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Last modified by Xiaoling on 2023/07/18 10:12
From version 189.3
edited by Xiaoling
on 2022/07/22 10:33
Change comment: There is no comment for this version
To version 170.25
edited by Xiaoling
on 2022/06/22 11:16
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -58,6 +58,9 @@
58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature
60 60  
61 +
62 +
63 +
61 61  == 1.3 Specification ==
62 62  
63 63  
... ... @@ -86,31 +86,19 @@
86 86  
87 87  == 2.1 How does LHT65N work? ==
88 88  
89 -(((
90 90  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 -)))
92 92  
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 -)))
96 96  
97 97  
98 98  == 2.2 How to Activate LHT65N? ==
99 99  
100 -(((
101 101  The LHT65N has two working modes:
102 -)))
103 103  
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 -)))
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. 
110 110  
111 -(((
112 112  The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
113 -)))
114 114  
115 115  
116 116  [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
... ... @@ -265,7 +265,6 @@
265 265  
266 266  
267 267  
268 -
269 269  === 2.4.1 Decoder in TTN V3 ===
270 270  
271 271  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.
... ... @@ -297,8 +297,6 @@
297 297  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
298 298  
299 299  
300 -
301 -
302 302  === 2.4.3 Built-in Temperature ===
303 303  
304 304  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
... ... @@ -309,9 +309,6 @@
309 309  
310 310  * Temperature:  (0xF5C6-65536)/100=-26.18℃
311 311  
312 -
313 -
314 -
315 315  === 2.4.4 Built-in Humidity ===
316 316  
317 317  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
... ... @@ -318,9 +318,6 @@
318 318  
319 319  * Humidity:    0x025C/10=60.4%
320 320  
321 -
322 -
323 -
324 324  === 2.4.5 Ext # ===
325 325  
326 326  Bytes for External Sensor:
... ... @@ -467,16 +467,13 @@
467 467  
468 468  * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
469 469  
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)
452 +[[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
473 473  
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)
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)
477 477  
478 478  
479 -
480 480  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
481 481  
482 482  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
... ... @@ -487,43 +487,8 @@
487 487  
488 488  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
489 489  
490 -For example:
491 491  
492 -AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
493 493  
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 -
527 527  == 2.5 Show data on Datacake ==
528 528  
529 529  (((
... ... @@ -583,14 +583,11 @@
583 583  
584 584  There are two methods:
585 585  
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.
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.
588 588  
589 -Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
590 590  
591 -[[image:image-20220703111700-2.png||height="381" width="1119"]]
592 592  
593 -
594 594  === 2.6.2 Unix TimeStamp ===
595 595  
596 596  
... ... @@ -613,37 +613,20 @@
613 613  
614 614  === 2.6.3 Set Device Time ===
615 615  
616 -(((
617 617  There are two ways to set device's time:
618 -)))
619 619  
620 -(((
621 621  **~1. Through LoRaWAN MAC Command (Default settings)**
622 -)))
623 623  
624 -(((
625 625  User need to set SYNCMOD=1 to enable sync time via MAC command.
626 -)))
627 627  
628 -(((
629 629  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 -)))
631 631  
632 -(((
633 633  (% 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 -)))
635 635  
636 -(((
637 -
638 -)))
639 639  
640 -(((
641 641  **2. Manually Set Time**
642 -)))
643 643  
644 -(((
645 645  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 -)))
647 647  
648 648  
649 649  
... ... @@ -810,11 +810,9 @@
810 810  (% _mstvisible="2" %)
811 811  (((
812 812  (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
813 -(((
814 814  Poll Message Flag: 1: This message is a poll message reply.
815 815  )))
816 816  )))
817 -)))
818 818  
819 819  (% _mstvisible="1" %)
820 820  * (% _mstvisible="3" %)
... ... @@ -822,21 +822,17 @@
822 822  (% _mstvisible="4" %)
823 823  (((
824 824  (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
825 -(((
826 826  Poll Message Flag is set to 1.
