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Last modified by Xiaoling on 2023/07/18 10:12
From version 187.1
edited by Edwin Chen
on 2022/07/03 11:17
Change comment: Uploaded new attachment "image-20220703111700-2.png", version {1}
To version 189.2
edited by Xiaoling
on 2022/07/22 10:33
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
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1 -XWiki.Edwin
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? ==
... ... @@ -271,10 +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 -
278 278  === 2.4.1 Decoder in TTN V3 ===
279 279  
280 280  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.
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305 305  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
306 306  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
307 307  
308 -
309 -
310 -
311 -
312 312  === 2.4.3 Built-in Temperature ===
313 313  
314 314  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
... ... @@ -322,7 +322,6 @@
322 322  
323 323  
324 324  
325 -
326 326  === 2.4.4 Built-in Humidity ===
327 327  
328 328  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
... ... @@ -332,7 +332,6 @@
332 332  
333 333  
334 334  
335 -
336 336  === 2.4.5 Ext # ===
337 337  
338 338  Bytes for External Sensor:
... ... @@ -479,16 +479,16 @@
479 479  
480 480  * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
481 481  
482 -[[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
464 +(% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
465 +|(% 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]**
466 +|(% 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)
483 483  
484 -* Poll Message Flag:  1: This message is a poll message reply, 0: means this is a normal uplink.
485 -* 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.
486 -* 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)
468 +* (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
469 +* (% 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.
470 +* (% 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)
487 487  
488 488  
489 489  
490 -
491 -
492 492  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
493 493  
494 494  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
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595 595  
596 596  There are two methods:
597 597  
598 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
599 -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.
580 +1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
581 +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.
600 600  
583 +Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
601 601  
585 +[[image:image-20220703111700-2.png||height="381" width="1119"]]
602 602  
603 603  
604 -
605 605  === 2.6.2 Unix TimeStamp ===
606 606  
607 607  
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1042 1042  )))
1043 1043  )))
1044 1044  
1028 +(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1045 1045  
1030 +Total bytes: 8 bytes
1046 1046  
1032 +**Example:**AA0100010001003C
1033 +
1034 +WMOD=01
1035 +
1036 +CITEMP=0001
1037 +
1038 +TEMPlow=0001
1039 +
1040 +TEMPhigh=003C
1041 +
1042 +
1047 1047  == 2.8 LED Indicator ==
1048 1048  
1049 1049  The LHT65 has a triple color LED which for easy showing different stage .
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1057 1057  * RED LED when external sensor is not connected
1058 1058  * For each success downlink, the PURPLE LED will blink once
1059 1059  
1060 -
1061 -
1062 -
1063 -
1064 1064  == 2.9 installation ==
1065 1065  
1066 1066  (% _mstvisible="1" %)
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1111 1111  * Operating Range: -40 ~~ 125 °C
1112 1112  * Working voltage 2.35v ~~ 5v
1113 1113  
1114 -
1115 -
1116 -
1117 -
1118 1118  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1119 1119  
1120 1120  (((
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1180 1180  
1181 1181  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1182 1182  
1183 -
1184 -
1185 -
1186 -
1187 1187  == 4.2 Set External Sensor Mode ==
1188 1188  
1189 1189  Feature: Change External Sensor Mode.
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1205 1205  
1206 1206  * 0xA20702003c: Same as AT+SETCNT=60
1207 1207  
1208 -
1209 -
1210 -
1211 -
1212 1212  == 4.3 Enable/Disable uplink Temperature probe ID ==
1213 1213  
1214 1214  (((
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1236 1236  * **0xA800**  **~-~->** AT+PID=0
1237 1237  * **0xA801**     **~-~->** AT+PID=1
1238 1238  
1239 -
1240 -
1241 -
1242 -
1243 1243  == 4.4 Set Password ==
1244 1244  
1245 1245  Feature: Set device password, max 9 digits
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1286 1286  
1287 1287  * There is no downlink command to set to Sleep mode.
1288 1288  
1289 -
1290 -
1291 -
1292 -
1293 1293  == 4.7 Set system time ==
1294 1294  
1295 1295  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
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1386 1386  
1387 1387  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1388 1388  
1389 -
1390 -
1391 -
1392 -
1393 1393  == 4.13 Auto Send None-ACK messages ==
1394 1394  
1395 1395  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
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1408 1408  
1409 1409  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1410 1410  
1411 -
1412 -
1413 -
1414 -
1415 1415  = 5. Battery & How to replace =
1416 1416  
1417 1417  == 5.1 Battery Type ==
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1864 1864  
1865 1865  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1866 1866  
1867 -
1868 -
1869 -
1870 -
1871 1871  = 8. Packing Info =
1872 1872  
1873 1873  
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1881 1881  * Device Size:  10 x 10 x 3.5 cm
1882 1882  * Device Weight: 120.5g
1883 1883  
1884 -
1885 -
1886 -
1887 -
1888 1888  = 9. Reference material =
1889 1889  
1890 1890  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1891 1891  
1892 -
1893 -
1894 -
1895 -
1896 1896  = 10. FCC Warning =
1897 1897  
1898 1898  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions: