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Last modified by Xiaoling on 2023/07/18 10:12
From version 170.26
edited by Xiaoling
on 2022/06/22 11:16
Change comment: There is no comment for this version
To version 189.2
edited by Xiaoling
on 2022/07/22 10:33
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  
... ... @@ -84,26 +84,35 @@
84 84  * ±2°C accuracy from -55°C to +125°C
85 85  * Operating Range: -55 °C ~~ 125 °C
86 86  
87 -
88 -
89 -
90 90  = 2. Connect LHT65N to IoT Server =
91 91  
92 92  == 2.1 How does LHT65N work? ==
93 93  
89 +(((
94 94  LHT65N is configured as LoRaWAN OTAA Class A mode by default. Each LHT65N is shipped with a worldwide unique set of OTAA keys. To use LHT65N in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N.
91 +)))
95 95  
93 +(((
96 96  If LHT65N is under the coverage of this LoRaWAN network. LHT65N can join the LoRaWAN network automatically. After successfully joining, LHT65N will start to measure environment temperature and humidity, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.
95 +)))
97 97  
98 98  
99 99  == 2.2 How to Activate LHT65N? ==
100 100  
100 +(((
101 101  The LHT65N has two working modes:
102 +)))
102 102  
103 -* (% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
104 -* (% style="color:blue" %)**Working Mode**(%%):  In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65N will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
104 +* (((
105 +(% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
106 +)))
107 +* (((
108 +(% style="color:blue" %)**Working Mode**(%%):  In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65N will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
109 +)))
105 105  
111 +(((
106 106  The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
113 +)))
107 107  
108 108  
109 109  [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
... ... @@ -256,7 +256,6 @@
256 256  * The 7th byte (EXT #): defines the external sensor model.
257 257  * 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.)
258 258  
259 -
260 260  === 2.4.1 Decoder in TTN V3 ===
261 261  
262 262  When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N decoder in TTNv3 for friendly reading.
... ... @@ -297,6 +297,9 @@
297 297  
298 298  * Temperature:  (0xF5C6-65536)/100=-26.18℃
299 299  
306 +
307 +
308 +
300 300  === 2.4.4 Built-in Humidity ===
301 301  
302 302  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
... ... @@ -303,6 +303,9 @@
303 303  
304 304  * Humidity:    0x025C/10=60.4%
305 305  
315 +
316 +
317 +
306 306  === 2.4.5 Ext # ===
307 307  
308 308  Bytes for External Sensor:
... ... @@ -449,12 +449,16 @@
449 449  
450 450  * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
451 451  
452 -[[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
464 +(% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
465 +|(% style="width:60px" %)**Bits**|(% style="width:90px" %)**7**|(% style="width:100px" %)**6**|(% style="width:90px" %)**5**|(% style="width:100px" %)**4**|(% style="width:60px" %)**[3:0]**
466 +|(% style="width:96px" %)**Status&Ext**|(% style="width:124px" %)None-ACK Flag|(% style="width:146px" %)Poll Message FLAG|(% style="width:109px" %)Sync time OK|(% style="width:143px" %)Unix Time Request|(% style="width:106px" %)Ext: 0b(1001)
453 453  
454 -* Poll Message Flag:  1: This message is a poll message reply, 0: means this is a normal uplink.
455 -* 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.
456 -* 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)
468 +* (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
469 +* (% 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.
470 +* (% 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)
457 457  
472 +
473 +
458 458  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
459 459  
460 460  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
... ... @@ -465,8 +465,43 @@
465 465  
466 466  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
467 467  
484 +For example:
468 468  
486 +AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
469 469  
488 +
489 +Or use **downlink command A2** to set the same.
490 +
491 +The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
492 +
493 +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.
494 +
495 +[[image:image-20220628150112-1.png||height="241" width="285"]]
496 +
497 +
498 +When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
499 +
500 +[[image:image-20220628150714-4.png]]
501 +
502 +
503 +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.
