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Last modified by Xiaoling on 2023/07/18 10:12
From version 189.9
edited by Xiaoling
on 2022/08/08 16:38
Change comment: There is no comment for this version
To version 205.1
edited by Edwin Chen
on 2022/10/11 18:16
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.Edwin
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  
... ... @@ -57,14 +57,12 @@
57 57  * Built-in Temperature & Humidity sensor
58 58  * Optional External Sensors
59 59  * Tri-color LED to indicate working status
60 -* Datalog feature
62 +* Datalog feature (Max 3328 records)
61 61  
62 -
63 -
64 64  == 1.3 Specification ==
65 65  
66 66  
67 -**Built-in Temperature Sensor:**
67 +(% style="color:#037691" %)**Built-in Temperature Sensor:**
68 68  
69 69  * Resolution: 0.01 °C
70 70  * Accuracy Tolerance : Typ ±0.3 °C
... ... @@ -71,28 +71,23 @@
71 71  * Long Term Drift: < 0.02 °C/yr
72 72  * Operating Range: -40 ~~ 85 °C
73 73  
74 +(% style="color:#037691" %)**Built-in Humidity Sensor:**
74 74  
75 -
76 -**Built-in Humidity Sensor:**
77 -
78 78  * Resolution: 0.04 %RH
79 79  * Accuracy Tolerance : Typ ±3 %RH
80 80  * Long Term Drift: < 0.02 °C/yr
81 81  * Operating Range: 0 ~~ 96 %RH
82 82  
81 +(% style="color:#037691" %)**External Temperature Sensor:**
83 83  
84 -
85 -**External Temperature Sensor:**
86 -
87 87  * Resolution: 0.0625 °C
88 88  * ±0.5°C accuracy from -10°C to +85°C
89 89  * ±2°C accuracy from -55°C to +125°C
90 90  * Operating Range: -55 °C ~~ 125 °C
91 91  
92 -
93 -
94 94  = 2. Connect LHT65N to IoT Server =
95 95  
90 +
96 96  == 2.1 How does LHT65N work? ==
97 97  
98 98  
... ... @@ -137,6 +137,7 @@
137 137  (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
138 138  This section shows an example of how to join the TTN V3 LoRaWAN IoT server. Use with other LoRaWAN IoT servers is of a similar procedure.
139 139  
135 +
140 140  (% _mstvisible="1" class="wikigeneratedid" %)
141 141  [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
142 142  
... ... @@ -280,8 +280,6 @@
280 280  * The 7th byte (EXT #): defines the external sensor model.
281 281  * 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.)
282 282  
283 -
284 -
285 285  === 2.4.1 Decoder in TTN V3 ===
286 286  
287 287  
... ... @@ -314,8 +314,6 @@
314 314  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
315 315  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
316 316  
317 -
318 -
319 319  === 2.4.3 Built-in Temperature ===
320 320  
321 321  
... ... @@ -327,8 +327,6 @@
327 327  
328 328  * Temperature:  (0xF5C6-65536)/100=-26.18℃
329 329  
330 -
331 -
332 332  === 2.4.4 Built-in Humidity ===
333 333  
334 334  
... ... @@ -336,8 +336,6 @@
336 336  
337 337  * Humidity:    0x025C/10=60.4%
338 338  
339 -
340 -
341 341  === 2.4.5 Ext # ===
342 342  
343 343  
... ... @@ -349,6 +349,7 @@
349 349  
350 350  === 2.4.6 Ext value ===
351 351  
340 +
352 352  ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
353 353  
354 354  
... ... @@ -494,8 +494,6 @@
494 494  * (% 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.
495 495  * (% 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)
496 496  
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
495 +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  
... ... @@ -528,6 +528,7 @@
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  
518 +
531 531  1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
532 532  
533 533  [[image:image-20220628151005-5.png]]
... ... @@ -544,6 +544,168 @@
544 544  
545 545  
546 546  
535 +==== 2.4.6.4 Ext~=2 TMP117 Sensor （Since Firmware v1.3） ====
536 +
537 +
538 +[[image:image-20220927095645-1.png||height="534" width="460"]]
539 +
540 +
541 +**Ext=2,Temperature Sensor(TMP117)：**
542 +
543 +[[image:image-20220906102307-7.png]]
544 +
545 +
546 +(% style="color:blue" %)**Interrupt Mode and Counting Mode:**
547 +
548 +The external cable NE2 can be use for MOD4 and MOD8
549 +
550 +
551 +
552 +
553 +==== 2.4.6.5 Ext~=4 Interrupt Mode （Since Firmware v1.3） ====
554 +
555 +
556 +(% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will send an uplink when there is a trigger.**
557 +
558 +
559 +(% style="color:blue" %)**Interrupt Mode can be used to connect to external interrupt sensors such as:**
560 +
561 +**Case 1: Door Sensor.** 3.3v Out for such sensor is just to detect Open/Close.
