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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 90.18
edited by Xiaoling
on 2023/07/15 15:53
Change comment: There is no comment for this version
To version 82.4
edited by Xiaoling
on 2023/06/14 16:46
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -35,7 +35,7 @@
35 35  
36 36  Each LDS12-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
37 37  
38 -[[image:image-20230615152941-1.png||height="459" width="800"]]
38 +[[image:image-20230614162334-2.png||height="468" width="800"]]
39 39  
40 40  
41 41  == 1.2 ​Features ==
... ... @@ -54,8 +54,6 @@
54 54  * Downlink to change configure
55 55  * 8500mAh Battery for long term use
56 56  
57 -
58 -
59 59  == 1.3 Specification ==
60 60  
61 61  
... ... @@ -133,7 +133,7 @@
133 133  
134 134  
135 135  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
136 -|=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 225px;background-color:#4F81BD;color:white" %)**Action**
134 +|=(% 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**
137 137  |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
138 138  If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
139 139  Meanwhile, BLE module will be active and user can connect via BLE to configure device.
... ... @@ -164,6 +164,7 @@
164 164  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/WL03A-LB_LoRaWAN_None-Position_Rope_Type_Water_Leak_Controller_User_Manual/WebHome/image-20230613144156-1.png?rev=1.1||alt="image-20230613144156-1.png"]]
165 165  
166 166  
165 +
167 167  == 1.9 Mechanical ==
168 168  
169 169  
... ... @@ -179,6 +179,7 @@
179 179  (% style="color:blue" %)**Probe Mechanical:**
180 180  
181 181  
181 +
182 182  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654827224480-952.png?rev=1.1||alt="1654827224480-952.png"]]
183 183  
184 184  
... ... @@ -198,7 +198,7 @@
198 198  
199 199  The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
200 200  
201 -[[image:image-20230615153004-2.png||height="459" width="800"]](% style="display:none" %)
201 +[[image:image-20230614162359-3.png||height="468" width="800"]](% style="display:none" %)
202 202  
203 203  
204 204  (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from LDS12-LB.
... ... @@ -242,77 +242,9 @@
242 242  After join success, it will start to upload messages to TTN and you can see the messages in the panel.
243 243  
244 244  
245 -== 2.3 ​Uplink Payload ==
245 +== 2.3  ​Uplink Payload ==
246 246  
247 -=== 2.3.1 Device Status, FPORT~=5 ===
248 248  
249 -
250 -Users can use the downlink command(**0x26 01**) to ask LDS12-LB to send device configure detail, include device configure status. LDS12-LB will uplink a payload via FPort=5 to server.
251 -
252 -The Payload format is as below.
253 -
254 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
255 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
256 -**Size(bytes)**
257 -)))|=(% style="width: 100px; background-color: #4F81BD;color:white;" %)**1**|=(% style="width: 100px; background-color: #4F81BD;color:white;" %)**2**|=(% style="background-color: #4F81BD;color:white; width: 100px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 100px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 50px;" %)**2**
258 -|(% style="width:62.5px" %)Value|(% style="width:110px" %)Sensor Model|(% style="width:48px" %)Firmware Version|(% style="width:94px" %)Frequency Band|(% style="width:91px" %)Sub-band|(% style="width:60px" %)BAT
259 -
260 -Example parse in TTNv3
261 -
262 -(% style="color:blue" %)**Sensor Model**(%%): For LDS12-LB, this value is 0x24
263 -
264 -(% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
265 -
266 -(% style="color:blue" %)**Frequency Band**:
267 -
268 -0x01: EU868
269 -
270 -0x02: US915
271 -
272 -0x03: IN865
273 -
274 -0x04: AU915
275 -
276 -0x05: KZ865
277 -
278 -0x06: RU864
279 -
280 -0x07: AS923
281 -
282 -0x08: AS923-1
283 -
284 -0x09: AS923-2
285 -
286 -0x0a: AS923-3
287 -
288 -0x0b: CN470
289 -
290 -0x0c: EU433
291 -
292 -0x0d: KR920
293 -
294 -0x0e: MA869
295 -
296 -(% style="color:blue" %)**Sub-Band**:
297 -
298 -AU915 and US915:value 0x00 ~~ 0x08
299 -
300 -CN470: value 0x0B ~~ 0x0C
301 -
302 -Other Bands: Always 0x00
303 -
304 -(% style="color:blue" %)**Battery Info**:
305 -
306 -Check the battery voltage.
307 -
308 -Ex1: 0x0B45 = 2885mV
309 -
310 -Ex2: 0x0B49 = 2889mV
311 -
312 -
313 -=== 2.3.2 Uplink Payload, FPORT~=2 ===
314 -
315 -
316 316  (((
317 317  LDS12-LB will uplink payload via LoRaWAN with below payload format: 
318 318  )))
... ... @@ -321,22 +321,23 @@
321 321  Uplink payload includes in total 11 bytes.
