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Last modified by Xiaoling on 2023/07/18 10:12
From version 234.18
edited by Xiaoling
on 2023/04/26 15:19
Change comment: There is no comment for this version
To version 223.3
edited by Xiaoling
on 2022/12/02 15:14
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -5,7 +5,8 @@
5 5  
6 6  
7 7  
8 -**Table of Contents：**
8 +(% _mstvisible="1" %)
9 +(% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
9 9  
10 10  {{toc/}}
11 11  
... ... @@ -46,6 +46,7 @@
46 46  == 1.2 Features ==
47 47  
48 48  
50 +* Wall mountable
49 49  * LoRaWAN v1.0.3 Class A protocol
50 50  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
51 51  * AT Commands to change parameters
... ... @@ -57,6 +57,8 @@
57 57  * Tri-color LED to indicate working status
58 58  * Datalog feature (Max 3328 records)
59 59  
62 +
63 +
60 60  == 1.3 Specification ==
61 61  
62 62  
... ... @@ -81,6 +81,8 @@
81 81  * ±2°C accuracy from -55°C to +125°C
82 82  * Operating Range: -55 °C ~~ 125 °C
83 83  
88 +
89 +
84 84  = 2. Connect LHT65N to IoT Server =
85 85  
86 86  == 2.1 How does LHT65N work? ==
... ... @@ -114,28 +114,20 @@
114 114  )))
115 115  
116 116  
117 -[[image:image-20220515123819-1.png||_mstalt="430742" height="379" width="317"]]
123 +[[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
118 118  
119 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
120 -|=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**Action**
121 -|(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT between 1s < time < 3s|(% style="background-color:#f2f2f2; width:117px" %)Test uplink status|(% style="background-color:#f2f2f2; width:225px" %)(((
122 -If LHT65N is already Joined to rhe LoRaWAN network, LHT65N will send an uplink packet, if LHT65N has external sensor connected,(% style="color:blue" %)**Blue led** (%%)will blink once. If LHT65N has not external sensor, (% style="color:red" %)**Red led**(%%) will blink once.
123 -)))
124 -|(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT for more than 3s|(% style="background-color:#f2f2f2; width:117px" %)Active Device|(% style="background-color:#f2f2f2; width:225px" %)(((
125 -(% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will fast blink 5 times, LHT65N will enter working mode and start to JOIN LoRaWAN network.
126 -(% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after join in network.
127 -)))
128 -|(% style="background-color:#f2f2f2; width:167px" %)Fast press ACT 5 times.|(% style="background-color:#f2f2f2; width:117px" %)Deactivate Device|(% style="background-color:#f2f2f2; width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means LHT65N is in Deep Sleep Mode.
125 +[[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
129 129  
127 +
130 130  == 2.3 Example to join LoRaWAN network ==
131 131  
132 132  
133 -(% class="wikigeneratedid" %)
131 +(% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
134 134  This section shows an example of how to join the TTN V3 LoRaWAN IoT server. Use with other LoRaWAN IoT servers is of a similar procedure.
135 135  
136 136  
137 -(% class="wikigeneratedid" %)
138 -[[image:image-20220522232442-1.png||_mstalt="427830" height="387" width="648"]]
135 +(% _mstvisible="1" class="wikigeneratedid" %)
136 +[[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
139 139  
140 140  
141 141  (((
... ... @@ -154,7 +154,7 @@
154 154  Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
155 155  )))
156 156  
157 -[[image:image-20230426083319-1.png]]
155 +[[image:image-20220617150003-1.jpeg]]
158 158  
159 159  User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
160 160  
... ... @@ -161,13 +161,13 @@
161 161  Add APP EUI in the application.
162 162  
163 163  
164 -[[image:image-20220522232916-3.png||_mstalt="430495"]]
162 +[[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
165 165  
166 166  
167 -[[image:image-20220522232932-4.png||_mstalt="430157"]]
165 +[[image:image-20220522232932-4.png||_mstalt="430157" _mstvisible="3"]]
168 168  
169 169  
170 -[[image:image-20220522232954-5.png||_mstalt="431847"]]
168 +[[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
171 171  
172 172  
173 173  
... ... @@ -174,13 +174,13 @@
174 174  (% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
175 175  
176 176  
177 -[[image:image-20220522233026-6.png||_mstalt="429403"]]
175 +[[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
178 178  
179 179  
180 180  Input APP EUI,  APP KEY and DEV EUI:
181 181  
182 182  
183 -[[image:image-20220522233118-7.png||_mstalt="430430"]]
181 +[[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
184 184  
185 185  
186 186  === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
... ... @@ -190,7 +190,7 @@
190 190  Use ACT button to activate LHT65N and it will auto-join to the TTN V3 network. After join success, it will start to upload sensor data to TTN V3 and user can see in the panel.
191 191  )))
192 192  
193 -[[image:image-20220522233300-8.png||_mstalt="428389" height="219" width="722"]]
191 +[[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
194 194  
195 195  
196 196  == 2.4 Uplink Payload   ( Fport~=2) ==
... ... @@ -197,25 +197,25 @@
197 197  
198 198  
199 199  (((
200 -The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
198 +The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% _mstvisible="3" style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
201 201  )))
202 202  
203 203  (((
204 -After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
202 +After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
205 205  )))
206 206  
207 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:390px" %)
208 -|=(% style="width: 60px;background-color:#D9E2F3" %)(((
205 +(% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:390px" %)
206 +|=(% style="width: 60px;" %)(((
209 209  **Size(bytes)**
210 -)))|=(% style="width: 30px;background-color:#D9E2F3" %)(((
208 +)))|=(% style="width: 30px;" %)(((
211 211  **2**
212 -)))|=(% style="width: 100px;background-color:#D9E2F3" %)(((
210 +)))|=(% style="width: 100px;" %)(((
213 213  **2**
214 -)))|=(% style="width: 100px;background-color:#D9E2F3" %)(((
212 +)))|=(% style="width: 100px;" %)(((
215 215  **2**
216 -)))|=(% style="width: 50px;background-color:#D9E2F3" %)(((
214 +)))|=(% style="width: 50px;" %)(((
217 217  **1**
218 -)))|=(% style="width: 50px;background-color:#D9E2F3" %)(((
216 +)))|=(% style="width: 50px;" %)(((
219 219  **4**
220 220  )))
221 221  |(% style="width:97px" %)(((
... ... @@ -237,11 +237,11 @@
237 237  )))
238 238  
239 239  * The First 6 bytes: has fix meanings for every LHT65N.
240 -
241 241  * The 7th byte (EXT #): defines the external sensor model.
239 +* 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.)
242 242  
243 -* The 8^^th^^ ~~ 11^^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.)
