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Last modified by Xiaoling on 2023/07/18 10:12
From version 200.1
edited by Bei Jinggeng
on 2022/09/27 09:56
Change comment: There is no comment for this version
To version 189.11
edited by Xiaoling
on 2022/08/08 16:54
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
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1 -XWiki.Bei
1 +XWiki.Xiaoling
Content
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16 16  
17 17  = 1. Introduction =
18 18  
19 -
20 20  == 1.1 What is LHT65N Temperature & Humidity Sensor ==
21 21  
22 22  
... ... @@ -45,7 +45,6 @@
45 45  )))
46 46  
47 47  
48 -
49 49  == 1.2 Features ==
50 50  
51 51  
... ... @@ -59,14 +59,12 @@
59 59  * Built-in Temperature & Humidity sensor
60 60  * Optional External Sensors
61 61  * Tri-color LED to indicate working status
62 -* Datalog feature (Max 3328 records)
60 +* Datalog feature
63 63  
64 -
65 -
66 66  == 1.3 Specification ==
67 67  
68 68  
69 -(% style="color:#037691" %)**Built-in Temperature Sensor:**
65 +**Built-in Temperature Sensor:**
70 70  
71 71  * Resolution: 0.01 °C
72 72  * Accuracy Tolerance : Typ ±0.3 °C
... ... @@ -73,7 +73,7 @@
73 73  * Long Term Drift: < 0.02 °C/yr
74 74  * Operating Range: -40 ~~ 85 °C
75 75  
76 -(% style="color:#037691" %)**Built-in Humidity Sensor:**
72 +**Built-in Humidity Sensor:**
77 77  
78 78  * Resolution: 0.04 %RH
79 79  * Accuracy Tolerance : Typ ±3 %RH
... ... @@ -80,7 +80,7 @@
80 80  * Long Term Drift: < 0.02 °C/yr
81 81  * Operating Range: 0 ~~ 96 %RH
82 82  
83 -(% style="color:#037691" %)**External Temperature Sensor:**
79 +**External Temperature Sensor:**
84 84  
85 85  * Resolution: 0.0625 °C
86 86  * ±0.5°C accuracy from -10°C to +85°C
... ... @@ -87,11 +87,8 @@
87 87  * ±2°C accuracy from -55°C to +125°C
88 88  * Operating Range: -55 °C ~~ 125 °C
89 89  
90 -
91 -
92 92  = 2. Connect LHT65N to IoT Server =
93 93  
94 -
95 95  == 2.1 How does LHT65N work? ==
96 96  
97 97  
... ... @@ -279,7 +279,6 @@
279 279  * The 7th byte (EXT #): defines the external sensor model.
280 280  * 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.)
281 281  
282 -
283 283  === 2.4.1 Decoder in TTN V3 ===
284 284  
285 285  
... ... @@ -312,7 +312,6 @@
312 312  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
313 313  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
314 314  
315 -
316 316  === 2.4.3 Built-in Temperature ===
317 317  
318 318  
... ... @@ -324,7 +324,6 @@
324 324  
325 325  * Temperature:  (0xF5C6-65536)/100=-26.18℃
326 326  
327 -
328 328  === 2.4.4 Built-in Humidity ===
329 329  
330 330  
... ... @@ -332,7 +332,6 @@
332 332  
333 333  * Humidity:    0x025C/10=60.4%
334 334  
335 -
336 336  === 2.4.5 Ext # ===
337 337  
338 338  
... ... @@ -344,7 +344,6 @@
344 344  
345 345  === 2.4.6 Ext value ===
346 346  
347 -
348 348  ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
349 349  
350 350  
... ... @@ -490,8 +490,6 @@
490 490  * (% 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.
491 491  * (% 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)
492 492  
493 -
494 -
495 495  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
496 496  
497 497  
... ... @@ -501,7 +501,7 @@
501 501  
502 502  sensor by setting:
503 503  
504 -AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)**Time to power this sensor, from 0 ~~ 65535ms**
490 +AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
505 505  
506 506  For example:
507 507  
... ... @@ -524,7 +524,6 @@
524 524  
525 525  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.
526 526  
527 -
528 528  1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
529 529  
530 530  [[image:image-20220628151005-5.png]]
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541 541  
542 542  
543 543  
544 -==== 2.4.6.4 Ext~=2 TMP117 Sensor （since v1.3） ====
545 -
546 -[[image:image-20220927095645-1.png||height="534" width="460"]]
547 -
548 -**Ext=2,Temperature Sensor(TMP117)：**
549 -
550 -[[image:image-20220906102307-7.png]]
551 -
552 -
553 -(% style="color:blue" %)**Interrupt Mode and Counting Mode:**
554 -
555 -The external cable NE2 can be use for MOD4 and MOD8
556 -
557 -
558 -
559 -
560 -==== 2.4.6.5 Ext~=4 Interrupt Mode （since v1.3） ====
561 -
562 -
563 -(% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will send an uplink when there is a trigger.**
564 -
565 -
566 -(% style="color:blue" %)**Interrupt Mode can be used to connect to external interrupt sensors such as:**
567 -
568 -**Case 1: Door Sensor.** 3.3v Out for such sensor is just to detect Open/Close.
