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Last modified by Xiaoling on 2023/07/18 10:12
From version 188.1
edited by Edwin Chen
on 2022/07/03 11:17
Change comment: There is no comment for this version
To version 185.1
edited by Bei Jinggeng
on 2022/06/28 15:12
Change comment: There is no comment for this version

Summary

Details

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Author
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1 -XWiki.Edwin
1 +XWiki.Bei
Content
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59 59  * Datalog feature
60 60  
61 61  
62 -
63 -
64 64  == 1.3 Specification ==
65 65  
66 66  
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86 86  * Operating Range: -55 °C ~~ 125 °C
87 87  
88 88  
89 -
90 -
91 91  = 2. Connect LHT65N to IoT Server =
92 92  
93 93  == 2.1 How does LHT65N work? ==
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269 269  * The 7th byte (EXT #): defines the external sensor model.
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 -
273 -
274 -
275 275  === 2.4.1 Decoder in TTN V3 ===
276 276  
277 277  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  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
303 303  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
304 304  
305 -
306 -
307 -
308 308  === 2.4.3 Built-in Temperature ===
309 309  
310 310  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
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315 315  
316 316  * Temperature:  (0xF5C6-65536)/100=-26.18℃
317 317  
318 -
319 -
320 -
321 321  === 2.4.4 Built-in Humidity ===
322 322  
323 323  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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324 324  
325 325  * Humidity:    0x025C/10=60.4%
326 326  
327 -
328 -
329 -
330 330  === 2.4.5 Ext # ===
331 331  
332 332  Bytes for External Sensor:
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479 479  * 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.
480 480  * 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)
481 481  
482 -
483 -
484 -
485 485  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
486 486  
487 487  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
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528 528  [[image:image-20220628151143-7.png]]
529 529  
530 530  
531 -
532 532  == 2.5 Show data on Datacake ==
533 533  
534 534  (((
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588 588  
589 589  There are two methods:
590 590  
591 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
592 -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 the network recovery.
571 +1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
572 +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.
593 593  
594 -Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
595 -
596 -[[image:image-20220703111700-2.png||height="381" width="1119"]]
597 -
598 -
599 599  === 2.6.2 Unix TimeStamp ===
600 600  
601 601  
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1051 1051  * RED LED when external sensor is not connected
1052 1052  * For each success downlink, the PURPLE LED will blink once
1053 1053  
1054 -
1055 -
1056 -
1057 1057  == 2.9 installation ==
1058 1058  
1059 1059  (% _mstvisible="1" %)
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1104 1104  * Operating Range: -40 ~~ 125 °C
1105 1105  * Working voltage 2.35v ~~ 5v
1106 1106  
1107 -
1108 -
1109 -
1110 1110  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1111 1111  
1112 1112  (((
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1172 1172  
1173 1173  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1174 1174  
1175 -
1176 -
1177 -
1178 1178  == 4.2 Set External Sensor Mode ==
1179 1179  
1180 1180  Feature: Change External Sensor Mode.
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1196 1196  
1197 1197  * 0xA20702003c: Same as AT+SETCNT=60
1198 1198  
1199 -
1200 -
1201 -
1202 1202  == 4.3 Enable/Disable uplink Temperature probe ID ==
1203 1203  
1204 1204  (((
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1226 1226  * **0xA800**  **~-~->** AT+PID=0
1227 1227  * **0xA801**     **~-~->** AT+PID=1
1228 1228  
1229 -
1230 -
1231 -
1232 1232  == 4.4 Set Password ==
1233 1233  
1234 1234  Feature: Set device password, max 9 digits
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1275 1275  
1276 1276  * There is no downlink command to set to Sleep mode.
1277 1277  
1278 -
1279 -
1280 -
1281 1281  == 4.7 Set system time ==
1282 1282  
1283 1283  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
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1374 1374  
1375 1375  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1376 1376  
1377 -
1378 -
1379 -
1380 1380  == 4.13 Auto Send None-ACK messages ==
1381 1381  
1382 1382  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
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1395 1395  
1396 1396  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1397 1397  
1398 -
1399 -
1400 -
1401 1401  = 5. Battery & How to replace =
1402 1402  
1403 1403  == 5.1 Battery Type ==
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1787 1787  [[image:image-20220615154519-3.png||height="672" width="807"]]
1788 1788  
1789 1789  
1790 -== 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1741 +== 6.6 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1791 1791  
1792 1792  [[image:image-20220623110706-1.png]]
1793 1793  
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1850 1850  
1851 1851  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1852 1852  
1853 -
1854 -
1855 -
1856 1856  = 8. Packing Info =
1857 1857  
1858 1858  
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1866 1866  * Device Size:  10 x 10 x 3.5 cm
1867 1867  * Device Weight: 120.5g
1868 1868  
1869 -
1870 -
1871 -
1872 1872  = 9. Reference material =
1873 1873  
1874 1874  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1875 1875  
1876 -
1877 -
1878 -
1879 1879  = 10. FCC Warning =
1880 1880  
1881 1881  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
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