Skip to Content
Last modified by Xiaoling on 2023/07/18 10:12
From version 170.27
edited by Xiaoling
on 2022/06/22 11:17
Change comment: There is no comment for this version
To version 185.2
edited by Xiaoling
on 2022/06/29 13:55
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -58,7 +58,6 @@
58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature
60 60  
61 -
62 62  == 1.3 Specification ==
63 63  
64 64  
... ... @@ -83,8 +83,6 @@
83 83  * ±2°C accuracy from -55°C to +125°C
84 84  * Operating Range: -55 °C ~~ 125 °C
85 85  
86 -
87 -
88 88  = 2. Connect LHT65N to IoT Server =
89 89  
90 90  == 2.1 How does LHT65N work? ==
... ... @@ -474,8 +474,42 @@
474 474  
475 475  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
476 476  
474 +For example:
477 477  
476 +AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
478 478  
478 +
479 +Or use **downlink command A2** to set the same.
480 +
481 +The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
482 +
483 +When the measured output voltage of the sensor is not within the range of 0.1V and 1.1V, the output voltage terminal of the sensor shall be divided The example in the following figure is to reduce the output voltage of the sensor by three times If it is necessary to reduce more times, calculate according to the formula in the figure and connect the corresponding resistance in series.
484 +
485 +[[image:image-20220628150112-1.png||height="241" width="285"]]
486 +
487 +
488 +When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
489 +
490 +[[image:image-20220628150714-4.png]]
491 +
492 +
493 +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.
494 +
495 +1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
496 +
497 +[[image:image-20220628151005-5.png]]
498 +
499 +
500 +2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
501 +
502 +[[image:image-20220628151056-6.png]]
503 +
504 +
505 +3) Within range
506 +
507 +[[image:image-20220628151143-7.png]]
508 +
509 +
479 479  == 2.5 Show data on Datacake ==
480 480  
481 481  (((
... ... @@ -560,20 +560,37 @@
560 560  
561 561  === 2.6.3 Set Device Time ===
562 562  
594 +(((
563 563  There are two ways to set device's time:
596 +)))
564 564  
598 +(((
565 565  **~1. Through LoRaWAN MAC Command (Default settings)**
600 +)))
566 566  
602 +(((
567 567  User need to set SYNCMOD=1 to enable sync time via MAC command.
604 +)))
568 568  
606 +(((
569 569  Once LHT65N Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65N. If LHT65N fails to get the time from the server, LHT65N will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
608 +)))
570 570  
610 +(((
571 571  (% style="color:red" %)Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn’t support. If server doesn’t support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.
612 +)))
572 572  
614 +(((
615 +
616 +)))
573 573  
618 +(((
574 574  **2. Manually Set Time**
620 +)))
575 575  
622 +(((
576 576  User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
624 +)))
577 577  
578 578  
579 579  
... ... @@ -740,9 +740,11 @@
740 740  (% _mstvisible="2" %)
741 741  (((
742 742  (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
791 +(((
743 743  Poll Message Flag: 1: This message is a poll message reply.
744 744  )))
745 745  )))
795 +)))
746 746  
747 747  (% _mstvisible="1" %)
748 748  * (% _mstvisible="3" %)
... ... @@ -750,17 +750,21 @@
750 750  (% _mstvisible="4" %)
751 751  (((
752 752  (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
803 +(((
753 753  Poll Message Flag is set to 1.
754 754  )))
755 755  )))
807 +)))
756 756  * (% _mstvisible="3" %)
757 757  (((
758 758  (% _mstvisible="4" %)
759 759  (((
760 760  (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
813 +(((
761 761  Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
762 762  )))
763 763  )))
817 +)))
764 764  
765 765  (% _mstvisible="1" %)
766 766  (((
... ... @@ -767,12 +767,16 @@
767 767  (% _mstvisible="2" %)
768 768  (((
769 769  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
824 +(((
770 770  
826 +)))
771 771  
772 772  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
829 +(((
773 773  For example, in US915 band, the max payload for different DR is:
774 774  )))
775 775  )))
833 +)))
776 776  
777 777  (% _mstvisible="1" %)
778 778  (((
... ... @@ -779,9 +779,11 @@
779 779  (% _mstvisible="2" %)
780 780  (((
781 781  (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
840 +(((
782 782  a) DR0: max is 11 bytes so one entry of data
783 783  )))
784 784  )))
844 +)))
785 785  
786 786  (% _mstvisible="1" %)
787 787  (((
... ... @@ -788,9 +788,11 @@
788 788  (% _mstvisible="2" %)
789 789  (((
790 790  (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
851 +(((
791 791  b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
792 792  )))
793 793  )))
855 +)))
794 794  
795 795  (% _mstvisible="1" %)
796 796  (((
... ... @@ -797,9 +797,11 @@
797 797  (% _mstvisible="2" %)
798 798  (((
799 799  (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
862 +(((
800 800  c) DR2: total payload includes 11 entries of data
801 801  )))
802 802  )))
866 +)))
803 803  
804 804  (% _mstvisible="1" %)
805 805  (((
... ... @@ -806,9 +806,11 @@
806 806  (% _mstvisible="2" %)
807 807  (((
808 808  (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
873 +(((
809 809  d) DR3: total payload includes 22 entries of data.