569 -
570 - In Open State, the power consumption is the same as if there is no probe
571 -
572 - In Close state, the power consumption will be 3uA higher than normal.
573 -
574 -[[image:image-20220906100852-1.png||height="205" width="377"]]
575 -
576 -
577 -Ext=4,Interrupt Sensor：
578 -
579 -(% border="2" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:512px" %)
580 -|(% style="width:117px" %)(((
581 -AT+EXT=4,1
582 -)))|(% style="width:371px" %)(((
583 -Sent uplink packet in both rising and falling interrupt
584 -)))
585 -|(% style="width:117px" %)(((
586 -AT+EXT=4,2
587 -)))|(% style="width:371px" %)(((
588 -Sent uplink packet only in falling interrupt
589 -)))
590 -|(% style="width:117px" %)(((
591 -AT+EXT=4,3
592 -)))|(% style="width:371px" %)(((
593 -Sent uplink packet only in rising interrupt
594 -)))
595 -
596 -Trigger by falling edge:
597 -
598 -[[image:image-20220906101145-2.png]]
599 -
600 -
601 -Trigger by raising edge：
602 -
603 -[[image:image-20220906101145-3.png]]
604 -
605 -
606 -
607 -
608 -==== 2.4.6.6 Ext~=8 Counting Mode（since v1.3） ====
609 -
610 -
611 -(% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will count for every interrupt and uplink periodically.**
612 -
613 -
614 -(% style="color:blue" %)**Case 1**(%%):  Low power consumption Flow Sensor, such flow sensor has pulse output and the power consumption in uA level and can be powered by LHT65N.
615 -
616 -[[image:image-20220906101320-4.png||height="366" width="698"]]
617 -
618 -
619 -(% style="color:blue" %)**Case 2**(%%):  Normal Flow Sensor: Such flow sensor has higher power consumption and is not suitable to be powered by LHT65N. It is powered by external power and output <3.3v pulse
620 -
621 -[[image:image-20220906101320-5.png||height="353" width="696"]]
622 -
623 -Ext=8, Counting Sensor ( 4 bytes)：
624 -
625 -(% border="2" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:381px" %)
626 -|(% style="width:138px" %)(((
627 -AT+EXT=8,0
628 -)))|(% style="width:240px" %)(((
629 -Count at falling interrupt
630 -)))
631 -|(% style="width:138px" %)(((
632 -AT+EXT=8,1
633 -)))|(% style="width:240px" %)(((
634 -Count at rising interrupt
635 -)))
636 -|(% style="width:138px" %)(((
637 -AT+SETCNT=60
638 -)))|(% style="width:240px" %)(((
639 -Sent current count to 60
640 -)))
641 -
642 -[[image:image-20220906101320-6.png]]
643 -
644 -
645 -(% style="color:blue" %)**A2 downlink Command：**
646 -
647 -A2 02:  Same as AT+EXT=2 (AT+EXT= second byte)
648 -
649 -A2 06 01 F4:  Same as AT+EXT=6,500 (AT+EXT= second byte, third and fourth bytes)
650 -
651 -A2 04 02:  Same as AT+EXT=4,2 (AT+EXT= second byte, third byte)
652 -
653 -A2 08 01 00:  Same as AT+EXT=8,0 (AT+EXT= second byte, fourth byte)
654 -
655 -A2 08 02 00 00 00 3C:  Same as AT+ SETCNT=60  (AT+ SETCNT = 4th byte and 5th byte and 6th byte and 7th byte)
656 -
657 -
658 -(% style="color:blue" %)**Modified ATWOOD command for external sensor TMP117 or DS18B20 temperature alarm.**
659 -
660 -
661 -(% style="color:#037691" %)**AT+WMOD=parameter1,parameter2,parameter3,parameter4**
662 -
663 -(% style="color:#037691" %)**Parameter 1**(%%):  Alarm mode:
664 -
665 -0): Cancel
666 -
667 -1): Threshold alarm
668 -
669 -2): Fluctuation alarm
670 -
671 -
672 -(% style="color:#037691" %)** Parameter 2**(%%):  Sampling time. Unit: seconds, up to 255 seconds.
673 -
674 -(% style="color:red" %)**Note: When the collection time is less than 60 seconds and always exceeds the set alarm threshold, the sending interval will not be the collection time, but will be sent every 60 seconds.**
675 -
676 -
677 -(% style="color:#037691" %) **Parameter 3 and parameter 4:**
678 -
679 -1):  If Alarm Mode is set to 1: Parameter 3 and parameter 4 are valid, as before, they represent low temperature and high temperature.
