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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 139.1
edited by Mengting Qiu
on 2023/12/07 14:51
Change comment: Uploaded new attachment "image-20231207145121-5.png", version {1}
To version 118.14
edited by Xiaoling
on 2023/11/28 14:20
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Summary

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Author
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1 -XWiki.ting
1 +XWiki.Xiaoling
Content
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8 8  
9 9  
10 10  
11 -**Table of Contents:(% style="display:none" %) (%%)**
11 +**Table of Contents：**
12 12  
13 13  {{toc/}}
14 14  
... ... @@ -150,7 +150,7 @@
150 150  
151 151  Example parse in TTNv3
152 152  
153 -[[image:image-20231206151412-3.png||height="179" width="1070"]]
153 +[[image:1701149922873-259.png]]
154 154  
155 155  (% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x21
156 156  
... ... @@ -206,123 +206,222 @@
206 206  === 2.3.2 Uplink Payload, FPORT~=2 ===
207 207  
208 208  
209 -==== (% style="color:red" %)**MOD~=1**(%%) ====
209 +(((
210 +DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
210 210  
211 -Regularly detect distance and report. When the distance exceeds the limit, the alarm flag is set to 1, and the report can be triggered by external interrupts.
212 +periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
212 212  
213 -Uplink Payload totals 10 bytes.
214 +Uplink Payload totals 11 bytes.
215 +)))
214 214  
215 215  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
216 -|(% style="background-color:#4f81bd; color:white; width:60px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:30px" %)**2**|(% style="background-color:#4f81bd; color:white; width:130px" %)**1**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**|(% style="background-color:#4f81bd; color:white; width:100px" %)**1**|(% style="background-color:#4f81bd; color:white; width:120px" %)**4**
217 -|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:176px" %)MOD+ Alarm+Interrupt|(% style="width:74px" %)Distance|(% style="width:100px" %)Sensor State|(% style="width:119px" %)Interrupt Count
218 +|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
219 +**Size(bytes)**
220 +)))|=(% 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**
221 +|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
222 +[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
223 +)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
224 +[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
225 +)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
226 +[[Message Type>>||anchor="HMessageType"]]
227 +)))
218 218  
219 -[[image:image-20231206195704-6.png||height="238" width="999"]]
229 +[[image:image-20230805104104-2.png||height="136" width="754"]]
220 220  
221 -(% style="color:blue" %)**Battery Info:**
222 222  
223 -Check the battery voltage for DS20L
232 +==== (% style="color:blue" %)**Battery Info**(%%) ====
224 224  
225 -Ex1: 0x0E10 = 3600mV
226 226  
235 +Check the battery voltage for DS20L.
227 227  
228 -(% style="color:blue" %)**MOD & Alarm & Interrupt:**
237 +Ex1: 0x0B45 = 2885mV
229 229  
230 -(% style="color:red" %)**MOD:**
239 +Ex2: 0x0B49 = 2889mV
231 231  
232 -**Example: ** (0x60>>6) & 0x3f =1
233 233  
234 -**0x01:**  Regularly detect distance and report.
235 -**0x02: ** Uninterrupted measurement (external power supply).
242 +==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
236 236  
237 -(% style="color:red" %)**Alarm:**
238 238  
239 -When the detection distance exceeds the limit, the alarm flag is set to 1.
245 +This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
240 240  
241 -(% style="color:red" %)**Interrupt:**
242 242  
243 -Whether it is an external interrupt.
248 +**Example**:
244 244  
250 +If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
245 245  
246 -(% style="color:blue" %)**Distance info:**
252 +If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
247 247  
254 +
255 +==== (% style="color:blue" %)**Distance**(%%) ====
256 +
257 +
258 +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.
259 +
260 +
248 248  **Example**:
249 249  
250 -If payload is: 0708H: distance = 0708H = 1800 mm
263 +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.
251 251  
252 252  
253 -(% style="color:blue" %)**Sensor State:**
266 +==== (% style="color:blue" %)**Distance signal strength**(%%) ====
254 254  
255 -Ex1: 0x00: Normal collection distance
256 256  
257 -Ex2 0x0x: Distance collection is wrong
269 +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.
258 258  
259 259  
260 -(% style="color:blue" %)**Interript Count:**
272 +**Example**:
261 261  
262 -If payload is:000007D0H: count = 07D0H =2000
274 +If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
263 263  
276 +Customers can judge whether they need to adjust the environment based on the signal strength.