810 810  )))
811 811  )))
877 +)))
812 812  
813 813  (% _mstvisible="1" %)
814 814  (((
... ... @@ -815,9 +815,11 @@
815 815  (% _mstvisible="2" %)
816 816  (((
817 817  (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
884 +(((
818 818  If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
819 819  )))
820 820  )))
888 +)))
821 821  
822 822  
823 823  (% _mstvisible="1" style="text-align: left;" %)
... ... @@ -863,55 +863,86 @@
863 863  [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
864 864  
865 865  (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
934 +(((
866 866  7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
936 +)))
867 867  
868 868  (% _msthash="315237" _msttexthash="1385839" %)
939 +(((
869 869  Where the first 11 bytes is for the first entry:
941 +)))
870 870  
871 871  (% _msthash="315238" _msttexthash="274846" %)
944 +(((
872 872  7FFF089801464160065F97
946 +)))
873 873  
874 874  (% _msthash="315239" _msttexthash="617435" %)
949 +(((
875 875  Ext sensor data=0x7FFF/100=327.67
951 +)))
876 876  
877 877  (% _msthash="315240" _msttexthash="270543" %)
954 +(((
878 878  Temp=0x0898/100=22.00
956 +)))
879 879  
880 880  (% _msthash="315241" _msttexthash="211783" %)
959 +(((
881 881  Hum=0x0146/10=32.6
961 +)))
882 882  
883 883  (% _msthash="315242" _msttexthash="1569776" %)
964 +(((
884 884  poll message flag & Ext=0x41,means reply data,Ext=1
966 +)))
885 885  
886 886  (% _msthash="315243" _msttexthash="1120509" %)
969 +(((
887 887  Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
971 +)))
888 888  
889 889  
890 890  
891 891  == 2.7 Alarm Mode ==
892 892  
977 +(((
893 893  when the device is in alarm mode, it checks the built-in sensor temperature for a short time. if the temperature exceeds the preconfigured range, it sends an uplink immediately.
979 +)))
894 894  
981 +(((
895 895  (% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
983 +)))
896 896  
985 +(((
897 897  **AT COMMAND FOR ALARM MODE:**
987 +)))
898 898  
899 899  (% _mstvisible="1" class="box infomessage" %)
900 900  (((
991 +(((
901 901  **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
993 +)))
902 902  
995 +(((
903 903  **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
997 +)))
904 904  
999 +(((
905 905  **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1001 +)))
906 906  
1003 +(((
907 907  **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1005 +)))
908 908  
1007 +(((
909 909  **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
910 910  )))
1010 +)))
911 911  
912 912  
913 913  
914 -
915 915  == 2.8 LED Indicator ==
916 916  
917 917  The LHT65 has a triple color LED which for easy showing different stage .
... ... @@ -921,7 +921,7 @@
921 921  In a normal working state:
922 922  
923 923  * For each uplink, the BLUE LED or RED LED will blink once.
924 - BLUE LED when external sensor is connected.
1023 +BLUE LED when external sensor is connected.
925 925  * RED LED when external sensor is not connected
926 926  * For each success downlink, the PURPLE LED will blink once
927 927  
... ... @@ -938,8 +938,24 @@
938 938  
939 939  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
940 940  
941 -1m long breakout cable for LHT65N
1040 +**1m long breakout cable for LHT65N. Features:**
942 942  
1042 +* (((
1043 +Use for AT Command， works for both LHT52/LHT65N
1044 +)))
1045 +* (((
1046 +Update firmware for LHT65N, works for both LHT52/LHT65N
1047 +)))
1048 +* (((
1049 +Supports ADC mode to monitor external ADC
1050 +)))
1051 +* (((
1052 +Supports Interrupt mode
1053 +)))
1054 +* (((
1055 +Exposed All pins from the LHT65N Type-C connector.
1056 +)))
1057 +
943 943  [[image:image-20220619092421-3.png||height="371" width="529"]]
944 944  
945 945  
... ... @@ -961,26 +961,48 @@
961 961  
962 962  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
963 963  
1079 +(((
964 964  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1081 +)))
965 965  
966 -* AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1083 +* (((
1084 +AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1085 +)))
967 967  
968 -* LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1087 +* (((
1088 +LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1089 +)))
969 969  
1091 +(((
970 970  There are two kinds of commands to configure LHT65N, they are:
1093 +)))
971 971  
972 -* (% style="color:#4f81bd" %)**General Commands**.
1095 +* (((
1096 +(% style="color:#4f81bd" %)**General Commands**.
1097 +)))
973 973  
1099 +(((
974 974  These commands are to configure:
1101 +)))
975 975  
976 -1. General system settings like: uplink interval.
977 -1. LoRaWAN protocol & radio-related commands.
1103 +1. (((
1104 +General system settings like: uplink interval.