562 +
563 + In Open State, the power consumption is the same as if there is no probe
564 +
565 + In Close state, the power consumption will be 3uA higher than normal.
566 +
567 +[[image:image-20220906100852-1.png||height="205" width="377"]]
568 +
569 +
570 +Ext=4,Interrupt Sensor：
571 +
572 +(% border="2" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:512px" %)
573 +|(% style="width:117px" %)(((
574 +AT+EXT=4,1
575 +)))|(% style="width:371px" %)(((
576 +Sent uplink packet in both rising and falling interrupt
577 +)))
578 +|(% style="width:117px" %)(((
579 +AT+EXT=4,2
580 +)))|(% style="width:371px" %)(((
581 +Sent uplink packet only in falling interrupt
582 +)))
583 +|(% style="width:117px" %)(((
584 +AT+EXT=4,3
585 +)))|(% style="width:371px" %)(((
586 +Sent uplink packet only in rising interrupt
587 +)))
588 +
589 +Trigger by falling edge:
590 +
591 +[[image:image-20220906101145-2.png]]
592 +
593 +
594 +Trigger by raising edge：
595 +
596 +[[image:image-20220906101145-3.png]]
597 +
598 +
599 +
600 +
601 +==== 2.4.6.6 Ext~=8 Counting Mode（Since Firmware v1.3） ====
602 +
603 +
604 +(% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will count for every interrupt and uplink periodically.**
605 +
606 +
607 +(% 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.
608 +
609 +[[image:image-20220906101320-4.png||height="366" width="698"]]
610 +
611 +
612 +(% 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
613 +
614 +[[image:image-20220906101320-5.png||height="353" width="696"]]
615 +
616 +Ext=8, Counting Sensor ( 4 bytes)：
617 +
618 +(% border="2" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:381px" %)
619 +|(% style="width:138px" %)(((
620 +AT+EXT=8,0
621 +)))|(% style="width:240px" %)(((
622 +Count at falling interrupt
623 +)))
624 +|(% style="width:138px" %)(((
625 +AT+EXT=8,1
626 +)))|(% style="width:240px" %)(((
627 +Count at rising interrupt
628 +)))
629 +|(% style="width:138px" %)(((
630 +AT+SETCNT=60
631 +)))|(% style="width:240px" %)(((
632 +Sent current count to 60
633 +)))
634 +
635 +[[image:image-20220906101320-6.png]]
636 +
637 +
638 +(% style="color:blue" %)**A2 downlink Command：**
639 +
640 +A2 02:  Same as AT+EXT=2 (AT+EXT= second byte)
641 +
642 +A2 06 01 F4:  Same as AT+EXT=6,500 (AT+EXT= second byte, third and fourth bytes)
643 +
644 +A2 04 02:  Same as AT+EXT=4,2 (AT+EXT= second byte, third byte)
645 +
646 +A2 08 01 00:  Same as AT+EXT=8,0 (AT+EXT= second byte, fourth byte)
647 +
648 +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)
649 +
650 +
651 +(% style="color:blue" %)**Modified ATWOOD command for external sensor TMP117 or DS18B20 temperature alarm.**
652 +
653 +
654 +(% style="color:#037691" %)**AT+WMOD=parameter1,parameter2,parameter3,parameter4**
655 +
656 +(% style="color:#037691" %)**Parameter 1**(%%):  Alarm mode:
657 +
658 +0): Cancel
659 +
660 +1): Threshold alarm
661 +
662 +2): Fluctuation alarm
663 +
664 +
665 +(% style="color:#037691" %)** Parameter 2**(%%):  Sampling time. Unit: seconds, up to 255 seconds.
666 +
667 +(% 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.**
668 +
669 +
670 +(% style="color:#037691" %) **Parameter 3 and parameter 4:**
671 +
672 +1):  If Alarm Mode is set to 1: Parameter 3 and parameter 4 are valid, as before, they represent low temperature and high temperature.
673 +
674 +Such as AT+WMOD=1,60,45,105, it means high and low temperature alarm.
675 +
676 +
677 +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.
678 +
679 +Such as AT+WMOD=2,10,2,it means that it is a fluctuation alarm.
680 +
681 +If the difference between the current collected temperature and the last Uplin is ±2 degrees, the alarm will be issued.