264 264  
265 265  
266 -==== (% style="color:red" %)**MOD~=2**(%%)** ** ====
279 +**1) When the sensor detects valid data:**
267 267  
268 -Uninterrupted measurement. When the distance exceeds the limit, the output IO is set high and reports are reported every five minutes. The time can be set and powered by an external power supply.Uplink Payload totals 11bytes.
281 +[[image:image-20230805155335-1.png||height="145" width="724"]]
269 269  
283 +
284 +**2) When the sensor detects invalid data:**
285 +
286 +[[image:image-20230805155428-2.png||height="139" width="726"]]
287 +
288 +
289 +**3) When the sensor is not connected:**
290 +
291 +[[image:image-20230805155515-3.png||height="143" width="725"]]
292 +
293 +
294 +==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
295 +
296 +
297 +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.
298 +
299 +Note: The Internet Pin is a separate pin in the screw terminal. See pin mapping of GPIO_EXTI .
300 +
301 +**Example:**
302 +
303 +If byte[0]&0x01=0x00 : Normal uplink packet.
304 +
305 +If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
306 +
307 +
308 +==== (% style="color:blue" %)**LiDAR temp**(%%) ====
309 +
310 +
311 +Characterize the internal temperature value of the sensor.
312 +
313 +**Example: **
314 +If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
315 +If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
316 +
317 +
318 +==== (% style="color:blue" %)**Message Type**(%%) ====
319 +
320 +
321 +(((
322 +For a normal uplink payload, the message type is always 0x01.
323 +)))
324 +
325 +(((
326 +Valid Message Type:
327 +)))
328 +
329 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
330 +|=(% 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**
331 +|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
332 +|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
333 +
334 +[[image:image-20230805150315-4.png||height="233" width="723"]]
335 +
336 +
337 +=== 2.3.3 Historical measuring distance, FPORT~=3 ===
338 +
339 +
340 +DS20L stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
341 +
342 +The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
343 +
270 270  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
271 -|(% style="background-color:#4f81bd; color:white; width:70px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:40px" %)**2**|(% style="background-color:#4f81bd; color:white; width:130px" %)**1**|(% style="background-color:#4f81bd; color:white; width:130px" %)**4**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**
272 -|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:176px" %)MOD+Alarm+Do+Limit flag|(% style="width:74px" %)Distance Limit Alarm count|(% style="width:100px" %)Upper limit|(% style="width:119px" %)Lower limit
345 +|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
346 +**Size(bytes)**
347 +)))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)1|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**1**|=(% 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: 85px;" %)**1**|=(% style="background-color: #4F81BD; color: white; width: 85px;" %)4
348 +|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((
349 +Reserve(0xFF)
350 +)))|Distance|Distance signal strength|(% style="width:88px" %)(((
351 +LiDAR temp
352 +)))|(% style="width:85px" %)Unix TimeStamp
273 273  
274 -[[image:1701155150328-206.png]]
354 +**Interrupt flag & Interrupt level:**
275 275  
276 -(% style="color:blue" %)**MOD & Alarm & Do & Limit flag:**
356 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
357 +|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
358 +**Size(bit)**
359 +)))|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**bit7**|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**bit6**|=(% style="width: 60px;background-color:#4F81BD;color:white" %)**[bit5:bit2]**|=(% style="width: 90px; background-color: #4F81BD; color: white;" %)**bit1**|=(% style="background-color: #4F81BD; color: white; width: 90px;" %)**bit0**
360 +|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)No ACK message|(% style="width:62.5px" %)Poll Message Flag|Reserve|(% style="width:91px" %)Interrupt level|(% style="width:88px" %)(((
361 +Interrupt flag
362 +)))
277 277  
278 -(% style="color:red" %)**MOD:**
364 +* (((
365 +Each data entry is 11 bytes and has the same structure as [[Uplink Payload>>||anchor="H2.3.2UplinkPayload2CFPORT3D2"]], to save airtime and battery, DS20L will send max bytes according to the current DR and Frequency bands.
366 +)))
279 279  
280 -**Example: ** (0x60>>6) & 0x3f =1
368 +For example, in the US915 band, the max payload for different DR is:
281 281  
282 -**0x01:**  Regularly detect distance and report.
283 -**0x02: ** Uninterrupted measurement (external power supply).
370 +**a) DR0:** max is 11 bytes so one entry of data
284 284  
285 -(% style="color:red" %)**Alarm:**
372 +**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
286 286  
287 -When the detection distance exceeds the limit, the alarm flag is set to 1.
