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Last modified by Xiaoling on 2023/07/18 10:12
From version 189.6
edited by Xiaoling
on 2022/07/22 10:36
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

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Content
... ... @@ -60,7 +60,6 @@
60 60  
61 61  
62 62  
63 -
64 64  == 1.3 Specification ==
65 65  
66 66  
... ... @@ -87,7 +87,6 @@
87 87  
88 88  
89 89  
90 -
91 91  = 2. Connect LHT65N to IoT Server =
92 92  
93 93  == 2.1 How does LHT65N work? ==
... ... @@ -166,10 +166,9 @@
166 166  [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
167 167  
168 168  
167 +Note: LHT65N use same payload as LHT65.
169 169  
170 -(% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
171 171  
172 -
173 173  [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
174 174  
175 175  
... ... @@ -270,8 +270,6 @@
270 270  * The 7th byte (EXT #): defines the external sensor model.
271 271  * 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.)
272 272  
273 -
274 -
275 275  === 2.4.1 Decoder in TTN V3 ===
276 276  
277 277  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.
... ... @@ -302,8 +302,6 @@
302 302  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
303 303  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
304 304  
305 -
306 -
307 307  === 2.4.3 Built-in Temperature ===
308 308  
309 309  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
... ... @@ -314,8 +314,6 @@
314 314  
315 315  * Temperature:  (0xF5C6-65536)/100=-26.18℃
316 316  
317 -
318 -
319 319  === 2.4.4 Built-in Humidity ===
320 320  
321 321  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
... ... @@ -322,8 +322,6 @@
322 322  
323 323  * Humidity:    0x025C/10=60.4%
324 324  
325 -
326 -
327 327  === 2.4.5 Ext # ===
328 328  
329 329  Bytes for External Sensor:
... ... @@ -470,15 +470,12 @@
470 470  
471 471  * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
472 472  
473 -(% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
474 -|(% 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]**
475 -|(% 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)
462 +[[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
476 476  
477 -* (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
478 -* (% 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.
479 -* (% 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)
464 +* Poll Message Flag:  1: This message is a poll message reply, 0: means this is a normal uplink.
465 +* 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.
466 +* 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)
480 480  
481 -
482 482  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
483 483  
484 484  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
... ... @@ -489,43 +489,8 @@
489 489  
490 490  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
491 491  
492 -For example:
493 493  
494 -AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
495 495  
496 -
497 -Or use **downlink command A2** to set the same.
498 -
499 -The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
500 -
501 -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.
502 -
503 -[[image:image-20220628150112-1.png||height="241" width="285"]]
504 -
505 -
506 -When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
507 -
508 -[[image:image-20220628150714-4.png]]
509 -
510 -
511 -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.
512 -
513 -1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
514 -
515 -[[image:image-20220628151005-5.png]]
516 -
517 -
518 -2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
519 -
520 -[[image:image-20220628151056-6.png]]
521 -
522 -
523 -3) Within range
524 -
525 -[[image:image-20220628151143-7.png]]
526 -
527 -
528 -
529 529  == 2.5 Show data on Datacake ==
530 530  
531 531  (((
... ... @@ -585,14 +585,9 @@
585 585  
586 586  There are two methods:
587 587  
588 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
589 -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.
539 +1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
540 +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.
590 590  
591 -Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
592 -
593 -[[image:image-20220703111700-2.png||height="381" width="1119"]]
594 -
595 -
596 596  === 2.6.2 Unix TimeStamp ===
597 597  
598 598  
... ... @@ -615,37 +615,20 @@
615 615  
616 616  === 2.6.3 Set Device Time ===
617 617  
618 -(((
619 619  There are two ways to set device's time:
620 -)))
621 621  
622 -(((
623 623  **~1. Through LoRaWAN MAC Command (Default settings)**
624 -)))
625 625  
626 -(((
627 627  User need to set SYNCMOD=1 to enable sync time via MAC command.
628 -)))
629 629  
630 -(((
631 631  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).
632 -)))
633 633  
634 -(((
635 635  (% 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.