322 322  )))
323 323  
324 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
325 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
256 +
257 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
258 +|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
326 326  **Size(bytes)**
327 -)))|=(% style="width: 30px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD;color:white; width: 80px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 70px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 70px;" %)**1**
328 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
329 -[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
330 -)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
331 -[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
332 -)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
333 -[[Message Type>>||anchor="HMessageType"]]
260 +)))|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|=(% style="background-color:#d9e2f3; color:#0070c0" %)**2**|=(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|=(% style="background-color:#d9e2f3; color:#0070c0" %)**1**|=(% style="background-color:#d9e2f3; color:#0070c0" %)**1**
261 +|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(% style="width:62.5px" %)(((
262 +[[Temperature DS18B20>>||anchor="H2.3.2A0DS18B20Temperaturesensor"]]
263 +)))|[[Distance>>||anchor="H2.3.3A0Distance"]]|[[Distance signal strength>>||anchor="H2.3.4A0Distancesignalstrength"]]|(((
264 +[[Interrupt flag>>||anchor="H2.3.5A0InterruptPin"]]
265 +)))|[[LiDAR temp>>||anchor="H2.3.6A0LiDARtemp"]]|(((
266 +[[Message Type>>||anchor="H2.3.7A0MessageType"]]
334 334  )))
335 335  
336 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654833689380-972.png?rev=1.1||alt="1654833689380-972.png"]]
269 +[[image:1654833689380-972.png]]
337 337  
338 338  
339 -==== (% style="color:blue" %)**Battery Info**(%%) ====
272 +=== 2.3.1  Battery Info ===
340 340  
341 341  
342 342  Check the battery voltage for LDS12-LB.
... ... @@ -346,7 +346,7 @@
346 346  Ex2: 0x0B49 = 2889mV
347 347  
348 348  
349 -==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
282 +=== 2.3.2  DS18B20 Temperature sensor ===
350 350  
351 351  
352 352  This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
... ... @@ -359,7 +359,7 @@
359 359  If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
360 360  
361 361  
362 -==== (% style="color:blue" %)**Distance**(%%) ====
295 +=== 2.3.3  Distance ===
363 363  
364 364  
365 365  Represents the distance value of the measurement output, the default unit is cm, and the value range parsed as a decimal number is 0-1200. In actual use, when the signal strength value Strength.
... ... @@ -370,7 +370,7 @@
370 370  If the data you get from the register is 0x0B 0xEA, the distance between the sensor and the measured object is 0BEA(H) = 3050 (D)/10 = 305cm.
371 371  
372 372  
373 -==== (% style="color:blue" %)**Distance signal strength**(%%) ====
306 +=== 2.3.4  Distance signal strength ===
374 374  
375 375  
376 376  Refers to the signal strength, the default output value will be between 0-65535. When the distance measurement gear is fixed, the farther the distance measurement is, the lower the signal strength; the lower the target reflectivity, the lower the signal strength. When Strength is greater than 100 and not equal to 65535, the measured value of Dist is considered credible.
... ... @@ -383,12 +383,12 @@
383 383  Customers can judge whether they need to adjust the environment based on the signal strength.
384 384  
385 385  
386 -==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
319 +=== 2.3.5  Interrupt Pin ===
387 387  
388 388  
389 -This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up.
322 +This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.2A0SetInterruptMode"]] for the hardware and software set up.
390 390  
391 -Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]].
324 +Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.6A0Pinmappingandpoweron"]].
392 392  
393 393  **Example:**
394 394  
... ... @@ -397,7 +397,7 @@
397 397  0x01: Interrupt Uplink Packet.
398 398  
399 399  
400 -==== (% style="color:blue" %)**LiDAR temp**(%%) ====
333 +=== 2.3.6  LiDAR temp ===
401 401  
402 402  
403 403  Characterize the internal temperature value of the sensor.
... ... @@ -407,7 +407,7 @@
407 407  If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
408 408  
409 409  
410 -==== (% style="color:blue" %)**Message Type**(%%) ====
343 +=== 2.3.7  Message Type ===
411 411  
412 412  
413 413  (((
... ... @@ -419,18 +419,20 @@
419 419  )))
420 420  
421 421  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
422 -|=(% style="width: 161px;background-color:#4F81BD;color:white" %)**Message Type Code**|=(% style="width: 164px;background-color:#4F81BD;color:white" %)**Description**|=(% style="width: 174px;background-color:#4F81BD;color:white" %)**Payload**
423 -|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)[[Normal Uplink Payload>>||anchor="H2.3200BUplinkPayload"]]
424 -|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)[[Configure Info Payload>>||anchor="H3.ConfigureLDS12-LB"]]
355 +|=(% style="width: 161px;background-color:#D9E2F3;color:#0070C0" %)**Message Type Code**|=(% style="width: 164px;background-color:#D9E2F3;color:#0070C0" %)**Description**|=(% style="width: 174px;background-color:#D9E2F3;color:#0070C0" %)**Payload**
356 +|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)[[Normal Uplink Payload>>||anchor="H2.3A0200BUplinkPayload"]]
357 +|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)[[Configure Info Payload>>||anchor="H4.3A0GetFirmwareVersionInfo"]]
425 425  
426 -=== 2.3.3 Decode payload in The Things Network ===
427 427  
360 +=== 2.3.8  Decode payload in The Things Network ===
428 428  
362 +
429 429  While using TTN network, you can add the payload format to decode the payload.