682 +
683 +
684 +(% style="color:blue" %)** Downlink:**
685 +
686 +0xA5 00 ~-~- AT+WMOD=0.
687 +
688 +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 )
689 +
690 +0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
691 +
692 +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.
693 +
694 +
695 +
696 +
547 547  == 2.5 Show data on Datacake ==
548 548  
549 549  
... ... @@ -606,11 +606,19 @@
606 606  
607 607  There are two methods:
608 608  
609 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
610 -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.
759 +**Method 1**: IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.
611 611  
761 +
762 +**Method 2: **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 messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
763 +
764 +**Note for method 2:**
765 +
766 +* a) LHT65N will do an ACK check for data records sending to make sure every data arrive server.
767 +* b) LHT65N will send data in **CONFIRMED Mode** when PNACKMD=1, but LHT65N won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if LHT65N gets a ACK, LHT65N will consider there is a network connection and resend all NONE-ACK Message.
768 +
612 612  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
613 613  
771 +
614 614  [[image:image-20220703111700-2.png||height="381" width="1119"]]
615 615  
616 616  
... ... @@ -828,20 +828,22 @@
828 828  )))
829 829  )))
830 830  
831 -
832 832  (% _mstvisible="1" %)
833 833  (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
834 834  
835 835  (% _mstvisible="1" %)
836 -[[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
837 -
838 -(% _mstvisible="1" %)
839 839  (((
840 840  (% _mstvisible="2" %)
841 841  (((
842 842  (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
843 843  (((
844 -Poll Message Flag: 1: This message is a poll message reply.
998 +[[image:image-20221006192726-1.png||height="112" width="754"]]
999 +
1000 +(% class="mark" %)No ACK Message(%%): 1: This message means this payload is fromn Uplink Message which doesn't get ACK from the server before ( for [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]] feature)
1001 +
1002 +(% class="mark" %)Poll Message Flag(%%): 1: This message is a poll message reply.
1003 +
1004 +
845 845  )))
846 846  )))
847 847  )))
... ... @@ -982,6 +982,7 @@
982 982  (% _mstvisible="1" %)
983 983  [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
984 984  
1145 +
985 985  (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
986 986  (((
987 987  7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
... ... @@ -1094,8 +1094,6 @@
1094 1094  * RED LED when external sensor is not connected
1095 1095  * For each success downlink, the PURPLE LED will blink once
1096 1096  
1097 -
1098 -
1099 1099  == 2.9 installation ==
1100 1100  
1101 1101  
... ... @@ -1106,6 +1106,7 @@
1106 1106  
1107 1107  = 3. Sensors and Accessories =
1108 1108  
1268 +
1109 1109  == 3.1 E2 Extension Cable ==
1110 1110  
1111 1111  
... ... @@ -1152,8 +1152,6 @@
1152 1152  * Operating Range: -40 ~~ 125 °C
1153 1153  * Working voltage 2.35v ~~ 5v
1154 1154  
1155 -
1156 -
1157 1157  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1158 1158  
1159 1159  
... ... @@ -1223,8 +1223,6 @@
1223 1223  
1224 1224  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1225 1225  
1226 -
1227 -
1228 1228  == 4.2 Set External Sensor Mode ==
1229 1229  
1230 1230  
... ... @@ -1248,8 +1248,6 @@
1248 1248  
1249 1249  * 0xA20702003c: Same as AT+SETCNT=60
1250 1250  
1251 -
1252 -
1253 1253  == 4.3 Enable/Disable uplink Temperature probe ID ==
1254 1254  
1255 1255  
... ... @@ -1280,8 +1280,6 @@
1280 1280  * **0xA800**  **~-~->** AT+PID=0
1281 1281  * **0xA801**     **~-~->** AT+PID=1
1282 1282  
1283 -
1284 -
1285 1285  == 4.4 Set Password ==
1286 1286  
1287 1287  
... ... @@ -1324,8 +1324,6 @@
1324 1324  * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1325 1325  * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1326 1326  
1327 -
1328 -
1329 1329  (% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1330 1330  
1331 1331  [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
... ... @@ -1335,8 +1335,6 @@
1335 1335  
1336 1336  * There is no downlink command to set to Sleep mode.
