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Last modified by Xiaoling on 2023/07/18 10:12
From version 199.1
edited by Bei Jinggeng
on 2022/09/27 09:56
Change comment: Uploaded new attachment "image-20220927095645-1.png", version {1}
To version 189.13
edited by Xiaoling
on 2022/08/08 17:01
Change comment: There is no comment for this version

Summary

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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  
... ... @@ -59,7 +59,7 @@
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 64  
65 65  
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67 67  == 1.3 Specification ==
68 68  
69 69  
70 -(% style="color:#037691" %)**Built-in Temperature Sensor:**
68 +**Built-in Temperature Sensor:**
71 71  
72 72  * Resolution: 0.01 °C
73 73  * Accuracy Tolerance : Typ ±0.3 °C
... ... @@ -74,7 +74,7 @@
74 74  * Long Term Drift: < 0.02 °C/yr
75 75  * Operating Range: -40 ~~ 85 °C
76 76  
77 -(% style="color:#037691" %)**Built-in Humidity Sensor:**
75 +**Built-in Humidity Sensor:**
78 78  
79 79  * Resolution: 0.04 %RH
80 80  * Accuracy Tolerance : Typ ±3 %RH
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81 81  * Long Term Drift: < 0.02 °C/yr
82 82  * Operating Range: 0 ~~ 96 %RH
83 83  
84 -(% style="color:#037691" %)**External Temperature Sensor:**
82 +**External Temperature Sensor:**
85 85  
86 86  * Resolution: 0.0625 °C
87 87  * ±0.5°C accuracy from -10°C to +85°C
... ... @@ -93,7 +93,6 @@
93 93  
94 94  = 2. Connect LHT65N to IoT Server =
95 95  
96 -
97 97  == 2.1 How does LHT65N work? ==
98 98  
99 99  
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283 283  
284 284  
285 285  
283 +
286 286  === 2.4.1 Decoder in TTN V3 ===
287 287  
288 288  
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317 317  
318 318  
319 319  
318 +
320 320  === 2.4.3 Built-in Temperature ===
321 321  
322 322  
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330 330  
331 331  
332 332  
332 +
333 333  === 2.4.4 Built-in Humidity ===
334 334  
335 335  
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339 339  
340 340  
341 341  
342 +
342 342  === 2.4.5 Ext # ===
343 343  
344 344  
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508 508  
509 509  sensor by setting:
510 510  
511 -AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)**Time to power this sensor, from 0 ~~ 65535ms**
512 +AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
512 512  
513 513  For example:
514 514  
... ... @@ -531,7 +531,6 @@
531 531  
532 532  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.
533 533  
534 -
535 535  1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
536 536  
537 537  [[image:image-20220628151005-5.png]]
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548 548  
549 549  
550 550  
551 -==== 2.4.6.4 Ext~=2 TMP117 Sensor （since v1.3） ====
552 -
553 -
554 -**Ext=2,Temperature Sensor(TMP117)：**
555 -
556 -[[image:image-20220906102307-7.png]]
557 -
558 -
559 -(% style="color:blue" %)**Interrupt Mode and Counting Mode:**
560 -
561 -The external cable NE2 can be use for MOD4 and MOD8
562 -
563 -
564 -
565 -
566 -==== 2.4.6.5 Ext~=4 Interrupt Mode （since v1.3） ====
567 -
568 -
569 -(% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will send an uplink when there is a trigger.**
570 -
571 -
572 -(% style="color:blue" %)**Interrupt Mode can be used to connect to external interrupt sensors such as:**
573 -
574 -**Case 1: Door Sensor.** 3.3v Out for such sensor is just to detect Open/Close.
575 -
576 - In Open State, the power consumption is the same as if there is no probe
577 -
578 - In Close state, the power consumption will be 3uA higher than normal.
579 -
580 -[[image:image-20220906100852-1.png||height="205" width="377"]]
581 -
582 -
583 -Ext=4,Interrupt Sensor：
584 -
585 -(% border="2" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:512px" %)
586 -|(% style="width:117px" %)(((
587 -AT+EXT=4,1
588 -)))|(% style="width:371px" %)(((
589 -Sent uplink packet in both rising and falling interrupt
590 -)))
591 -|(% style="width:117px" %)(((
592 -AT+EXT=4,2
593 -)))|(% style="width:371px" %)(((
594 -Sent uplink packet only in falling interrupt
595 -)))
596 -|(% style="width:117px" %)(((
597 -AT+EXT=4,3
598 -)))|(% style="width:371px" %)(((
599 -Sent uplink packet only in rising interrupt
600 -)))
601 -
602 -Trigger by falling edge:
603 -
604 -[[image:image-20220906101145-2.png]]
605 -
606 -
607 -Trigger by raising edge：
608 -
609 -[[image:image-20220906101145-3.png]]
610 -
611 -
612 -
613 -
614 -==== 2.4.6.6 Ext~=8 Counting Mode（since v1.3） ====
615 -
616 -
617 -(% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will count for every interrupt and uplink periodically.**
618 -
619 -
620 -(% 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.