504 +
505 +1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
506 +
507 +[[image:image-20220628151005-5.png]]
508 +
509 +
510 +2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
511 +
512 +[[image:image-20220628151056-6.png]]
513 +
514 +
515 +3) Within range
516 +
517 +[[image:image-20220628151143-7.png]]
518 +
519 +
520 +
470 470  == 2.5 Show data on Datacake ==
471 471  
472 472  (((
... ... @@ -526,10 +526,14 @@
526 526  
527 527  There are two methods:
528 528  
529 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
530 -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 network recover.
580 +1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
581 +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.
531 531  
583 +Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
532 532  
585 +[[image:image-20220703111700-2.png||height="381" width="1119"]]
586 +
587 +
533 533  === 2.6.2 Unix TimeStamp ===
534 534  
535 535  
... ... @@ -552,20 +552,37 @@
552 552  
553 553  === 2.6.3 Set Device Time ===
554 554  
610 +(((
555 555  There are two ways to set device's time:
612 +)))
556 556  
614 +(((
557 557  **~1. Through LoRaWAN MAC Command (Default settings)**
616 +)))
558 558  
618 +(((
559 559  User need to set SYNCMOD=1 to enable sync time via MAC command.
620 +)))
560 560  
622 +(((
561 561  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).
624 +)))
562 562  
626 +(((
563 563  (% 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.
628 +)))
564 564  
630 +(((
631 +
632 +)))
565 565  
634 +(((
566 566  **2. Manually Set Time**
636 +)))
567 567  
638 +(((
568 568  User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
640 +)))
569 569  
570 570  
571 571  
... ... @@ -732,9 +732,11 @@
732 732  (% _mstvisible="2" %)
733 733  (((
734 734  (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
807 +(((
735 735  Poll Message Flag: 1: This message is a poll message reply.
736 736  )))
737 737  )))
811 +)))
738 738  
739 739  (% _mstvisible="1" %)
740 740  * (% _mstvisible="3" %)
... ... @@ -742,17 +742,21 @@
742 742  (% _mstvisible="4" %)
743 743  (((
744 744  (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
819 +(((
745 745  Poll Message Flag is set to 1.
746 746  )))
747 747  )))
823 +)))
748 748  * (% _mstvisible="3" %)
749 749  (((
750 750  (% _mstvisible="4" %)
751 751  (((
752 752  (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
829 +(((
753 753  Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
754 754  )))
755 755  )))
833 +)))
756 756  
757 757  (% _mstvisible="1" %)
758 758  (((
... ... @@ -759,12 +759,16 @@
759 759  (% _mstvisible="2" %)
760 760  (((
761 761  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
840 +(((
762 762  
842 +)))
763 763  
764 764  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
845 +(((
765 765  For example, in US915 band, the max payload for different DR is:
766 766  )))
767 767  )))
849 +)))
768 768  
769 769  (% _mstvisible="1" %)
770 770  (((
... ... @@ -771,9 +771,11 @@
771 771  (% _mstvisible="2" %)
772 772  (((
773 773  (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
856 +(((
774 774  a) DR0: max is 11 bytes so one entry of data
775 775  )))
776 776  )))
860 +)))
777 777  
778 778  (% _mstvisible="1" %)
779 779  (((
... ... @@ -780,9 +780,11 @@
780 780  (% _mstvisible="2" %)
781 781  (((
782 782  (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
867 +(((
783 783  b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
784 784  )))
785 785  )))
871 +)))
786 786  
787 787  (% _mstvisible="1" %)
788 788  (((
... ... @@ -789,9 +789,11 @@
789 789  (% _mstvisible="2" %)
790 790  (((
791 791  (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
878 +(((
792 792  c) DR2: total payload includes 11 entries of data
793 793  )))
794 794  )))
882 +)))
795 795  
796 796  (% _mstvisible="1" %)
797 797  (((
... ... @@ -798,9 +798,11 @@
798 798  (% _mstvisible="2" %)
799 799  (((
800 800  (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
889 +(((
801 801  d) DR3: total payload includes 22 entries of data.
