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Last modified by Xiaoling on 2023/07/18 10:12
From version 170.25
edited by Xiaoling
on 2022/06/22 11:16
Change comment: There is no comment for this version
To version 189.3
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
... ... @@ -58,9 +58,6 @@
58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature
60 60  
61 -
62 -
63 -
64 64  == 1.3 Specification ==
65 65  
66 66  
... ... @@ -89,19 +89,31 @@
89 89  
90 90  == 2.1 How does LHT65N work? ==
91 91  
89 +(((
92 92  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 +)))
93 93  
93 +(((
94 94  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 +)))
95 95  
96 96  
97 97  == 2.2 How to Activate LHT65N? ==
98 98  
100 +(((
99 99  The LHT65N has two working modes:
102 +)))
100 100  
101 -* (% 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.
102 -* (% 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 +)))
103 103  
111 +(((
104 104  The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
113 +)))
105 105  
106 106  
107 107  [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
... ... @@ -256,6 +256,7 @@
256 256  
257 257  
258 258  
268 +
259 259  === 2.4.1 Decoder in TTN V3 ===
260 260  
261 261  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.
... ... @@ -287,6 +287,8 @@
287 287  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
288 288  
289 289  
300 +
301 +
290 290  === 2.4.3 Built-in Temperature ===
291 291  
292 292  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
... ... @@ -297,6 +297,9 @@
297 297  
298 298  * Temperature:  (0xF5C6-65536)/100=-26.18℃
299 299  
312 +
313 +
314 +
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  
321 +
322 +
323 +
306 306  === 2.4.5 Ext # ===
307 307  
308 308  Bytes for External Sensor:
... ... @@ -449,13 +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"]]
470 +(% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
471 +|(% 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]**
472 +|(% 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)
474 +* (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
475 +* (% 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.
476 +* (% 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  
458 458  
479 +
459 459  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
460 460  
461 461  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
... ... @@ -466,8 +466,43 @@
466 466  
467 467  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
468 468  
490 +For example:
469 469  
492 +AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
470 470  
494 +
495 +Or use **downlink command A2** to set the same.
496 +
497 +The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
498 +
499 +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.
500 +
501 +[[image:image-20220628150112-1.png||height="241" width="285"]]
502 +
503 +
504 +When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
505 +
506 +[[image:image-20220628150714-4.png]]
507 +
508 +
509 +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.
510 +
511 +1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
512 +
513 +[[image:image-20220628151005-5.png]]
514 +
515 +
516 +2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
517 +
518 +[[image:image-20220628151056-6.png]]
519 +
520 +
521 +3) Within range
522 +
523 +[[image:image-20220628151143-7.png]]
524 +
525 +
526 +
471 471  == 2.5 Show data on Datacake ==
472 472  
473 473  (((
... ... @@ -527,11 +527,14 @@
527 527  
528 528  There are two methods:
529 529  
530 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
531 -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.
586 +1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
587 +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.
532 532  
589 +Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
533 533  
591 +[[image:image-20220703111700-2.png||height="381" width="1119"]]
534 534  
593 +
535 535  === 2.6.2 Unix TimeStamp ===
536 536  
537 537  
... ... @@ -554,20 +554,37 @@
554 554  
555 555  === 2.6.3 Set Device Time ===
556 556  
616 +(((
557 557  There are two ways to set device's time:
618 +)))
558 558  
620 +(((
559 559  **~1. Through LoRaWAN MAC Command (Default settings)**
622 +)))
560 560  
624 +(((
561 561  User need to set SYNCMOD=1 to enable sync time via MAC command.
626 +)))
562 562  
628 +(((
563 563  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).
630 +)))
564 564  
632 +(((
565 565  (% 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.
634 +)))
566 566  
636 +(((
637 +
638 +)))
567 567  
640 +(((
568 568  **2. Manually Set Time**
642 +)))
569 569  
644 +(((
570 570  User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
646 +)))
571 571  
572 572  
573 573  
... ... @@ -734,9 +734,11 @@
734 734  (% _mstvisible="2" %)
735 735  (((
736 736  (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
813 +(((
737 737  Poll Message Flag: 1: This message is a poll message reply.
