Changes for page LHT52 - LoRaWAN Temperature & Humidity Sensor User Manual
Last modified by Mengting Qiu on 2024/04/30 14:27
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... ... @@ -6,6 +6,11 @@ 6 6 7 7 8 8 9 + 10 + 11 + 12 + 13 + 9 9 **Table of Contents:** 10 10 11 11 {{toc/}} ... ... @@ -12,6 +12,8 @@ 12 12 13 13 14 14 20 + 21 + 15 15 = 1.Introduction = 16 16 17 17 == 1.1 What is LHT65N Temperature & Humidity Sensor == ... ... @@ -132,11 +132,7 @@ 132 132 133 133 [[image:image-20220515123819-1.png||height="379" width="317"]] 134 134 135 -(% border="1" style="background-color:#ffffcc; color:green; width:739px" %) 136 -|**Behavior on ACT**|**Function**|(% style="width:424px" %)**Action** 137 -|**Pressing ACT between 1s < time < 3s**|Test uplink status|(% style="width:424px" %)If LHT65N is already Joined to the LoRaWAN network, LHT65N will send an uplink packet, if LHT65N has an external sensor connected, blue led will blink once. If LHT65N has no external sensor, red led will blink once. 138 -|**Pressing ACT for more than 3s**|Active Device|(% style="width:424px" %)green led will fast blink 5 times, LHT65N will enter working mode and start to JOIN LoRaWAN network. green led will solid turn on for 5 seconds after join in network. 139 -|**Fast press ACT 5 times**|Deactivate Device|(% style="width:424px" %)red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode. 142 +[[image:image-20220523153201-19.png||height="163" width="739"]] 140 140 141 141 == 2.3 Example to join LoRaWAN network == 142 142 ... ... @@ -190,14 +190,41 @@ 190 190 191 191 After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once. 192 192 196 +(% border="1" style="background-color:#ffffcc; color:green; width:426px" %) 197 +|(% style="width:97px" %)((( 198 +**Size(bytes)** 199 +)))|(% style="width:39px" %)((( 200 +**2** 201 +)))|(% style="width:100px" %)((( 202 +**2** 203 +)))|(% style="width:77px" %)((( 204 +**2** 205 +)))|(% style="width:47px" %)((( 206 +**1** 207 +)))|(% style="width:51px" %)((( 208 +**4** 209 +))) 210 +|(% style="width:97px" %)((( 211 +**Value** 212 +)))|(% style="width:39px" %)((( 213 +[[BAT>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.2BAT-BatteryInfo]] 214 +)))|(% style="width:100px" %)((( 215 +((( 216 +[[Built-In Temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]] 217 +))) 218 +)))|(% style="width:77px" %)((( 219 +((( 220 +[[Built-in>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]] 221 +))) 193 193 194 -(% border="1" style="background-color:#ffffcc; color:green; width:605px" %) 195 -|(% style="width:106px" %)**Size(bytes)**|(% style="width:71px" %)**2**|(% style="width:183px" %)**2**|(% style="width:155.172px" %)**2**|(% style="width:49px" %)**1**|(% style="width:92px" %)**4** 196 -|(% style="width:106px" %)**Value**|(% style="width:71px" %)[[BAT>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.2BAT-BatteryInfo]]|(% style="width:183px" %)((( 197 -[[Built In Temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]] 198 -)))|(% style="width:155.172px" %)((( 199 -[[Built-in Humidity>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]] 200 -)))|(% style="width:49px" %)[[Ext>>path:#Extension_Sensor]] #|(% style="width:92px" %)[[Ext value>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.6Extvalue]] 223 +((( 224 +[[Humidity>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]] 225 +))) 226 +)))|(% style="width:47px" %)((( 227 +[[Ext>>path:#Extension_Sensor]] # 228 +)))|(% style="width:51px" %)((( 229 +[[Ext value>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.6Extvalue]] 230 +))) 201 201 202 202 * The First 6 bytes: has fix meanings for every LHT65N. 203 203 * The 7th byte (EXT #): defines the external sensor model. ... ... @@ -217,20 +217,8 @@ 217 217 218 218 These two bytes of BAT include the battery state and the actually voltage 219 219 220 -(% border="1" style="background-color:#ffffcc; color:green; width:508px" %) 221 -|(% style="width:75px" %)Bit(bit)|(% style="width:268px" %)[15:14]|(% style="width:162px" %)[13:0] 222 -|(% style="width:75px" %)Value|(% style="width:268px" %)((( 223 -BAT Status 250 +[[image:image-20220523152839-18.png]] 