636 -)))
637 637  
638 -(((
639 -
640 -)))
641 641  
642 -(((
643 643  **2. Manually Set Time**
644 -)))
645 645  
646 -(((
647 647  User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
648 -)))
649 649  
650 650  
651 651  
... ... @@ -812,11 +812,9 @@
812 812  (% _mstvisible="2" %)
813 813  (((
814 814  (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
815 -(((
816 816  Poll Message Flag: 1: This message is a poll message reply.
817 817  )))
818 818  )))
819 -)))
820 820  
821 821  (% _mstvisible="1" %)
822 822  * (% _mstvisible="3" %)
... ... @@ -824,21 +824,17 @@
824 824  (% _mstvisible="4" %)
825 825  (((
826 826  (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
827 -(((
828 828  Poll Message Flag is set to 1.
829 829  )))
830 830  )))
831 -)))
832 832  * (% _mstvisible="3" %)
833 833  (((
834 834  (% _mstvisible="4" %)
835 835  (((
836 836  (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
837 -(((
838 838  Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
839 839  )))
840 840  )))
841 -)))
842 842  
843 843  (% _mstvisible="1" %)
844 844  (((
... ... @@ -845,16 +845,12 @@
845 845  (% _mstvisible="2" %)
846 846  (((
847 847  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
848 -(((
849 849  
850 -)))
851 851  
852 852  (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
853 -(((
854 854  For example, in US915 band, the max payload for different DR is:
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="736725" _msttexthash="1065532" _mstvisible="3" %)
864 -(((
865 865  a) DR0: max is 11 bytes so one entry 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="736726" _msttexthash="3265665" _mstvisible="3" %)
875 -(((
876 876  b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
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="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
886 -(((
887 887  c) DR2: total payload includes 11 entries of data
888 888  )))
889 889  )))
890 -)))
891 891  
892 892  (% _mstvisible="1" %)
893 893  (((
... ... @@ -894,11 +894,9 @@
894 894  (% _mstvisible="2" %)
895 895  (((
896 896  (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
897 -(((
898 898  d) DR3: total payload includes 22 entries of data.
899 899  )))
900 900  )))
901 -)))
902 902  
903 903  (% _mstvisible="1" %)
904 904  (((
... ... @@ -905,11 +905,9 @@
905 905  (% _mstvisible="2" %)
906 906  (((
907 907  (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
908 -(((
909 909  If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
910 910  )))
911 911  )))
912 -)))
913 913  
914 914  
915 915  (% _mstvisible="1" style="text-align: left;" %)
... ... @@ -955,99 +955,55 @@
955 955  [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
956 956  
957 957  (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
958 -(((
959 959  7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
960 -)))
961 961  
962 962  (% _msthash="315237" _msttexthash="1385839" %)
963 -(((
964 964  Where the first 11 bytes is for the first entry:
965 -)))
966 966  
967 967  (% _msthash="315238" _msttexthash="274846" %)
968 -(((
969 969  7FFF089801464160065F97
970 -)))
971 971  
972 972  (% _msthash="315239" _msttexthash="617435" %)
973 -(((
974 974  Ext sensor data=0x7FFF/100=327.67
975 -)))
976 976  
977 977  (% _msthash="315240" _msttexthash="270543" %)
978 -(((
979 979  Temp=0x0898/100=22.00
980 -)))
981 981  
982 982  (% _msthash="315241" _msttexthash="211783" %)
983 -(((
984 984  Hum=0x0146/10=32.6
985 -)))
986 986  
987 987  (% _msthash="315242" _msttexthash="1569776" %)
988 -(((
989 989  poll message flag & Ext=0x41,means reply data,Ext=1
990 -)))
991 991  
992 992  (% _msthash="315243" _msttexthash="1120509" %)
993 -(((
994 994  Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
995 -)))
996 996  
997 997  
998 998  
999 999  == 2.7 Alarm Mode ==
1000 1000  
1001 -(((
1002 1002  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.