738 738  )))
739 739  )))
817 +)))
740 740  
741 741  (% _mstvisible="1" %)
742 742  * (% _mstvisible="3" %)
... ... @@ -744,17 +744,21 @@
744 744  (% _mstvisible="4" %)
745 745  (((
746 746  (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
825 +(((
747 747  Poll Message Flag is set to 1.
748 748  )))
749 749  )))
829 +)))
750 750  * (% _mstvisible="3" %)
751 751  (((
752 752  (% _mstvisible="4" %)
753 753  (((
754 754  (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
835 +(((
755 755  Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
756 756  )))
757 757  )))
839 +)))
758 758  
759 759  (% _mstvisible="1" %)
760 760  (((
... ... @@ -761,12 +761,16 @@
761 761  (% _mstvisible="2" %)
762 762  (((
763 763  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
846 +(((
764 764  
848 +)))
765 765  
766 766  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
851 +(((
767 767  For example, in US915 band, the max payload for different DR is:
768 768  )))
769 769  )))
855 +)))
770 770  
771 771  (% _mstvisible="1" %)
772 772  (((
... ... @@ -773,9 +773,11 @@
773 773  (% _mstvisible="2" %)
774 774  (((
775 775  (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
862 +(((
776 776  a) DR0: max is 11 bytes so one entry of data
777 777  )))
778 778  )))
866 +)))
779 779  
780 780  (% _mstvisible="1" %)
781 781  (((
... ... @@ -782,9 +782,11 @@
782 782  (% _mstvisible="2" %)
783 783  (((
784 784  (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
873 +(((
785 785  b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
786 786  )))
787 787  )))
877 +)))
788 788  
789 789  (% _mstvisible="1" %)
790 790  (((
... ... @@ -791,9 +791,11 @@
791 791  (% _mstvisible="2" %)
792 792  (((
793 793  (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
884 +(((
794 794  c) DR2: total payload includes 11 entries of data
795 795  )))
796 796  )))
888 +)))
797 797  
798 798  (% _mstvisible="1" %)
799 799  (((
... ... @@ -800,9 +800,11 @@
800 800  (% _mstvisible="2" %)
801 801  (((
802 802  (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
895 +(((
803 803  d) DR3: total payload includes 22 entries of data.
804 804  )))
805 805  )))
899 +)))
806 806  
807 807  (% _mstvisible="1" %)
808 808  (((
... ... @@ -809,9 +809,11 @@
809 809  (% _mstvisible="2" %)
810 810  (((
811 811  (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
906 +(((
812 812  If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
813 813  )))
814 814  )))
910 +)))
815 815  
816 816  
817 817  (% _mstvisible="1" style="text-align: left;" %)
... ... @@ -857,55 +857,99 @@
857 857  [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
858 858  
859 859  (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
956 +(((
860 860  7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
958 +)))
861 861  
862 862  (% _msthash="315237" _msttexthash="1385839" %)
961 +(((
863 863  Where the first 11 bytes is for the first entry:
963 +)))
864 864  
865 865  (% _msthash="315238" _msttexthash="274846" %)
966 +(((
866 866  7FFF089801464160065F97
968 +)))
867 867  
868 868  (% _msthash="315239" _msttexthash="617435" %)
971 +(((
869 869  Ext sensor data=0x7FFF/100=327.67
973 +)))
870 870  
871 871  (% _msthash="315240" _msttexthash="270543" %)
976 +(((
872 872  Temp=0x0898/100=22.00
978 +)))
873 873  
874 874  (% _msthash="315241" _msttexthash="211783" %)
981 +(((
875 875  Hum=0x0146/10=32.6
983 +)))
876 876  
877 877  (% _msthash="315242" _msttexthash="1569776" %)
986 +(((
878 878  poll message flag & Ext=0x41,means reply data,Ext=1
988 +)))
879 879  
880 880  (% _msthash="315243" _msttexthash="1120509" %)
991 +(((
881 881  Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
993 +)))
882 882  
883 883  
884 884  
885 885  == 2.7 Alarm Mode ==
886 886  
999 +(((
887 887  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.