802 802  )))
803 803  )))
893 +)))
804 804  
805 805  (% _mstvisible="1" %)
806 806  (((
... ... @@ -807,9 +807,11 @@
807 807  (% _mstvisible="2" %)
808 808  (((
809 809  (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
900 +(((
810 810  If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
811 811  )))
812 812  )))
904 +)))
813 813  
814 814  
815 815  (% _mstvisible="1" style="text-align: left;" %)
... ... @@ -855,55 +855,99 @@
855 855  [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
856 856  
857 857  (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
950 +(((
858 858  7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
952 +)))
859 859  
860 860  (% _msthash="315237" _msttexthash="1385839" %)
955 +(((
861 861  Where the first 11 bytes is for the first entry:
957 +)))
862 862  
863 863  (% _msthash="315238" _msttexthash="274846" %)
960 +(((
864 864  7FFF089801464160065F97
962 +)))
865 865  
866 866  (% _msthash="315239" _msttexthash="617435" %)
965 +(((
867 867  Ext sensor data=0x7FFF/100=327.67
967 +)))
868 868  
869 869  (% _msthash="315240" _msttexthash="270543" %)
970 +(((
870 870  Temp=0x0898/100=22.00
972 +)))
871 871  
872 872  (% _msthash="315241" _msttexthash="211783" %)
975 +(((
873 873  Hum=0x0146/10=32.6
977 +)))
874 874  
875 875  (% _msthash="315242" _msttexthash="1569776" %)
980 +(((
876 876  poll message flag & Ext=0x41,means reply data,Ext=1
982 +)))
877 877  
878 878  (% _msthash="315243" _msttexthash="1120509" %)
985 +(((
879 879  Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
987 +)))
880 880  
881 881  
882 882  
883 883  == 2.7 Alarm Mode ==
884 884  
993 +(((
885 885  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.
995 +)))
886 886  
997 +(((
887 887  (% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
999 +)))
888 888  
1001 +(((
889 889  **AT COMMAND FOR ALARM MODE:**
1003 +)))
890 890  
891 891  (% _mstvisible="1" class="box infomessage" %)
892 892  (((
1007 +(((
893 893  **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1009 +)))
894 894  
1011 +(((
895 895  **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1013 +)))
896 896  
1015 +(((
897 897  **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1017 +)))
898 898  
1019 +(((
899 899  **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1021 +)))
900 900  
1023 +(((
901 901  **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
902 902  )))
1026 +)))
903 903  
1028 +(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
904 904  
1030 +Total bytes: 8 bytes
905 905  
1032 +**Example:**AA0100010001003C
906 906  
1034 +WMOD=01
1035 +
1036 +CITEMP=0001
1037 +
1038 +TEMPlow=0001
1039 +
1040 +TEMPhigh=003C
1041 +
1042 +
907 907  == 2.8 LED Indicator ==
908 908  
909 909  The LHT65 has a triple color LED which for easy showing different stage .
... ... @@ -913,11 +913,10 @@
913 913  In a normal working state:
914 914  
915 915  * For each uplink, the BLUE LED or RED LED will blink once.
916 - BLUE LED when external sensor is connected.
1052 +BLUE LED when external sensor is connected.
917 917  * RED LED when external sensor is not connected
918 918  * For each success downlink, the PURPLE LED will blink once
919 919  
920 -
921 921  == 2.9 installation ==
922 922  
923 923  (% _mstvisible="1" %)
... ... @@ -931,8 +931,24 @@
931 931  
932 932  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
933 933  
934 -1m long breakout cable for LHT65N
1069 +**1m long breakout cable for LHT65N. Features:**
935 935  
1071 +* (((
1072 +Use for AT Command， works for both LHT52/LHT65N
1073 +)))
1074 +* (((
1075 +Update firmware for LHT65N, works for both LHT52/LHT65N
1076 +)))
1077 +* (((
1078 +Supports ADC mode to monitor external ADC
1079 +)))
1080 +* (((
1081 +Supports Interrupt mode
1082 +)))
1083 +* (((
1084 +Exposed All pins from the LHT65N Type-C connector.
1085 +)))
1086 +
936 936  [[image:image-20220619092421-3.png||height="371" width="529"]]
937 937  
938 938  
... ... @@ -952,29 +952,50 @@
952 952  * Operating Range: -40 ~~ 125 °C
953 953  * Working voltage 2.35v ~~ 5v
954 954  
955 -
956 956  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
957 957  
1108 +(((
958 958  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1110 +)))
959 959  
960 -* AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1112 +* (((
1113 +AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1114 +)))
961 961  
962 -* LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1116 +* (((
1117 +LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1118 +)))
963 963  
1120 +(((
964 964  There are two kinds of commands to configure LHT65N, they are:
1122 +)))
965 965  
966 -* (% style="color:#4f81bd" %)**General Commands**.