224 224 225 -00(b): Ultra Low ( BAT <= 2.50v) 226 - 227 -01(b): Low (2.50v <=BAT <= 2.55v) 228 - 229 -10(b): OK (2.55v <= BAT <=2.65v) 230 - 231 -11(b): Good (BAT >= 2.65v) 232 -)))|(% style="width:162px" %)Actually BAT voltage 233 - 234 234 [[image:image-20220522235639-1.png||height="139" width="727"]] 235 235 236 236 Check the battery voltage for LHT65N. ... ... @@ -258,10 +258,7 @@ 258 258 259 259 Bytes for External Sensor: 260 260 261 -(% border="1" style="background-color:#ffffcc; color:green; width:473px" %) 262 -|(% style="width:139px" %)**EXT # Value**|(% style="width:331px" %)**External Sensor Type** 263 -|(% style="width:139px" %)0x01|(% style="width:331px" %)Sensor E3, Temperature Sensor 264 -|(% style="width:139px" %)0x09|(% style="width:331px" %)Sensor E3, Temperature Sensor, Datalog Mod 279 +[[image:image-20220523152822-17.png]] 265 265 266 266 === 2.4.6 Ext value === 267 267 ... ... @@ -290,30 +290,53 @@ 290 290 291 291 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: 292 292 293 - 294 -(% border="1" style="background-color:#ffffcc; color:green; width:697px" %) 295 -|(% style="width:96px" %)**Size(bytes)**|(% style="width:164px" %)**2**|(% style="width:104px" %)**2**|(% style="width:106px" %)**2**|(% style="width:108px" %)**1**|(% style="width:116px" %)**4** 296 -|(% style="width:96px" %)**Value**|(% style="width:164px" %)[[External temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.2SetExternalSensorMode]]|(% style="width:104px" %)((( 308 +(% border="1" style="background-color:#ffffcc; color:green; width:510px" %) 309 +|(% style="width:96px" %)((( 310 +**Size(bytes)** 311 +)))|(% style="width:71px" %)((( 312 +**2** 313 +)))|(% style="width:99px" %)((( 314 +**2** 315 +)))|(% style="width:132px" %)((( 316 +**2** 317 +)))|(% style="width:54px" %)((( 318 +**1** 319 +)))|(% style="width:64px" %)((( 320 +**4** 321 +))) 322 +|(% style="width:96px" %)((( 323 +**Value** 324 +)))|(% style="width:71px" %)((( 325 +[[External temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.2SetExternalSensorMode]] 326 +)))|(% style="width:99px" %)((( 327 +((( 297 297 [[Built-In>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]] 329 +))) 298 298 331 +((( 299 299 [[Temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]] 300 -)))|(% style="width:106px" %)((( 333 +))) 334 +)))|(% style="width:132px" %)((( 335 +((( 301 301 BAT Status & 337 +))) 302 302 303 -[[Built-in>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]] 304 - 305 -[[Humidity>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]] 306 -)))|(% style="width:108px" %)Status & Ext|(% style="width:116px" %)((( 307 -[[Unix>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.1SetTransmitIntervalTime]] 308 - 309 -[[Time Stamp>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.1SetTransmitIntervalTime]] 339 +((( 340 +[[Built-in Humidity>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]] 310 310 ))) 342 +)))|(% style="width:54px" %)((( 343 +Status & Ext 344 +)))|(% style="width:64px" %)((( 345 +((( 346 +[[Unix Time Stamp>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.1SetTransmitIntervalTime]] 347 +))) 348 +))) 311 311 312 -* **Battery status & **[[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallinkwikiinternallink" %)**Built-in Humidity**>>path:#SHT20_Humidity]]350 +* **Battery status & (% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)Built-in Humidity(%%)** 313 313 314 -(% border="1" style="background-color:#ffffcc; color:green; width: 587px" %)315 -|Bit(bit)|(% style="width:2 80px" %)[15:14]|(% style="width:136px" %)[11:0]316 -|Value|(% style="width:2 80px" %)(((352 +(% border="1" style="background-color:#ffffcc; color:green; width:469px" %) 353 +|(% style="width:65px" %)Bit(bit)|(% style="width:267px" %)[15:14]|(% style="width:134px" %)[11:0] 354 +|(% style="width:65px" %)Value|(% style="width:267px" %)((( 317 317 BAT Status 318 318 319 319 00(b): Ultra Low ( BAT <= 2.50v) ... ... @@ -323,7 +323,7 @@ 323 323 10(b): OK (2.55v <= BAT <=2.65v) 324 324 325 325 11(b): Good (BAT >= 2.65v) 326 -)))|(% style="width:13 6px" %)(((364 +)))|(% style="width:134px" %)((( 327 327 [[Built-in Humidity>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]] 328 328 329 329 ... ... @@ -331,11 +331,7 @@ 331 331 332 332 * **Status & Ext Byte** 333 333 334 -(% border="1" style="background-color:#ffffcc; color:green; width:732px" %) 335 -|(% style="width:128px" %)**Bits**|(% style="width:102px" %)**7**|(% style="width:145px" %)**6**|(% style="width:117px" %)**5**|(% style="width:147px" %)**4**|(% style="width:90px" %)**[3:0]** 336 -|(% style="width:128px" %)**Status & Ext**|(% style="width:102px" %)Not Defined|(% style="width:145px" %)Poll Message Flag|(% style="width:117px" %)Sync time OK|(% style="width:147px" %)Unix Time Request|(% style="width:90px" %)((( 337 -Ext:0b(1001) 338 -))) 372 +[[image:image-20220523152434-16.png]] 339 339 340 340 * Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink. 341 341 * 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. ... ... @@ -345,11 +345,17 @@ 345 345 346 346 Datacake IoT platform provides a human-friendly interface to show the sensor data, once we have sensor data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps: 347 347 382 +((( 348 348 **Step 1**: Be sure that your device is programmed and properly connected to the LoRaWAN network. 384 +))) 349 349 386 +((( 350 350 **Step 2**: Configure your Application to forward data to Datacake you will need to add integration. Go to TTN V3 Console ~-~-> Applications ~-~-> Integrations ~-~-> Add Integrations. 388 +))) 351 351 390 +((( 352 352 Add Datacake: 392 +))) 353 353 354 354 [[image:image-20220523000825-7.png||height="262" width="583"]] 355 355 ... ... @@ -358,16 +358,12 @@ 358 358 359 359 [[image:image-20220523000825-8.png||height="453" width="406"]] 360 360 361 - 362 362 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device. 363 363 364 364 [[image:image-20220523000825-9.png||height="366" width="392"]] 365 365 405 +[[image:image-20220523000825-10.png||height="413" width="728"]] 366 366 367 - 368 -[[image:image-20220523000825-10.png||height="432" width="762"]] 369 - 370 - 371 371 == 2.6 Datalog Feature == 372 372 373 373 This feature is always enabled. When user wants to retrieve the sensor value, he can send a poll command from the IoT platform to ask LHT65N to send the value in the required time slot. ... ... @@ -379,50 +379,73 @@ 379 379 [[image:image-20220523001219-11.png||height="97" width="627"]] 380 380 381 381 418 +((( 382 382 User can get this time from link: [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] : 420 +))) 383 383 422 +((( 384 384 Below is the converter example 424 +))) 385 385 386 -[[image:image-20220523001219-12.png||height=" 302" width="730"]]426 +[[image:image-20220523001219-12.png||height="298" width="720"]] 387 387 388 388 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25 389 389 390 - 391 391 === 2.6.2 Set Device Time === 392 392 432 +((( 393 393 There are two ways to set device’s time: 434 +))) 394 394 436 +((( 395 395 **~1. Through LoRaWAN MAC Command (Default settings)** 438 +))) 396 396 440 +((( 397 397 User need to set SYNCMOD=1 to enable sync time via MAC command. 442 +))) 398 398 444 +((( 399 399 Once LHT65N Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65N. If LHT65N fails to get the time from the server, LHT65N will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days). 446 +))) 400 400 448 +((( 401 401 Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn’t support. If server doesn’t support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1. 450 +))) 402 402 452 +((( 453 + 454 +))) 403 403 456 +((( 404 404 **2. Manually Set Time** 458 +))) 405 405 460 +((( 406 406 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server. 462 +))) 407 407 408 - 409 409 === 2.6.3 Poll sensor value === 410 410 411 411 User can poll sensor value based on timestamps from the server. Below is the downlink command. 412 412 468 +[[image:image-20220523152302-15.png]] 413 413 414 -(% border="1" style="width:454px" %) 415 -|(% style="width:69px" %)1byte|(% style="width:129px" %)4bytes|(% style="width:134px" %)4bytes|(% style="width:119px" %)1byte 416 -|(% style="width:69px" %)31|(% style="width:129px" %)Timestamp start|(% style="width:134px" %)Timestamp end|(% style="width:119px" %)Uplink Interval 417 - 470 +((( 418 418 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. 