1105 +)))
1106 +1. (((
1107 +LoRaWAN protocol & radio-related commands.
1108 +)))
978 978  
1110 +(((
979 979  They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki: [[End Device Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
1112 +)))
980 980  
981 -* (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1114 +* (((
1115 +(% style="color:#4f81bd" %)**Commands special design for LHT65N**
1116 +)))
982 982  
1118 +(((
983 983  These commands are only valid for LHT65N, as below:
1120 +)))
984 984  
985 985  
986 986  == 4.1 Set Transmit Interval Time ==
... ... @@ -1269,16 +1269,11 @@
1269 1269  
1270 1270  (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1271 1271  
1272 -(% _msthash="506062" _msttexthash="1187732" %)
1273 -**✓ (% style="background-color:yellow" %)USB to TTL GND <~-~->GND(%%)**
1409 +* (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1410 +* (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1411 +* (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1412 +* (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1274 1274  
1275 -(% _msthash="506063" _msttexthash="1158313" %)**✓  **(% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1276 -
1277 -(% _msthash="506064" _msttexthash="1175629" %)**✓  **(% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1278 -
1279 -(% _msthash="506065" _msttexthash="1164696" %)**✓  **(% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1280 -
1281 -
1282 1282  (((
1283 1283  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.
1284 1284  )))
... ... @@ -1587,7 +1587,59 @@
1587 1587  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1588 1588  
1589 1589  
1722 +== 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1590 1590  
1724 +[[image:image-20220623110706-1.png]]
1725 +
1726 +
1727 +[[image:image-20220623112117-4.png||height="459" width="343"]]
1728 +
1729 +(((
1730 +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.
1731 +)))
1732 +
1733 +
1734 +Input password and ATZ to activate LHT65N,As shown below:
1735 +
1736 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1737 +
1738 +
1739 +== 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1740 +
1741 +[[image:image-20220623110706-1.png]]
1742 +
1743 +(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1744 +
1745 +[[image:image-20220615170542-5.png]]
1746 +
1747 +
1748 +(% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1749 +
1750 +(% _msthash="506146" _msttexthash="52173160" %)
1751 +First connect the four lines；
1752 +
1753 +(% _msthash="506146" _msttexthash="52173160" %)
1754 +[[image:image-20220623113959-5.png||height="528" width="397"]]
1755 +
1756 +(% _msthash="506146" _msttexthash="52173160" %)
1757 +Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1758 +
1759 +(% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1760 +
1761 +[[image:image-20220615171334-6.png]]
1762 +
1763 +
1764 +Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1765 +
1766 +
1767 +When this interface appears, it indicates that the download has been completed.
1768 +
1769 +[[image:image-20220620160723-8.png]]
1770 +
1771 +
1772 +Finally,restart reset device again
1773 +
1774 +
1591 1591  = 7. Order Info =
1592 1592  
1593 1593  
... ... @@ -1615,6 +1615,10 @@
1615 1615  
1616 1616  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1617 1617  
1802 +
1803 +
1804 +
1805 +
1618 1618  = 8. Packing Info =
1619 1619  
1620 1620  
... ... @@ -1628,10 +1628,18 @@
1628 1628  * Device Size:  10 x 10 x 3.5 cm
1629 1629  * Device Weight: 120.5g
1630 1630  
1819 +
1820 +
1821 +
1822 +
1631 1631  = 9. Reference material =
1632 1632  
1633 1633  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1634 1634  
1827 +
1828 +
1829 +
1830 +
1635 1635  = 10. FCC Warning =
1636 1636  
1637 1637  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
image-20220623110706-1.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Bei
Size
... ... @@ -1,0 +1,1 @@
1 +689.7 KB
Content
image-20220623110723-2.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Bei
Size
... ... @@ -1,0 +1,1 @@
1 +501.5 KB
Content
image-20220623111949-3.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Bei
Size
... ... @@ -1,0 +1,1 @@
1 +1.6 MB
Content
image-20220623112117-4.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Bei
Size
... ... @@ -1,0 +1,1 @@
1 +513.9 KB
Content
image-20220623113959-5.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Bei
Size
... ... @@ -1,0 +1,1 @@
1 +834.2 KB
Content
image-20220628150112-1.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Bei
Size
... ... @@ -1,0 +1,1 @@
1 +220.3 KB
Content
image-20220628150542-2.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Bei
Size
... ... @@ -1,0 +1,1 @@
1 +45.6 KB
Content
image-20220628150648-3.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Bei
Size
... ... @@ -1,0 +1,1 @@
1 +8.3 KB
Content
image-20220628150714-4.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Bei
Size
... ... @@ -1,0 +1,1 @@
1 +7.1 KB
Content
image-20220628151005-5.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Bei
Size
... ... @@ -1,0 +1,1 @@
1 +7.3 KB
Content
image-20220628151056-6.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Bei
Size
... ... @@ -1,0 +1,1 @@
1 +8.2 KB
Content
image-20220628151143-7.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Bei
Size
... ... @@ -1,0 +1,1 @@
1 +7.2 KB
Content