244 244  
242 +
245 245  === 2.4.1 Decoder in TTN V3 ===
246 246  
247 247  
... ... @@ -250,67 +250,55 @@
250 250  Below is the position to put the decoder and LHT65N decoder can be download from here: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
251 251  
252 252  
253 -[[image:image-20220522234118-10.png||_mstalt="451464" height="353" width="729"]]
251 +[[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
254 254  
255 255  
256 256  === 2.4.2 BAT-Battery Info ===
257 257  
258 258  
259 -These two bytes of BAT include the battery state and the actually voltage.
257 +These two bytes of BAT include the battery state and the actually voltage
260 260  
261 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:477px" %)
262 -|=(% style="width: 69px; background-color:#D9E2F3;color:#0070C0" %)(((
263 -**Bit(bit)**
264 -)))|=(% style="width: 253px;background-color:#D9E2F3;color:#0070C0" %)[15:14]|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)[13:0]
265 -|(% style="width:66px" %)(((
266 -**Value**
267 -)))|(% style="width:250px" %)(((
268 -BAT Status
269 -00(b): Ultra Low ( BAT <= 2.50v)
270 -01(b): Low (2.50v <=BAT <= 2.55v)
271 -10(b): OK (2.55v <= BAT <=2.65v)
272 -11(b): Good (BAT >= 2.65v)
273 -)))|(% style="width:152px" %)Actually BAT voltage
259 +[[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
274 274  
275 -**(b)stands for binary**
276 276  
262 +[[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
277 277  
278 -[[image:image-20220522235639-1.png||_mstalt="431392" height="139" width="727"]]
279 279  
280 -
281 281  Check the battery voltage for LHT65N.
282 282  
283 -* BAT status=(0Xcba4>>14)&0xFF=11 (BIN) ，very good
267 +* BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
268 +* Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
284 284  
285 -* Battery Voltage =0xCBA4&0x3FFF=0x0BA4=2980mV
286 286  
271 +
287 287  === 2.4.3 Built-in Temperature ===
288 288  
289 289  
290 -[[image:image-20220522235639-2.png||_mstalt="431756" height="138" width="722"]]
275 +[[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
291 291  
292 292  * Temperature:  0x0ABB/100=27.47℃
293 293  
294 -[[image:image-20220522235639-3.png||_mstalt="432120"]]
279 +[[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
295 295  
296 296  * Temperature:  (0xF5C6-65536)/100=-26.18℃
297 297  
283 +
284 +
298 298  === 2.4.4 Built-in Humidity ===
299 299  
300 300  
301 -[[image:image-20220522235639-4.png||_mstalt="432484" height="138" width="722"]]
288 +[[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
302 302  
303 303  * Humidity:    0x025C/10=60.4%
304 304  
292 +
293 +
305 305  === 2.4.5 Ext # ===
306 306  
307 307  
308 308  Bytes for External Sensor:
309 309  
310 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:425px" %)
311 -|=(% style="width: 102px; background-color:#D9E2F3;color:#0070C0" %)**EXT # Value**|=(% style="width: 323px;background-color:#D9E2F3;color:#0070C0" %)**External Sensor Type**
312 -|(% style="width:102px" %)0x01|(% style="width:319px" %)Sensor E3, Temperature Sensor
313 -|(% style="width:102px" %)0x09|(% style="width:319px" %)Sensor E3, Temperature Sensor, Datalog Mod
299 +[[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
314 314  
315 315  
316 316  === 2.4.6 Ext value ===
... ... @@ -318,7 +318,7 @@
318 318  ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
319 319  
320 320  
321 -[[image:image-20220522235639-5.png||_mstalt="432848"]]
307 +[[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
322 322  
323 323  
324 324  * DS18B20 temp=0x0ADD/100=27.81℃
... ... @@ -327,21 +327,16 @@
327 327  
328 328  
329 329  
330 -[[image:image-20220522235639-6.png||_mstalt="433212"]]
316 +[[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
331 331  
332 332  
333 333  * External temperature= (0xF54F-65536)/100=-27.37℃
334 334  
335 -F54F :  (F54F & 8000 == 1) , temp = (F54F - 65536)/100 = 27.37℃
336 -
337 -（0105 & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
338 -
339 339  The last 2 bytes of data are meaningless
340 340  
341 341  If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
342 342  
343 343  
344 -
345 345  ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
346 346  
347 347  
... ... @@ -349,19 +349,22 @@
349 349  Timestamp mode is designed for LHT65N with E3 probe, it will send the uplink payload with Unix timestamp. With the limitation of 11 bytes (max distance of AU915/US915/AS923 band), the time stamp mode will be lack of BAT voltage field, instead, it shows the battery status. The payload is as below:
350 350  )))
351 351  
333 +(((
334 +
335 +)))
352 352  
353 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
354 -|=(% style="width: 50px;background-color:#D9E2F3" %)(((
337 +(% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:480px" %)
338 +|=(% style="width: 50px;" %)(((
355 355  **Size(bytes)**
356 -)))|=(% style="width: 70px;background-color:#D9E2F3" %)(((
340 +)))|=(% style="width: 70px;" %)(((
357 357  **2**
358 -)))|=(% style="width: 120px;background-color:#D9E2F3" %)(((
342 +)))|=(% style="width: 120px;" %)(((
359 359  **2**
360 -)))|=(% style="width: 120px;background-color:#D9E2F3" %)(((
344 +)))|=(% style="width: 120px;" %)(((
361 361  **2**
362 -)))|=(% style="width: 50px;background-color:#D9E2F3" %)(((
346 +)))|=(% style="width: 50px;" %)(((
363 363  **1**
364 -)))|=(% style="width: 70px;background-color:#D9E2F3" %)(((
348 +)))|=(% style="width: 70px;" %)(((
365 365  **4**
366 366  )))
367 367  |(% style="width:110px" %)(((
... ... @@ -380,8 +380,8 @@
380 380  
381 381  * **Battery status & Built-in Humidity**
382 382  
383 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:461px" %)
384 -|=(% style="width: 69px;background-color:#D9E2F3;color:#0070C0" %)Bit(bit)|=(% style="width: 258px;background-color:#D9E2F3;color:#0070C0" %)[15:14]|=(% style="width: 134px;background-color:#D9E2F3;color:#0070C0" %)[11:0]
367 +(% _mstvisible="1" border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:461px" %)
368 +|=(% style="width: 67px;" %)Bit(bit)|=(% style="width: 256px;" %)[15:14]|=(% style="width: 132px;" %)[11:0]
385 385  |(% style="width:67px" %)Value|(% style="width:256px" %)(((
386 386  BAT Status
387 387  00(b): Ultra Low ( BAT <= 2.50v)
... ... @@ -394,8 +394,8 @@
394 394  
395 395  * **Status & Ext Byte**
396 396  
397 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
398 -|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**Bits**|(% style="width:90px;background-color:#D9E2F3;color:#0070C0" %)**7**|(% style="width:100px;background-color:#D9E2F3;color:#0070C0" %)**6**|(% style="width:90px;background-color:#D9E2F3;color:#0070C0" %)**5**|(% style="width:100px;background-color:#D9E2F3;color:#0070C0" %)**4**|(% style="width:60px;background-color:#D9E2F3;color:#0070C0" %)**[3:0]**
381 +(% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:500px" %)
382 +|=(% scope="row" 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]**
399 399  |=(% 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)
400 400  
401 401  * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
... ... @@ -402,6 +402,8 @@
402 402  * (% 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.