680 -
681 -Such as AT+WMOD=1,60,45,105, it means high and low temperature alarm.
682 -
683 -
684 -2):  If Alarm Mode is set to 2: Parameter 3 is valid, which represents the difference between the currently collected temperature and the last uploaded temperature.
685 -
686 -Such as AT+WMOD=2,10,2,it means that it is a fluctuation alarm.
687 -
688 -If the difference between the current collected temperature and the last Uplin is ±2 degrees, the alarm will be issued.
689 -
690 -
691 -(% style="color:blue" %)** Downlink:**
692 -
693 -0xA5 00 ~-~- AT+WMOD=0.
694 -
695 -0xA5 01 0A 11 94 29 04 ~-~- AT+WMOD=1,10,45,105  (AT+WMOD = second byte, third byte, fourth and fifth bytes divided by 100, sixth and seventh bytes divided by 100 )
696 -
697 -0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
698 -
699 -0xA5 FF ~-~- After the device receives it, upload the current alarm configuration (FPORT=8). Such as 01 0A 11 94 29 04 or 02 0A 02.
700 -
701 -
702 -
703 -
704 704  == 2.5 Show data on Datacake ==
705 705  
706 706  
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764 764  There are two methods:
765 765  
766 766  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
767 -1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will mark these records with non-ack message and store the sensor data, and it will send all messages (10s interval) after the network recovery. note: a) LHT65N will do ack check for data records sending to make sure every data arrive server. b) LHT65N will send data in CONFIRMED Mode when PNACKMD=1, but it won't re-transmit the same packet , it will just mark it as NONE-ACK and resend after network is detected.
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.
768 768  
769 769  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
770 770  
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1250 1250  * RED LED when external sensor is not connected
1251 1251  * For each success downlink, the PURPLE LED will blink once
1252 1252  
1253 -
1254 -
1255 1255  == 2.9 installation ==
1256 1256  
1257 1257  
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1262 1262  
1263 1263  = 3. Sensors and Accessories =
1264 1264  
1265 -
1266 1266  == 3.1 E2 Extension Cable ==
1267 1267  
1268 1268  
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1309 1309  * Operating Range: -40 ~~ 125 °C
1310 1310  * Working voltage 2.35v ~~ 5v
1311 1311  
1312 -
1313 1313  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1314 1314  
1315 1315  
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1379 1379  
1380 1380  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1381 1381  
1382 -
1383 -
1384 1384  == 4.2 Set External Sensor Mode ==
1385 1385  
1386 1386  
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1404 1404  
1405 1405  * 0xA20702003c: Same as AT+SETCNT=60
1406 1406  
1407 -
1408 -
1409 1409  == 4.3 Enable/Disable uplink Temperature probe ID ==
1410 1410  
1411 1411  
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1436 1436  * **0xA800**  **~-~->** AT+PID=0
1437 1437  * **0xA801**     **~-~->** AT+PID=1
1438 1438  
1439 -
1440 -
1441 1441  == 4.4 Set Password ==
1442 1442  
1443 1443  
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1489 1489  
1490 1490  * There is no downlink command to set to Sleep mode.
1491 1491  
1492 -
1493 -
1494 1494  == 4.7 Set system time ==
1495 1495  
1496 1496  
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1599 1599  
1600 1600  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1601 1601  
1602 -
1603 -
1604 1604  == 4.13 Auto Send None-ACK messages ==
1605 1605  
1606 1606  
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1621 1621  
1622 1622  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1623 1623  
1624 -
1625 -
1626 1626  = 5. Battery & How to replace =
1627 1627  
1628 -
1629 1629  == 5.1 Battery Type ==
1630 1630  
1631 1631  
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2075 2075  
2076 2076  (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
2077 2077  
2078 -* (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1886 +(% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1887 +
2079 2079  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1889 +
2080 2080  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1891 +
2081 2081  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1893 +
2082 2082  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1895 +
2083 2083  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1897 +
2084 2084  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1899 +
2085 2085  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
2086 2086  
2087 2087  (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
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2090 2090  
2091 2091  
2092 2092  
1908 +
2093 2093  = 8. Packing Info =
2094 2094  
2095 2095  
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2105 2105  
2106 2106  
2107 2107  
1924 +
2108 2108  = 9. Reference material =
2109 2109  
2110 2110  
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2112 2112  
2113 2113  
2114 2114  
1932 +
2115 2115  = 10. FCC Warning =
2116 2116  
2117 2117  
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2120 2120  (1) This device may not cause harmful interference；
2121 2121  
2122 2122  (2) this device must accept any interference received, including interference that may cause undesired operation.
2123 -
2124 -
2125 -
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