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Last modified by Xiaoling on 2023/07/18 10:12
From version 228.1
edited by Bei Jinggeng
on 2023/02/01 11:15
Change comment: There is no comment for this version
To version 228.4
edited by Xiaoling
on 2023/02/17 09:28
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
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1 -XWiki.Bei
1 +XWiki.Xiaoling
Content
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46 46  == 1.2 Features ==
47 47  
48 48  
49 -* Wall mountable
50 50  * LoRaWAN v1.0.3 Class A protocol
51 51  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
52 52  * AT Commands to change parameters
... ... @@ -58,6 +58,8 @@
58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature (Max 3328 records)
60 60  
60 +
61 +
61 61  == 1.3 Specification ==
62 62  
63 63  
... ... @@ -82,6 +82,8 @@
82 82  * ±2°C accuracy from -55°C to +125°C
83 83  * Operating Range: -55 °C ~~ 125 °C
84 84  
86 +
87 +
85 85  = 2. Connect LHT65N to IoT Server =
86 86  
87 87  == 2.1 How does LHT65N work? ==
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233 233  * The 7th byte (EXT #): defines the external sensor model.
234 234  * 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.)
235 235  
239 +
240 +
236 236  === 2.4.1 Decoder in TTN V3 ===
237 237  
238 238  
... ... @@ -260,6 +260,8 @@
260 260  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
261 261  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
262 262  
268 +
269 +
263 263  === 2.4.3 Built-in Temperature ===
264 264  
265 265  
... ... @@ -271,6 +271,8 @@
271 271  
272 272  * Temperature:  (0xF5C6-65536)/100=-26.18℃
273 273  
281 +
282 +
274 274  === 2.4.4 Built-in Humidity ===
275 275  
276 276  
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278 278  
279 279  * Humidity:    0x025C/10=60.4%
280 280  
290 +
291 +
281 281  === 2.4.5 Ext # ===
282 282  
283 283  
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314 314  If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
315 315  
316 316  
328 +
317 317  ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
318 318  
319 319  
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377 377  * (% 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.
378 378  * (% 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)
379 379  
392 +
393 +
380 380  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
381 381  
382 382  
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425 425  [[image:image-20220628151143-7.png||_mstalt="431210"]]
426 426  
427 427  
442 +
428 428  ==== 2.4.6.4 Ext~=2 TMP117 Sensor （Since Firmware v1.3） ====
429 429  
430 430  
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441 441  The external cable NE2 can be use for MOD4 and MOD8
442 442  
443 443  
459 +
444 444  ==== 2.4.6.5 Ext~=4 Interrupt Mode （Since Firmware v1.3） ====
445 445  
446 446  
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487 487  [[image:image-20220906101145-3.png||_mstalt="428688"]]
488 488  
489 489  
506 +
490 490  ==== 2.4.6.6 Ext~=8 Counting Mode（Since Firmware v1.3） ====
491 491  
492 492  
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854 854  
855 855  ==== **Sampling multiple times and uplink together** ====
856 856  
874 +
857 857  **AT+WMOD=3,1,60,20,-16,32,1**   
858 858  
859 859  Explain:
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959 959  * RED LED when external sensor is not connected
960 960  * For each success downlink, the PURPLE LED will blink once
961 961  
980 +
981 +
962 962  == 2.9 installation ==
963 963  
964 964  
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1011 1011  * Operating Range: -40 ~~ 125 °C
1012 1012  * Working voltage 2.35v ~~ 5v
1013 1013  
1034 +
1035 +
1014 1014  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1015 1015  
1016 1016  
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1079 1079  
1080 1080  * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
1081 1081  
1104 +
1105 +
1082 1082  == 4.2 Set External Sensor Mode ==
1083 1083  
1084 1084  
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1102 1102  
1103 1103  * 0xA20702003c: Same as AT+SETCNT=60
1104 1104  
1129 +
1130 +
1105 1105  == 4.3 Enable/Disable uplink Temperature probe ID ==
1106 1106  
1107 1107  
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1132 1132  * **0xA800**  **~-~->** AT+PID=0
1133 1133  * **0xA801**     **~-~->** AT+PID=1
1134 1134  
1161 +
1162 +
1135 1135  == 4.4 Set Password ==
1136 1136  
1137 1137  
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1181 1181  
1182 1182  * There is no downlink command to set to Sleep mode.
1183 1183  
1212 +
1213 +
1184 1184  == 4.7 Set system time ==
1185 1185  
1186 1186  
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1284 1284  
1285 1285  * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1286 1286  
1317 +
1318 +
1287 1287  == 4.13 Auto Send None-ACK messages ==
1288 1288  
1289 1289  
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1302 1302  
1303 1303  * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1304 1304  
1337 +
1338 +
1305 1305  == 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm（Since firmware 1.3.0） ==
1306 1306  
1307 1307  
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1746 1746  
1747 1747  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1748 1748  
1783 +
1784 +
1749 1749  = 8. Packing Info =
1750 1750  
1751 1751  
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1759 1759  * Device Size:  10 x 10 x 3.5 mm
1760 1760  * Device Weight: 120.5g
1761 1761  
1798 +
1799 +
1762 1762  = 9. Reference material =
1763 1763  
1764 1764  
1765 1765  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
1766 1766  
1805 +
1806 +
1767 1767  = 10. FCC Warning =
1768 1768  
1769 1769