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Last modified by Xiaoling on 2023/07/18 10:12
From version 170.31
edited by Xiaoling
on 2022/06/22 11:23
Change comment: There is no comment for this version
To version 185.3
edited by Xiaoling
on 2022/06/29 13:58
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -58,7 +58,6 @@
58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature
60 60  
61 -
62 62  == 1.3 Specification ==
63 63  
64 64  
... ... @@ -83,7 +83,6 @@
83 83  * ±2°C accuracy from -55°C to +125°C
84 84  * Operating Range: -55 °C ~~ 125 °C
85 85  
86 -
87 87  = 2. Connect LHT65N to IoT Server =
88 88  
89 89  == 2.1 How does LHT65N work? ==
... ... @@ -265,10 +265,6 @@
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 -
272 272  === 2.4.1 Decoder in TTN V3 ===
273 273  
274 274  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.
... ... @@ -299,10 +299,6 @@
299 299  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
300 300  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
301 301  
302 -
303 -
304 -
305 -
306 306  === 2.4.3 Built-in Temperature ===
307 307  
308 308  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
... ... @@ -313,10 +313,6 @@
313 313  
314 314  * Temperature:  (0xF5C6-65536)/100=-26.18℃
315 315  
316 -
317 -
318 -
319 -
320 320  === 2.4.4 Built-in Humidity ===
321 321  
322 322  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
... ... @@ -323,10 +323,6 @@
323 323  
324 324  * Humidity:    0x025C/10=60.4%
325 325  
326 -
327 -
328 -
329 -
330 330  === 2.4.5 Ext # ===
331 331  
332 332  Bytes for External Sensor:
... ... @@ -479,10 +479,6 @@
479 479  * 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.
480 480  * 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)
481 481  
482 -
483 -
484 -
485 -
486 486  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
487 487  
488 488  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
... ... @@ -493,8 +493,42 @@
493 493  
494 494  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
495 495  
474 +For example:
496 496  
476 +AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
497 497  
478 +
479 +Or use **downlink command A2** to set the same.
480 +
481 +The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
482 +
483 +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.
484 +
485 +[[image:image-20220628150112-1.png||height="241" width="285"]]
486 +
487 +
488 +When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
489 +
490 +[[image:image-20220628150714-4.png]]
491 +
492 +
493 +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.
494 +
495 +1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
496 +
497 +[[image:image-20220628151005-5.png]]
498 +
499 +
500 +2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
501 +
502 +[[image:image-20220628151056-6.png]]
503 +
504 +
505 +3) Within range
506 +
507 +[[image:image-20220628151143-7.png]]
508 +
509 +
498 498  == 2.5 Show data on Datacake ==
499 499  
500 500  (((
... ... @@ -557,10 +557,6 @@
557 557  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
558 558  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.
559 559  
560 -
561 -
562 -
563 -
564 564  === 2.6.2 Unix TimeStamp ===
565 565  
566 566  
... ... @@ -1003,7 +1003,6 @@
1003 1003  
1004 1004  
1005 1005  
1006 -
1007 1007  == 2.8 LED Indicator ==
1008 1008  
1009 1009  The LHT65 has a triple color LED which for easy showing different stage .
... ... @@ -1013,7 +1013,7 @@
1013 1013  In a normal working state:
1014 1014  
1015 1015  * For each uplink, the BLUE LED or RED LED will blink once.
1016 - BLUE LED when external sensor is connected.
1023 +BLUE LED when external sensor is connected.
1017 1017  * RED LED when external sensor is not connected
1018 1018  * For each success downlink, the PURPLE LED will blink once
1019 1019  
... ... @@ -1030,8 +1030,24 @@
1030 1030  
1031 1031  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1032 1032  
1033 -1m long breakout cable for LHT65N
1040 +**1m long breakout cable for LHT65N. Features:**
1034 1034  
1042 +* (((
1043 +Use for AT Command， works for both LHT52/LHT65N
1044 +)))
1045 +* (((
1046 +Update firmware for LHT65N, works for both LHT52/LHT65N
1047 +)))
1048 +* (((
1049 +Supports ADC mode to monitor external ADC
1050 +)))
1051 +* (((
1052 +Supports Interrupt mode
1053 +)))
1054 +* (((
1055 +Exposed All pins from the LHT65N Type-C connector.
