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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 228.1
edited by Bei Jinggeng
on 2023/02/01 11:15
Change comment: There is no comment for this version

Summary

Details

Page properties
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
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57 57  * Tri-color LED to indicate working status
58 58  * Datalog feature (Max 3328 records)
59 59  
60 -
61 -
62 62  == 1.3 Specification ==
63 63  
64 64  
... ... @@ -83,8 +83,6 @@
83 83  * ±2°C accuracy from -55°C to +125°C
84 84  * Operating Range: -55 °C ~~ 125 °C
85 85  
86 -
87 -
88 88  = 2. Connect LHT65N to IoT Server =
89 89  
90 90  == 2.1 How does LHT65N work? ==
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236 236  * The 7th byte (EXT #): defines the external sensor model.
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 -
240 -
241 241  === 2.4.1 Decoder in TTN V3 ===
242 242  
243 243  
... ... @@ -265,8 +265,6 @@
265 265  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
266 266  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
267 267  
268 -
269 -
270 270  === 2.4.3 Built-in Temperature ===
271 271  
272 272  
... ... @@ -278,8 +278,6 @@
278 278  
279 279  * Temperature:  (0xF5C6-65536)/100=-26.18℃
280 280  
281 -
282 -
283 283  === 2.4.4 Built-in Humidity ===
284 284  
285 285  
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287 287  
288 288  * Humidity:    0x025C/10=60.4%
289 289  
290 -
291 -
292 292  === 2.4.5 Ext # ===
293 293  
294 294  
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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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389 389  * (% 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.
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 -
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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977 977  * RED LED when external sensor is not connected
978 978  * For each success downlink, the PURPLE LED will blink once
979 979  
980 -
981 -
982 982  == 2.9 installation ==
983 983  
984 984  
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1031 1031  * Operating Range: -40 ~~ 125 °C
1032 1032  * Working voltage 2.35v ~~ 5v
1033 1033  
1034 -
1035 -
1036 1036  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1037 1037  
1038 1038  
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1101 1101  
1102 1102  * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
1103 1103  
1104 -
1105 -
1106 1106  == 4.2 Set External Sensor Mode ==
1107 1107  
1108 1108  
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1126 1126  
1127 1127  * 0xA20702003c: Same as AT+SETCNT=60
1128 1128  
1129 -
1130 -
1131 1131  == 4.3 Enable/Disable uplink Temperature probe ID ==
1132 1132  
1133 1133  
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1158 1158  * **0xA800**  **~-~->** AT+PID=0
1159 1159  * **0xA801**     **~-~->** AT+PID=1
1160 1160  
1161 -
1162 -
1163 1163  == 4.4 Set Password ==
1164 1164  
1165 1165  
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1209 1209  
1210 1210  * There is no downlink command to set to Sleep mode.
1211 1211  
1212 -
1213 -
1214 1214  == 4.7 Set system time ==
1215 1215  
1216 1216  
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1314 1314  
1315 1315  * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1316 1316  
1317 -
1318 -
1319 1319  == 4.13 Auto Send None-ACK messages ==
1320 1320  
1321 1321  
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1334 1334  
1335 1335  * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1336 1336  
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  
... ... @@ -1780,8 +1780,6 @@
1780 1780  
1781 1781  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1782 1782  
1783 -
1784 -
1785 1785  = 8. Packing Info =
1786 1786  
1787 1787  
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1795 1795  * Device Size:  10 x 10 x 3.5 mm
1796 1796  * Device Weight: 120.5g
1797 1797  
1798 -
1799 -
1800 1800  = 9. Reference material =
1801 1801  
1802 1802  
1803 1803  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
1804 1804  
1805 -
1806 -
1807 1807  = 10. FCC Warning =
1808 1808  
1809 1809