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Last modified by Xiaoling on 2023/07/18 10:12
From version 198.2
edited by Xiaoling
on 2022/09/06 14:22
Change comment: There is no comment for this version
To version 189.10
edited by Xiaoling
on 2022/08/08 16:46
Change comment: There is no comment for this version

Summary

Details

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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  
... ... @@ -59,13 +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 65  == 1.3 Specification ==
66 66  
67 67  
68 -(% style="color:#037691" %)**Built-in Temperature Sensor:**
65 +**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:**
72 +**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:**
79 +**External Temperature Sensor:**
83 83  
84 84  * Resolution: 0.0625 °C
85 85  * ±0.5°C accuracy from -10°C to +85°C
... ... @@ -86,10 +86,8 @@
86 86  * ±2°C accuracy from -55°C to +125°C
87 87  * Operating Range: -55 °C ~~ 125 °C
88 88  
89 -
90 90  = 2. Connect LHT65N to IoT Server =
91 91  
92 -
93 93  == 2.1 How does LHT65N work? ==
94 94  
95 95  
... ... @@ -277,8 +277,6 @@
277 277  * The 7th byte (EXT #): defines the external sensor model.
278 278  * 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.)
279 279  
280 -
281 -
282 282  === 2.4.1 Decoder in TTN V3 ===
283 283  
284 284  
... ... @@ -311,8 +311,6 @@
311 311  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
312 312  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
313 313  
314 -
315 -
316 316  === 2.4.3 Built-in Temperature ===
317 317  
318 318  
... ... @@ -320,13 +320,10 @@
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℃
327 327  
328 -
329 -
330 330  === 2.4.4 Built-in Humidity ===
331 331  
332 332  
... ... @@ -334,8 +334,6 @@
334 334  
335 335  * Humidity:    0x025C/10=60.4%
336 336  
337 -
338 -
339 339  === 2.4.5 Ext # ===
340 340  
341 341  
... ... @@ -347,7 +347,6 @@
347 347  
348 348  === 2.4.6 Ext value ===
349 349  
350 -
351 351  ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
352 352  
353 353  
... ... @@ -493,9 +493,6 @@
493 493  * (% 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.
494 494  * (% 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)
495 495  
496 -
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**
490 +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  
... ... @@ -767,7 +767,7 @@
767 767  There are two methods:
768 768  
769 769  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
770 -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.
771 771  
772 772  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
773 773  
... ... @@ -2081,6 +2081,9 @@
2081 2081  
2082 2082  * (% style="color:red" %)**E3**(%%): External Temperature Probe
2083 2083  
1906 +
1907 +
1908 +
2084 2084  = 8. Packing Info =
2085 2085  
2086 2086  
... ... @@ -2094,11 +2094,17 @@
2094 2094  * Device Size:  10 x 10 x 3.5 cm
2095 2095  * Device Weight: 120.5g
2096 2096  
1922 +
1923 +
1924 +
2097 2097  = 9. Reference material =
2098 2098  
2099 2099  
2100 2100  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
2101 2101  
1930 +
1931 +
1932 +
2102 2102  = 10. FCC Warning =
2103 2103  
2104 2104  
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