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Last modified by Xiaoling on 2023/07/18 10:12
From version 185.1
edited by Bei Jinggeng
on 2022/06/28 15:12
Change comment: There is no comment for this version
To version 170.28
edited by Xiaoling
on 2022/06/22 11:17
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
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1 -XWiki.Bei
1 +XWiki.Xiaoling
Content
... ... @@ -59,6 +59,7 @@
59 59  * Datalog feature
60 60  
61 61  
62 +
62 62  == 1.3 Specification ==
63 63  
64 64  
... ... @@ -84,6 +84,7 @@
84 84  * Operating Range: -55 °C ~~ 125 °C
85 85  
86 86  
88 +
87 87  = 2. Connect LHT65N to IoT Server =
88 88  
89 89  == 2.1 How does LHT65N work? ==
... ... @@ -473,42 +473,8 @@
473 473  
474 474  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
475 475  
476 -For example:
477 477  
478 -AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
479 479  
480 -
481 -Or use **downlink command A2** to set the same.
482 -
483 -The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
484 -
485 -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.
486 -
487 -[[image:image-20220628150112-1.png||height="241" width="285"]]
488 -
489 -
490 -When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
491 -
492 -[[image:image-20220628150714-4.png]]
493 -
494 -
495 -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.
496 -
497 -1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
498 -
499 -[[image:image-20220628151005-5.png]]
500 -
501 -
502 -2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
503 -
504 -[[image:image-20220628151056-6.png]]
505 -
506 -
507 -3) Within range
508 -
509 -[[image:image-20220628151143-7.png]]
510 -
511 -
512 512  == 2.5 Show data on Datacake ==
513 513  
514 514  (((
... ... @@ -593,37 +593,20 @@
593 593  
594 594  === 2.6.3 Set Device Time ===
595 595  
596 -(((
597 597  There are two ways to set device's time:
598 -)))
599 599  
600 -(((
601 601  **~1. Through LoRaWAN MAC Command (Default settings)**
602 -)))
603 603  
604 -(((
605 605  User need to set SYNCMOD=1 to enable sync time via MAC command.
606 -)))
607 607  
608 -(((
609 609  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).
610 -)))
611 611  
612 -(((
613 613  (% 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.
614 -)))
615 615  
616 -(((
617 -
618 -)))
619 619  
620 -(((
621 621  **2. Manually Set Time**
622 -)))
623 623  
624 -(((
625 625  User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
626 -)))
627 627  
628 628  
629 629  
... ... @@ -790,11 +790,9 @@
790 790  (% _mstvisible="2" %)
791 791  (((
792 792  (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
793 -(((
794 794  Poll Message Flag: 1: This message is a poll message reply.
795 795  )))
796 796  )))
797 -)))
798 798  
799 799  (% _mstvisible="1" %)
800 800  * (% _mstvisible="3" %)
... ... @@ -802,21 +802,17 @@
802 802  (% _mstvisible="4" %)
803 803  (((
804 804  (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
805 -(((
806 806  Poll Message Flag is set to 1.
807 807  )))
808 808  )))
809 -)))
810 810  * (% _mstvisible="3" %)
811 811  (((
812 812  (% _mstvisible="4" %)
813 813  (((
814 814  (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
815 -(((
816 816  Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
817 817  )))
818 818  )))
819 -)))
820 820  
821 821  (% _mstvisible="1" %)
822 822  (((
... ... @@ -823,16 +823,12 @@
823 823  (% _mstvisible="2" %)
824 824  (((
825 825  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
826 -(((
827 827  
828 -)))
829 829  
830 830  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
831 -(((
832 832  For example, in US915 band, the max payload for different DR is:
833 833  )))
834 834  )))
835 -)))
836 836  
837 837  (% _mstvisible="1" %)
838 838  (((
... ... @@ -839,11 +839,9 @@
839 839  (% _mstvisible="2" %)
840 840  (((
841 841  (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
842 -(((
843 843  a) DR0: max is 11 bytes so one entry of data
844 844  )))
845 845  )))
846 -)))
847 847  
848 848  (% _mstvisible="1" %)
849 849  (((
... ... @@ -850,11 +850,9 @@
850 850  (% _mstvisible="2" %)
851 851  (((
852 852  (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
853 -(((
854 854  b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
855 855  )))
856 856  )))
857 -)))
858 858  
859 859  (% _mstvisible="1" %)
860 860  (((
... ... @@ -861,11 +861,9 @@
861 861  (% _mstvisible="2" %)
862 862  (((
863 863  (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
864 -(((
865 865  c) DR2: total payload includes 11 entries of data
866 866  )))
867 867  )))
868 -)))
869 869  
870 870  (% _mstvisible="1" %)
871 871  (((
... ... @@ -872,11 +872,9 @@
872 872  (% _mstvisible="2" %)
873 873  (((
874 874  (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
875 -(((
876 876  d) DR3: total payload includes 22 entries of data.
