Skip to Content
Last modified by Xiaoling on 2023/07/18 10:12
From version 198.3
edited by Xiaoling
on 2022/09/06 14:25
Change comment: There is no comment for this version
To version 197.1
edited by Bei Jinggeng
on 2022/09/06 10:23
Change comment: Uploaded new attachment "image-20220906102307-7.png", version {1}

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
... ... @@ -16,7 +16,6 @@
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  
... ... @@ -62,10 +62,11 @@
62 62  * Datalog feature (Max 3328 records)
63 63  
64 64  
63 +
65 65  == 1.3 Specification ==
66 66  
67 67  
68 -(% style="color:#037691" %)**Built-in Temperature Sensor:**
67 +**Built-in Temperature Sensor:**
69 69  
70 70  * Resolution: 0.01 °C
71 71  * Accuracy Tolerance : Typ ±0.3 °C
... ... @@ -72,7 +72,7 @@
72 72  * Long Term Drift: < 0.02 °C/yr
73 73  * Operating Range: -40 ~~ 85 °C
74 74  
75 -(% style="color:#037691" %)**Built-in Humidity Sensor:**
74 +**Built-in Humidity Sensor:**
76 76  
77 77  * Resolution: 0.04 %RH
78 78  * Accuracy Tolerance : Typ ±3 %RH
... ... @@ -79,7 +79,7 @@
79 79  * Long Term Drift: < 0.02 °C/yr
80 80  * Operating Range: 0 ~~ 96 %RH
81 81  
82 -(% style="color:#037691" %)**External Temperature Sensor:**
81 +**External Temperature Sensor:**
83 83  
84 84  * Resolution: 0.0625 °C
85 85  * ±0.5°C accuracy from -10°C to +85°C
... ... @@ -87,9 +87,9 @@
87 87  * Operating Range: -55 °C ~~ 125 °C
88 88  
89 89  
89 +
90 90  = 2. Connect LHT65N to IoT Server =
91 91  
92 -
93 93  == 2.1 How does LHT65N work? ==
94 94  
95 95  
... ... @@ -320,7 +320,6 @@
320 320  
321 321  * Temperature:  0x0ABB/100=27.47℃
322 322  
323 -
324 324  [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
325 325  
326 326  * Temperature:  (0xF5C6-65536)/100=-26.18℃
... ... @@ -495,7 +495,6 @@
495 495  
496 496  
497 497  
498 -
499 499  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
500 500  
501 501  
... ... @@ -505,7 +505,7 @@
505 505  
506 506  sensor by setting:
507 507  
508 -AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)**Time to power this sensor, from 0 ~~ 65535ms**
505 +AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
509 509  
510 510  For example:
511 511  
... ... @@ -528,7 +528,6 @@
528 528  
529 529  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.
530 530  
531 -
532 532  1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
533 533  
534 534  [[image:image-20220628151005-5.png]]
... ... @@ -545,165 +545,6 @@
545 545  
546 546  
547 547  
548 -==== 2.4.6.4 Ext~=2 TMP117 Sensor （since v1.3） ====
549 -
550 -
551 -**Ext=2,Temperature Sensor(TMP117)：**
552 -
553 -[[image:image-20220906102307-7.png]]
554 -
555 -
556 -(% style="color:blue" %)**Interrupt Mode and Counting Mode:**
557 -
558 -The external cable NE2 can be use for MOD4 and MOD8
559 -
560 -
561 -
562 -
563 -==== 2.4.6.5 Ext~=4 Interrupt Mode （since v1.3） ====
564 -
565 -
566 -(% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will send an uplink when there is a trigger.**
567 -
568 -
569 -(% style="color:blue" %)**Interrupt Mode can be used to connect to external interrupt sensors such as:**
570 -
571 -**Case 1: Door Sensor.** 3.3v Out for such sensor is just to detect Open/Close.
572 -
573 - In Open State, the power consumption is the same as if there is no probe
574 -
575 - In Close state, the power consumption will be 3uA higher than normal.