403 403  * (% 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)
404 404  
389 +
390 +
405 405  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
406 406  
407 407  
... ... @@ -411,7 +411,7 @@
411 411  
412 412  (% style="color:blue" %)**sensor by setting:**
413 413  
414 -**AT+EXT=6,timeout**  (% style="color:red" %)**Time to power this sensor, from 0 ~~ 65535ms**
400 +**AT+EXT=6,timeout**  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)**Time to power this sensor, from 0 ~~ 65535ms**
415 415  
416 416  **For example:**
417 417  
... ... @@ -424,12 +424,12 @@
424 424  
425 425  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.
426 426  
427 -[[image:image-20220628150112-1.png||_mstalt="427414" height="241" width="285"]]
413 +[[image:image-20220628150112-1.png||height="241" width="285"]]
428 428  
429 429  
430 430  When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
431 431  
432 -[[image:image-20220628150714-4.png||_mstalt="431054"]]
418 +[[image:image-20220628150714-4.png]]
433 433  
434 434  
435 435  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.
... ... @@ -437,29 +437,28 @@
437 437  
438 438  1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
439 439  
440 -[[image:image-20220628151005-5.png||_mstalt="429546"]]
426 +[[image:image-20220628151005-5.png]]
441 441  
442 442  
443 443  2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
444 444  
445 -[[image:image-20220628151056-6.png||_mstalt="431873"]]
431 +[[image:image-20220628151056-6.png]]
446 446  
447 447  
448 448  3) Within range
449 449  
450 -[[image:image-20220628151143-7.png||_mstalt="431210"]]
436 +[[image:image-20220628151143-7.png]]
451 451  
452 452  
453 -
454 454  ==== 2.4.6.4 Ext~=2 TMP117 Sensor （Since Firmware v1.3） ====
455 455  
456 456  
457 -[[image:image-20220927095645-1.png||_mstalt="433771" height="534" width="460"]]
442 +[[image:image-20220927095645-1.png||height="534" width="460"]]
458 458  
459 459  
460 460  (% style="color:blue" %)**Ext=2,Temperature Sensor(TMP117)：**
461 461  
462 -[[image:image-20220906102307-7.png||_mstalt="430443"]]
447 +[[image:image-20220906102307-7.png]]
463 463  
464 464  
465 465  (% style="color:blue" %)**Interrupt Mode and Counting Mode:**
... ... @@ -467,7 +467,6 @@
467 467  The external cable NE2 can be use for MOD4 and MOD8
468 468  
469 469  
470 -
471 471  ==== 2.4.6.5 Ext~=4 Interrupt Mode （Since Firmware v1.3） ====
472 472  
473 473  
... ... @@ -482,7 +482,7 @@
482 482  
483 483   In Close state, the power consumption will be 3uA higher than normal.
484 484  
485 -[[image:image-20220906100852-1.png||_mstalt="429156" height="205" width="377"]]
469 +[[image:image-20220906100852-1.png||height="205" width="377"]]
486 486  
487 487  
488 488  Ext=4,Interrupt Sensor：
... ... @@ -506,15 +506,14 @@
506 506  
507 507  Trigger by falling edge:
508 508  
509 -[[image:image-20220906101145-2.png||_mstalt="428324"]]
493 +[[image:image-20220906101145-2.png]]
510 510  
511 511  
512 512  Trigger by raising edge：
513 513  
514 -[[image:image-20220906101145-3.png||_mstalt="428688"]]
498 +[[image:image-20220906101145-3.png]]
515 515  
516 516  
517 -
518 518  ==== 2.4.6.6 Ext~=8 Counting Mode（Since Firmware v1.3） ====
519 519  
520 520  
... ... @@ -523,12 +523,12 @@
523 523  
524 524  (% style="color:blue" %)**Case 1**(%%):  Low power consumption Flow Sensor, such flow sensor has pulse output and the power consumption in uA level and can be powered by LHT65N.
525 525  
526 -[[image:image-20220906101320-4.png||_mstalt="427336" height="366" width="698"]]
509 +[[image:image-20220906101320-4.png||height="366" width="698"]]
527 527  
528 528  
529 529  (% style="color:blue" %)**Case 2**(%%):  Normal Flow Sensor: Such flow sensor has higher power consumption and is not suitable to be powered by LHT65N. It is powered by external power and output <3.3v pulse
530 530  
531 -[[image:image-20220906101320-5.png||_mstalt="427700" height="353" width="696"]]
514 +[[image:image-20220906101320-5.png||height="353" width="696"]]
532 532  
533 533  
534 534  Ext=8, Counting Sensor ( 4 bytes)：
... ... @@ -550,7 +550,7 @@
550 550  Sent current count to 60
551 551  )))
552 552  
553 -[[image:image-20220906101320-6.png||_mstalt="428064"]]
536 +[[image:image-20220906101320-6.png]]
554 554  
555 555  
556 556  (% style="color:blue" %)**A2 downlink Command：**
... ... @@ -594,7 +594,7 @@
594 594  )))
595 595  
596 596  
597 -[[image:image-20220523000825-7.png||_mstalt="429884" height="262" width="583"]]
580 +[[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
598 598  
599 599  
600 600  
... ... @@ -601,16 +601,16 @@
601 601  Select default key as Access Key:
602 602  
603 603  
604 -[[image:image-20220523000825-8.png||_mstalt="430248" height="453" width="406"]]
587 +[[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
605 605  
606 606  
607 -In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
590 +In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
608 608  
609 609  
610 -[[image:image-20220523000825-9.png||_mstalt="430612" height="366" width="392"]]
593 +[[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
611 611  
612 612  
613 -[[image:image-20220523000825-10.png||_mstalt="450619" height="413" width="728"]]
596 +[[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
614 614  
615 615  
616 616  == 2.6 Datalog Feature ==
... ... @@ -640,7 +640,7 @@
640 640  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
641 641  
642 642  
643 -[[image:image-20220703111700-2.png||_mstalt="426244" height="381" width="1119"]]
626 +[[image:image-20220703111700-2.png||height="381" width="1119"]]
644 644  
645 645  
646 646  === 2.6.2 Unix TimeStamp ===
... ... @@ -649,15 +649,15 @@
649 649  LHT65N uses Unix TimeStamp format based on
650 650  
651 651  
652 -[[image:image-20220523001219-11.png||_mstalt="450450" height="97" width="627"]]
635 +[[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
653 653  
654 654  
655 655  
656 -User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
639 +User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
657 657  
658 658  Below is the converter example
659 659  
660 -[[image:image-20220523001219-12.png||_mstalt="450827" height="298" width="720"]]
643 +[[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
661 661  
662 662  
663 663  So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
... ... @@ -687,6 +687,7 @@
687 687  )))
688 688  
689 689  
673 +
690 690  (((
691 691  **2. Manually Set Time**
692 692  )))
... ... @@ -701,14 +701,14 @@
701 701  
702 702  User can poll sensor value based on timestamps from the server. Below is the downlink command.
