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Last modified by Xiaoling on 2023/07/18 10:12
From version 185.1
edited by Bei Jinggeng
on 2022/06/28 15:12
Change comment: There is no comment for this version
To version 170.32
edited by Xiaoling
on 2022/06/22 11:23
Change comment: There is no comment for this version

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1 -XWiki.Bei
1 +XWiki.Xiaoling
Content
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265 265  * The 7th byte (EXT #): defines the external sensor model.
266 266  * 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.)
267 267  
268 +
269 +
270 +
271 +
268 268  === 2.4.1 Decoder in TTN V3 ===
269 269  
270 270  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.
... ... @@ -295,6 +295,10 @@
295 295  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
296 296  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
297 297  
302 +
303 +
304 +
305 +
298 298  === 2.4.3 Built-in Temperature ===
299 299  
300 300  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
... ... @@ -305,6 +305,10 @@
305 305  
306 306  * Temperature:  (0xF5C6-65536)/100=-26.18℃
307 307  
316 +
317 +
318 +
319 +
308 308  === 2.4.4 Built-in Humidity ===
309 309  
310 310  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
... ... @@ -311,6 +311,10 @@
311 311  
312 312  * Humidity:    0x025C/10=60.4%
313 313  
326 +
327 +
328 +
329 +
314 314  === 2.4.5 Ext # ===
315 315  
316 316  Bytes for External Sensor:
... ... @@ -463,6 +463,10 @@
463 463  * 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.
464 464  * 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)
465 465  
482 +
483 +
484 +
485 +
466 466  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
467 467  
468 468  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
... ... @@ -473,42 +473,8 @@
473 473  
474 474  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
475 475  
476 -For example:
477 477  
478 -AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
479 479  
480 -
481 -Or use **downlink command A2** to set the same.
482 -
483 -The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
484 -
485 -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.
486 -
487 -[[image:image-20220628150112-1.png||height="241" width="285"]]
488 -
489 -
490 -When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
491 -
492 -[[image:image-20220628150714-4.png]]
493 -
494 -
495 -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.
496 -
497 -1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
498 -
499 -[[image:image-20220628151005-5.png]]
500 -
501 -
502 -2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
503 -
504 -[[image:image-20220628151056-6.png]]
505 -
506 -
507 -3) Within range
508 -
509 -[[image:image-20220628151143-7.png]]
510 -
511 -
512 512  == 2.5 Show data on Datacake ==
513 513  
514 514  (((
... ... @@ -571,6 +571,10 @@
571 571  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
572 572  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.
573 573  
560 +
561 +
562 +
563 +
574 574  === 2.6.2 Unix TimeStamp ===
575 575  
576 576  
... ... @@ -1013,6 +1013,7 @@
1013 1013  
1014 1014  
1015 1015  
1006 +
1016 1016  == 2.8 LED Indicator ==
1017 1017  
1018 1018  The LHT65 has a triple color LED which for easy showing different stage .
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1026 1026  * RED LED when external sensor is not connected
1027 1027  * For each success downlink, the PURPLE LED will blink once
1028 1028  
1020 +
1021 +
1022 +
1023 +
1029 1029  == 2.9 installation ==
1030 1030  
1031 1031  (% _mstvisible="1" %)
... ... @@ -1039,24 +1039,8 @@
1039 1039  
1040 1040  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1041 1041  
1042 -**1m long breakout cable for LHT65N. Features:**
1037 +1m long breakout cable for LHT65N
1043 1043  
1044 -* (((
1045 -Use for AT Command， works for both LHT52/LHT65N
1046 -)))
1047 -* (((
1048 -Update firmware for LHT65N, works for both LHT52/LHT65N
1049 -)))
1050 -* (((
1051 -Supports ADC mode to monitor external ADC
1052 -)))
1053 -* (((
1054 -Supports Interrupt mode
1055 -)))
1056 -* (((
1057 -Exposed All pins from the LHT65N Type-C connector.
