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Last modified by Xiaoling on 2023/07/18 10:12
From version 189.5
edited by Xiaoling
on 2022/07/22 10:34
Change comment: There is no comment for this version
To version 189.2
edited by Xiaoling
on 2022/07/22 10:33
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -58,9 +58,6 @@
58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature
60 60  
61 -
62 -
63 -
64 64  == 1.3 Specification ==
65 65  
66 66  
... ... @@ -85,9 +85,6 @@
85 85  * ±2°C accuracy from -55°C to +125°C
86 86  * Operating Range: -55 °C ~~ 125 °C
87 87  
88 -
89 -
90 -
91 91  = 2. Connect LHT65N to IoT Server =
92 92  
93 93  == 2.1 How does LHT65N work? ==
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166 166  [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
167 167  
168 168  
163 +Note: LHT65N use same payload as LHT65.
169 169  
170 -(% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
171 171  
172 -
173 173  [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
174 174  
175 175  
... ... @@ -270,8 +270,6 @@
270 270  * The 7th byte (EXT #): defines the external sensor model.
271 271  * 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.)
272 272  
273 -
274 -
275 275  === 2.4.1 Decoder in TTN V3 ===
276 276  
277 277  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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302 302  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
303 303  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
304 304  
305 -
306 -
307 307  === 2.4.3 Built-in Temperature ===
308 308  
309 309  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
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316 316  
317 317  
318 318  
308 +
319 319  === 2.4.4 Built-in Humidity ===
320 320  
321 321  [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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324 324  
325 325  
326 326  
317 +
327 327  === 2.4.5 Ext # ===
328 328  
329 329  Bytes for External Sensor:
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479 479  * (% 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)
480 480  
481 481  
473 +
482 482  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
483 483  
484 484  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can