576 -
577 -[[image:image-20220906100852-1.png||height="205" width="377"]]
578 -
579 -
580 -Ext=4,Interrupt Sensor：
581 -
582 -(% border="2" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:512px" %)
583 -|(% style="width:117px" %)(((
584 -AT+EXT=4,1
585 -)))|(% style="width:371px" %)(((
586 -Sent uplink packet in both rising and falling interrupt
587 -)))
588 -|(% style="width:117px" %)(((
589 -AT+EXT=4,2
590 -)))|(% style="width:371px" %)(((
591 -Sent uplink packet only in falling interrupt
592 -)))
593 -|(% style="width:117px" %)(((
594 -AT+EXT=4,3
595 -)))|(% style="width:371px" %)(((
596 -Sent uplink packet only in rising interrupt
597 -)))
598 -
599 -Trigger by falling edge:
600 -
601 -[[image:image-20220906101145-2.png]]
602 -
603 -
604 -Trigger by raising edge：
605 -
606 -[[image:image-20220906101145-3.png]]
607 -
608 -
609 -
610 -
611 -==== 2.4.6.6 Ext~=8 Counting Mode（since v1.3） ====
612 -
613 -
614 -(% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will count for every interrupt and uplink periodically.**
615 -
616 -
617 -(% 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.
618 -
619 -[[image:image-20220906101320-4.png||height="366" width="698"]]
620 -
621 -
622 -(% 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
623 -
624 -[[image:image-20220906101320-5.png||height="353" width="696"]]
625 -
626 -Ext=8, Counting Sensor ( 4 bytes)：
627 -
628 -(% border="2" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:381px" %)
629 -|(% style="width:138px" %)(((
630 -AT+EXT=8,0
631 -)))|(% style="width:240px" %)(((
632 -Count at falling interrupt
633 -)))
634 -|(% style="width:138px" %)(((
635 -AT+EXT=8,1
636 -)))|(% style="width:240px" %)(((
637 -Count at rising interrupt
638 -)))
639 -|(% style="width:138px" %)(((
640 -AT+SETCNT=60
641 -)))|(% style="width:240px" %)(((
642 -Sent current count to 60
643 -)))
644 -
645 -[[image:image-20220906101320-6.png]]
646 -
647 -
648 -(% style="color:blue" %)**A2 downlink Command：**
649 -
650 -A2 02:  Same as AT+EXT=2 (AT+EXT= second byte)
651 -
652 -A2 06 01 F4:  Same as AT+EXT=6,500 (AT+EXT= second byte, third and fourth bytes)
653 -
654 -A2 04 02:  Same as AT+EXT=4,2 (AT+EXT= second byte, third byte)
655 -
656 -A2 08 01 00:  Same as AT+EXT=8,0 (AT+EXT= second byte, fourth byte)
657 -
658 -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)
659 -
660 -
661 -(% style="color:blue" %)**Modified ATWOOD command for external sensor TMP117 or DS18B20 temperature alarm.**
662 -
663 -
664 -(% style="color:#037691" %)**AT+WMOD=parameter1,parameter2,parameter3,parameter4**
665 -
666 -(% style="color:#037691" %)**Parameter 1**(%%):  Alarm mode:
667 -
668 -0): Cancel
669 -
670 -1): Threshold alarm
671 -
672 -2): Fluctuation alarm
673 -
674 -
675 -(% style="color:#037691" %)** Parameter 2**(%%):  Sampling time. Unit: seconds, up to 255 seconds.
676 -
677 -(% 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.**
678 -
679 -
680 -(% style="color:#037691" %) **Parameter 3 and parameter 4:**
681 -
682 -1):  If Alarm Mode is set to 1: Parameter 3 and parameter 4 are valid, as before, they represent low temperature and high temperature.
683 -
684 -Such as AT+WMOD=1,60,45,105, it means high and low temperature alarm.