827 827  )))
828 828  )))
829 -)))
830 830  * (% _mstvisible="3" %)
831 831  (((
832 832  (% _mstvisible="4" %)
833 833  (((
834 834  (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
835 -(((
836 836  Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
837 837  )))
838 838  )))
839 -)))
840 840  
841 841  (% _mstvisible="1" %)
842 842  (((
... ... @@ -843,16 +843,12 @@
843 843  (% _mstvisible="2" %)
844 844  (((
845 845  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
846 -(((
847 847  
848 -)))
849 849  
850 850  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
851 -(((
852 852  For example, in US915 band, the max payload for different DR is:
853 853  )))
854 854  )))
855 -)))
856 856  
857 857  (% _mstvisible="1" %)
858 858  (((
... ... @@ -859,11 +859,9 @@
859 859  (% _mstvisible="2" %)
860 860  (((
861 861  (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
862 -(((
863 863  a) DR0: max is 11 bytes so one entry of data
864 864  )))
865 865  )))
866 -)))
867 867  
868 868  (% _mstvisible="1" %)
869 869  (((
... ... @@ -870,11 +870,9 @@
870 870  (% _mstvisible="2" %)
871 871  (((
872 872  (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
873 -(((
874 874  b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
875 875  )))
876 876  )))
877 -)))
878 878  
879 879  (% _mstvisible="1" %)
880 880  (((
... ... @@ -881,11 +881,9 @@
881 881  (% _mstvisible="2" %)
882 882  (((
883 883  (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
884 -(((
885 885  c) DR2: total payload includes 11 entries of data
886 886  )))
887 887  )))
888 -)))
889 889  
890 890  (% _mstvisible="1" %)
891 891  (((
... ... @@ -892,11 +892,9 @@
892 892  (% _mstvisible="2" %)
893 893  (((
894 894  (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
895 -(((
896 896  d) DR3: total payload includes 22 entries of data.
897 897  )))
898 898  )))
899 -)))
900 900  
901 901  (% _mstvisible="1" %)
902 902  (((
... ... @@ -903,11 +903,9 @@
903 903  (% _mstvisible="2" %)
904 904  (((
905 905  (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
906 -(((
907 907  If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
908 908  )))
909 909  )))
910 -)))
911 911  
912 912  
913 913  (% _mstvisible="1" style="text-align: left;" %)
... ... @@ -953,99 +953,55 @@
953 953  [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
954 954  
955 955  (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
956 -(((
957 957  7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
958 -)))
959 959  
960 960  (% _msthash="315237" _msttexthash="1385839" %)
961 -(((
962 962  Where the first 11 bytes is for the first entry:
963 -)))
964 964  
965 965  (% _msthash="315238" _msttexthash="274846" %)
966 -(((
967 967  7FFF089801464160065F97
968 -)))
969 969  
970 970  (% _msthash="315239" _msttexthash="617435" %)
971 -(((
972 972  Ext sensor data=0x7FFF/100=327.67
973 -)))
974 974  
975 975  (% _msthash="315240" _msttexthash="270543" %)
976 -(((
977 977  Temp=0x0898/100=22.00
978 -)))
979 979  
980 980  (% _msthash="315241" _msttexthash="211783" %)
981 -(((
982 982  Hum=0x0146/10=32.6
983 -)))
984 984  
985 985  (% _msthash="315242" _msttexthash="1569776" %)
986 -(((
987 987  poll message flag & Ext=0x41,means reply data,Ext=1
988 -)))
989 989  
990 990  (% _msthash="315243" _msttexthash="1120509" %)
991 -(((
992 992  Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
993 -)))
994 994  
995 995  
996 996  
997 997  == 2.7 Alarm Mode ==
998 998  
999 -(((
1000 1000  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 -)))
1002 1002  
1003 -(((
1004 1004  (% 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 -)))
1006 1006  
1007 -(((
1008 1008  **AT COMMAND FOR ALARM MODE:**
1009 -)))
1010 1010  
1011 1011  (% _mstvisible="1" class="box infomessage" %)
1012 1012  (((
1013 -(((
1014 1014  **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1015 -)))
1016 1016  
1017 -(((
1018 1018  **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1019 -)))
1020 1020  
1021 -(((
1022 1022  **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1023 -)))
1024 1024  
1025 -(((
1026 1026  **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1027 -)))
1028 1028  
1029 -(((
1030 1030  **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1031 1031  )))
1032 -)))
1033 1033  
1034 -(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1035 1035  
1036 -Total bytes: 8 bytes
1037 1037  
1038 -**Example:**AA0100010001003C
1039 1039  
1040 -WMOD=01
1041 -
1042 -CITEMP=0001
1043 -
1044 -TEMPlow=0001
1045 -
1046 -TEMPhigh=003C
1047 -
1048 -
1049 1049  == 2.8 LED Indicator ==
1050 1050  
1051 1051  The LHT65 has a triple color LED which for easy showing different stage .
... ... @@ -1055,10 +1055,12 @@
1055 1055  In a normal working state:
1056 1056  
1057 1057  * For each uplink, the BLUE LED or RED LED will blink once.
1058 -BLUE LED when external sensor is connected.
918 + BLUE LED when external sensor is connected.