1003 -)))
1004 1004  
1005 -(((
1006 1006  (% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
1007 -)))
1008 1008  
1009 -(((
1010 1010  **AT COMMAND FOR ALARM MODE:**
1011 -)))
1012 1012  
1013 1013  (% _mstvisible="1" class="box infomessage" %)
1014 1014  (((
1015 -(((
1016 1016  **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1017 -)))
1018 1018  
1019 -(((
1020 1020  **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1021 -)))
1022 1022  
1023 -(((
1024 1024  **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1025 -)))
1026 1026  
1027 -(((
1028 1028  **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1029 -)))
1030 1030  
1031 -(((
1032 1032  **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1033 1033  )))
1034 -)))
1035 1035  
1036 -(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1037 1037  
1038 -Total bytes: 8 bytes
1039 1039  
1040 -**Example:**AA0100010001003C
1041 1041  
1042 -WMOD=01
1043 -
1044 -CITEMP=0001
1045 -
1046 -TEMPlow=0001
1047 -
1048 -TEMPhigh=003C
1049 -
1050 -
1051 1051  == 2.8 LED Indicator ==
1052 1052  
1053 1053  The LHT65 has a triple color LED which for easy showing different stage .
... ... @@ -1057,13 +1057,10 @@
1057 1057  In a normal working state:
1058 1058  
1059 1059  * For each uplink, the BLUE LED or RED LED will blink once.
1060 -BLUE LED when external sensor is connected.
925 + BLUE LED when external sensor is connected.
1061 1061  * RED LED when external sensor is not connected
1062 1062  * For each success downlink, the PURPLE LED will blink once
1063 1063  
1064 -
1065 -
1066 -
1067 1067  == 2.9 installation ==
1068 1068  
1069 1069  (% _mstvisible="1" %)
... ... @@ -1077,24 +1077,8 @@
1077 1077  
1078 1078  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1079 1079  
1080 -**1m long breakout cable for LHT65N. Features:**
942 +1m long breakout cable for LHT65N
1081 1081  
1082 -* (((
1083 -Use for AT Command， works for both LHT52/LHT65N
1084 -)))
1085 -* (((
1086 -Update firmware for LHT65N, works for both LHT52/LHT65N
1087 -)))
1088 -* (((
1089 -Supports ADC mode to monitor external ADC
1090 -)))
1091 -* (((
1092 -Supports Interrupt mode
1093 -)))
1094 -* (((
1095 -Exposed All pins from the LHT65N Type-C connector.
1096 -)))
1097 -
1098 1098  [[image:image-20220619092421-3.png||height="371" width="529"]]
1099 1099  
1100 1100  
... ... @@ -1114,53 +1114,28 @@
1114 1114  * Operating Range: -40 ~~ 125 °C
1115 1115  * Working voltage 2.35v ~~ 5v
1116 1116  
1117 -
1118 -
1119 -
1120 1120  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1121 1121  
1122 -(((
1123 1123  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1124 -)))
1125 1125  
1126 -* (((
1127 -AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1128 -)))
967 +* AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1129 1129  
1130 -* (((
1131 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1132 -)))
969 +* LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1133 1133  
1134 -(((
1135 1135  There are two kinds of commands to configure LHT65N, they are:
1136 -)))
1137 1137  
1138 -* (((
1139 -(% style="color:#4f81bd" %)**General Commands**.
1140 -)))
973 +* (% style="color:#4f81bd" %)**General Commands**.
1141 1141  
1142 -(((
1143 1143  These commands are to configure:
1144 -)))
1145 1145  
1146 -1. (((
1147 -General system settings like: uplink interval.
1148 -)))
1149 -1. (((
1150 -LoRaWAN protocol & radio-related commands.
1151 -)))
977 +1. General system settings like: uplink interval.
978 +1. LoRaWAN protocol & radio-related commands.
1152 1152  
1153 -(((
1154 1154  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]]
1155 -)))
1156 1156  
1157 -* (((
1158 -(% style="color:#4f81bd" %)**Commands special design for LHT65N**
1159 -)))
982 +* (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1160 1160  
1161 -(((
1162 1162  These commands are only valid for LHT65N, as below:
1163 -)))
1164 1164  
1165 1165  
1166 1166  == 4.1 Set Transmit Interval Time ==
... ... @@ -1182,9 +1182,6 @@
1182 1182  
1183 1183  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1184 1184  
1185 -
1186 -
1187 -
1188 1188  == 4.2 Set External Sensor Mode ==
1189 1189  
1190 1190  Feature: Change External Sensor Mode.
