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Last modified by Xiaoling on 2023/07/18 10:12
From version 189.4
edited by Xiaoling
on 2022/07/22 10:34
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

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Author
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1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
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58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature
60 60  
61 +
62 +
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  
87 +
88 +
85 85  = 2. Connect LHT65N to IoT Server =
86 86  
87 87  == 2.1 How does LHT65N work? ==
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160 160  [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
161 161  
162 162  
167 +Note: LHT65N use same payload as LHT65.
163 163  
164 -(% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
165 165  
166 -
167 167  [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
168 168  
169 169  
... ... @@ -265,7 +265,6 @@
265 265  * 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.)
266 266  
267 267  
268 -
269 269  === 2.4.1 Decoder in TTN V3 ===
270 270  
271 271  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.
... ... @@ -297,7 +297,6 @@
297 297  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
298 298  
299 299  
300 -
301 301  === 2.4.3 Built-in Temperature ===
302 302  
303 303  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
... ... @@ -309,7 +309,6 @@
309 309  * Temperature:  (0xF5C6-65536)/100=-26.18℃
310 310  
311 311  
312 -
313 313  === 2.4.4 Built-in Humidity ===
314 314  
315 315  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
... ... @@ -317,7 +317,6 @@
317 317  * Humidity:    0x025C/10=60.4%
318 318  
319 319  
320 -
321 321  === 2.4.5 Ext # ===
322 322  
323 323  Bytes for External Sensor:
... ... @@ -464,13 +464,11 @@
464 464  
465 465  * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
466 466  
467 -(% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
468 -|(% style="width:60px" %)**Bits**|(% style="width:90px" %)**7**|(% style="width:100px" %)**6**|(% style="width:90px" %)**5**|(% style="width:100px" %)**4**|(% style="width:60px" %)**[3:0]**
469 -|(% style="width:96px" %)**Status&Ext**|(% style="width:124px" %)None-ACK Flag|(% style="width:146px" %)Poll Message FLAG|(% style="width:109px" %)Sync time OK|(% style="width:143px" %)Unix Time Request|(% style="width:106px" %)Ext: 0b(1001)
466 +[[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
470 470  
471 -* (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
472 -* (% 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.
473 -* (% 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)
468 +* Poll Message Flag:  1: This message is a poll message reply, 0: means this is a normal uplink.
469 +* 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.
470 +* 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)
474 474  
475 475  
476 476  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
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483 483  
484 484  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
485 485  
486 -For example:
487 487  
488 -AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
489 489  
490 -
491 -Or use **downlink command A2** to set the same.
492 -
493 -The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
494 -
495 -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.
496 -
497 -[[image:image-20220628150112-1.png||height="241" width="285"]]
498 -
499 -
500 -When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
501 -
502 -[[image:image-20220628150714-4.png]]
503 -
504 -
505 -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.
506 -
507 -1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
508 -
509 -[[image:image-20220628151005-5.png]]
510 -
511 -
512 -2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
513 -
514 -[[image:image-20220628151056-6.png]]
515 -
516 -
517 -3) Within range
518 -
519 -[[image:image-20220628151143-7.png]]
520 -
521 -
522 -
523 523  == 2.5 Show data on Datacake ==
524 524  
525 525  (((
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579 579  
580 580  There are two methods:
581 581  
582 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
583 -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.
544 +1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
545 +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.
584 584  
585 -Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
586 586  
587 -[[image:image-20220703111700-2.png||height="381" width="1119"]]
588 -
589 -
590 590  === 2.6.2 Unix TimeStamp ===
591 591  
592 592  
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1027 1027  )))
1028 1028  )))
1029 1029  
1030 -(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1031 1031  
1032 -Total bytes: 8 bytes
1033 1033  
1034 -**Example:**AA0100010001003C
1035 -
1036 -WMOD=01
1037 -
1038 -CITEMP=0001
1039 -
1040 -TEMPlow=0001
1041 -
1042 -TEMPhigh=003C
1043 -
1044 -
1045 1045  == 2.8 LED Indicator ==
1046 1046  
1047 1047  The LHT65 has a triple color LED which for easy showing different stage .
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1055 1055  * RED LED when external sensor is not connected
1056 1056  * For each success downlink, the PURPLE LED will blink once
1057 1057  
1003 +
1058 1058  == 2.9 installation ==
1059 1059  
1060 1060  (% _mstvisible="1" %)
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1105 1105  * Operating Range: -40 ~~ 125 °C
1106 1106  * Working voltage 2.35v ~~ 5v
1107 1107  
1054 +
1108 1108  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1109 1109  
1110 1110  (((
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1170 1170  
1171 1171  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1172 1172  
1120 +
1173 1173  == 4.2 Set External Sensor Mode ==
1174 1174  
1175 1175  Feature: Change External Sensor Mode.
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1191 1191  
1192 1192  * 0xA20702003c: Same as AT+SETCNT=60
1193 1193  
1142 +
1194 1194  == 4.3 Enable/Disable uplink Temperature probe ID ==
1195 1195  
1196 1196  (((
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1218 1218  * **0xA800**  **~-~->** AT+PID=0
1219 1219  * **0xA801**     **~-~->** AT+PID=1
1220 1220  
1170 +
1221 1221  == 4.4 Set Password ==
1222 1222  
1223 1223  Feature: Set device password, max 9 digits
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1264 1264  
1265 1265  * There is no downlink command to set to Sleep mode.
1266 1266  
1217 +
1267 1267  == 4.7 Set system time ==
1268 1268  
1269 1269  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
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1360 1360  
1361 1361  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1362 1362  
1314 +
1363 1363  == 4.13 Auto Send None-ACK messages ==
1364 1364  
1365 1365  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
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1378 1378  
1379 1379  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1380 1380  
1333 +
1381 1381  = 5. Battery & How to replace =
1382 1382  
1383 1383  == 5.1 Battery Type ==
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1767 1767  [[image:image-20220615154519-3.png||height="672" width="807"]]
1768 1768  
1769 1769  
1770 -== 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1723 +== 6.6 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1771 1771  
1772 1772  [[image:image-20220623110706-1.png]]
1773 1773  
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1830 1830  
1831 1831  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1832 1832  
1786 +
1833 1833  = 8. Packing Info =
1834 1834  
1835 1835  
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1843 1843  * Device Size:  10 x 10 x 3.5 cm
1844 1844  * Device Weight: 120.5g
1845 1845  
1800 +
1846 1846  = 9. Reference material =
1847 1847  
1848 1848  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1849 1849  
1805 +
1850 1850  = 10. FCC Warning =
1851 1851  
1852 1852  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
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