374 +**c) DR2:** total payload includes 11 entries of data
288 288  
289 -(% style="color:red" %)**Do:**
376 +**d) DR3:** total payload includes 22 entries of data.
290 290  
291 -When the distance exceeds the set threshold, pull the Do pin high.
378 +If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
292 292  
293 -(% style="color:red" %)**Limit flag:**
294 294  
295 -Mode for setting threshold: **0~~5**
381 +**Downlink:**
296 296  
297 -**0:** does not use upper and lower limits
383 +0x31 64 CC 68 0C 64 CC 69 74 05
298 298  
299 -**1:** Use upper and lower limits
385 +[[image:image-20230805144936-2.png||height="113" width="746"]]
300 300  
301 -**2:** is less than the lower limit value
387 +**Uplink:**
302 302  
303 -**3:** is greater than the lower limit value
389 +43 FF 0E 10 00 B0 1E 64 CC 68 0C 40 FF 0D DE 00 A8 1E 64 CC 68 29 40 FF 09 92 00 D3 1E 64 CC 68 65 40 FF 02 3A 02 BC 1E 64 CC 68 A1 41 FF 0E 1A 00 A4 1E 64 CC 68 C0 40 FF 0D 2A 00 B8 1E 64 CC 68 E8 40 FF 00 C8 11 6A 1E 64 CC 69 24 40 FF 0E 24 00 AD 1E 64 CC 69 6D
304 304  
305 -**4:** is less than the upper limit
306 306  
307 -**5:** is greater than the upper limit
392 +**Parsed Value:**
308 308  
394 +[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
309 309  
310 -(% style="color:blue" %)**Upper limit:**
311 311  
312 -The upper limit of the threshold cannot exceed 2000mm.
397 +[360,176,30,High,True,2023-08-04 02:53:00],
313 313  
399 +[355,168,30,Low,False,2023-08-04 02:53:29],
314 314  
315 -(% style="color:blue" %)**Lower limit:**
401 +[245,211,30,Low,False,2023-08-04 02:54:29],
316 316  
317 -The lower limit of the threshold cannot be less than 3mm.
403 +[57,700,30,Low,False,2023-08-04 02:55:29],
318 318  
405 +[361,164,30,Low,True,2023-08-04 02:56:00],
319 319  
320 -== 2.4 Decode payload in The Things Network ==
407 +[337,184,30,Low,False,2023-08-04 02:56:40],
321 321  
409 +[20,4458,30,Low,False,2023-08-04 02:57:40],
322 322  
411 +[362,173,30,Low,False,2023-08-04 02:58:53],
412 +
413 +
414 +**History read from serial port：**
415 +
416 +[[image:image-20230805145056-3.png]]
417 +
418 +
419 +=== 2.3.4 Decode payload in The Things Network ===
420 +
421 +
323 323  While using TTN network, you can add the payload format to decode the payload.
324 324  
325 -[[image:image-20231206143515-1.png||height="534" width="759"]]
424 +[[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"]]
326 326  
327 327  
328 328  (((
... ... @@ -334,7 +334,7 @@
334 334  )))
335 335  
336 336  
337 -== 2.5 ​Show Data in DataCake IoT Server ==
436 +== 2.4 ​Show Data in DataCake IoT Server ==
338 338  
339 339  
340 340  (((
... ... @@ -366,10 +366,10 @@
366 366  
367 367  After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
368 368  
369 -[[image:image-20231129100454-2.png||height="501" width="928"]]
468 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610165129-11.png?width=1088&height=595&rev=1.1||alt="image-20220610165129-11.png"]]
370 370  
371 371  
372 -== 2.6 Frequency Plans ==
471 +== 2.5 Frequency Plans ==
373 373  
374 374  
375 375  The DS20L uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
... ... @@ -450,11 +450,9 @@
450 450  )))
451 451  * (((
452 452  Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
453 -
454 -
455 -
456 456  )))
457 457  
554 +
458 458  === 3.3.2 Set Interrupt Mode ===
459 459  
460 460  
... ... @@ -493,9 +493,11 @@
493 493  
494 494  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
495 495  
496 -=== 3.3.3 Set work mode ===
497 497  
498 498  
595 +== 3.3.3 Set work mode ==
596 +
597 +
499 499  Feature: Switch working mode
500 500  
501 501  (% style="color:blue" %)**AT Command: AT+MOD**
... ... @@ -510,10 +510,11 @@
510 510  
511 511  (% style="color:blue" %)**Downlink Command:**
512 512  
513 -* **Example: **0x0A01 ~/~/  Same as AT+MOD=1