877 877  )))
878 878  )))
879 -)))
880 880  
881 881  (% _mstvisible="1" %)
882 882  (((
... ... @@ -883,11 +883,9 @@
883 883  (% _mstvisible="2" %)
884 884  (((
885 885  (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
886 -(((
887 887  If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
888 888  )))
889 889  )))
890 -)))
891 891  
892 892  
893 893  (% _mstvisible="1" style="text-align: left;" %)
... ... @@ -933,86 +933,55 @@
933 933  [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
934 934  
935 935  (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
936 -(((
937 937  7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
938 -)))
939 939  
940 940  (% _msthash="315237" _msttexthash="1385839" %)
941 -(((
942 942  Where the first 11 bytes is for the first entry:
943 -)))
944 944  
945 945  (% _msthash="315238" _msttexthash="274846" %)
946 -(((
947 947  7FFF089801464160065F97
948 -)))
949 949  
950 950  (% _msthash="315239" _msttexthash="617435" %)
951 -(((
952 952  Ext sensor data=0x7FFF/100=327.67
953 -)))
954 954  
955 955  (% _msthash="315240" _msttexthash="270543" %)
956 -(((
957 957  Temp=0x0898/100=22.00
958 -)))
959 959  
960 960  (% _msthash="315241" _msttexthash="211783" %)
961 -(((
962 962  Hum=0x0146/10=32.6
963 -)))
964 964  
965 965  (% _msthash="315242" _msttexthash="1569776" %)
966 -(((
967 967  poll message flag & Ext=0x41,means reply data,Ext=1
968 -)))
969 969  
970 970  (% _msthash="315243" _msttexthash="1120509" %)
971 -(((
972 972  Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
973 -)))
974 974  
975 975  
976 976  
977 977  == 2.7 Alarm Mode ==
978 978  
979 -(((
980 980  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.
981 -)))
982 982  
983 -(((
984 984  (% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
985 -)))
986 986  
987 -(((
988 988  **AT COMMAND FOR ALARM MODE:**
989 -)))
990 990  
991 991  (% _mstvisible="1" class="box infomessage" %)
992 992  (((
993 -(((
994 994  **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
995 -)))
996 996  
997 -(((
998 998  **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
999 -)))
1000 1000  
1001 -(((
1002 1002  **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1003 -)))
1004 1004  
1005 -(((
1006 1006  **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1007 -)))
1008 1008  
1009 -(((
1010 1010  **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1011 1011  )))
1012 -)))
1013 1013  
1014 1014  
1015 1015  
915 +
1016 1016  == 2.8 LED Indicator ==
1017 1017  
1018 1018  The LHT65 has a triple color LED which for easy showing different stage .
... ... @@ -1022,7 +1022,7 @@
1022 1022  In a normal working state:
1023 1023  
1024 1024  * For each uplink, the BLUE LED or RED LED will blink once.
1025 -BLUE LED when external sensor is connected.
925 + BLUE LED when external sensor is connected.
1026 1026  * RED LED when external sensor is not connected
1027 1027  * For each success downlink, the PURPLE LED will blink once
1028 1028  
... ... @@ -1039,24 +1039,8 @@
1039 1039  
1040 1040  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1041 1041  
1042 -**1m long breakout cable for LHT65N. Features:**
942 +1m long breakout cable for LHT65N
1043 1043  
1044 -* (((
1045 -Use for AT Command， works for both LHT52/LHT65N
1046 -)))
1047 -* (((
1048 -Update firmware for LHT65N, works for both LHT52/LHT65N
1049 -)))
1050 -* (((
1051 -Supports ADC mode to monitor external ADC
1052 -)))
1053 -* (((
1054 -Supports Interrupt mode
1055 -)))
1056 -* (((
1057 -Exposed All pins from the LHT65N Type-C connector.