703 703  
704 -[[image:image-20220523152302-15.png||_mstalt="451581"]]
688 +[[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
705 705  
706 706  
707 707  Timestamp start and Timestamp end use Unix TimeStamp format as mentioned above. Devices will reply with all data log during this time period, use the uplink interval.
708 708  
709 -For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(%%)
693 +For example, downlink command **31 5FC5F350 5FC6 0160 05**
710 710  
711 -Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00's data
695 +Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
712 712  
713 713  Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
714 714  
... ... @@ -728,7 +728,7 @@
728 728  
729 729  **Poll message flag & Ext:**
730 730  
731 -[[image:image-20221006192726-1.png||_mstalt="430508" height="112" width="754"]]
715 +[[image:image-20221006192726-1.png||height="112" width="754"]]
732 732  
733 733  (% style="color:blue" %)**No ACK Message**(%%):  1: This message means this payload is fromn Uplink Message which doesn't get ACK from the server before ( for [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]] feature)
734 734  
... ... @@ -755,7 +755,7 @@
755 755  
756 756  If LHT65N has below data inside Flash:
757 757  
758 -[[image:image-20220523144455-1.png||_mstalt="430040" height="335" width="735"]]
742 +[[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
759 759  
760 760  
761 761  If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
... ... @@ -767,7 +767,7 @@
767 767  
768 768  **LHT65N will uplink this payload.**
769 769  
770 -[[image:image-20220523001219-13.png||_mstalt="451204" height="421" style="text-align:left" width="727"]]
754 +[[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
771 771  
772 772  
773 773  __**7FFF089801464160065F97**__ **__7FFF__ __088E__ __014B__ __41__ __60066009__** 7FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
... ... @@ -812,7 +812,7 @@
812 812  
813 813  **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
814 814  
815 -(% _mstmutation="1" %)**AT+ARTEMP=？ **(%%):  Gets the alarm range of the internal temperature sensor(% style="display:none" %)
799 +**AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
816 816  
817 817  **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
818 818  
... ... @@ -880,18 +880,17 @@
880 880  temperature fluctuation=05
881 881  
882 882  
883 -**Sampling multiple times and uplink together**
867 +==== **Sampling multiple times and uplink together** ====
884 884  
885 885  **AT+WMOD=3,1,60,20,-16,32,1**   
886 886  
887 887  Explain:
888 888  
889 -* (% style="color:#037691" %)**parameter1:**(%%)Set Working Mode to **Mode 3**
890 -* (% style="color:#037691" %)**parameter2:**(%%) Set the temperature sampling mode to** 1**(1:DS18B20;2:TMP117;3:** **Internal GXHT30).
891 -* (% style="color:#037691" %)**parameter3:**(%%)Sampling Interval is **60**s.
892 -* (% style="color:#037691" %)**parameter4:**(%%)When there is **20** sampling dats, Device will send these data via one uplink. (max value is 60, means max 60 sampling in one uplink)
893 -* (% style="color:#037691" %)**parameter5 & parameter6:**(%%)Temperature alarm range is **-16** to **32**°C,
894 -* (% style="color:#037691" %)**parameter7:**(%%) 1 to enable temperature alarm, **0** to disable the temperature alarm. If alarm is enabled, a data will be sent immediately  if temperate exceeds the Alarm range.
873 +* Set Working Mode to **Mode 3**
874 +* Sampling Interval is **60**s.
875 +* When there is **20** sampling dats, Device will send these data via one uplink. (max value is 60, means max 60 sampling in one uplink)
876 +* Temperature alarm range is **-16** to **32**°C,
877 +* **1** to enable temperature alarm, **0** to disable the temperature alarm. If alarm is enabled, a data will be sent immediately  if temperate exceeds the Alarm range.
895 895  
896 896  (% style="color:#4f81bd" %)**Downlink Command:**
897 897  
... ... @@ -899,7 +899,7 @@
899 899  
900 900  MOD=03
901 901  
902 -TEMP=DS18B20
885 +EXT=01
903 903  
904 904  CITEMP=003C(S)
905 905  
... ... @@ -911,6 +911,7 @@
911 911  
912 912  ARTEMP=01
913 913  
897 +
914 914  **Uplink payload( Fport=3)**
915 915  
916 916  **Example: CBEA**01**0992**//0A41//**09C4**
... ... @@ -917,7 +917,7 @@
917 917  
918 918  BatV=CBEA
919 919  
920 -TEMP=DS18B20
904 +EXT=01
921 921  
922 922  Temp1=0992  ~/~/ 24.50℃
923 923  
... ... @@ -925,9 +925,10 @@
925 925  
926 926  Temp3=09C4  ~/~/ 25.00℃
927 927  
912 +
928 928  (% style="color:red" %)**Note: This uplink will automatically select the appropriate DR according to the data length**
929 929  
930 -(% style="color:red" %)** In this mode, the temperature resolution of ds18b20 is 0.25℃ to save power consumption**
915 +(% style="color:red" %)** In this mode, the temperature resolution of ds18b20 is 0.25℃ to save power consumption**
931 931  )))
932 932  
933 933  
... ... @@ -934,7 +934,7 @@
934 934  === 2.7.2 ALARM MODE ( Before v1.3.1 firmware) ===
935 935  
936 936  
937 -(% class="box infomessage" %)
922 +(% _mstvisible="1" class="box infomessage" %)
938 938  (((
939 939  (((
940 940  **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
... ... @@ -949,7 +949,7 @@
949 949  )))
950 950  
951 951  (((
952 -(% _mstmutation="1" %)**AT+ARTEMP=？ **(%%):  Gets the alarm range of the internal temperature sensor(% style="display:none" %)
937 +**AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
953 953  )))
954 954  
955 955  (((
... ... @@ -986,10 +986,13 @@
986 986  * RED LED when external sensor is not connected
987 987  * For each success downlink, the PURPLE LED will blink once
988 988  
974 +
975 +
989 989  == 2.9 installation ==
990 990  
991 991  
992 -[[image:image-20220516231650-1.png||_mstalt="428597" height="436" width="428"]]
979 +(% _mstvisible="1" %)
980 +[[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
993 993  
994 994  
995 995  = 3. Sensors and Accessories =
... ... @@ -997,7 +997,7 @@
997 997  == 3.1 E2 Extension Cable ==
998 998  
999 999  