472 +))) 419 419 474 +((( 475 +For example, downlink command **31 5FC5F350 5FC6 0160 05** 476 +))) 420 420 421 -For example, downlink command 31 5FC5F350 5FC6 0160 05 422 - 478 +((( 423 423 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data 480 +))) 424 424 482 +((( 425 425 Uplink Internal =5s,means LHT65N will send one packet every 5s. range 5~~255s. 484 +))) 426 426 427 427 428 428 === 2.6.4 Datalog Uplink payload === ... ... @@ -429,52 +429,142 @@ 429 429 430 430 The Datalog poll reply uplink will use below payload format. 431 431 491 +((( 492 +**Retrieval data payload** 493 +))) 432 432 433 -Retrieval data payload 495 +(% border="1" style="background-color:#ffffcc; color:green; width:510px" %) 496 +|(% style="width:93px" %)((( 497 +((( 498 +**Size(bytes)** 499 +))) 500 +)))|(% style="width:71px" %)((( 501 +((( 502 +**2** 503 +))) 504 +)))|(% style="width:102px" %)((( 505 +((( 506 +**2** 507 +))) 508 +)))|(% style="width:86px" %)((( 509 +((( 510 +**2** 511 +))) 512 +)))|(% style="width:86px" %)((( 513 +((( 514 +**1** 515 +))) 516 +)))|(% style="width:48px" %)((( 517 +((( 518 +**4** 519 +))) 520 +))) 521 +|(% style="width:93px" %)((( 522 +((( 523 +**Value** 524 +))) 525 +)))|(% style="width:71px" %)((( 526 +((( 527 +[[External sensor data>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.6Extvalue]] 528 +))) 529 +)))|(% style="width:102px" %)((( 530 +((( 531 +((( 532 +[[Built In>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]] 533 +))) 534 +))) 434 434 435 -(% border="1" %) 436 -|**Size(bytes)**|**2**|**2**|**2**|**1**|**4** 437 -|**Value**|[[External sensor data>>path:#Extension_sensor_value]]|((( 438 -[[Built-In>>path:#SHT20_Temperature]] 536 +((( 537 +((( 538 +[[Temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]] 539 +))) 540 +))) 541 +)))|(% style="width:86px" %)((( 542 +((( 543 +((( 544 +[[Built-in>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]] 545 +))) 546 +))) 439 439 440 -[[Temperature>>path:#SHT20_Temperature]] 441 -)))|((( 442 -[[Built-in>>path:#SHT20_Humidity]] 548 +((( 549 +((( 550 +[[Humidity>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]] 551 +))) 552 +))) 553 +)))|(% style="width:86px" %)((( 554 +((( 555 +[[Poll message flag & Ext>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.6.4DatalogUplinkpayload]] 556 +))) 557 +)))|(% style="width:48px" %)((( 558 +((( 559 +((( 560 +[[Unix Time Stamp>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.6.1UnixTimeStamp]] 561 +))) 562 +))) 443 443 444 -[[Humidity>>path:#SHT20_Humidity]] 445 -)))|[[Poll message flag & Ext>>path:#Poll_EXT]]|((( 446 -[[Unix Time Stamp>>path:#Unix_Time_Stamp]] 447 - 564 +((( 565 +((( 448 448 449 449 ))) 568 +))) 569 +))) 450 450 451 -Poll message flag & Ext 571 +**Poll message flag & Ext** 452 452 573 +[[image:image-20220523152208-14.png]] 453 453 454 -(% border="1" %) 455 -|**Bits**|**7**|**6**|**5**|**4**|**[3:0]** 456 -|**Status & Ext**|Not Defined|Poll Message Flag|Sync time OK|Unix Time Request|((( 457 -Ext: 575 +((( 576 +((( 577 +Poll Message Flag: 1: This message is a poll message reply. 578 +))) 579 +))) 458 458 459 -0b(1001) 581 +* ((( 582 +((( 583 +Poll Message Flag is set to 1. 460 460 ))) 585 +))) 586 +* ((( 587 +((( 588 +Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands. 589 +))) 590 +))) 461 461 462 -Poll Message Flag: 1: This message is a poll message reply. 463 - 464 -* Poll Message Flag is set to 1. 465 -* Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands. 466 - 592 +((( 593 +((( 467 467 For example, in US915 band, the max payload for different DR is: 595 +))) 596 +))) 468 468 469 -a) DR0: max is 11 bytes so one entry of data 598 +((( 599 +((( 600 +a) DR0: max is 11 bytes so one entry of data 601 +))) 602 +))) 470 470 471 -b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes) 604 +((( 605 +((( 606 +b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes) 607 +))) 608 +))) 472 472 473 -c) DR2: total payload includes 11 entries of data 610 +((( 611 +((( 612 +c) DR2: total payload includes 11 entries of data 613 +))) 614 +))) 474 474 475 -d) DR3: total payload includes 22 entries of data. 616 +((( 617 +((( 618 +d) DR3: total payload includes 22 entries of data. 619 +))) 620 +))) 476 476 622 +((( 623 +((( 477 477 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0 625 +))) 626 +))) 478 478 479 479 480 480 **Example:** ... ... @@ -481,35 +481,27 @@ 481 481 482 482 If LHT65N has below data inside Flash: 483 483 484 - Flash Addr |Unix Time| Ext | BAT voltage|Value633 +[[image:image-20220523144455-1.png||height="335" width="735"]] 485 485 486 -80196E0 21/1/19 04:27:03 1 3145 sht_temp=22.00 sht_hum=32.6 ds_temp=327.67 635 +((( 636 +If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705 637 +))) 487 487 488 -80196F0 21/1/19 04:28:57 1 3145 sht_temp=21.90 sht_hum=33.1 ds_temp=327.67 489 - 490 -8019700 21/1/19 04:30:30 1 3145 sht_temp=21.81 sht_hum=33.4 ds_temp=327.67 491 - 492 -8019710 21/1/19 04:40:30 1 3145 sht_temp=21.65 sht_hum=33.7 ds_temp=327.67 493 - 494 -8019720 21/1/19 04:50:30 1 3147 sht_temp=21.55 sht_hum=34.1 ds_temp=327.67 495 - 496 -8019730 21/1/19 05:00:30 1 3149 sht_temp=21.50 sht_hum=34.1 ds_temp=327.67 497 - 498 -8019740 21/1/19 05:10:30 1 3149 sht_temp=21.43 sht_hum=34.6 ds_temp=327.67 499 - 500 -8019750 21/1/19 05:20:30 1 3151 sht_temp=21.35 sht_hum=34.9 ds_temp=327.67 501 - 502 - 503 -If user sends below downlink command: 504 - 505 -3160065F9760066DA705 506 - 639 +((( 507 507 Where : Start time: 60065F97 = time 21/1/19 04:27:03 641 +))) 508 508 643 +((( 509 509 Stop time 60066DA7= time 21/1/19 05:27:03 645 +))) 510 510 647 +((( 648 + 649 +))) 511 511 651 +((( 512 512 LHT65N will uplink this payload. 653 +))) 513 513 514 514 [[image:image-20220523001219-13.png||height="421" width="727"]] 515 515 ... ... @@ -529,35 +529,58 @@ 529 529 530 530 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03 531 531 532 - 533 533 == 2.7 Alarm Mode == 534 534 535 535 Alarm mode feature is added since firmware v1.5. When device is in Alarm mode, it will check the built-in sensor temperature in a short interval. If the temperature exceeds the pre-configure range, it will send an uplink immediately. 536 536 677 +((( 678 +(% style="color:red" %)Note: Alarm mode will increase a little big the power consumption, we recommend extending the normal reading time when enabling this feature. 679 +))) 537 537 538 -Note: Alarm mode will increase a little big the power consumption, we recommend extending the normal reading time when enabling this feature. 681 +((( 682 +**AT Commands for Alarm mode:** 683 +))) 539 539 540 - 541 - AT Commands for Alarm mode:542 - 685 +(% class="box infomessage" %) 686 +((( 687 +((( 543 543 **AT+WMOD=1**: Enable/Disable Alarm Mode. (0:Disable, 1: Enable) 689 +))) 690 +))) 544 544 692 +(% class="box infomessage" %) 693 +((( 694 +((( 545 545 **AT+CITEMP=1**: The interval to check the temperature for Alarm. (Unit: minute) 696 +))) 697 +))) 546 546 547 - 548 - 549 549 == 2.8 LED Indicator == 550 550 701 +((( 551 551 The LHT65N has a triple color LED which for easy shows different stage. 703 +))) 552 552 705 +((( 553 553 While pressing ACT button, the LED will work as per LED status with ACT button. 707 +))) 554 554 709 +((( 555 555 In a normal working state: 711 +))) 556 556 557 -* For each uplink, the BLUE LED or RED LED will blink once. 558 -* BLUE LED when an external sensor is connected 559 -* RED LED when an external sensor is not connected 560 -* For each success downlink, the PURPLE LED will blink once 713 +* ((( 714 +For each uplink, the BLUE LED or RED LED will blink once. 715 +))) 716 +* ((( 717 +BLUE LED when an external sensor is connected 718 +))) 719 +* ((( 720 +RED LED when an external sensor is not connected 721 +))) 722 +* ((( 723 +For each success downlink, the PURPLE LED will blink once 724 +))) 561 561 562 562 ---- 563 563 ... ... @@ -583,29 +583,55 @@ 583 583 584 584 = 4. Configure LHT65N via AT Command or LoRaWAN Downlink = 585 585 750 +((( 586 586 Use can configure LHT65N via AT Command or LoRaWAN Downlink. 752 +))) 587 587 588 -* AT Command Connection: See [[FAQ>>path:#AT_COMMAND]]. 