1058 -)))
1059 -
1060 1060  [[image:image-20220619092421-3.png||height="371" width="529"]]
1061 1061  
1062 1062  
... ... @@ -1078,48 +1078,26 @@
1078 1078  
1079 1079  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1080 1080  
1081 -(((
1082 1082  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1083 -)))
1084 1084  
1085 -* (((
1086 -AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1087 -)))
967 +* AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1088 1088  
1089 -* (((
1090 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1091 -)))
969 +* LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1092 1092  
1093 -(((
1094 1094  There are two kinds of commands to configure LHT65N, they are:
1095 -)))
1096 1096  
1097 -* (((
1098 -(% style="color:#4f81bd" %)**General Commands**.
1099 -)))
973 +* (% style="color:#4f81bd" %)**General Commands**.
1100 1100  
1101 -(((
1102 1102  These commands are to configure:
1103 -)))
1104 1104  
1105 -1. (((
1106 -General system settings like: uplink interval.
1107 -)))
1108 -1. (((
1109 -LoRaWAN protocol & radio-related commands.
1110 -)))
977 +1. General system settings like: uplink interval.
978 +1. LoRaWAN protocol & radio-related commands.
1111 1111  
1112 -(((
1113 1113  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]]
1114 -)))
1115 1115  
1116 -* (((
1117 -(% style="color:#4f81bd" %)**Commands special design for LHT65N**
1118 -)))
982 +* (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1119 1119  
1120 -(((
1121 1121  These commands are only valid for LHT65N, as below:
1122 -)))
1123 1123  
1124 1124  
1125 1125  == 4.1 Set Transmit Interval Time ==
... ... @@ -1408,11 +1408,16 @@
1408 1408  
1409 1409  (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1410 1410  
1411 -* (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1412 -* (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1413 -* (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1414 -* (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1273 +(% _msthash="506062" _msttexthash="1187732" %)
1274 +**✓ (% style="background-color:yellow" %)USB to TTL GND <~-~->GND(%%)**
1415 1415  
1276 +(% _msthash="506063" _msttexthash="1158313" %)**✓  **(% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1277 +
1278 +(% _msthash="506064" _msttexthash="1175629" %)**✓  **(% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1279 +
1280 +(% _msthash="506065" _msttexthash="1164696" %)**✓  **(% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1281 +
1282 +
1416 1416  (((
1417 1417  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.
1418 1418  )))
... ... @@ -1721,59 +1721,7 @@
1721 1721  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1722 1722  
1723 1723  
1724 -== 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1725 1725  
1726 -[[image:image-20220623110706-1.png]]
1727 -
1728 -
1729 -[[image:image-20220623112117-4.png||height="459" width="343"]]
1730 -
1731 -(((
1732 -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.
1733 -)))
1734 -
1735 -
1736 -Input password and ATZ to activate LHT65N,As shown below:
1737 -
1738 -[[image:image-20220615154519-3.png||height="672" width="807"]]
1739 -
1740 -
1741 -== 6.6 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1742 -
1743 -[[image:image-20220623110706-1.png]]
1744 -
1745 -(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1746 -
1747 -[[image:image-20220615170542-5.png]]
1748 -
1749 -
1750 -(% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1751 -
1752 -(% _msthash="506146" _msttexthash="52173160" %)
1753 -First connect the four lines；
1754 -
1755 -(% _msthash="506146" _msttexthash="52173160" %)
1756 -[[image:image-20220623113959-5.png||height="528" width="397"]]
1757 -
1758 -(% _msthash="506146" _msttexthash="52173160" %)
1759 -Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1760 -
1761 -(% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1762 -
1763 -[[image:image-20220615171334-6.png]]
1764 -
1765 -
1766 -Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1767 -
1768 -
1769 -When this interface appears, it indicates that the download has been completed.
1770 -
1771 -[[image:image-20220620160723-8.png]]
1772 -
1773 -
1774 -Finally,restart reset device again
1775 -
1776 -
1777 1777  = 7. Order Info =
1778 1778  
1779 1779  
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