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Last modified by Xiaoling on 2023/07/18 10:12
From version 197.1
edited by Bei Jinggeng
on 2022/09/06 10:23
Change comment: Uploaded new attachment "image-20220906102307-7.png", version {1}
To version 200.1
edited by Bei Jinggeng
on 2022/09/27 09:56
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -16,6 +16,7 @@
16 16  
17 17  = 1. Introduction =
18 18  
19 +
19 19  == 1.1 What is LHT65N Temperature & Humidity Sensor ==
20 20  
21 21  
... ... @@ -44,6 +44,7 @@
44 44  )))
45 45  
46 46  
48 +
47 47  == 1.2 Features ==
48 48  
49 49  
... ... @@ -64,7 +64,7 @@
64 64  == 1.3 Specification ==
65 65  
66 66  
67 -**Built-in Temperature Sensor:**
69 +(% style="color:#037691" %)**Built-in Temperature Sensor:**
68 68  
69 69  * Resolution: 0.01 °C
70 70  * Accuracy Tolerance : Typ ±0.3 °C
... ... @@ -71,7 +71,7 @@
71 71  * Long Term Drift: < 0.02 °C/yr
72 72  * Operating Range: -40 ~~ 85 °C
73 73  
74 -**Built-in Humidity Sensor:**
76 +(% style="color:#037691" %)**Built-in Humidity Sensor:**
75 75  
76 76  * Resolution: 0.04 %RH
77 77  * Accuracy Tolerance : Typ ±3 %RH
... ... @@ -78,7 +78,7 @@
78 78  * Long Term Drift: < 0.02 °C/yr
79 79  * Operating Range: 0 ~~ 96 %RH
80 80  
81 -**External Temperature Sensor:**
83 +(% style="color:#037691" %)**External Temperature Sensor:**
82 82  
83 83  * Resolution: 0.0625 °C
84 84  * ±0.5°C accuracy from -10°C to +85°C
... ... @@ -89,6 +89,7 @@
89 89  
90 90  = 2. Connect LHT65N to IoT Server =
91 91  
94 +
92 92  == 2.1 How does LHT65N work? ==
93 93  
94 94  
... ... @@ -277,7 +277,6 @@
277 277  * 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.)
278 278  
279 279  
280 -
281 281  === 2.4.1 Decoder in TTN V3 ===
282 282  
283 283  
... ... @@ -311,7 +311,6 @@
311 311  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
312 312  
313 313  
314 -
315 315  === 2.4.3 Built-in Temperature ===
316 316  
317 317  
... ... @@ -324,7 +324,6 @@
324 324  * Temperature:  (0xF5C6-65536)/100=-26.18℃
325 325  
326 326  
327 -
328 328  === 2.4.4 Built-in Humidity ===
329 329  
330 330  
... ... @@ -333,7 +333,6 @@
333 333  * Humidity:    0x025C/10=60.4%
334 334  
335 335  
336 -
337 337  === 2.4.5 Ext # ===
338 338  
339 339  
... ... @@ -502,7 +502,7 @@
502 502  
503 503  sensor by setting:
504 504  
505 -AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
504 +AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)**Time to power this sensor, from 0 ~~ 65535ms**
506 506  
507 507  For example:
508 508  
... ... @@ -525,6 +525,7 @@
525 525  
526 526  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.
527 527  
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]]
... ... @@ -541,6 +541,166 @@
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 +
544 544  == 2.5 Show data on Datacake ==
545 545  
546 546  
... ... @@ -1102,6 +1102,7 @@
1102 1102  
1103 1103  = 3. Sensors and Accessories =
1104 1104  
1265 +
1105 1105  == 3.1 E2 Extension Cable ==
1106 1106  
1107 1107  
... ... @@ -1149,7 +1149,6 @@
1149 1149  * Working voltage 2.35v ~~ 5v
1150 1150  
1151 1151  
1152 -
1153 1153  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1154 1154  
1155 1155  
... ... @@ -1465,6 +1465,7 @@
1465 1465  
1466 1466  = 5. Battery & How to replace =
1467 1467  
1628 +
1468 1468  == 5.1 Battery Type ==
1469 1469  
1470 1470  
... ... @@ -1914,20 +1914,13 @@
1914 1914  
1915 1915  (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1916 1916  
1917 -(% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1918 -
2078 +* (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1919 1919  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1920 -
1921 1921  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1922 -
1923 1923  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1924 -
1925 1925  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1926 -
1927 1927  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1928 -
1929 1929  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1930 -
1931 1931  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1932 1932  
1933 1933  (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
... ... @@ -1935,6 +1935,7 @@
1935 1935  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1936 1936  
1937 1937  
2092 +
1938 1938  = 8. Packing Info =
1939 1939  
1940 1940  
... ... @@ -1949,6 +1949,7 @@
1949 1949  * Device Weight: 120.5g
1950 1950  
1951 1951  
2107 +
1952 1952  = 9. Reference material =
1953 1953  
1954 1954  
... ... @@ -1955,6 +1955,7 @@
1955 1955  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1956 1956  
1957 1957  
2114 +
1958 1958  = 10. FCC Warning =
1959 1959  
1960 1960  
... ... @@ -1963,3 +1963,6 @@
1963 1963  (1) This device may not cause harmful interference；
1964 1964  
1965 1965  (2) this device must accept any interference received, including interference that may cause undesired operation.
2123 +
2124 +
2125 +
image-20220927095645-1.png
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