1000 -[[image:image-20220619092222-1.png||_mstalt="429533" height="182" width="188"]][[image:image-20220619092313-2.png||_mstalt="430222" height="182" width="173"]]
988 +[[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1001 1001  
1002 1002  
1003 1003  **1m long breakout cable for LHT65N. Features:**
... ... @@ -1021,13 +1021,13 @@
1021 1021  
1022 1022  )))
1023 1023  
1024 -[[image:image-20220619092421-3.png||_mstalt="430547" height="371" width="529"]]
1012 +[[image:image-20220619092421-3.png||height="371" width="529"]]
1025 1025  
1026 1026  
1027 1027  == 3.2 E3 Temperature Probe ==
1028 1028  
1029 1029  
1030 -[[image:image-20220515080154-4.png||_mstalt="434681" alt="photo-20220515080154-4.png" height="182" width="161"]] [[image:image-20220515080330-5.png||_mstalt="428792" height="201" width="195"]]
1018 +[[image:image-20220515080154-4.png||_mstalt="434681" _mstvisible="3" alt="photo-20220515080154-4.png" height="182" width="161"]] [[image:image-20220515080330-5.png||_mstalt="428792" _mstvisible="3" height="201" width="195"]]
1031 1031  
1032 1032  
1033 1033  Temperature sensor with 2 meters cable long
... ... @@ -1038,6 +1038,8 @@
1038 1038  * Operating Range: -40 ~~ 125 °C
1039 1039  * Working voltage 2.35v ~~ 5v
1040 1040  
1029 +
1030 +
1041 1041  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1042 1042  
1043 1043  
... ... @@ -1093,7 +1093,7 @@
1093 1093  
1094 1094  (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1095 1095  
1096 -[[image:image-20220523150701-2.png||_mstalt="427453"]]
1086 +[[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1097 1097  
1098 1098  
1099 1099  (% style="color:#4f81bd" %)**Downlink Command: 0x01**
... ... @@ -1106,6 +1106,8 @@
1106 1106  
1107 1107  * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
1108 1108  
1099 +
1100 +
1109 1109  == 4.2 Set External Sensor Mode ==
1110 1110  
1111 1111  
... ... @@ -1114,7 +1114,7 @@
1114 1114  
1115 1115  (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1116 1116  
1117 -[[image:image-20220523150759-3.png||_mstalt="432146"]]
1109 +[[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1118 1118  
1119 1119  
1120 1120  (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
... ... @@ -1129,6 +1129,8 @@
1129 1129  
1130 1130  * 0xA20702003c: Same as AT+SETCNT=60
1131 1131  
1124 +
1125 +
1132 1132  == 4.3 Enable/Disable uplink Temperature probe ID ==
1133 1133  
1134 1134  
... ... @@ -1151,7 +1151,7 @@
1151 1151  
1152 1152  (% style="color:#4f81bd" %)**AT Command:**
1153 1153  
1154 -[[image:image-20220523150928-4.png||_mstalt="431821"]]
1148 +[[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1155 1155  
1156 1156  
1157 1157  (% style="color:#4f81bd" %)**Downlink Command:**
... ... @@ -1159,6 +1159,8 @@
1159 1159  * **0xA800**  **~-~->** AT+PID=0
1160 1160  * **0xA801**     **~-~->** AT+PID=1
1161 1161  
1156 +
1157 +
1162 1162  == 4.4 Set Password ==
1163 1163  
1164 1164  
... ... @@ -1167,7 +1167,7 @@
1167 1167  
1168 1168  (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1169 1169  
1170 -[[image:image-20220523151052-5.png||_mstalt="428623"]]
1166 +[[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1171 1171  
1172 1172  
1173 1173  (% style="color:#4f81bd" %)**Downlink Command:**
... ... @@ -1183,7 +1183,7 @@
1183 1183  
1184 1184  (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1185 1185  
1186 -[[image:image-20220523151132-6.png||_mstalt="428649"]]
1182 +[[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1187 1187  
1188 1188  
1189 1189  (% style="color:#4f81bd" %)**Downlink Command:**
... ... @@ -1199,15 +1199,17 @@
1199 1199  * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1200 1200  * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1201 1201  
1202 -(% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1198 +(% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1203 1203  
1204 -[[image:image-20220523151218-7.png||_mstalt="430703"]]
1200 +[[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1205 1205  
1206 1206  
1207 -(% style="color:#4f81bd" %)**Downlink Command:**
1203 +(% _msthash="315252" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1208 1208  
1209 1209  * There is no downlink command to set to Sleep mode.
1210 1210  
1207 +
1208 +
1211 1211  == 4.7 Set system time ==
1212 1212  
1213 1213  
... ... @@ -1214,12 +1214,12 @@
1214 1214  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1215 1215  
1216 1216  
1217 -(% style="color:#4f81bd" %)**AT Command:**
1215 +(% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1218 1218  
1219 -[[image:image-20220523151253-8.png||_mstalt="430677"]]
1217 +[[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1220 1220  
1221 1221  
1222 -(% style="color:#4f81bd" %)**Downlink Command:**
1220 +(% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1223 1223  
1224 1224  0x306007806000  ~/~/  Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1225 1225  
... ... @@ -1237,9 +1237,9 @@
1237 1237  
1238 1238  )))
1239 1239  
1240 -(% style="color:#4f81bd" %)**AT Command:**
1238 +(% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1241 1241  
1242 -[[image:image-20220523151336-9.png||_mstalt="431717"]]
1240 +[[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1243 1243  
1244 1244  
1245 1245  (% style="color:#4f81bd" %)**Downlink Command:**
... ... @@ -1254,12 +1254,12 @@
1254 1254  Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1255 1255  
1256 1256  
1257 -(% style="color:#4f81bd" %)**AT Command:**
1255 +(% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1258 1258  
1259 -[[image:image-20220523151411-10.png||_mstalt="449696"]]
1257 +[[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1260 1260  
1261 1261  
1262 -(% style="color:#4f81bd" %)**Downlink Command:**
1260 +(% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1263 1263  
1264 1264  **0x29 0A**  ~/~/ Same as AT+SYNCTDC=0x0A
1265 1265  
... ... @@ -1270,12 +1270,12 @@
1270 1270  Feature: Print the sector data from start page to stop page (max is 416 pages).