1124 +* (((
1125 +(% style="color:#4f81bd" %)**General Commands**.
1126 +)))
967 967  
1128 +(((
968 968  These commands are to configure:
1130 +)))
969 969  
970 -1. General system settings like: uplink interval.
971 -1. LoRaWAN protocol & radio-related commands.
1132 +1. (((
1133 +General system settings like: uplink interval.
1134 +)))
1135 +1. (((
1136 +LoRaWAN protocol & radio-related commands.
1137 +)))
972 972  
1139 +(((
973 973  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]]
1141 +)))
974 974  
975 -* (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1143 +* (((
1144 +(% style="color:#4f81bd" %)**Commands special design for LHT65N**
1145 +)))
976 976  
1147 +(((
977 977  These commands are only valid for LHT65N, as below:
1149 +)))
978 978  
979 979  
980 980  == 4.1 Set Transmit Interval Time ==
... ... @@ -1090,7 +1090,6 @@
1090 1090  
1091 1091  * There is no downlink command to set to Sleep mode.
1092 1092  
1093 -
1094 1094  == 4.7 Set system time ==
1095 1095  
1096 1096  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
... ... @@ -1187,7 +1187,6 @@
1187 1187  
1188 1188  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1189 1189  
1190 -
1191 1191  == 4.13 Auto Send None-ACK messages ==
1192 1192  
1193 1193  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
... ... @@ -1265,16 +1265,11 @@
1265 1265  
1266 1266  (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1267 1267  
1268 -(% _msthash="506062" _msttexthash="1187732" %)
1269 -**✓ (% style="background-color:yellow" %)USB to TTL GND <~-~->GND(%%)**
1438 +* (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1439 +* (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1440 +* (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1441 +* (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1270 1270  
1271 -(% _msthash="506063" _msttexthash="1158313" %)**✓  **(% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1272 -
1273 -(% _msthash="506064" _msttexthash="1175629" %)**✓  **(% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1274 -
1275 -(% _msthash="506065" _msttexthash="1164696" %)**✓  **(% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1276 -
1277 -
1278 1278  (((
1279 1279  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.
1280 1280  )))
... ... @@ -1583,7 +1583,59 @@
1583 1583  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1584 1584  
1585 1585  
1751 +== 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1586 1586  
1753 +[[image:image-20220623110706-1.png]]
1754 +
1755 +
1756 +[[image:image-20220623112117-4.png||height="459" width="343"]]
1757 +
1758 +(((
1759 +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.
1760 +)))
1761 +
1762 +
1763 +Input password and ATZ to activate LHT65N,As shown below:
1764 +
1765 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1766 +
1767 +
1768 +== 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1769 +
1770 +[[image:image-20220623110706-1.png]]
1771 +
1772 +(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1773 +
1774 +[[image:image-20220615170542-5.png]]
1775 +
1776 +
1777 +(% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1778 +
1779 +(% _msthash="506146" _msttexthash="52173160" %)
1780 +First connect the four lines；
1781 +
1782 +(% _msthash="506146" _msttexthash="52173160" %)
1783 +[[image:image-20220623113959-5.png||height="528" width="397"]]
1784 +
1785 +(% _msthash="506146" _msttexthash="52173160" %)
1786 +Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1787 +
1788 +(% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1789 +
1790 +[[image:image-20220615171334-6.png]]
1791 +
1792 +
1793 +Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1794 +
1795 +
1796 +When this interface appears, it indicates that the download has been completed.
1797 +
1798 +[[image:image-20220620160723-8.png]]
1799 +
1800 +
1801 +Finally,restart reset device again
1802 +
1803 +
1587 1587  = 7. Order Info =
1588 1588  
1589 1589  
... ... @@ -1611,7 +1611,6 @@
1611 1611  
1612 1612  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1613 1613  
1614 -
1615 1615  = 8. Packing Info =
1616 1616  
1617 1617  
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