589 -* LoRaWAN Downlink instruction for different platforms: 754 +* ((( 755 +AT Command Connection: See [[FAQ>>path:#AT_COMMAND]]. 756 +))) 757 +* ((( 758 +LoRaWAN Downlink instruction for different platforms: 759 +))) 590 590 761 +((( 591 591 [[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#Use_Note_for_Server>>url:http://wiki.dragino.com/index.php?title=Main_Page#Use_Note_for_Server]] 763 +))) 592 592 765 +((( 593 593 There are two kinds of commands to configure LHT65N, they are: 767 +))) 594 594 595 -* **General Commands**. 769 +((( 770 +(% style="color:#4f81bd" %)* **General Commands**. 771 +))) 596 596 773 +((( 597 597 These commands are to configure: 775 +))) 598 598 599 -* General system settings like: uplink interval. 600 -* LoRaWAN protocol & radio-related commands. 777 +* ((( 778 +General system settings like: uplink interval. 779 +))) 780 +* ((( 781 +LoRaWAN protocol & radio-related commands. 782 +))) 601 601 784 +((( 602 602 They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki: 786 +))) 603 603 788 +((( 604 604 [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]] 790 +))) 605 605 606 -* **Commands special design for LHT65N** 792 +((( 793 +(% style="color:#4f81bd" %)* **Commands special design for LHT65N** 794 +))) 607 607 796 +((( 608 608 These commands are only valid for LHT65N, as below: 798 +))) 609 609 610 610 == 4.1 Set Transmit Interval Time == 611 611 ... ... @@ -613,29 +613,26 @@ 613 613 614 614 **AT Command: AT+TDC** 615 615 616 -(% border="1" %) 617 -|**Command Example**|**Function**|**Response** 618 -|AT+TDC?|Show current transmit Interval|((( 619 -30000 806 +[[image:image-20220523150701-2.png]] 620 620 621 -OK 622 - 623 -the interval is 30000ms = 30s 808 +((( 809 +**Downlink Command: 0x01** 624 624 ))) 625 -|AT+TDC=60000|Set Transmit Interval|((( 626 -OK 627 627 628 -Set transmit interval to 60000ms = 60 seconds 812 +((( 813 +Format: Command Code (0x01) followed by 3 bytes time value. 629 629 ))) 630 630 631 -**Downlink Command: 0x01** 632 - 633 -Format: Command Code (0x01) followed by 3 bytes time value. 634 - 816 +((( 635 635 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01. 818 +))) 636 636 637 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds 638 -* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 820 +* ((( 821 +**Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds 822 +))) 823 +* ((( 824 +**Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 825 +))) 639 639 640 640 == 4.2 Set External Sensor Mode == 641 641 ... ... @@ -643,27 +643,29 @@ 643 643 644 644 **AT Command: AT+EXT** 645 645 646 -(% border="1" %) 647 -|**Command Example**|**Function**|**Response** 648 -|AT+EXT?|Get current external sensor mode|((( 649 -1 833 +[[image:image-20220523150759-3.png]] 650 650 651 -OK 652 - 653 -External Sensor mode =1 835 +((( 836 +**Downlink Command: 0xA2** 654 654 ))) 655 -|AT+EXT=1|(% colspan="2" %)Set external sensor mode to 1 656 -|AT+EXT=9|(% colspan="2" %)Set to external DS18B20 with timestamp 657 657 658 -**Downlink Command: 0xA2** 659 - 839 +((( 660 660 Total bytes: 2 ~~ 5 bytes 841 +))) 661 661 662 -Example: 843 +((( 844 +**Example:** 845 +))) 663 663 664 -* 0xA201: Set external sensor type to E1 665 -* 0xA209: Same as AT+EXT=9 666 -* 0xA20702003c,Same as AT+SETCNT=60 847 +* ((( 848 +0xA201: Set external sensor type to E1 849 +))) 850 +* ((( 851 +0xA209: Same as AT+EXT=9 852 +))) 853 +* ((( 854 +0xA20702003c,Same as AT+SETCNT=60 855 +))) 667 667 668 668 == 4.3 Enable/Disable uplink Temperature probe ID == 669 669 ... ... @@ -674,17 +674,14 @@ 674 674 675 675 PID is default set to disable (0) 676 676 677 - 678 678 **AT Command:** 679 679 680 -(% border="1" %) 681 -|**Command Example**|**Function**|**Response** 682 -|AT+PID=1|Enable PID uplink|OK 868 +[[image:image-20220523150928-4.png]] 683 683 684 684 **Downlink Command:** 685 685 686 -* 0xA800 àAT+PID=0687 -* 0xA801 àAT+PID=1872 +* 0xA800 **~-~->** AT+PID=0 873 +* 0xA801 **~-~->** AT+PID=1 688 688 689 689 == 4.4 Set Password == 690 690 ... ... @@ -692,19 +692,15 @@ 692 692 693 693 **AT Command: AT+PWORD** 694 694 695 -(% border="1" %) 696 -|**Command Example**|**Function**|**Response** 697 -|AT+PWORD=?