430 430  
431 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592762713-715.png?rev=1.1||alt="1654592762713-715.png"]]
432 432  
366 +[[image:1654592762713-715.png]]
433 433  
368 +
434 434  (((
435 435  The payload decoder function for TTN is here:
436 436  )))
... ... @@ -440,13 +440,13 @@
440 440  )))
441 441  
442 442  
443 -== 2.4 Uplink Interval ==
378 +== 2.4  Uplink Interval ==
444 444  
445 445  
446 446  The LDS12-LB by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>||anchor="H3.3.1SetTransmitIntervalTime"]]
447 447  
448 448  
449 -== 2.5 ​Show Data in DataCake IoT Server ==
384 +== 2.5  ​Show Data in DataCake IoT Server ==
450 450  
451 451  
452 452  (((
... ... @@ -537,7 +537,7 @@
537 537  Users can poll sensor values based on timestamps. Below is the downlink command.
538 538  
539 539  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
540 -|(% colspan="4" style="background-color:#4f81bd; color:white; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
475 +|(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
541 541  |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
542 542  |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
543 543  
... ... @@ -573,15 +573,16 @@
573 573  
574 574  The LiDAR probe is based on TOF, namely, Time of Flight principle. To be specific, the product emits modulation wave of near infrared ray on a periodic basis, which will be reflected after contacting object. The product obtains the time of flight by measuring round-trip phase difference and then calculates relative range between the product and the detection object, as shown below.
575 575  
576 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831757579-263.png?rev=1.1||alt="1654831757579-263.png"]]
577 577  
512 +[[image:1654831757579-263.png]]
578 578  
514 +
579 579  === 2.8.2 Distance Measurement Characteristics ===
580 580  
581 581  
582 582  With optimization of light path and algorithm, The LiDAR probe has minimized influence from external environment on distance measurement performance. Despite that, the range of distance measurement may still be affected by the environment illumination intensity and the reflectivity of detection object. As shown in below:
583 583  
584 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831774373-275.png?rev=1.1||alt="1654831774373-275.png"]]
520 +[[image:1654831774373-275.png]]
585 585  
586 586  
587 587  (((
... ... @@ -601,20 +601,23 @@
601 601  Vertical Coordinates: Represents the radius of light spot for The LiDAR probe at different distances. The diameter of light spot depends on the FOV of The LiDAR probe (the term of FOV generally refers to the smaller value between the receiving angle and the transmitting angle), which is calculated as follows:
602 602  )))
603 603  
604 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831797521-720.png?rev=1.1||alt="1654831797521-720.png"]]
605 605  
541 +[[image:1654831797521-720.png]]
542 +
543 +
606 606  (((
607 607  In the formula above, d is the diameter of light spot; D is detecting range; β is the value of the receiving angle of The LiDAR probe, 3.6°. Correspondence between the diameter of light spot and detecting range is given in Table below.
608 608  )))
609 609  
610 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831810009-716.png?rev=1.1||alt="1654831810009-716.png"]]
548 +[[image:1654831810009-716.png]]
611 611  
550 +
612 612  (((
613 613  If the light spot reaches two objects with different distances, as shown in Figure 3, the output distance value will be a value between the actual distance values of the two objects. For a high accuracy requirement in practice, the above situation should be noticed to avoid the measurement error.
614 614  )))
615 615  
616 616  
617 -=== 2.8.3 Notice of usage ===
556 +=== 2.8.3 Notice of usage: ===
618 618  
619 619  
620 620  Possible invalid /wrong reading for LiDAR ToF tech:
... ... @@ -624,11 +624,12 @@
624 624  * The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
625 625  * The sensor window is made by Acrylic. Don't touch it with alcohol material. This will destroy the sensor window.