... ... @@ -1206,9 +1206,6 @@
1206 1206  
1207 1207  * 0xA20702003c: Same as AT+SETCNT=60
1208 1208  
1209 -
1210 -
1211 -
1212 1212  == 4.3 Enable/Disable uplink Temperature probe ID ==
1213 1213  
1214 1214  (((
... ... @@ -1236,9 +1236,6 @@
1236 1236  * **0xA800**  **~-~->** AT+PID=0
1237 1237  * **0xA801**     **~-~->** AT+PID=1
1238 1238  
1239 -
1240 -
1241 -
1242 1242  == 4.4 Set Password ==
1243 1243  
1244 1244  Feature: Set device password, max 9 digits
... ... @@ -1285,9 +1285,6 @@
1285 1285  
1286 1286  * There is no downlink command to set to Sleep mode.
1287 1287  
1288 -
1289 -
1290 -
1291 1291  == 4.7 Set system time ==
1292 1292  
1293 1293  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
... ... @@ -1384,9 +1384,6 @@
1384 1384  
1385 1385  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1386 1386  
1387 -
1388 -
1389 -
1390 1390  == 4.13 Auto Send None-ACK messages ==
1391 1391  
1392 1392  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
... ... @@ -1405,9 +1405,6 @@
1405 1405  
1406 1406  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1407 1407  
1408 -
1409 -
1410 -
1411 1411  = 5. Battery & How to replace =
1412 1412  
1413 1413  == 5.1 Battery Type ==
... ... @@ -1467,11 +1467,16 @@
1467 1467  
1468 1468  (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1469 1469  
1470 -* (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1471 -* (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1472 -* (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1473 -* (% 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(%%)**
1474 1474  
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 +
1475 1475  (((
1476 1476  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.
1477 1477  )))
... ... @@ -1780,59 +1780,7 @@
1780 1780  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1781 1781  
1782 1782  
1783 -== 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1784 1784  
1785 -[[image:image-20220623110706-1.png]]
1786 -
1787 -
1788 -[[image:image-20220623112117-4.png||height="459" width="343"]]
1789 -
1790 -(((
1791 -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.
1792 -)))
1793 -
1794 -
1795 -Input password and ATZ to activate LHT65N,As shown below:
1796 -
1797 -[[image:image-20220615154519-3.png||height="672" width="807"]]
1798 -
1799 -
1800 -== 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1801 -
1802 -[[image:image-20220623110706-1.png]]
1803 -
1804 -(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1805 -
1806 -[[image:image-20220615170542-5.png]]
1807 -
1808 -
1809 -(% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1810 -
1811 -(% _msthash="506146" _msttexthash="52173160" %)
1812 -First connect the four lines；
1813 -
1814 -(% _msthash="506146" _msttexthash="52173160" %)
1815 -[[image:image-20220623113959-5.png||height="528" width="397"]]
1816 -
1817 -(% _msthash="506146" _msttexthash="52173160" %)
1818 -Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1819 -
1820 -(% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1821 -
1822 -[[image:image-20220615171334-6.png]]
1823 -
1824 -
1825 -Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1826 -
1827 -
1828 -When this interface appears, it indicates that the download has been completed.
1829 -
1830 -[[image:image-20220620160723-8.png]]
1831 -
1832 -
1833 -Finally,restart reset device again
1834 -
1835 -
1836 1836  = 7. Order Info =
1837 1837  
1838 1838  
... ... @@ -1860,9 +1860,6 @@
1860 1860  
1861 1861  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1862 1862  
1863 -
1864 -
1865 -
1866 1866  = 8. Packing Info =
1867 1867  
1868 1868  
... ... @@ -1876,16 +1876,10 @@
1876 1876  * Device Size:  10 x 10 x 3.5 cm
1877 1877  * Device Weight: 120.5g
1878 1878  
1879 -
1880 -
1881 -
1882 1882  = 9. Reference material =
1883 1883  
1884 1884  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1885 1885  
1886 -
1887 -
1888 -
1889 1889  = 10. FCC Warning =
1890 1890  
1891 1891  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
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