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Last modified by Xiaoling on 2023/07/18 10:12
From version 189.2
edited by Xiaoling
on 2022/07/22 10:33
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

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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 +
61 61  == 1.3 Specification ==
62 62  
63 63  
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82 82  * ±2°C accuracy from -55°C to +125°C
83 83  * Operating Range: -55 °C ~~ 125 °C
84 84  
86 +
85 85  = 2. Connect LHT65N to IoT Server =
86 86  
87 87  == 2.1 How does LHT65N work? ==
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303 303  
304 304  * Temperature:  (0xF5C6-65536)/100=-26.18℃
305 305  
306 -
307 -
308 -
309 309  === 2.4.4 Built-in Humidity ===
310 310  
311 311  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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312 312  
313 313  * Humidity:    0x025C/10=60.4%
314 314  
315 -
316 -
317 -
318 318  === 2.4.5 Ext # ===
319 319  
320 320  Bytes for External Sensor:
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461 461  
462 462  * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
463 463  
464 -(% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
465 -|(% 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]**
466 -|(% 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)
460 +[[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
467 467  
468 -* (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
469 -* (% 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.
470 -* (% 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)
462 +* Poll Message Flag:  1: This message is a poll message reply, 0: means this is a normal uplink.
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 +* 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)
471 471  
472 -
473 -
474 474  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
475 475  
476 476  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
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517 517  [[image:image-20220628151143-7.png]]
518 518  
519 519  
520 -
521 521  == 2.5 Show data on Datacake ==
522 522  
523 523  (((
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577 577  
578 578  There are two methods:
579 579  
580 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
581 -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.
582 582  
583 -Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
584 -
585 -[[image:image-20220703111700-2.png||height="381" width="1119"]]
586 -
587 -
588 588  === 2.6.2 Unix TimeStamp ===
589 589  
590 590  
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1025 1025  )))
1026 1026  )))
1027 1027  
1028 -(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1029 1029  
1030 -Total bytes: 8 bytes
1031 1031  
1032 -**Example:**AA0100010001003C
1033 -
1034 -WMOD=01
1035 -
1036 -CITEMP=0001
1037 -
1038 -TEMPlow=0001
1039 -
1040 -TEMPhigh=003C
1041 -
1042 -
1043 1043  == 2.8 LED Indicator ==
1044 1044  
1045 1045  The LHT65 has a triple color LED which for easy showing different stage .
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1765 1765  [[image:image-20220615154519-3.png||height="672" width="807"]]
1766 1766  
1767 1767  
1768 -== 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? ==
1769 1769  
1770 1770  [[image:image-20220623110706-1.png]]
1771 1771  
image-20220703111533-1.png
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