1271 1271  
1272 1272  
1273 -(% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1271 +(% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1274 1274  
1275 -[[image:image-20220523151450-11.png||_mstalt="451035"]]
1273 +[[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1276 1276  
1277 1277  
1278 -(% style="color:#4f81bd" %)**Downlink Command:**
1276 +(% _msthash="315259" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1279 1279  
1280 1280  No downlink commands for feature
1281 1281  
... ... @@ -1286,12 +1286,12 @@
1286 1286  Feature: Print the last few data entries
1287 1287  
1288 1288  
1289 -(% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1287 +(% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1290 1290  
1291 -[[image:image-20220523151524-12.png||_mstalt="452101"]]
1289 +[[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1292 1292  
1293 1293  
1294 -(% style="color:#4f81bd" %)**Downlink Command:**
1292 +(% _msthash="315261" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1295 1295  
1296 1296  No downlink commands for feature
1297 1297  
... ... @@ -1304,7 +1304,7 @@
1304 1304  
1305 1305  (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1306 1306  
1307 -[[image:image-20220523151556-13.png||_mstalt="454129"]]
1305 +[[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1308 1308  
1309 1309  
1310 1310  (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
... ... @@ -1311,6 +1311,8 @@
1311 1311  
1312 1312  * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1313 1313  
1312 +
1313 +
1314 1314  == 4.13 Auto Send None-ACK messages ==
1315 1315  
1316 1316  
... ... @@ -1329,6 +1329,8 @@
1329 1329  
1330 1330  * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1331 1331  
1332 +
1333 +
1332 1332  == 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm（Since firmware 1.3.0） ==
1333 1333  
1334 1334  
... ... @@ -1394,7 +1394,7 @@
1394 1394  The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1395 1395  
1396 1396  
1397 -[[image:image-20220515075034-1.png||_mstalt="428961" height="208" width="644"]]
1399 +[[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1398 1398  )))
1399 1399  
1400 1400  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
... ... @@ -1405,7 +1405,7 @@
1405 1405  
1406 1406  LHT65N has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery. Any brand should be ok.
1407 1407  
1408 -[[image:image-20220515075440-2.png||_mstalt="429546" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" height="193" width="257"]]
1410 +[[image:image-20220515075440-2.png||_mstalt="429546" _mstvisible="3" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" _mstvisible="3" height="193" width="257"]]
1409 1409  
1410 1410  
1411 1411  == 5.3 Battery Life Analyze ==
... ... @@ -1432,7 +1432,7 @@
1432 1432  [[image:image-20220530085651-1.png||_mstalt="429949"]]
1433 1433  
1434 1434  
1435 -**Connection:**
1437 +(% _msthash="506061" _msttexthash="170755" %)**Connection:**
1436 1436  
1437 1437  * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1438 1438  * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
... ... @@ -1448,134 +1448,199 @@
1448 1448  [[image:image-20220530095701-4.png||_mstalt="430014"]]
1449 1449  
1450 1450  
1453 +(% _msthash="506066" _msttexthash="544869" %)
1451 1451  AT Command List is as below:
1452 1452  
1456 +(% _msthash="506067" _msttexthash="361920" %)
1453 1453  AT+<CMD>? :  Help on <CMD>
1454 1454  
1459 +(% _msthash="506068" _msttexthash="243061" %)
1455 1455  AT+<CMD> :  Run <CMD>
1456 1456  
1462 +(% _msthash="506069" _msttexthash="704197" %)
1457 1457  AT+<CMD>=<value> :  Set the value
1458 1458  
1465 +(% _msthash="506070" _msttexthash="455676" %)
1459 1459  AT+<CMD>=? :  Get the value
1460 1460  
1468 +(% _msthash="506071" _msttexthash="670553" %)
1461 1461  AT+DEBUG:  Set more info output
1462 1462  
1471 +(% _msthash="506072" _msttexthash="485888" %)
1463 1463  ATZ:  Trig a reset of the MCU
1464 1464  
1474 +(% _msthash="506073" _msttexthash="2068872" %)
1465 1465  AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1466 1466  
1477 +(% _msthash="506074" _msttexthash="689169" %)
1467 1467  AT+DEUI:  Get or Set the Device EUI
1468 1468  
1480 +(% _msthash="506075" _msttexthash="960414" %)
1469 1469  AT+DADDR:  Get or Set the Device Address
1470 1470  
1483 +(% _msthash="506076" _msttexthash="1079897" %)
1471 1471  AT+APPKEY:  Get or Set the Application Key
1472 1472  
1486 +(% _msthash="506077" _msttexthash="1326143" %)
1473 1473  AT+NWKSKEY:  Get or Set the Network Session Key
1474 1474  
1489 +(% _msthash="506078" _msttexthash="1573000" %)
1475 1475  AT+APPSKEY:  Get or Set the Application Session Key
1476 1476  
1492 +(% _msthash="506079" _msttexthash="1041729" %)
1477 1477  AT+APPEUI:  Get or Set the Application EUI
1478 1478  
1495 +(% _msthash="506080" _msttexthash="2104206" %)
1479 1479  AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1480 1480  
1498 +(% _msthash="506081" _msttexthash="3369288" %)
1481 1481  AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1482 1482  
1501 +(% _msthash="506082" _msttexthash="1894529" %)
1483 1483  AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1484 1484  
1504 +(% _msthash="506083" _msttexthash="3864172" %)
1485 1485  AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1486 1486  
1507 +(% _msthash="506084" _msttexthash="1712204" %)
1487 1487  AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1488 1488  
1510 +(% _msthash="506085" _msttexthash="1281202" %)
1489 1489  AT+RX2FQ:  Get or Set the Rx2 window frequency
1490 1490  
1513 +(% _msthash="506086" _msttexthash="2796781" %)
1491 1491  AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1492 1492  
1516 +(% _msthash="506087" _msttexthash="3285165" %)
1493 1493  AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1494 1494  
1519 +(% _msthash="506088" _msttexthash="3286179" %)
1495 1495  AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1496 1496  
1522 +(% _msthash="506089" _msttexthash="4703803" %)
1497 1497  AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1498 1498  
1525 +(% _msthash="506090" _msttexthash="4704999" %)
1499 1499  AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1500 1500  
1528 +(% _msthash="506091" _msttexthash="1528683" %)
1501 1501  AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1502 1502  
1531 +(% _msthash="506092" _msttexthash="757185" %)
1503 1503  AT+NWKID:  Get or Set the Network ID
1504 1504  