626 626  
566 +
627 627  === 2.8.4  Reflectivity of different objects ===
628 628  
629 629  
630 630  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:379px" %)
631 -|=(% style="width: 54px;background-color:#4F81BD;color:white" %)Item|=(% style="width: 231px;background-color:#4F81BD;color:white" %)Material|=(% style="width: 94px;background-color:#4F81BD;color:white" %)Relectivity
571 +|=(% style="width: 54px;background-color:#D9E2F3;color:#0070C0" %)Item|=(% style="width: 231px;background-color:#D9E2F3;color:#0070C0" %)Material|=(% style="width: 94px;background-color:#D9E2F3;color:#0070C0" %)Relectivity
632 632  |(% style="width:53px" %)1|(% style="width:229px" %)Black foam rubber|(% style="width:93px" %)2.4%
633 633  |(% style="width:53px" %)2|(% style="width:229px" %)Black fabric|(% style="width:93px" %)3%
634 634  |(% style="width:53px" %)3|(% style="width:229px" %)Black rubber|(% style="width:93px" %)4%
... ... @@ -650,6 +650,7 @@
650 650  |(% style="width:53px" %)17|(% style="width:229px" %)stainless steel|(% style="width:93px" %)200%
651 651  |(% style="width:53px" %)18|(% style="width:229px" %)Reflector plate, reflective tape|(% style="width:93px" %)>300%
652 652  
593 +
653 653  = 3. Configure LDS12-LB =
654 654  
655 655  == 3.1 Configure Methods ==
... ... @@ -695,7 +695,7 @@
695 695  )))
696 696  
697 697  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
698 -|=(% style="width: 156px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 137px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
639 +|=(% style="width: 156px;background-color:#D9E2F3; color:#0070c0" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3; color:#0070c0" %)**Function**|=(% style="background-color:#D9E2F3; color:#0070c0" %)**Response**
699 699  |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
700 700  30000
701 701  OK
... ... @@ -738,7 +738,7 @@
738 738  (% style="color:blue" %)**AT Command: AT+INTMOD**
739 739  
740 740  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
741 -|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
682 +|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**
742 742  |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
743 743  0
744 744  OK
... ... @@ -762,33 +762,6 @@
762 762  
763 763  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
764 764  
765 -=== 3.3.3  Set Power Output Duration ===
766 -
767 -Control the output duration 3V3 . Before each sampling, device will
768 -
769 -~1. first enable the power output to external sensor,
770 -
771 -2. keep it on as per duration, read sensor value and construct uplink payload
772 -
773 -3. final, close the power output.
774 -
775 -(% style="color:blue" %)**AT Command: AT+3V3T**
776 -
777 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
778 -|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
779 -|(% style="width:154px" %)AT+3V3T=?|(% style="width:196px" %)Show 3V3 open time.|(% style="width:157px" %)0 (default)
780 -OK
781 -|(% style="width:154px" %)AT+3V3T=1000|(% style="width:196px" %)Close after a delay of 1000 milliseconds.|(% style="width:157px" %)OK
782 -|(% style="width:154px" %)AT+3V3T=0|(% style="width:196px" %)Always turn on the power supply of 3V3 pin.|(% style="width:157px" %)OK
783 -
784 -(% style="color:blue" %)**Downlink Command: 0x07**(%%)
785 -Format: Command Code (0x07) followed by 3 bytes.
786 -
787 -The first byte is 01,the second and third bytes are the time to turn on.
788 -
789 -* Example 1: Downlink Payload: 07 01 00 00  **~-~-->**  AT+3V3T=0
790 -* Example 2: Downlink Payload: 07 01 01 F4  **~-~-->**  AT+3V3T=500
791 -
792 792  = 4. Battery & Power Consumption =
793 793  
794 794  
... ... @@ -809,7 +809,7 @@
809 809  
810 810  * Fix bugs.
811 811  
812 -Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/w1p7ukjrx49e62r/AAB3uCNCt-koYUvMkZUPBRSca?dl=0]]**
726 +Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/ph4uyz0rchflrnw/AADr1f_5Sg30804NItpfOQbla?dl=0]]**
813 813  
814 814  Methods to Update Firmware:
815 815  
... ... @@ -837,11 +837,11 @@
837 837  
838 838  
839 839  (((
840 -(% style="color:blue" %)**Cause ①**(%%)**：**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance. (such as glass and water, etc.)
754 +(% style="color:blue" %)**Cause ①**(%%)**：**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance (such as glass and water, etc.)
841 841  )))
842 842  
843 843  (((
844 -(% style="color:red" %)**Troubleshooting**(%%): Please avoid use of this product under such circumstance in practice.
758 +Troubleshooting: Please avoid use of this product under such circumstance in practice.
845 845  )))
846 846  
847 847  
... ... @@ -850,7 +850,7 @@
850 850  )))
851 851  
852 852  (((
853 -(% style="color:red" %)**Troubleshooting**(%%): please use dry dust-free cloth to gently remove the foreign matter.
767 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
854 854  )))
855 855  
856 856  
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