|Show password|((( 698 -123456 881 +[[image:image-20220523151052-5.png]] 699 699 700 - 701 - OK883 +((( 884 +**Downlink Command:** 702 702 ))) 703 -|AT+PWORD=999999|Set password|OK 704 704 705 -**Downlink Command:** 706 - 887 +((( 707 707 No downlink command for this feature. 889 +))) 708 708 709 709 == 4.5 Quit AT Command == 710 710 ... ... @@ -712,15 +712,12 @@ 712 712 713 713 **AT Command: AT+DISAT** 714 714 715 -(% border="1" %) 716 -|**Command Example**|**Function**|**Response** 717 -|AT+DISAT|Quit AT Commands mode|OK 897 +[[image:image-20220523151132-6.png]] 718 718 719 719 **Downlink Command:** 720 720 721 721 No downlink command for this feature. 722 722 723 - 724 724 == 4.6 Set to sleep mode == 725 725 726 726 Feature: Set device to sleep mode ... ... @@ -727,15 +727,8 @@ 727 727 728 728 **AT Command: AT+SLEEP** 729 729 730 -(% border="1" %) 731 -| | | 732 -|**Command Example**|**Function**|**Response** 733 -|AT+SLEEP|Set to sleep mode|((( 734 -Clear all stored sensor data… 909 +[[image:image-20220523151218-7.png]] 735 735 736 -OK 737 -))) 738 - 739 739 **Downlink Command:** 740 740 741 741 * There is no downlink command to set to Sleep mode. ... ... @@ -746,14 +746,8 @@ 746 746 747 747 **AT Command:** 748 748 749 -(% border="1" %) 750 -|**Command Example**|**Function** 751 -|AT+TIMESTAMP=1611104352|((( 752 -OK 921 +[[image:image-20220523151253-8.png]] 753 753 754 -Set System time to 2021-01-20 00:59:12 755 -))) 756 - 757 757 **Downlink Command:** 758 758 759 759 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352 ... ... @@ -760,15 +760,19 @@ 760 760 761 761 == 4.8 Set Time Sync Mode == 762 762 929 +((( 763 763 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command. 931 +))) 764 764 933 +((( 765 765 SYNCMOD is set to 1 by default. If user want to set a different time from LoRaWAN server, user need to set this to 0. 935 +))) 766 766 767 - 937 +((( 768 768 **AT Command:** 939 +))) 769 769 770 -|**Command Example**|**Function** 771 -|AT+SYNCMOD=1|Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq) 941 +[[image:image-20220523151336-9.png]] 772 772 773 773 **Downlink Command:** 774 774 ... ... @@ -782,9 +782,7 @@ 782 782 783 783 **AT Command:** 784 784 785 -(% border="1" %) 786 -|**Command Example**|**Function** 787 -|AT+SYNCTDC=0x0A|Set SYNCTDC to 10 (0x0A), so the sync time is 10 days. 955 +[[image:image-20220523151411-10.png]] 788 788 789 789 **Downlink Command:** 790 790 ... ... @@ -796,51 +796,8 @@ 796 796 797 797 **AT Command: AT+PDTA** 798 798 799 -(% border="1" %) 800 -|**Command Example**|**Response** 801 -|((( 802 -AT+PDTA=1,3 967 +[[image:image-20220523151450-11.png]] 803 803 804 - 805 - 806 -Print page 1 to 3 807 -)))|((( 808 -8019500 19/6/26 16:48 1 2992 sht_temp=28.21 sht_hum=71.5 ds_temp=27.31 809 - 810 -8019510 19/6/26 16:53 1 2994 sht_temp=27.64 sht_hum=69.3 ds_temp=26.93 811 - 812 -8019520 19/6/26 16:58 1 2996 sht_temp=28.39 sht_hum=72.0 ds_temp=27.06 813 - 814 -8019530 19/6/26 17:03 1 2996 sht_temp=27.97 sht_hum=70.4 ds_temp=27.12 815 - 816 -8019540 19/6/26 17:08 1 2996 sht_temp=27.80 sht_hum=72.9 ds_temp=27.06 817 - 818 -8019550 19/6/26 17:13 1 2998 sht_temp=27.30 sht_hum=72.4 ds_temp=26.68 819 - 820 -8019560 19/6/26 17:22 1 2992 sht_temp=26.27 sht_hum=62.3 ds_temp=26.56 821 - 822 -8019570 823 - 824 -8019580 825 - 826 -8019590 827 - 828 -80195A0 829 - 830 -80195B0 831 - 832 -80195C0 833 - 834 -80195D0 835 - 836 -80195E0 837 - 838 -80195F0 839 - 840 - 841 -OK 842 -))) 843 - 844 844 **Downlink Command:** 845 845 846 846 No downlink commands for feature ... ... @@ -851,32 +851,8 @@ 851 851 852 852 **AT Command: AT+PLDTA** 853 853 854 -(% border="1" %) 855 -|**Command Example**|**Response** 856 -|((( 857 -AT+PLDTA=5 979 +[[image:image-20220523151524-12.png]] 858 858 859 - 860 - 861 -Print last 5 entries 862 -)))|((( 863 -Stop Tx and RTP events when read sensor data 864 - 865 -1 19/6/26 13:59 1 3005 sht_temp=27.09 sht_hum=79.5 ds_temp=26.75 866 - 867 -2 19/6/26 14:04 1 3007 sht_temp=26.65 sht_hum=74.8 ds_temp=26.43 868 - 869 -3 19/6/26 14:09 1 3007 sht_temp=26.91 sht_hum=77.9 ds_temp=26.56 870 - 871 -4 19/6/26 