685 -
686 -
687 -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.
688 -
689 -Such as AT+WMOD=2,10,2,it means that it is a fluctuation alarm.
690 -
691 -If the difference between the current collected temperature and the last Uplin is ±2 degrees, the alarm will be issued.
692 -
693 -
694 -(% style="color:blue" %)** Downlink:**
695 -
696 -0xA5 00 ~-~- AT+WMOD=0.
697 -
698 -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 )
699 -
700 -0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
701 -
702 -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.
703 -
704 -
705 -
706 -
707 707  == 2.5 Show data on Datacake ==
708 708  
709 709  
... ... @@ -1255,7 +1255,6 @@
1255 1255  
1256 1256  
1257 1257  
1258 -
1259 1259  == 2.9 installation ==
1260 1260  
1261 1261  
... ... @@ -1266,7 +1266,6 @@
1266 1266  
1267 1267  = 3. Sensors and Accessories =
1268 1268  
1269 -
1270 1270  == 3.1 E2 Extension Cable ==
1271 1271  
1272 1272  
... ... @@ -1315,7 +1315,6 @@
1315 1315  
1316 1316  
1317 1317  
1318 -
1319 1319  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1320 1320  
1321 1321  
... ... @@ -1387,7 +1387,6 @@
1387 1387  
1388 1388  
1389 1389  
1390 -
1391 1391  == 4.2 Set External Sensor Mode ==
1392 1392  
1393 1393  
... ... @@ -1413,7 +1413,6 @@
1413 1413  
1414 1414  
1415 1415  
1416 -
1417 1417  == 4.3 Enable/Disable uplink Temperature probe ID ==
1418 1418  
1419 1419  
... ... @@ -1446,7 +1446,6 @@
1446 1446  
1447 1447  
1448 1448  
1449 -
1450 1450  == 4.4 Set Password ==
1451 1451  
1452 1452  
... ... @@ -1500,7 +1500,6 @@
1500 1500  
1501 1501  
1502 1502  
1503 -
1504 1504  == 4.7 Set system time ==
1505 1505  
1506 1506  
... ... @@ -1611,7 +1611,6 @@
1611 1611  
1612 1612  
1613 1613  
1614 -
1615 1615  == 4.13 Auto Send None-ACK messages ==
1616 1616  
1617 1617  
... ... @@ -1634,10 +1634,8 @@
1634 1634  
1635 1635  
1636 1636  
1637 -
1638 1638  = 5. Battery & How to replace =
1639 1639  
1640 -
1641 1641  == 5.1 Battery Type ==
1642 1642  
1643 1643  
... ... @@ -2087,13 +2087,20 @@
2087 2087  
2088 2088  (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
2089 2089  
2090 -* (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1917 +(% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1918 +
2091 2091  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1920 +
2092 2092  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1922 +
2093 2093  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1924 +
2094 2094  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1926 +
2095 2095  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1928 +
2096 2096  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1930 +
2097 2097  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
2098 2098  
2099 2099  (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
... ... @@ -2101,8 +2101,6 @@
2101 2101  * (% style="color:red" %)**E3**(%%): External Temperature Probe
2102 2102  
2103 2103  
2104 -
2105 -
2106 2106  = 8. Packing Info =
2107 2107  
2108 2108  
... ... @@ -2117,8 +2117,6 @@
2117 2117  * Device Weight: 120.5g
2118 2118  
2119 2119  
2120 -
2121 -
2122 2122  = 9. Reference material =
2123 2123  
2124 2124  
... ... @@ -2125,8 +2125,6 @@
2125 2125  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
2126 2126  
2127 2127  
2128 -
2129 -
2130 2130  = 10. FCC Warning =
2131 2131  
2132 2132  
... ... @@ -2135,6 +2135,3 @@
2135 2135  (1) This device may not cause harmful interference；
2136 2136  
2137 2137  (2) this device must accept any interference received, including interference that may cause undesired operation.
2138 -
2139 -
2140 -