1534 +(% _msthash="506093" _msttexthash="1156597" %)
1505 1505  AT+FCU:  Get or Set the Frame Counter Uplink
1506 1506  
1537 +(% _msthash="506094" _msttexthash="1273987" %)
1507 1507  AT+FCD:  Get or Set the Frame Counter Downlink
1508 1508  
1540 +(% _msthash="506095" _msttexthash="859222" %)
1509 1509  AT+CLASS:  Get or Set the Device Class
1510 1510  
1543 +(% _msthash="506096" _msttexthash="384852" %)
1511 1511  AT+JOIN:  Join network
1512 1512  
1546 +(% _msthash="506097" _msttexthash="548626" %)
1513 1513  AT+NJS:  Get the join status
1514 1514  
1549 +(% _msthash="506098" _msttexthash="2546206" %)
1515 1515  AT+SENDB:  Send hexadecimal data along with the application port
1516 1516  
1552 +(% _msthash="506099" _msttexthash="1932307" %)
1517 1517  AT+SEND:  Send text data along with the application port
1518 1518  
1555 +(% _msthash="506100" _msttexthash="3560557" %)
1519 1519  AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1520 1520  
1558 +(% _msthash="506101" _msttexthash="1429701" %)
1521 1521  AT+RECV:  Print last received data in raw format
1522 1522  
1561 +(% _msthash="506102" _msttexthash="1735981" %)
1523 1523  AT+VER:  Get current image version and Frequency Band
1524 1524  
1564 +(% _msthash="506103" _msttexthash="1189474" %)
1525 1525  AT+CFM:  Get or Set the confirmation mode (0-1)
1526 1526  
1567 +(% _msthash="506104" _msttexthash="1718210" %)
1527 1527  AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1528 1528  
1570 +(% _msthash="506105" _msttexthash="1339403" %)
1529 1529  AT+SNR:  Get the SNR of the last received packet
1530 1530  
1573 +(% _msthash="506106" _msttexthash="1452009" %)
1531 1531  AT+RSSI:  Get the RSSI of the last received packet
1532 1532  
1576 +(% _msthash="506107" _msttexthash="2768142" %)
1533 1533  AT+TDC:  Get or set the application data transmission interval in ms
1534 1534  
1579 +(% _msthash="506108" _msttexthash="1083914" %)
1535 1535  AT+PORT:  Get or set the application port
1536 1536  
1582 +(% _msthash="506109" _msttexthash="622440" %)
1537 1537  AT+DISAT:  Disable AT commands
1538 1538  
1585 +(% _msthash="506110" _msttexthash="868361" %)
1539 1539  AT+PWORD: Set password, max 9 digits
1540 1540  
1588 +(% _msthash="506111" _msttexthash="2210299" %)
1541 1541  AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1542 1542  
1591 +(% _msthash="506112" _msttexthash="2113462" %)
1543 1543  AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1544 1544  
1594 +(% _msthash="506113" _msttexthash="2087423" %)
1545 1545  AT+PDTA:  Print the sector data from start page to stop page
1546 1546  
1597 +(% _msthash="506114" _msttexthash="1063127" %)
1547 1547  AT+PLDTA:  Print the last few sets of data
1548 1548  
1600 +(% _msthash="506115" _msttexthash="1999426" %)
1549 1549  AT+CLRDTA:  Clear the storage, record position back to 1st
1550 1550  
1603 +(% _msthash="506116" _msttexthash="442130" %)
1551 1551  AT+SLEEP:  Set sleep mode
1552 1552  
1606 +(% _msthash="506117" _msttexthash="1080222" %)
1553 1553  AT+EXT:  Get or Set external sensor model
1554 1554  
1609 +(% _msthash="506118" _msttexthash="1309490" %)
1555 1555  AT+BAT:  Get the current battery voltage in mV
1556 1556  
1612 +(% _msthash="506119" _msttexthash="813891" %)
1557 1557  AT+CFG:  Print all configurations
1558 1558  
1615 +(% _msthash="506120" _msttexthash="551707" %)
1559 1559  AT+WMOD:  Get or Set Work Mode
1560 1560  
1618 +(% _msthash="506121" _msttexthash="2631499" %)
1561 1561  AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1562 1562  
1621 +(% _msthash="506122" _msttexthash="3907150" %)
1563 1563  AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1564 1564  
1624 +(% _msthash="506123" _msttexthash="854620" %)
1565 1565  AT+SETCNT:  Set the count at present
1566 1566  
1627 +(% _msthash="506124" _msttexthash="2554877" %)
1567 1567  AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1568 1568  
1630 +(% _msthash="506125" _msttexthash="771849" %)
1569 1569  AT+RPL:  Get or set response level
1570 1570  
1633 +(% _msthash="506126" _msttexthash="1484314" %)
1571 1571  AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1572 1572  
1636 +(% _msthash="506127" _msttexthash="741728" %)
1573 1573  AT+LEAPSEC:  Get or Set Leap Second
1574 1574  
1639 +(% _msthash="506128" _msttexthash="1694017" %)
1575 1575  AT+SYNCMOD:  Get or Set time synchronization method
1576 1576  
1642 +(% _msthash="506129" _msttexthash="2235948" %)
1577 1577  AT+SYNCTDC:  Get or set time synchronization interval in day
1578 1578  
1645 +(% _msthash="506130" _msttexthash="425542" %)
1579 1579  AT+PID:  Get or set the PID
1580 1580  
1581 1581  
... ... @@ -1584,12 +1584,13 @@
1584 1584  
1585 1585  **AT commands：**
1586 1586  
1587 -[[image:image-20220620153708-1.png||_mstalt="429806" height="603" width="723"]]
1654 +[[image:image-20220620153708-1.png||height="603" width="723"]]
1588 1588  
1589 1589  
1590 1590  **Downlink commands:**
1591 1591  
1592 1592  
1660 +
1593 1593  (% style="color:blue" %)**TTN:**
1594 1594  
1595 1595  [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
... ... @@ -1620,15 +1620,15 @@
1620 1620  == 6.3 How to change the uplink interval？ ==
1621 1621  
1622 1622  
1623 -Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
1691 +Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_msthash="506137" _msttexthash="5712018" style="background-color: rgb(255, 255, 255);"]]
1624 1624  
1625 1625  
1626 1626  == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1627 1627  
1628 1628  
1629 -[[image:image-20220615153355-1.png||_mstalt="430222"]]
1697 +[[image:image-20220615153355-1.png]]
1630 1630  
1631 -[[image:1655802313617-381.png||_mstalt="293917"]]
1699 +[[image:1655802313617-381.png]]
1632 1632  
1633 1633  
1634 1634  (((
... ... @@ -1638,37 +1638,38 @@
1638 1638  
1639 1639  Input password and ATZ to activate LHT65N,As shown below:
1640 1640  
1641 -[[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
1709 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1642 1642  
1643 1643  
1644 1644  == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1645 1645  
1646 1646  
1647 -[[image:image-20220615153355-1.png||_mstalt="430222"]]
1715 +[[image:image-20220615153355-1.png]]
1648 1648  
1649 1649  
1650 -(% style="color:blue" %)**Step1**(%%): Install [[TremoProgrammer>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AAAnJD_qGZ42bB52o4UmH9v9a/LHT65N%20Temperature%20%26%20Humidity%20Sensor/tool?dl=0&subfolder_nav_tracking=1]]  first.