1056 +)))
1057 +
1035 1035  [[image:image-20220619092421-3.png||height="371" width="529"]]
1036 1036  
1037 1037  
... ... @@ -1053,26 +1053,48 @@
1053 1053  
1054 1054  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1055 1055  
1079 +(((
1056 1056  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1081 +)))
1057 1057  
1058 -* AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1083 +* (((
1084 +AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1085 +)))
1059 1059  
1060 -* LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1087 +* (((
1088 +LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1089 +)))
1061 1061  
1091 +(((
1062 1062  There are two kinds of commands to configure LHT65N, they are:
1093 +)))
1063 1063  
1064 -* (% style="color:#4f81bd" %)**General Commands**.
1095 +* (((
1096 +(% style="color:#4f81bd" %)**General Commands**.
1097 +)))
1065 1065  
1099 +(((
1066 1066  These commands are to configure:
1101 +)))
1067 1067  
1068 -1. General system settings like: uplink interval.
1069 -1. LoRaWAN protocol & radio-related commands.
1103 +1. (((
1104 +General system settings like: uplink interval.
1105 +)))
1106 +1. (((
1107 +LoRaWAN protocol & radio-related commands.
1108 +)))
1070 1070  
1110 +(((
1071 1071  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]]
1112 +)))
1072 1072  
1073 -* (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1114 +* (((
1115 +(% style="color:#4f81bd" %)**Commands special design for LHT65N**
1116 +)))
1074 1074  
1118 +(((
1075 1075  These commands are only valid for LHT65N, as below:
1120 +)))
1076 1076  
1077 1077  
1078 1078  == 4.1 Set Transmit Interval Time ==
... ... @@ -1361,16 +1361,11 @@
1361 1361  
1362 1362  (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1363 1363  
1364 -(% _msthash="506062" _msttexthash="1187732" %)
1365 -**✓ (% style="background-color:yellow" %)USB to TTL GND <~-~->GND(%%)**
1409 +* (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1410 +* (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1411 +* (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1412 +* (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1366 1366  
1367 -(% _msthash="506063" _msttexthash="1158313" %)**✓  **(% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1368 -
1369 -(% _msthash="506064" _msttexthash="1175629" %)**✓  **(% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1370 -
1371 -(% _msthash="506065" _msttexthash="1164696" %)**✓  **(% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1372 -
1373 -
1374 1374  (((
1375 1375  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.
1376 1376  )))
... ... @@ -1679,7 +1679,59 @@
1679 1679  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1680 1680  
1681 1681  
1722 +== 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1682 1682  
1724 +[[image:image-20220623110706-1.png]]
1725 +
1726 +
1727 +[[image:image-20220623112117-4.png||height="459" width="343"]]
1728 +
1729 +(((
1730 +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.
1731 +)))
1732 +
1733 +
1734 +Input password and ATZ to activate LHT65N,As shown below:
1735 +
1736 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1737 +
1738 +
1739 +== 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1740 +
1741 +[[image:image-20220623110706-1.png]]
1742 +
1743 +(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1744 +
1745 +[[image:image-20220615170542-5.png]]
1746 +
1747 +
1748 +(% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1749 +
1750 +(% _msthash="506146" _msttexthash="52173160" %)
1751 +First connect the four lines；
1752 +
1753 +(% _msthash="506146" _msttexthash="52173160" %)
1754 +[[image:image-20220623113959-5.png||height="528" width="397"]]
1755 +
1756 +(% _msthash="506146" _msttexthash="52173160" %)
1757 +Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1758 +
1759 +(% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1760 +
1761 +[[image:image-20220615171334-6.png]]
1762 +
1763 +
1764 +Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1765 +
1766 +
1767 +When this interface appears, it indicates that the download has been completed.
1768 +
1769 +[[image:image-20220620160723-8.png]]
1770 +
1771 +
1772 +Finally,restart reset device again
1773 +
1774 +
1683 1683  = 7. Order Info =
1684 1684  
1685 1685  
... ... @@ -1707,6 +1707,10 @@
1707 1707  
1708 1708  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1709 1709  
1802 +
1803 +
1804 +
1805 +
1710 1710  = 8. Packing Info =
1711 1711  
1712 1712  
... ... @@ -1720,10 +1720,18 @@
1720 1720  * Device Size:  10 x 10 x 3.5 cm
1721 1721  * Device Weight: 120.5g
1722 1722  
1819 +
1820 +
1821 +
1822 +
1723 1723  = 9. Reference material =
1724 1724  
1725 1725  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1726 1726  
1827 +
1828 +
1829 +
1830 +
1727 1727  = 10. FCC Warning =
1728 1728  
1729 1729  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
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