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Last modified by Xiaoling on 2023/07/18 10:12
From version 170.28
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

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Content
... ... @@ -58,8 +58,6 @@
58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature
60 60  
61 -
62 -
63 63  == 1.3 Specification ==
64 64  
65 65  
... ... @@ -84,8 +84,6 @@
84 84  * ±2°C accuracy from -55°C to +125°C
85 85  * Operating Range: -55 °C ~~ 125 °C
86 86  
87 -
88 -
89 89  = 2. Connect LHT65N to IoT Server =
90 90  
91 91  == 2.1 How does LHT65N work? ==
... ... @@ -475,8 +475,42 @@
475 475  
476 476  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
477 477  
474 +For example:
478 478  
476 +AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
479 479  
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 +
480 480  == 2.5 Show data on Datacake ==
481 481  
482 482  (((
... ... @@ -561,20 +561,37 @@
561 561  
562 562  === 2.6.3 Set Device Time ===
563 563  
594 +(((
564 564  There are two ways to set device's time:
596 +)))
565 565  
598 +(((
566 566  **~1. Through LoRaWAN MAC Command (Default settings)**
600 +)))
567 567  
602 +(((
568 568  User need to set SYNCMOD=1 to enable sync time via MAC command.
604 +)))
569 569  
606 +(((
570 570  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 +)))
571 571  
610 +(((
572 572  (% 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 +)))
573 573  
614 +(((
615 +
616 +)))
574 574  
618 +(((
575 575  **2. Manually Set Time**
620 +)))
576 576  
622 +(((
577 577  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 +)))
578 578  
579 579  
580 580  
... ... @@ -741,9 +741,11 @@
741 741  (% _mstvisible="2" %)
742 742  (((
743 743  (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
791 +(((
744 744  Poll Message Flag: 1: This message is a poll message reply.
745 745  )))
746 746  )))
795 +)))
747 747  
748 748  (% _mstvisible="1" %)
749 749  * (% _mstvisible="3" %)
... ... @@ -751,17 +751,21 @@
751 751  (% _mstvisible="4" %)
752 752  (((
753 753  (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
803 +(((
754 754  Poll Message Flag is set to 1.
755 755  )))
756 756  )))
807 +)))
757 757  * (% _mstvisible="3" %)
758 758  (((
759 759  (% _mstvisible="4" %)
760 760  (((
761 761  (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
813 +(((
762 762  Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
763 763  )))
764 764  )))
817 +)))
765 765  
766 766  (% _mstvisible="1" %)
767 767  (((
... ... @@ -768,12 +768,16 @@
768 768  (% _mstvisible="2" %)
769 769  (((
770 770  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
824 +(((
771 771  
826 +)))
772 772  
773 773  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
829 +(((
774 774  For example, in US915 band, the max payload for different DR is:
775 775  )))
776 776  )))
833 +)))
777 777  
778 778  (% _mstvisible="1" %)
779 779  (((
... ... @@ -780,9 +780,11 @@
780 780  (% _mstvisible="2" %)
781 781  (((
782 782  (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
840 +(((
783 783  a) DR0: max is 11 bytes so one entry of data
784 784  )))
785 785  )))
844 +)))
786 786  
787 787  (% _mstvisible="1" %)
788 788  (((
... ... @@ -789,9 +789,11 @@
789 789  (% _mstvisible="2" %)
790 790  (((
791 791  (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
851 +(((
792 792  b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
793 793  )))
794 794  )))
855 +)))
795 795  
796 796  (% _mstvisible="1" %)
797 797  (((
... ... @@ -798,9 +798,11 @@
798 798  (% _mstvisible="2" %)
799 799  (((
800 800  (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
862 +(((
801 801  c) DR2: total payload includes 11 entries of data
802 802  )))
803 803  )))
866 +)))
804 804  
805 805  (% _mstvisible="1" %)
806 806  (((
... ... @@ -807,9 +807,11 @@
807 807  (% _mstvisible="2" %)
808 808  (((
809 809  (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
873 +(((
810 810  d) DR3: total payload includes 22 entries of data.
