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Last modified by Xiaoling on 2023/07/18 10:12
From version 261.1
edited by Xiaoling
on 2023/07/17 15:24
Change comment: Uploaded new attachment "image-20230717152413-11.png", version {1}
To version 261.4
edited by Xiaoling
on 2023/07/17 16:06
Change comment: Update document after refactoring.

Summary

Details

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Title
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1 -LHT65N LoRaWAN Temperature & Humidity Sensor Manual
1 +LHT65N -- LoRaWAN Temperature & Humidity Sensor Manual
Parent
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1 -Main.WebHome
1 +Main.User Manual for LoRaWAN End Nodes.WebHome
Content
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56 56  * Datalog feature (Max 3328 records)
57 57  
58 58  
59 +
59 59  == 1.3 Specification ==
60 60  
61 61  
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81 81  * Operating Range: -55 °C ~~ 125 °C
82 82  
83 83  
85 +
84 84  = 2. Connect LHT65N to IoT Server =
85 85  
86 86  == 2.1 How does LHT65N work? ==
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244 244  * 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.)
245 245  
246 246  
249 +
247 247  === 2.4.1 Decoder in TTN V3 ===
248 248  
249 249  
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287 287  * Battery Voltage =0xCBA4&0x3FFF=0x0BA4=2980mV
288 288  
289 289  
293 +
290 290  === 2.4.3 Built-in Temperature ===
291 291  
292 292  
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299 299  * Temperature:  (0xF5C6-65536)/100=-26.18℃
300 300  
301 301  
306 +
302 302  (% style="display:none" %)
303 303  
304 304  === 2.4.4 Built-in Humidity ===
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309 309  * Humidity:    0x025C/10=60.4%
310 310  
311 311  
317 +
312 312  (% style="display:none" %)
313 313  
314 314  === 2.4.5 Ext # ===
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358 358  Timestamp mode is designed for LHT65N with E3 probe, it will send the uplink payload with Unix timestamp. With the limitation of 11 bytes (max distance of AU915/US915/AS923 band), the time stamp mode will be lack of BAT voltage field, instead, it shows the battery status. The payload is as below:
359 359  )))
360 360  
361 -
362 362  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
363 363  |=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
364 364  **Size(bytes)**
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412 412  * (% 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)
413 413  
414 414  
420 +
415 415  ==== 2.4.6.3 Ext~=6, ADC Sensor(use with E2 Cable) ====
416 416  
417 417  
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597 597  Timestamp mode is designed for LHT65N with E2 probe, it will send the uplink payload with Unix timestamp. With the limitation of 11 bytes (max distance of AU915/US915/AS923 band), the time stamp mode will be lack of BAT voltage field, instead, it shows the battery status. The payload is as below:
598 598  )))
599 599  
600 -
601 601  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
602 602  |=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
603 603  **Size(bytes)**
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651 651  * (% 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)
652 652  
653 653  
659 +
654 654  == 2.5 Show data on Datacake ==
655 655  
656 656  
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1068 1068  * For each success downlink, the PURPLE LED will blink once
1069 1069  
1070 1070  
1077 +
1071 1071  == 2.9 installation ==
1072 1072  
1073 1073  
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1159 1159  * Operating Range: 0 ~~ 96 % RH
1160 1160  
1161 1161  
1169 +
1162 1162  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1163 1163  
1164 1164  
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1230 1230  * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
1231 1231  
1232 1232  
1241 +
1233 1233  == 4.2 Set External Sensor Mode ==
1234 1234  
1235 1235  
1236 1236  Feature: Change External Sensor Mode.
1237 1237  
1238 -
1239 1239  (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1240 1240  
1241 -
1242 1242  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:468px" %)
1243 1243  |(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:153px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:160px" %)**Response**
1244 1244  |(% style="width:155px" %)AT+EXT=?|(% style="width:151px" %)Get current external sensor mode|(% style="width:158px" %)1 OK External Sensor mode =1
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1258 1258  * 0xA20702003c: Same as AT+SETCNT=60
1259 1259  
1260 1260  
1268 +
1261 1261  == 4.3 Enable/Disable uplink Temperature probe ID ==
1262 1262  
1263 1263  
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1290 1290  * **0xA801**     **~-~->** AT+PID=1
1291 1291  
1292 1292  
1301 +
1293 1293  == 4.4 Set Password ==
1294 1294  
1295 1295  
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1350 1350  * There is no downlink command to set to Sleep mode.
1351 1351  
1352 1352  
1362 +
1353 1353  == 4.7 Set system time ==
1354 1354  
1355 1355  
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1457 1457  * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1458 1458  
1459 1459  
1470 +
1460 1460  == 4.13 Auto Send None-ACK messages ==
1461 1461  
1462 1462  
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1475 1475  * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1476 1476  
1477 1477  
1489 +
1478 1478  == 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm(Since firmware 1.3.0) ==
1479 1479  
1480 1480  
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1922 1922  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1923 1923  
1924 1924  
1937 +
1925 1925  = 8. Packing Info =
1926 1926  
1927 1927  
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1936 1936  * Device Weight: 120.5g
1937 1937  
1938 1938  
1952 +
1939 1939  = 9. Reference material =
1940 1940  
1941 1941  
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1942 1942  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
1943 1943  
1944 1944  
1959 +
1945 1945  = 10. FCC Warning =
1946 1946  
1947 1947