328 -
329 329  ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
330 330  
331 331  
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390 390  * (% 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)
391 391  
392 392  
393 -
394 394  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
395 395  
396 396  
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439 439  [[image:image-20220628151143-7.png||_mstalt="431210"]]
440 440  
441 441  
442 -
443 443  ==== 2.4.6.4 Ext~=2 TMP117 Sensor （Since Firmware v1.3） ====
444 444  
445 445  
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456 456  The external cable NE2 can be use for MOD4 and MOD8
457 457  
458 458  
459 -
460 460  ==== 2.4.6.5 Ext~=4 Interrupt Mode （Since Firmware v1.3） ====
461 461  
462 462  
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503 503  [[image:image-20220906101145-3.png||_mstalt="428688"]]
504 504  
505 505  
506 -
507 507  ==== 2.4.6.6 Ext~=8 Counting Mode（Since Firmware v1.3） ====
508 508  
509 509  
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871 871  
872 872  ==== **Sampling multiple times and uplink together** ====
873 873  
874 -
875 875  **AT+WMOD=3,1,60,20,-16,32,1**   
876 876  
877 877  Explain:
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978 978  * For each success downlink, the PURPLE LED will blink once
979 979  
980 980  
981 -
982 982  == 2.9 installation ==
983 983  
984 984  
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1032 1032  * Working voltage 2.35v ~~ 5v
1033 1033  
1034 1034  
1035 -
1036 1036  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1037 1037  
1038 1038  
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1102 1102  * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
1103 1103  
1104 1104  
1105 -
1106 1106  == 4.2 Set External Sensor Mode ==
1107 1107  
1108 1108  
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1127 1127  * 0xA20702003c: Same as AT+SETCNT=60
1128 1128  
1129 1129  
1130 -
1131 1131  == 4.3 Enable/Disable uplink Temperature probe ID ==
1132 1132  
1133 1133  
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1159 1159  * **0xA801**     **~-~->** AT+PID=1
1160 1160  
1161 1161  
1162 -
1163 1163  == 4.4 Set Password ==
1164 1164  
1165 1165  
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1210 1210  * There is no downlink command to set to Sleep mode.
1211 1211  
1212 1212  
1213 -
1214 1214  == 4.7 Set system time ==
1215 1215  
1216 1216  
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1315 1315  * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1316 1316  
1317 1317  
1318 -
1319 1319  == 4.13 Auto Send None-ACK messages ==
1320 1320  
1321 1321  
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1335 1335  * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1336 1336  
1337 1337  
1338 -
1339 1339  == 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm（Since firmware 1.3.0） ==
1340 1340  
1341 1341  
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1781 1781  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1782 1782  
1783 1783  
1784 -
1785 1785  = 8. Packing Info =
1786 1786  
1787 1787  
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1796 1796  * Device Weight: 120.5g
1797 1797  
1798 1798  
1799 -
1800 1800  = 9. Reference material =
1801 1801  
1802 1802  
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1803 1803  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
1804 1804  
1805 1805  
1806 -
1807 1807  = 10. FCC Warning =
1808 1808  
1809 1809