811 811  )))
812 812  )))
877 +)))
813 813  
814 814  (% _mstvisible="1" %)
815 815  (((
... ... @@ -816,9 +816,11 @@
816 816  (% _mstvisible="2" %)
817 817  (((
818 818  (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
884 +(((
819 819  If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
820 820  )))
821 821  )))
888 +)))
822 822  
823 823  
824 824  (% _mstvisible="1" style="text-align: left;" %)
... ... @@ -864,55 +864,86 @@
864 864  [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
865 865  
866 866  (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
934 +(((
867 867  7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
936 +)))
868 868  
869 869  (% _msthash="315237" _msttexthash="1385839" %)
939 +(((
870 870  Where the first 11 bytes is for the first entry:
941 +)))
871 871  
872 872  (% _msthash="315238" _msttexthash="274846" %)
944 +(((
873 873  7FFF089801464160065F97
946 +)))
874 874  
875 875  (% _msthash="315239" _msttexthash="617435" %)
949 +(((
876 876  Ext sensor data=0x7FFF/100=327.67
951 +)))
877 877  
878 878  (% _msthash="315240" _msttexthash="270543" %)
954 +(((
879 879  Temp=0x0898/100=22.00
956 +)))
880 880  
881 881  (% _msthash="315241" _msttexthash="211783" %)
959 +(((
882 882  Hum=0x0146/10=32.6
961 +)))
883 883  
884 884  (% _msthash="315242" _msttexthash="1569776" %)
964 +(((
885 885  poll message flag & Ext=0x41,means reply data,Ext=1
966 +)))
886 886  
887 887  (% _msthash="315243" _msttexthash="1120509" %)
969 +(((
888 888  Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
971 +)))
889 889  
890 890  
891 891  
892 892  == 2.7 Alarm Mode ==
893 893  
977 +(((
894 894  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 +)))
895 895  
981 +(((
896 896  (% 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 +)))
897 897  
985 +(((
898 898  **AT COMMAND FOR ALARM MODE:**
987 +)))
899 899  
900 900  (% _mstvisible="1" class="box infomessage" %)
901 901  (((
991 +(((
902 902  **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
993 +)))
903 903  
995 +(((
904 904  **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
997 +)))
905 905  
999 +(((
906 906  **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1001 +)))
907 907  
1003 +(((
908 908  **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1005 +)))
909 909  
1007 +(((
910 910  **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
911 911  )))
1010 +)))
912 912  
913 913  
914 914  
915 -
916 916  == 2.8 LED Indicator ==
917 917  
918 918  The LHT65 has a triple color LED which for easy showing different stage .
... ... @@ -922,7 +922,7 @@
922 922  In a normal working state:
923 923  
924 924  * For each uplink, the BLUE LED or RED LED will blink once.
925 - BLUE LED when external sensor is connected.
1023 +BLUE LED when external sensor is connected.
926 926  * RED LED when external sensor is not connected
927 927  * For each success downlink, the PURPLE LED will blink once
928 928  
... ... @@ -939,8 +939,24 @@
939 939  
940 940  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
941 941  
942 -1m long breakout cable for LHT65N
1040 +**1m long breakout cable for LHT65N. Features:**
943 943  
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 +
944 944  [[image:image-20220619092421-3.png||height="371" width="529"]]
945 945  
946 946  
... ... @@ -962,26 +962,48 @@
962 962  
963 963  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
964 964  
1079 +(((
965 965  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1081 +)))
966 966  
967 -* AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1083 +* (((
1084 +AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1085 +)))
968 968  
969 -* 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 +)))
970 970  
1091 +(((
971 971  There are two kinds of commands to configure LHT65N, they are:
1093 +)))
972 972  
973 -* (% style="color:#4f81bd" %)**General Commands**.
1095 +* (((
1096 +(% style="color:#4f81bd" %)**General Commands**.
1097 +)))
974 974  
1099 +(((
975 975  These commands are to configure:
1101 +)))
976 976  
977 -1. General system settings like: uplink interval.
978 -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 +)))
979 979  
1110 +(((
980 980  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 +)))
981 981  
982 -* (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1114 +* (((
1115 +(% style="color:#4f81bd" %)**Commands special design for LHT65N**
1116 +)))
983 983  
1118 +(((
984 984  These commands are only valid for LHT65N, as below:
1120 +)))
985 985  
986 986  
987 987  == 4.1 Set Transmit Interval Time ==
... ... @@ -1270,16 +1270,11 @@
1270 1270  
1271 1271  (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1272 1272  
1273 -(% _msthash="506062" _msttexthash="1187732" %)
1274 -**✓ (% 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-**
1275 1275  
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 -
1283 1283  (((
1284 1284  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.
1285 1285  )))
... ... @@ -1588,7 +1588,59 @@
1588 1588  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1589 1589  
1590 1590  
1722 +== 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1591 1591  
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 +
1592 1592  = 7. Order Info =
1593 1593  
1594 1594  
... ... @@ -1616,6 +1616,10 @@
1616 1616  
1617 1617  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1618 1618  
1802 +
1803 +
1804 +
1805 +
1619 1619  = 8. Packing Info =
1620 1620  
1621 1621  
... ... @@ -1629,10 +1629,18 @@
1629 1629  * Device Size:  10 x 10 x 3.5 cm
1630 1630  * Device Weight: 120.5g
1631 1631  
1819 +
1820 +
1821 +
1822 +
1632 1632  = 9. Reference material =
1633 1633  
1634 1634  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1635 1635  
1827 +
1828 +
1829 +
1830 +
1636 1636  = 10. FCC Warning =
1637 1637  
1638 1638  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
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