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Last modified by Xiaoling on 2023/07/18 10:12
From version 185.1
edited by Bei Jinggeng
on 2022/06/28 15:12
Change comment: There is no comment for this version
To version 184.1
edited by Bei Jinggeng
on 2022/06/28 15:11
Change comment: Uploaded new attachment "image-20220628151143-7.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -59,6 +59,7 @@
59 59  * Datalog feature
60 60  
61 61  
62 +
62 62  == 1.3 Specification ==
63 63  
64 64  
... ... @@ -84,6 +84,7 @@
84 84  * Operating Range: -55 °C ~~ 125 °C
85 85  
86 86  
88 +
87 87  = 2. Connect LHT65N to IoT Server =
88 88  
89 89  == 2.1 How does LHT65N work? ==
... ... @@ -265,6 +265,7 @@
265 265  * The 7th byte (EXT #): defines the external sensor model.
266 266  * 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.)
267 267  
270 +
268 268  === 2.4.1 Decoder in TTN V3 ===
269 269  
270 270  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.
... ... @@ -295,6 +295,7 @@
295 295  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
296 296  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
297 297  
301 +
298 298  === 2.4.3 Built-in Temperature ===
299 299  
300 300  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
... ... @@ -305,6 +305,7 @@
305 305  
306 306  * Temperature:  (0xF5C6-65536)/100=-26.18℃
307 307  
312 +
308 308  === 2.4.4 Built-in Humidity ===
309 309  
310 310  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
... ... @@ -311,6 +311,7 @@
311 311  
312 312  * Humidity:    0x025C/10=60.4%
313 313  
319 +
314 314  === 2.4.5 Ext # ===
315 315  
316 316  Bytes for External Sensor:
... ... @@ -463,6 +463,7 @@
463 463  * 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.
464 464  * 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)
465 465  
472 +
466 466  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
467 467  
468 468  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
... ... @@ -473,42 +473,8 @@
473 473  
474 474  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
475 475  
476 -For example:
477 477  
478 -AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
479 479  
480 -
481 -Or use **downlink command A2** to set the same.
482 -
483 -The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
484 -
485 -When the measured output voltage of the sensor is not within the range of 0.1V and 1.1V, the output voltage terminal of the sensor shall be divided The example in the following figure is to reduce the output voltage of the sensor by three times If it is necessary to reduce more times, calculate according to the formula in the figure and connect the corresponding resistance in series.
486 -
487 -[[image:image-20220628150112-1.png||height="241" width="285"]]
488 -
489 -
490 -When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
491 -
492 -[[image:image-20220628150714-4.png]]
493 -
494 -
495 -When the voltage collected by ADC_IN1 is less than the minimum range, the minimum range will be used as the output; Similarly, when the collected voltage is greater than the maximum range, the maximum range will be used as the output.
496 -
497 -1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
498 -
499 -[[image:image-20220628151005-5.png]]
500 -
501 -
502 -2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
503 -
504 -[[image:image-20220628151056-6.png]]
505 -
506 -
507 -3) Within range
508 -
509 -[[image:image-20220628151143-7.png]]
510 -
511 -
512 512  == 2.5 Show data on Datacake ==
513 513  
514 514  (((
... ... @@ -571,6 +571,7 @@
571 571  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
572 572  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.
573 573  
547 +
574 574  === 2.6.2 Unix TimeStamp ===
575 575  
576 576  
... ... @@ -1026,6 +1026,7 @@
1026 1026  * RED LED when external sensor is not connected
1027 1027  * For each success downlink, the PURPLE LED will blink once
1028 1028  
1003 +
1029 1029  == 2.9 installation ==
1030 1030  
1031 1031  (% _mstvisible="1" %)
... ... @@ -1076,6 +1076,7 @@
1076 1076  * Operating Range: -40 ~~ 125 °C
1077 1077  * Working voltage 2.35v ~~ 5v
1078 1078  
1054 +
1079 1079  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1080 1080  
1081 1081  (((
... ... @@ -1141,6 +1141,7 @@
1141 1141  
1142 1142  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1143 1143  
1120 +
1144 1144  == 4.2 Set External Sensor Mode ==
1145 1145  
1146 1146  Feature: Change External Sensor Mode.
... ... @@ -1162,6 +1162,7 @@
1162 1162  
1163 1163  * 0xA20702003c: Same as AT+SETCNT=60
1164 1164  
1142 +
1165 1165  == 4.3 Enable/Disable uplink Temperature probe ID ==
1166 1166  
1167 1167  (((
... ... @@ -1189,6 +1189,7 @@
1189 1189  * **0xA800**  **~-~->** AT+PID=0
1190 1190  * **0xA801**     **~-~->** AT+PID=1
1191 1191  
1170 +
1192 1192  == 4.4 Set Password ==
1193 1193  
1194 1194  Feature: Set device password, max 9 digits
... ... @@ -1235,6 +1235,7 @@
1235 1235  
1236 1236  * There is no downlink command to set to Sleep mode.
1237 1237  
1217 +
1238 1238  == 4.7 Set system time ==
1239 1239  
1240 1240  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
... ... @@ -1331,6 +1331,7 @@
1331 1331  
1332 1332  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1333 1333  
1314 +
1334 1334  == 4.13 Auto Send None-ACK messages ==
1335 1335  
1336 1336  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
... ... @@ -1349,6 +1349,7 @@
1349 1349  
1350 1350  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1351 1351  
1333 +
1352 1352  = 5. Battery & How to replace =
1353 1353  
1354 1354  == 5.1 Battery Type ==
... ... @@ -1801,6 +1801,7 @@
1801 1801  
1802 1802  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1803 1803  
1786 +
1804 1804  = 8. Packing Info =
1805 1805  
1806 1806  
... ... @@ -1814,10 +1814,12 @@
1814 1814  * Device Size:  10 x 10 x 3.5 cm
1815 1815  * Device Weight: 120.5g
1816 1816  
1800 +
1817 1817  = 9. Reference material =
1818 1818  
1819 1819  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1820 1820  
1805 +
1821 1821  = 10. FCC Warning =
1822 1822  
1823 1823  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions: