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Last modified by Xiaoling on 2023/07/18 10:12
From version 175.1
edited by Bei Jinggeng
on 2022/06/23 11:40
Change comment: Uploaded new attachment "image-20220623113959-5.png", version {1}
To version 185.2
edited by Xiaoling
on 2022/06/29 13:55
Change comment: There is no comment for this version

Summary

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1 -XWiki.Bei
1 +XWiki.Xiaoling
Content
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58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature
60 60  
61 -
62 -
63 -
64 -
65 65  == 1.3 Specification ==
66 66  
67 67  
... ... @@ -86,10 +86,6 @@
86 86  * ±2°C accuracy from -55°C to +125°C
87 87  * Operating Range: -55 °C ~~ 125 °C
88 88  
89 -
90 -
91 -
92 -
93 93  = 2. Connect LHT65N to IoT Server =
94 94  
95 95  == 2.1 How does LHT65N work? ==
... ... @@ -271,9 +271,6 @@
271 271  * The 7th byte (EXT #): defines the external sensor model.
272 272  * 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.)
273 273  
274 -
275 -
276 -
277 277  === 2.4.1 Decoder in TTN V3 ===
278 278  
279 279  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.
... ... @@ -304,9 +304,6 @@
304 304  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
305 305  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
306 306  
307 -
308 -
309 -
310 310  === 2.4.3 Built-in Temperature ===
311 311  
312 312  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
... ... @@ -317,9 +317,6 @@
317 317  
318 318  * Temperature:  (0xF5C6-65536)/100=-26.18℃
319 319  
320 -
321 -
322 -
323 323  === 2.4.4 Built-in Humidity ===
324 324  
325 325  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
... ... @@ -326,9 +326,6 @@
326 326  
327 327  * Humidity:    0x025C/10=60.4%
328 328  
329 -
330 -
331 -
332 332  === 2.4.5 Ext # ===
333 333  
334 334  Bytes for External Sensor:
... ... @@ -481,9 +481,6 @@
481 481  * 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.
482 482  * 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)
483 483  
484 -
485 -
486 -
487 487  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
488 488  
489 489  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
... ... @@ -494,8 +494,42 @@
494 494  
495 495  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
496 496  
474 +For example:
497 497  
476 +AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
498 498  
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 +
499 499  == 2.5 Show data on Datacake ==
500 500  
501 501  (((
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558 558  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
559 559  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.
560 560  
561 -
562 -
563 -
564 564  === 2.6.2 Unix TimeStamp ===
565 565  
566 566  
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1016 1016  * RED LED when external sensor is not connected
1017 1017  * For each success downlink, the PURPLE LED will blink once
1018 1018  
1019 -
1020 -
1021 -
1022 1022  == 2.9 installation ==
1023 1023  
1024 1024  (% _mstvisible="1" %)
... ... @@ -1032,8 +1032,24 @@
1032 1032  
1033 1033  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1034 1034  
1035 -1m long breakout cable for LHT65N
1040 +**1m long breakout cable for LHT65N. Features:**
1036 1036  
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 +
1037 1037  [[image:image-20220619092421-3.png||height="371" width="529"]]
1038 1038  
1039 1039  
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1053 1053  * Operating Range: -40 ~~ 125 °C
1054 1054  * Working voltage 2.35v ~~ 5v
1055 1055  
1056 -
1057 -
1058 -
1059 1059  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1060 1060  
1061 1061  (((
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1121 1121  
1122 1122  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1123 1123  
1124 -
1125 -
1126 -
1127 1127  == 4.2 Set External Sensor Mode ==
1128 1128  
1129 1129  Feature: Change External Sensor Mode.
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1145 1145  
1146 1146  * 0xA20702003c: Same as AT+SETCNT=60
1147 1147  
1148 -
1149 -
1150 -
1151 1151  == 4.3 Enable/Disable uplink Temperature probe ID ==
1152 1152  
1153 1153  (((
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1175 1175  * **0xA800**  **~-~->** AT+PID=0
1176 1176  * **0xA801**     **~-~->** AT+PID=1
1177 1177  
1178 -
1179 -
1180 -
1181 1181  == 4.4 Set Password ==
1182 1182  
1183 1183  Feature: Set device password, max 9 digits
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1224 1224  
1225 1225  * There is no downlink command to set to Sleep mode.
1226 1226  
1227 -
1228 -
1229 -
1230 1230  == 4.7 Set system time ==
1231 1231  
1232 1232  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
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1323 1323  
1324 1324  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1325 1325  
1326 -
1327 -
1328 -
1329 1329  == 4.13 Auto Send None-ACK messages ==
1330 1330  
1331 1331  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
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1344 1344  
1345 1345  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1346 1346  
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 ==
1722 1722  
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 +
1723 1723  = 7. Order Info =
1724 1724  
1725 1725  
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1750 1750  
1751 1751  
1752 1752  
1805 +
1753 1753  = 8. Packing Info =
1754 1754  
1755 1755  
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1766 1766  
1767 1767  
1768 1768  
1822 +
1769 1769  = 9. Reference material =
1770 1770  
1771 1771  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
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1773 1773  
1774 1774  
1775 1775  
1830 +
1776 1776  = 10. FCC Warning =
1777 1777  
1778 1778  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
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