1337 1337  
1338 -
1339 -
1340 1340  == 4.7 Set system time ==
1341 1341  
1342 1342  
... ... @@ -1350,7 +1350,7 @@
1350 1350  
1351 1351  (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1352 1352  
1353 -0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1501 +0x306007806000  ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1354 1354  
1355 1355  
1356 1356  
... ... @@ -1374,8 +1374,8 @@
1374 1374  
1375 1375  (% style="color:#4f81bd" %)**Downlink Command:**
1376 1376  
1377 -0x28 01 ~/~/ Same As AT+SYNCMOD=1
1378 -0x28 00 ~/~/ Same As AT+SYNCMOD=0
1525 +0x28 01  ~/~/  Same As AT+SYNCMOD=1
1526 +0x28 00  ~/~/  Same As AT+SYNCMOD=0
1379 1379  
1380 1380  
1381 1381  
... ... @@ -1415,8 +1415,10 @@
1415 1415  
1416 1416  == 4.11 Print last few data entries. ==
1417 1417  
1566 +
1418 1418  Feature: Print the last few data entries
1419 1419  
1569 +
1420 1420  (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1421 1421  
1422 1422  [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
... ... @@ -1430,6 +1430,7 @@
1430 1430  
1431 1431  == 4.12 Clear Flash Record ==
1432 1432  
1583 +
1433 1433  Feature: Clear flash storage for data log feature.
1434 1434  
1435 1435  
... ... @@ -1442,12 +1442,13 @@
1442 1442  
1443 1443  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1444 1444  
1445 -
1446 1446  == 4.13 Auto Send None-ACK messages ==
1447 1447  
1598 +
1448 1448  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1449 1449  Feature: LHT65N will wait for ACK for each uplink, If LHT65N doesn't get ACK from the IoT server, it will consider the message doesn't arrive server and store it. LHT65N keeps sending messages in normal periodically. Once LHT65N gets ACK from a server, it will consider the network is ok and start to send the not-arrive message.
1450 1450  
1602 +
1451 1451  (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1452 1452  
1453 1453  (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
... ... @@ -1461,11 +1461,12 @@
1461 1461  
1462 1462  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1463 1463  
1464 -
1465 1465  = 5. Battery & How to replace =
1466 1466  
1618 +
1467 1467  == 5.1 Battery Type ==
1468 1468  
1621 +
1469 1469  (((
1470 1470  (((
1471 1471  LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters.
... ... @@ -1486,8 +1486,10 @@
1486 1486  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1487 1487  
1488 1488  
1642 +
1489 1489  == 5.2 Replace Battery ==
1490 1490  
1645 +
1491 1491  LHT65N has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery. Any brand should be ok.
1492 1492  
1493 1493  [[image:image-20220515075440-2.png||_mstalt="429546" _mstvisible="3" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" _mstvisible="3" height="193" width="257"]]
... ... @@ -1495,6 +1495,7 @@
1495 1495  
1496 1496  == 5.3 Battery Life Analyze ==
1497 1497  
1653 +
1498 1498  (((
1499 1499  Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life:
1500 1500  [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
... ... @@ -1512,8 +1512,10 @@
1512 1512  
1513 1513  = 6. FAQ =
1514 1514  
1671 +
1515 1515  == 6.1 How to use AT Command? ==
1516 1516  
1674 +
1517 1517  LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to connect to LHT65 for using AT command, as below.
1518 1518  
1519 1519  [[image:image-20220530085651-1.png||_mstalt="429949"]]
... ... @@ -1524,7 +1524,6 @@
1524 1524  * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1525 1525  * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1526 1526  * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1527 -* (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1528 1528  
1529 1529  (((
1530 1530  In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**) (%%)to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
... ... @@ -1732,40 +1732,43 @@
1732 1732  AT+PID:  Get or set the PID
1733 1733  
1734 1734  
1892 +
1735 1735  == 6.2 Where to use AT commands and Downlink commands ==
1736 1736  
1737 -(% _msthash="506131" _msttexthash="14585714" %)
1738 -AT commands：
1739 1739  
1896 +**AT commands：**
1897 +
1740 1740  [[image:image-20220620153708-1.png||height="603" width="723"]]
1741 1741  
1742 -(% _msthash="506132" _msttexthash="337922" %)
1743 -Downlink commands:
1744 1744  
1901 +**Downlink commands:**
1745 1745  
1746 -(% _msthash="506133" _msttexthash="33046" %)
1747 -**TTN:**
1748 1748  
1904 +
1905 +(% style="color:blue" %)**TTN:**
1906 +
1749 1749  [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1750 1750  
1751 1751  
1752 -(% _msthash="506134" _msttexthash="11113791" %)
1753 -**Helium：**
1754 1754  
1911 +(% style="color:blue" %)**Helium：**
1912 +
1755 1755  [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1756 1756  
1757 1757  
1758 -(% _msthash="506135" _msttexthash="4159844" %)
1759 -**Chirpstack:The downlink window will not be displayed until the network is accessed**