1001 +)))
888 888  
1003 +(((
889 889  (% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
1005 +)))
890 890  
1007 +(((
891 891  **AT COMMAND FOR ALARM MODE:**
1009 +)))
892 892  
893 893  (% _mstvisible="1" class="box infomessage" %)
894 894  (((
1013 +(((
895 895  **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1015 +)))
896 896  
1017 +(((
897 897  **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1019 +)))
898 898  
1021 +(((
899 899  **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1023 +)))
900 900  
1025 +(((
901 901  **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1027 +)))
902 902  
1029 +(((
903 903  **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
904 904  )))
1032 +)))
905 905  
1034 +(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
906 906  
1036 +Total bytes: 8 bytes
907 907  
1038 +**Example:**AA0100010001003C
908 908  
1040 +WMOD=01
1041 +
1042 +CITEMP=0001
1043 +
1044 +TEMPlow=0001
1045 +
1046 +TEMPhigh=003C
1047 +
1048 +
909 909  == 2.8 LED Indicator ==
910 910  
911 911  The LHT65 has a triple color LED which for easy showing different stage .
... ... @@ -915,12 +915,10 @@
915 915  In a normal working state:
916 916  
917 917  * For each uplink, the BLUE LED or RED LED will blink once.
918 - BLUE LED when external sensor is connected.
1058 +BLUE LED when external sensor is connected.
919 919  * RED LED when external sensor is not connected
920 920  * For each success downlink, the PURPLE LED will blink once
921 921  
922 -
923 -
924 924  == 2.9 installation ==
925 925  
926 926  (% _mstvisible="1" %)
... ... @@ -934,8 +934,24 @@
934 934  
935 935  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
936 936  
937 -1m long breakout cable for LHT65N
1075 +**1m long breakout cable for LHT65N. Features:**
938 938  
1077 +* (((
1078 +Use for AT Command， works for both LHT52/LHT65N
1079 +)))
1080 +* (((
1081 +Update firmware for LHT65N, works for both LHT52/LHT65N
1082 +)))
1083 +* (((
1084 +Supports ADC mode to monitor external ADC
1085 +)))
1086 +* (((
1087 +Supports Interrupt mode
1088 +)))
1089 +* (((
1090 +Exposed All pins from the LHT65N Type-C connector.
1091 +)))
1092 +
939 939  [[image:image-20220619092421-3.png||height="371" width="529"]]
940 940  
941 941  
... ... @@ -955,30 +955,50 @@
955 955  * Operating Range: -40 ~~ 125 °C
956 956  * Working voltage 2.35v ~~ 5v
957 957  
958 -
959 -
960 960  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
961 961  
1114 +(((
962 962  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1116 +)))
963 963  
964 -* AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1118 +* (((
1119 +AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1120 +)))
965 965  
966 -* LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1122 +* (((
1123 +LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1124 +)))
967 967  
1126 +(((
968 968  There are two kinds of commands to configure LHT65N, they are:
1128 +)))
969 969  
970 -* (% style="color:#4f81bd" %)**General Commands**.
1130 +* (((
1131 +(% style="color:#4f81bd" %)**General Commands**.
1132 +)))
971 971  
1134 +(((
972 972  These commands are to configure:
1136 +)))
973 973  
974 -1. General system settings like: uplink interval.
975 -1. LoRaWAN protocol & radio-related commands.
1138 +1. (((
1139 +General system settings like: uplink interval.
1140 +)))
1141 +1. (((
1142 +LoRaWAN protocol & radio-related commands.