14:15 1 3007 sht_temp=26.93 sht_hum=76.7 ds_temp=26.75 872 - 873 -5 19/6/26 14:20 1 3007 sht_temp=26.78 sht_hum=76.6 ds_temp=26.43 874 - 875 -Start Tx and RTP events 876 - 877 -OK 878 -))) 879 - 880 880 **Downlink Command:** 881 881 882 882 No downlink commands for feature ... ... @@ -887,14 +887,8 @@ 887 887 888 888 **AT Command: AT+CLRDTA** 889 889 890 -(% border="1" %) 891 -|**Command Example**|**Function**|**Response** 892 -|AT+CLRDTA|Clear date record|((( 893 -Clear all stored sensor data… 991 +[[image:image-20220523151556-13.png]] 894 894 895 -OK 896 -))) 897 - 898 898 **Downlink Command: 0xA3** 899 899 900 900 * Example: 0xA301 ~/~/Same as AT+CLRDTA ... ... @@ -905,11 +905,15 @@ 905 905 906 906 LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters. 907 907 1003 +((( 908 908 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance. 909 909 [[image:image-20220515075034-1.png||height="208" width="644"]] 1006 +))) 910 910 1008 +((( 911 911 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery. 912 912 1011 +))) 913 913 914 914 == 5.2 Replace Battery == 915 915 ... ... @@ -919,47 +919,97 @@ 919 919 920 920 == 5.3 Battery Life Analyze == 921 921 1021 +((( 922 922 Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life: 923 923 https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf 1024 +))) 924 924 925 925 = 6. Order Info = 926 926 927 -Part Number: (% class="mark" %)**LHT65N-XX** 1028 +((( 1029 +Part Number: (% style="color:#4f81bd" %)** LHT65N-XX-YY** 1030 +))) 928 928 929 -**XX**: The default frequency band 1032 +((( 1033 +(% style="color:#4f81bd" %)**XX **(%%): The default frequency band 1034 +))) 930 930 931 -* **AS923**: LoRaWAN AS923 band 932 -* **AU915**: LoRaWAN AU915 band 933 -* **EU433**: LoRaWAN EU433 band 934 -* **EU868**: LoRaWAN EU868 band 935 -* **KR920**: LoRaWAN KR920 band 936 -* **US915**: LoRaWAN US915 band 937 -* **IN865**: LoRaWAN IN865 band 938 -* **CN470**: LoRaWAN CN470 band 1036 +* ((( 1037 +(% style="color:#4f81bd" %)** AS923**(%%): LoRaWAN AS923 band 1038 +))) 1039 +* ((( 1040 +(% style="color:#4f81bd" %)** AU915**(%%): LoRaWAN AU915 band 1041 +))) 1042 +* ((( 1043 +(% style="color:#4f81bd" %)** EU433**(%%): LoRaWAN EU433 band 1044 +))) 1045 +* ((( 1046 +(% style="color:#4f81bd" %)** EU868**(%%): LoRaWAN EU868 band 1047 +))) 1048 +* ((( 1049 +(% style="color:#4f81bd" %)** KR920**(%%): LoRaWAN KR920 band 1050 +))) 1051 +* ((( 1052 +(% style="color:#4f81bd" %)** US915**(%%): LoRaWAN US915 band 1053 +))) 1054 +* ((( 1055 +(% style="color:#4f81bd" %)** IN865**(%%): LoRaWAN IN865 band 1056 +))) 1057 +* ((( 1058 +(% style="color:#4f81bd" %)** CN470**(%%): LoRaWAN CN470 band 1059 +))) 939 939 940 -**YY**: Sensor Accessories 1061 +((( 1062 +(% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories 1063 +))) 941 941 942 -* **E3**: External Temperature Probe 1065 +* ((( 1066 +(% style="color:#4f81bd" %)**E3**(%%): External Temperature Probe 1067 +))) 943 943 944 944 = 7. Packing Info = 945 945 1071 +((( 946 946 **Package Includes**: 1073 +))) 947 947 948 -* LHT65N Temperature & Humidity Sensor x 1 949 -* Program cable x 1 950 -* Optional external sensor 1075 +* ((( 1076 +LHT65N Temperature & Humidity Sensor x 1 1077 +))) 1078 +* ((( 1079 +Program cable x 1 1080 +))) 1081 +* ((( 1082 +Optional external sensor 1083 +))) 951 951 1085 +((( 952 952 **Dimension and weight**: 1087 +))) 953 953 954 -* Device Size: 13.5 x 7 x 3 cm 955 -* Device Weight: 105g 956 -* Package Size / pcs : 14.5 x 8 x 5 cm 957 -* Weight / pcs : 170g 1089 +* ((( 1090 +Device Size: 13.5 x 7 x 3 cm 1091 +))) 1092 +* ((( 1093 +Device Weight: 105g 1094 +))) 1095 +* ((( 1096 +Package Size / pcs : 14.5 x 8 x 5 cm 1097 +))) 1098 +* ((( 1099 +Weight / pcs : 170g 1100 +))) 958 958 959 959 = 8. FCC Warning = 960 960 1104 +((( 961 961 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions: 1106 +))) 962 962 1108 +((( 963 963 (1) This device may not cause harmful interference; 1110 +))) 964 964 1112 +((( 965 965 (2) this device must accept any interference received, including interference that may cause undesired operation. 1114 +)))
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