1760 1760  
1917 +(% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
1918 +
1919 +
1761 1761  [[image:image-20220615094850-6.png||_mstalt="433082"]]
1762 1762  
1922 +
1763 1763  [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1764 1764  
1765 1765  
1766 -(% _msthash="506136" _msttexthash="39286" %)
1767 -**Aws:**
1768 1768  
1927 +(% style="color:blue" %)**Aws:**
1928 +
1769 1769  [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1770 1770  
1771 1771  
... ... @@ -1772,12 +1772,14 @@
1772 1772  
1773 1773  == 6.3 How to change the uplink interval？ ==
1774 1774  
1775 -[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_msthash="506137" _msttexthash="5712018"]]
1776 1776  
1936 +Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_msthash="506137" _msttexthash="5712018" style="background-color: rgb(255, 255, 255);"]]
1777 1777  
1778 1778  
1939 +
1779 1779  == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1780 1780  
1942 +
1781 1781  [[image:image-20220615153355-1.png]]
1782 1782  
1783 1783  [[image:1655802313617-381.png]]
... ... @@ -1805,6 +1805,7 @@
1805 1805  [[image:image-20220615170542-5.png]]
1806 1806  
1807 1807  
1970 +
1808 1808  (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1809 1809  
1810 1810  (% _msthash="506146" _msttexthash="52173160" %)
... ... @@ -1818,6 +1818,7 @@
1818 1818  [[image:image-20220621170938-2.png]]
1819 1819  
1820 1820  
1984 +
1821 1821  (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1822 1822  
1823 1823  [[image:image-20220615171334-6.png]]
... ... @@ -1834,13 +1834,16 @@
1834 1834  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1835 1835  
1836 1836  
2001 +
1837 1837  == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1838 1838  
2004 +
1839 1839  [[image:image-20220623110706-1.png]]
1840 1840  
1841 1841  
1842 1842  [[image:image-20220623112117-4.png||height="459" width="343"]]
1843 1843  
2010 +
1844 1844  (((
1845 1845  In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600** (%%)to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**(% style="color:red" %))(%%) to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
1846 1846  )))
... ... @@ -1851,15 +1851,19 @@
1851 1851  [[image:image-20220615154519-3.png||height="672" width="807"]]
1852 1852  
1853 1853  
2021 +
1854 1854  == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1855 1855  
2024 +
1856 1856  [[image:image-20220623110706-1.png]]
1857 1857  
2027 +
1858 1858  (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1859 1859  
1860 1860  [[image:image-20220615170542-5.png]]
1861 1861  
1862 1862  
2033 +
1863 1863  (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1864 1864  
1865 1865  (% _msthash="506146" _msttexthash="52173160" %)
... ... @@ -1871,6 +1871,8 @@
1871 1871  (% _msthash="506146" _msttexthash="52173160" %)
1872 1872  Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1873 1873  
2045 +
2046 +
1874 1874  (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1875 1875  
1876 1876  [[image:image-20220615171334-6.png]]
... ... @@ -1887,6 +1887,7 @@
1887 1887  Finally,restart reset device again
1888 1888  
1889 1889  
2063 +
1890 1890  = 7. Order Info =
1891 1891  
1892 1892  
... ... @@ -1894,20 +1894,13 @@
1894 1894  
1895 1895  (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1896 1896  
1897 -(% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1898 -
2071 +* (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1899 1899  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1900 -
1901 1901  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1902 -
1903 1903  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1904 -
1905 1905  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1906 -
1907 1907  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1908 -
1909 1909  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1910 -
1911 1911  * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1912 1912  
1913 1913  (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
... ... @@ -1914,7 +1914,6 @@
1914 1914  
1915 1915  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1916 1916  
1917 -
1918 1918  = 8. Packing Info =
1919 1919  
1920 1920  
... ... @@ -1928,16 +1928,19 @@
1928 1928  * Device Size:  10 x 10 x 3.5 cm
1929 1929  * Device Weight: 120.5g
1930 1930  
1931 -
1932 1932  = 9. Reference material =
1933 1933  
2099 +
1934 1934  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1935 1935  
1936 -
1937 1937  = 10. FCC Warning =
1938 1938  
2104 +
1939 1939  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1940 1940  
1941 1941  (1) This device may not cause harmful interference；
1942 1942  
1943 1943  (2) this device must accept any interference received, including interference that may cause undesired operation.
2110 +
2111 +
2112 +
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