1718 +(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1651 1651  
1652 -[[image:image-20220615170542-5.png||_mstalt="430638"]]
1720 +[[image:image-20220615170542-5.png]]
1653 1653  
1654 1654  
1655 1655  
1656 -(% _mstmutation="1" style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1724 +(% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1657 1657  
1726 +(% _msthash="506146" _msttexthash="52173160" %)
1658 1658  First connect the four lines；(% style="display:none" %)
1659 1659  
1660 -[[image:image-20220621170938-1.png||_mstalt="431340" height="413" width="419"]]，(% style="display:none" %)
1729 +[[image:image-20220621170938-1.png||height="413" width="419"]](% _mstvisible="1" %)，(% style="display:none" %)
1661 1661  
1662 1662  
1663 -Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1732 +(% _mstvisible="1" %)Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1664 1664  
1665 -[[image:image-20220621170938-2.png||_mstalt="431704"]]
1734 +[[image:image-20220621170938-2.png]]
1666 1666  
1667 1667  
1668 1668  
1669 1669  (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1670 1670  
1671 -[[image:image-20220615171334-6.png||_mstalt="431028"]]
1740 +[[image:image-20220615171334-6.png]]
1672 1672  
1673 1673  
1674 1674  Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
... ... @@ -1676,7 +1676,7 @@
1676 1676  
1677 1677  When this interface appears, it indicates that the download has been completed.
1678 1678  
1679 -[[image:image-20220620160723-8.png||_mstalt="430703"]]
1748 +[[image:image-20220620160723-8.png]]
1680 1680  
1681 1681  
1682 1682  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
... ... @@ -1685,18 +1685,12 @@
1685 1685  == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1686 1686  
1687 1687  
1688 -[[image:image-20220623110706-1.png||_mstalt="427869"]]
1757 +[[image:image-20220623110706-1.png]]
1689 1689  
1690 1690  
1691 -**UART Port of LHT65N:**
1760 +[[image:image-20220623112117-4.png||height="459" width="343"]]
1692 1692  
1693 -* (% class="mark" %)**PB0: RXD**
1694 -* (% class="mark" %)**PB1: TXD**
1695 -* (% class="mark" %)**GND**
1696 1696  
1697 -[[image:image-20220623112117-4.png||_mstalt="428350" height="459" width="343"]]
1698 -
1699 -
1700 1700  (((
1701 1701  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.
1702 1702  )))
... ... @@ -1704,27 +1704,30 @@
1704 1704  
1705 1705  Input password and ATZ to activate LHT65N,As shown below:
1706 1706  
1707 -[[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
1770 +[[image:image-20220615154519-3.png||height="672" width="807"]]
1708 1708  
1709 1709  
1710 1710  == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1711 1711  
1712 1712  
1713 -[[image:image-20220623110706-1.png||_mstalt="427869"]]
1776 +[[image:image-20220623110706-1.png]]
1714 1714  
1715 1715  
1716 -(% style="color:blue" %)**Step1**(%%): Install [[TremoProgrammer>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AAAnJD_qGZ42bB52o4UmH9v9a/LHT65N%20Temperature%20%26%20Humidity%20Sensor/tool?dl=0&subfolder_nav_tracking=1]]  first.
1779 +(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1717 1717  
1718 -[[image:image-20220615170542-5.png||_mstalt="430638"]]
1781 +[[image:image-20220615170542-5.png]]
1719 1719  
1720 1720  
1721 1721  
1722 -(% _mstmutation="1" style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1785 +(% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1723 1723  
1787 +(% _msthash="506146" _msttexthash="52173160" %)
1724 1724  First connect the four lines；
1725 1725  
1726 -[[image:image-20220623113959-5.png||_mstalt="433485" height="528" width="397"]]
1790 +(% _msthash="506146" _msttexthash="52173160" %)
1791 +[[image:image-20220623113959-5.png||height="528" width="397"]]
1727 1727  
1793 +(% _msthash="506146" _msttexthash="52173160" %)
1728 1728  Connect A8 and GND with Dupont wire for a while and then separate，enter reset mode
1729 1729  
1730 1730  
... ... @@ -1731,7 +1731,7 @@
1731 1731  
1732 1732  (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1733 1733  
1734 -[[image:image-20220615171334-6.png||_mstalt="431028"]]
1800 +[[image:image-20220615171334-6.png]]
1735 1735  
1736 1736  
1737 1737  Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
... ... @@ -1739,40 +1739,34 @@
1739 1739  
1740 1740  When this interface appears, it indicates that the download has been completed.
1741 1741  
1742 -[[image:image-20220620160723-8.png||_mstalt="430703"]]
1808 +[[image:image-20220620160723-8.png]]
1743 1743  
1744 1744  
1745 1745  Finally,Disconnect 3.3v，Connect A8 and GND with Dupont wire for a while and then separate，exit reset mode
1746 1746  
1747 1747  
1748 -== 6.8 Why can't I see the datalog information ==
1749 -
1750 -
1751 -~1. The time is not aligned, and the correct query command is not used.
1752 -
1753 -2. Decoder error, did not parse the datalog data, the data was filtered.
1754 -
1755 -
1756 1756  = 7. Order Info =
1757 1757  
1758 1758  
1759 -Part Number: (% style="color:#4f81bd" %)** LHT65N-XX-YY**
1817 +Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1760 1760  
1761 1761  (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1762 1762  
1763 -* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1764 -* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1765 -* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1766 -* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1767 -* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1768 -* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**US915**(%%): LoRaWAN US915 band
1769 -* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1770 -* (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1821 +* (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1822 +* (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1823 +* (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1824 +* (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1825 +* (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1826 +* (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1827 +* (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1828 +* (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1771 1771  
1772 1772  (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1773 1773  
1774 1774  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1775 1775  
1834 +
1835 +
1776 1776  = 8. Packing Info =
1777 1777  
1778 1778  
... ... @@ -1786,11 +1786,15 @@
1786 1786  * Device Size:  10 x 10 x 3.5 mm
1787 1787  * Device Weight: 120.5g
1788 1788  
1849 +
1850 +
1789 1789  = 9. Reference material =
1790 1790  
1791 1791  
1792 -* [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
1854 +* [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1793 1793  
1856 +
1857 +
1794 1794  = 10. FCC Warning =
1795 1795  
1796 1796  
... ... @@ -1799,3 +1799,6 @@
1799 1799  (1) This device may not cause harmful interference；
1800 1800  
1801 1801  (2) this device must accept any interference received, including interference that may cause undesired operation.
1866 +
1867 +
1868 +
image-20230426083319-1.png
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Content