1058 -)))
1059 -
1060 1060  [[image:image-20220619092421-3.png||height="371" width="529"]]
1061 1061  
1062 1062  
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1078 1078  
1079 1079  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1080 1080  
1081 -(((
1082 1082  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1083 -)))
1084 1084  
1085 -* (((
1086 -AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1087 -)))
1062 +* AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1088 1088  
1089 -* (((
1090 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1091 -)))
1064 +* LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1092 1092  
1093 -(((
1094 1094  There are two kinds of commands to configure LHT65N, they are:
1095 -)))
1096 1096  
1097 -* (((
1098 -(% style="color:#4f81bd" %)**General Commands**.
1099 -)))
1068 +* (% style="color:#4f81bd" %)**General Commands**.
1100 1100  
1101 -(((
1102 1102  These commands are to configure:
1103 -)))
1104 1104  
1105 -1. (((
1106 -General system settings like: uplink interval.
1107 -)))
1108 -1. (((
1109 -LoRaWAN protocol & radio-related commands.
1110 -)))
1072 +1. General system settings like: uplink interval.
1073 +1. LoRaWAN protocol & radio-related commands.
1111 1111  
1112 -(((
1113 1113  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]]
1114 -)))
1115 1115  
1116 -* (((
1117 -(% style="color:#4f81bd" %)**Commands special design for LHT65N**
1118 -)))
1077 +* (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1119 1119  
1120 -(((
1121 1121  These commands are only valid for LHT65N, as below:
1122 -)))
1123 1123  
1124 1124  
1125 1125  == 4.1 Set Transmit Interval Time ==
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1408 1408  
1409 1409  (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1410 1410  
1411 -* (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1412 -* (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1413 -* (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1414 -* (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1368 +(% _msthash="506062" _msttexthash="1187732" %)
1369 +**✓ (% style="background-color:yellow" %)USB to TTL GND <~-~->GND(%%)**
1415 1415  
1371 +(% _msthash="506063" _msttexthash="1158313" %)**✓  **(% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1372 +
1373 +(% _msthash="506064" _msttexthash="1175629" %)**✓  **(% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1374 +
1375 +(% _msthash="506065" _msttexthash="1164696" %)**✓  **(% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1376 +
1377 +
1416 1416  (((
1417 1417  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.
1418 1418  )))
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1721 1721  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1722 1722  
1723 1723  
1724 -== 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1725 1725  
1726 -[[image:image-20220623110706-1.png]]
1727 -
1728 -
1729 -[[image:image-20220623112117-4.png||height="459" width="343"]]
1730 -
1731 -(((
1732 -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.
1733 -)))
1734 -
1735 -
1736 -Input password and ATZ to activate LHT65N,As shown below:
1737 -
1738 -[[image:image-20220615154519-3.png||height="672" width="807"]]
1739 -
1740 -
1741 -== 6.6 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1742 -
1743 -[[image:image-20220623110706-1.png]]
1744 -
1745 -(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1746 -
1747 -[[image:image-20220615170542-5.png]]
1748 -
1749 -
1750 -(% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1751 -
1752 -(% _msthash="506146" _msttexthash="52173160" %)
1753 -First connect the four lines；
1754 -
1755 -(% _msthash="506146" _msttexthash="52173160" %)
1756 -[[image:image-20220623113959-5.png||height="528" width="397"]]
1757 -
1758 -(% _msthash="506146" _msttexthash="52173160" %)
1759 -Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1760 -
1761 -(% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1762 -
1763 -[[image:image-20220615171334-6.png]]
1764 -
1765 -
1766 -Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1767 -
1768 -
1769 -When this interface appears, it indicates that the download has been completed.
1770 -
1771 -[[image:image-20220620160723-8.png]]
1772 -
1773 -
1774 -Finally,restart reset device again
1775 -
1776 -
1777 1777  = 7. Order Info =
1778 1778  
1779 1779  
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