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Last modified by Xiaoling on 2023/07/18 10:12
From version 185.2
edited by Xiaoling
on 2022/06/29 13:55
Change comment: There is no comment for this version
To version 174.1
edited by Bei Jinggeng
on 2022/06/23 11:21
Change comment: Uploaded new attachment "image-20220623112117-4.png", version {1}

Summary

Details

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Author
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1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
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58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature
60 60  
61 +
62 +
63 +
64 +
61 61  == 1.3 Specification ==
62 62  
63 63  
... ... @@ -82,6 +82,10 @@
82 82  * ±2°C accuracy from -55°C to +125°C
83 83  * Operating Range: -55 °C ~~ 125 °C
84 84  
89 +
90 +
91 +
92 +
85 85  = 2. Connect LHT65N to IoT Server =
86 86  
87 87  == 2.1 How does LHT65N work? ==
... ... @@ -263,6 +263,9 @@
263 263  * The 7th byte (EXT #): defines the external sensor model.
264 264  * 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.)
265 265  
274 +
275 +
276 +
266 266  === 2.4.1 Decoder in TTN V3 ===
267 267  
268 268  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.
... ... @@ -293,6 +293,9 @@
293 293  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
294 294  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
295 295  
307 +
308 +
309 +
296 296  === 2.4.3 Built-in Temperature ===
297 297  
298 298  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
... ... @@ -303,6 +303,9 @@
303 303  
304 304  * Temperature:  (0xF5C6-65536)/100=-26.18℃
305 305  
320 +
321 +
322 +
306 306  === 2.4.4 Built-in Humidity ===
307 307  
308 308  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
... ... @@ -309,6 +309,9 @@
309 309  
310 310  * Humidity:    0x025C/10=60.4%
311 311  
329 +
330 +
331 +
312 312  === 2.4.5 Ext # ===
313 313  
314 314  Bytes for External Sensor:
... ... @@ -461,6 +461,9 @@
461 461  * 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.
462 462  * 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)
463 463  
484 +
485 +
486 +
464 464  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
465 465  
466 466  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
... ... @@ -471,42 +471,8 @@
471 471  
472 472  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
473 473  
474 -For example:
475 475  
476 -AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
477 477  
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 -
510 510  == 2.5 Show data on Datacake ==
511 511  
512 512  (((
... ... @@ -569,6 +569,9 @@
569 569  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
570 570  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.
571 571  
561 +
562 +
563 +
572 572  === 2.6.2 Unix TimeStamp ===
573 573  
574 574  
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1024 1024  * RED LED when external sensor is not connected
1025 1025  * For each success downlink, the PURPLE LED will blink once
1026 1026  
1019 +
1020 +
1021 +
1027 1027  == 2.9 installation ==
1028 1028  
1029 1029  (% _mstvisible="1" %)
... ... @@ -1037,24 +1037,8 @@
1037 1037  
1038 1038  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1039 1039  
1040 -**1m long breakout cable for LHT65N. Features:**
1035 +1m long breakout cable for LHT65N
1041 1041  
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 -
1058 1058  [[image:image-20220619092421-3.png||height="371" width="529"]]
1059 1059  
1060 1060  
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1074 1074  * Operating Range: -40 ~~ 125 °C
1075 1075  * Working voltage 2.35v ~~ 5v
1076 1076  
1056 +
1057 +
1058 +
1077 1077  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1078 1078  
1079 1079  (((
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1139 1139  
1140 1140  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1141 1141  
1124 +
1125 +
1126 +
1142 1142  == 4.2 Set External Sensor Mode ==
1143 1143  
1144 1144  Feature: Change External Sensor Mode.
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1160 1160  
1161 1161  * 0xA20702003c: Same as AT+SETCNT=60
1162 1162  
1148 +
1149 +
1150 +
1163 1163  == 4.3 Enable/Disable uplink Temperature probe ID ==
1164 1164  
1165 1165  (((
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1187 1187  * **0xA800**  **~-~->** AT+PID=0
1188 1188  * **0xA801**     **~-~->** AT+PID=1
1189 1189  
1178 +
1179 +
1180 +
1190 1190  == 4.4 Set Password ==
1191 1191  
1192 1192  Feature: Set device password, max 9 digits
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1233 1233  
1234 1234  * There is no downlink command to set to Sleep mode.
1235 1235  
1227 +
1228 +
1229 +
1236 1236  == 4.7 Set system time ==
1237 1237  
1238 1238  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
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1329 1329  
1330 1330  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1331 1331  
1326 +
1327 +
1328 +
1332 1332  == 4.13 Auto Send None-ACK messages ==
1333 1333  
1334 1334  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
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1347 1347  
1348 1348  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1349 1349  
1347 +
1348 +
1349 +
1350 1350  = 5. Battery & How to replace =
1351 1351  
1352 1352  == 5.1 Battery Type ==
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1719 1719  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1720 1720  
1721 1721  
1722 -== 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1723 1723  
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 -
1775 1775  = 7. Order Info =
1776 1776  
1777 1777  
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1802 1802  
1803 1803  
1804 1804  
1805 -
1806 1806  = 8. Packing Info =
1807 1807  
1808 1808  
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1819 1819  
1820 1820  
1821 1821  
1822 -
1823 1823  = 9. Reference material =
1824 1824  
1825 1825  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
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1827 1827  
1828 1828  
1829 1829  
1830 -
1831 1831  = 10. FCC Warning =
1832 1832  
1833 1833  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
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