621 -
622 -[[image:image-20220906101320-4.png||height="366" width="698"]]
623 -
624 -
625 -(% 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
626 -
627 -[[image:image-20220906101320-5.png||height="353" width="696"]]
628 -
629 -Ext=8, Counting Sensor ( 4 bytes)：
630 -
631 -(% border="2" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:381px" %)
632 -|(% style="width:138px" %)(((
633 -AT+EXT=8,0
634 -)))|(% style="width:240px" %)(((
635 -Count at falling interrupt
636 -)))
637 -|(% style="width:138px" %)(((
638 -AT+EXT=8,1
639 -)))|(% style="width:240px" %)(((
640 -Count at rising interrupt
641 -)))
642 -|(% style="width:138px" %)(((
643 -AT+SETCNT=60
644 -)))|(% style="width:240px" %)(((
645 -Sent current count to 60
646 -)))
647 -
648 -[[image:image-20220906101320-6.png]]
649 -
650 -
651 -(% style="color:blue" %)**A2 downlink Command：**
652 -
653 -A2 02:  Same as AT+EXT=2 (AT+EXT= second byte)
654 -
655 -A2 06 01 F4:  Same as AT+EXT=6,500 (AT+EXT= second byte, third and fourth bytes)
656 -
657 -A2 04 02:  Same as AT+EXT=4,2 (AT+EXT= second byte, third byte)
658 -
659 -A2 08 01 00:  Same as AT+EXT=8,0 (AT+EXT= second byte, fourth byte)
660 -
661 -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)
662 -
663 -
664 -(% style="color:blue" %)**Modified ATWOOD command for external sensor TMP117 or DS18B20 temperature alarm.**
665 -
666 -
667 -(% style="color:#037691" %)**AT+WMOD=parameter1,parameter2,parameter3,parameter4**
668 -
669 -(% style="color:#037691" %)**Parameter 1**(%%):  Alarm mode:
670 -
671 -0): Cancel
672 -
673 -1): Threshold alarm
674 -
675 -2): Fluctuation alarm
676 -
677 -
678 -(% style="color:#037691" %)** Parameter 2**(%%):  Sampling time. Unit: seconds, up to 255 seconds.
679 -
680 -(% 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.**
681 -
682 -
683 -(% style="color:#037691" %) **Parameter 3 and parameter 4:**
684 -
685 -1):  If Alarm Mode is set to 1: Parameter 3 and parameter 4 are valid, as before, they represent low temperature and high temperature.
686 -
687 -Such as AT+WMOD=1,60,45,105, it means high and low temperature alarm.
688 -
689 -
690 -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.
691 -
692 -Such as AT+WMOD=2,10,2,it means that it is a fluctuation alarm.
693 -
694 -If the difference between the current collected temperature and the last Uplin is ±2 degrees, the alarm will be issued.
695 -
696 -
697 -(% style="color:blue" %)** Downlink:**
698 -
699 -0xA5 00 ~-~- AT+WMOD=0.
700 -
701 -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 )
702 -
703 -0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
704 -
705 -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.
706 -
707 -
708 -
709 -
710 710  == 2.5 Show data on Datacake ==
711 711  
712 712  
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770 770  There are two methods:
771 771  
772 772  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
773 -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.
614 +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.
774 774  
775 775  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
776 776  
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1269 1269  
1270 1270  = 3. Sensors and Accessories =
1271 1271  
1272 -
1273 1273  == 3.1 E2 Extension Cable ==
1274 1274  
1275 1275  
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1318 1318  
1319 1319  
1320 1320  
1161 +
1321 1321  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1322 1322  
1323 1323  
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1639 1639  
1640 1640  = 5. Battery & How to replace =
1641 1641  
1642 -
1643 1643  == 5.1 Battery Type ==
1644 1644  
1645 1645  
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2089 2089  
2090 2090  (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
2091 2091  
2092 -* (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1932 +(% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1933 +
2093 2093  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1935 +
2094 2094  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1937 +
2095 2095  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1939 +
2096 2096  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1941 +
2097 2097  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1943 +
2098 2098  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1945 +
2099 2099  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
2100 2100  
2101 2101  (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
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2104 2104  
2105 2105  
2106 2106  
2107 -
2108 2108  = 8. Packing Info =
2109 2109  
2110 2110  
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2120 2120  
2121 2121  
2122 2122  
2123 -
2124 2124  = 9. Reference material =
2125 2125  
2126 2126  
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2128 2128  
2129 2129  
2130 2130  
2131 -
2132 2132  = 10. FCC Warning =
2133 2133  
2134 2134  
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2137 2137  (1) This device may not cause harmful interference；
2138 2138  
2139 2139  (2) this device must accept any interference received, including interference that may cause undesired operation.
2140 -
2141 -
2142 -
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