1059 1059  * RED LED when external sensor is not connected
1060 1060  * For each success downlink, the PURPLE LED will blink once
1061 1061  
922 +
923 +
1062 1062  == 2.9 installation ==
1063 1063  
1064 1064  (% _mstvisible="1" %)
... ... @@ -1072,24 +1072,8 @@
1072 1072  
1073 1073  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1074 1074  
1075 -**1m long breakout cable for LHT65N. Features:**
937 +1m long breakout cable for LHT65N
1076 1076  
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 -
1093 1093  [[image:image-20220619092421-3.png||height="371" width="529"]]
1094 1094  
1095 1095  
... ... @@ -1109,50 +1109,30 @@
1109 1109  * Operating Range: -40 ~~ 125 °C
1110 1110  * Working voltage 2.35v ~~ 5v
1111 1111  
958 +
959 +
1112 1112  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1113 1113  
1114 -(((
1115 1115  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1116 -)))
1117 1117  
1118 -* (((
1119 -AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1120 -)))
964 +* AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1121 1121  
1122 -* (((
1123 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1124 -)))
966 +* LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1125 1125  
1126 -(((
1127 1127  There are two kinds of commands to configure LHT65N, they are:
1128 -)))
1129 1129  
1130 -* (((
1131 -(% style="color:#4f81bd" %)**General Commands**.
1132 -)))
970 +* (% style="color:#4f81bd" %)**General Commands**.
1133 1133  
1134 -(((
1135 1135  These commands are to configure:
1136 -)))
1137 1137  
1138 -1. (((
1139 -General system settings like: uplink interval.
1140 -)))
1141 -1. (((
1142 -LoRaWAN protocol & radio-related commands.
1143 -)))
974 +1. General system settings like: uplink interval.
975 +1. LoRaWAN protocol & radio-related commands.
1144 1144  
1145 -(((
1146 1146  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 -)))
1148 1148  
1149 -* (((
1150 -(% style="color:#4f81bd" %)**Commands special design for LHT65N**
1151 -)))
979 +* (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1152 1152  
1153 -(((
1154 1154  These commands are only valid for LHT65N, as below:
1155 -)))
1156 1156  
1157 1157  
1158 1158  == 4.1 Set Transmit Interval Time ==
... ... @@ -1195,6 +1195,7 @@
1195 1195  
1196 1196  * 0xA20702003c: Same as AT+SETCNT=60
1197 1197  
1024 +
1198 1198  == 4.3 Enable/Disable uplink Temperature probe ID ==
1199 1199  
1200 1200  (((
... ... @@ -1222,6 +1222,7 @@
1222 1222  * **0xA800**  **~-~->** AT+PID=0
1223 1223  * **0xA801**     **~-~->** AT+PID=1
1224 1224  
1052 +
1225 1225  == 4.4 Set Password ==
1226 1226  
1227 1227  Feature: Set device password, max 9 digits
... ... @@ -1268,6 +1268,8 @@
1268 1268  
1269 1269  * There is no downlink command to set to Sleep mode.
1270 1270  
1099 +
1100 +
1271 1271  == 4.7 Set system time ==
1272 1272  
1273 1273  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
... ... @@ -1364,6 +1364,8 @@
1364 1364  
1365 1365  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1366 1366  
1197 +
1198 +
1367 1367  == 4.13 Auto Send None-ACK messages ==
1368 1368  
1369 1369  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
... ... @@ -1382,6 +1382,7 @@
1382 1382  
1383 1383  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1384 1384  
1217 +
1385 1385  = 5. Battery & How to replace =
1386 1386  
1387 1387  == 5.1 Battery Type ==
... ... @@ -1441,11 +1441,16 @@
1441 1441  
1442 1442  (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1443 1443  
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-**
1277 +(% _msthash="506062" _msttexthash="1187732" %)
1278 +**✓ (% style="background-color:yellow" %)USB to TTL GND <~-~->GND(%%)**
1448 1448  
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 +
1449 1449  (((
1450 1450  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.
1451 1451  )))
... ... @@ -1754,59 +1754,7 @@
1754 1754  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1755 1755  
1756 1756  
1757 -== 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1758 1758  
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 -
1810 1810  = 7. Order Info =
1811 1811  
1812 1812  
... ... @@ -1834,6 +1834,8 @@
1834 1834  
1835 1835  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1836 1836  
1623 +
1624 +
1837 1837  = 8. Packing Info =
1838 1838  
1839 1839  
... ... @@ -1847,6 +1847,7 @@
1847 1847  * Device Size:  10 x 10 x 3.5 cm
1848 1848  * Device Weight: 120.5g
1849 1849  
1638 +
1850 1850  = 9. Reference material =
1851 1851  
1852 1852  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
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