1143 +)))
976 976  
1145 +(((
977 977  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]]
1147 +)))
978 978  
979 -* (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1149 +* (((
1150 +(% style="color:#4f81bd" %)**Commands special design for LHT65N**
1151 +)))
980 980  
1153 +(((
981 981  These commands are only valid for LHT65N, as below:
1155 +)))
982 982  
983 983  
984 984  == 4.1 Set Transmit Interval Time ==
... ... @@ -1021,7 +1021,6 @@
1021 1021  
1022 1022  * 0xA20702003c: Same as AT+SETCNT=60
1023 1023  
1024 -
1025 1025  == 4.3 Enable/Disable uplink Temperature probe ID ==
1026 1026  
1027 1027  (((
... ... @@ -1049,7 +1049,6 @@
1049 1049  * **0xA800**  **~-~->** AT+PID=0
1050 1050  * **0xA801**     **~-~->** AT+PID=1
1051 1051  
1052 -
1053 1053  == 4.4 Set Password ==
1054 1054  
1055 1055  Feature: Set device password, max 9 digits
... ... @@ -1096,8 +1096,6 @@
1096 1096  
1097 1097  * There is no downlink command to set to Sleep mode.
1098 1098  
1099 -
1100 -
1101 1101  == 4.7 Set system time ==
1102 1102  
1103 1103  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
... ... @@ -1194,8 +1194,6 @@
1194 1194  
1195 1195  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1196 1196  
1197 -
1198 -
1199 1199  == 4.13 Auto Send None-ACK messages ==
1200 1200  
1201 1201  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
... ... @@ -1214,7 +1214,6 @@
1214 1214  
1215 1215  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1216 1216  
1217 -
1218 1218  = 5. Battery & How to replace =
1219 1219  
1220 1220  == 5.1 Battery Type ==
... ... @@ -1274,16 +1274,11 @@
1274 1274  
1275 1275  (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1276 1276  
1277 -(% _msthash="506062" _msttexthash="1187732" %)
1278 -**✓ (% style="background-color:yellow" %)USB to TTL GND <~-~->GND(%%)**
1444 +* (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1445 +* (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1446 +* (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1447 +* (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1279 1279  
1280 -(% _msthash="506063" _msttexthash="1158313" %)**✓  **(% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1281 -
1282 -(% _msthash="506064" _msttexthash="1175629" %)**✓  **(% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1283 -
1284 -(% _msthash="506065" _msttexthash="1164696" %)**✓  **(% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1285 -
1286 -
1287 1287  (((
1288 1288  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.
1289 1289  )))
... ... @@ -1592,7 +1592,59 @@
1592 1592  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1593 1593  
1594 1594  
1757 +== 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1595 1595  
1759 +[[image:image-20220623110706-1.png]]
1760 +
1761 +
1762 +[[image:image-20220623112117-4.png||height="459" width="343"]]
1763 +
1764 +(((
1765 +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.
1766 +)))
1767 +
1768 +
1769 +Input password and ATZ to activate LHT65N,As shown below:
1770 +
1771 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1772 +
1773 +
1774 +== 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1775 +
1776 +[[image:image-20220623110706-1.png]]
1777 +
1778 +(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1779 +
1780 +[[image:image-20220615170542-5.png]]
1781 +
1782 +
1783 +(% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1784 +
1785 +(% _msthash="506146" _msttexthash="52173160" %)
1786 +First connect the four lines；
1787 +
1788 +(% _msthash="506146" _msttexthash="52173160" %)
1789 +[[image:image-20220623113959-5.png||height="528" width="397"]]
1790 +
1791 +(% _msthash="506146" _msttexthash="52173160" %)
1792 +Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1793 +
1794 +(% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1795 +
1796 +[[image:image-20220615171334-6.png]]
1797 +
1798 +
1799 +Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1800 +
1801 +
1802 +When this interface appears, it indicates that the download has been completed.
1803 +
1804 +[[image:image-20220620160723-8.png]]
1805 +
1806 +
1807 +Finally,restart reset device again
1808 +
1809 +
1596 1596  = 7. Order Info =
1597 1597  
1598 1598  
... ... @@ -1620,8 +1620,6 @@
1620 1620  
1621 1621  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1622 1622  
1623 -
1624 -
1625 1625  = 8. Packing Info =
1626 1626  
1627 1627  
... ... @@ -1635,7 +1635,6 @@
1635 1635  * Device Size:  10 x 10 x 3.5 cm
1636 1636  * Device Weight: 120.5g
1637 1637  
1638 -
1639 1639  = 9. Reference material =
1640 1640  
1641 1641  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
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