612 +* **Example: **0x0A00  ~/~/  Same as AT+MOD=0
514 514  
515 -* **Example:** 0x0A02  ~/~/  Same as AT+MOD=2
614 +* **Example:** 0x0A01  ~/~/  Same as AT+MOD=1
516 516  
616 +
517 517  === 3.3.4 Set threshold and threshold mode ===
518 518  
519 519  
... ... @@ -523,8 +523,8 @@
523 523  
524 524  (% style="color:blue" %)**AT Command: AT+DOL**
525 525  
526 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
527 -|(% style="background-color:#4f81bd; color:white; width:162px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:240px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:108px" %)**Response**
626 +(% border="1" cellspacing="4" style="width:510px;background-color:#f2f2f2" %)
627 +|(% style="width:162px;background-color:#4F81BD;color:white" %)**Command Example**|(% style="width:240px;background-color:#4F81BD;color:white" %)**Function**|(% style="width:108px;background-color:#4F81BD;color:white" %)**Response**
528 528  |(% style="width:172px" %)AT+ DOL =?|(% style="width:279px" %)Get the current threshold mode and sampling time|(% style="width:118px" %)(((
529 529  0,0,0,0,400
530 530  OK
... ... @@ -531,33 +531,13 @@
531 531  )))
532 532  |(% style="width:172px" %)AT+ DOL =1,1800,100,0,400|(% style="width:279px" %)Set only the upper and lower thresholds|(% style="width:118px" %)OK
533 533  
534 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
535 -|(% rowspan="11" style="color:blue; width:120px" %)(((
536 -
537 537  
538 -
539 -
540 -
541 -
542 -
543 -
544 -
545 -
546 -
547 -**AT+DOL=5,1800,0,0,400**
548 -)))|(% rowspan="6" style="width:240px" %)(((
549 -
550 -
551 -
552 -
553 -
554 -
555 -The first bit sets the limit mode
556 -)))|(% style="width:150px" %)0: Do not use upper and lower limits
557 -|(% style="width:251px" %)1: Use upper and lower limits
558 -|(% style="width:251px" %)2: Less than the lower limit
559 -|(% style="width:251px" %)3: Greater than the lower limit
560 -|(% style="width:251px" %)4: Less than the upper limit
635 +(% border="1" cellspacing="4" style="width:510px;background-color:#f2f2f2" %)
636 +|(% rowspan="11" style="width:100px;color:blue" %)**AT+DOL=5,1800,0,0,400**|(% rowspan="6" style="width:200px" %)The first bit sets the limit mode|(% style="width:210px" %)0:Do not use upper and lower limits
637 +|(% style="width:251px" %)1:Use upper and lower limits
638 +|(% style="width:251px" %)2:Less than the lower limit
639 +|(% style="width:251px" %)3:Greater than the lower limit
640 +|(% style="width:251px" %)4:Less than the upper limit
561 561  |(% style="width:251px" %)5: Greater than the upper limit
562 562  |(% style="width:226px" %)The second bit sets the upper limit value|(% style="width:251px" %)3~~2000MM
563 563  |(% style="width:226px" %)The third bit sets the lower limit value|(% style="width:251px" %)3~~2000MM
... ... @@ -571,22 +571,15 @@
571 571  
572 572  (% style="color:blue" %)**Downlink Command: 0x07**
573 573  
574 -Format: Command Code (0x07) followed by 9 bytes.
654 +Format: Command Code (0x07) followed by 9bytes.
575 575  
576 -If the downlink payload=**07 01 0708 0064 00 0190**, it means set the END Node's limit mode to 0x01,upper limit value to 0x0708=1800(mm), lower limit value to 0x0064=100(mm), to over-limit alarm(0x00) ,the sampling time to 0x0190=400(ms), while type code is 0x07.
656 +* Example 0: Downlink Payload: 070000000000000190  **~-~-->**  AT+MOD=0,0,0,0,400
577 577  
578 -* Example 0: Downlink Payload: 07 00 0000 0000 00 0190  **~-~-->**  AT+MOD=0,0,0,0,400
579 -
580 580  * Example 1: Downlink Payload: 070107080064000190  **~-~-->**  AT+MOD=1,1800,100,0,400
581 581  
582 -* Example 2: Downlink Payload: 070200000064000190  **~-~-->**  AT+MOD=2,0,100,0,400
583 583  
584 -* Example 3: Downlink Payload: 070300000064000190  **~-~-->**  AT+MOD=3,1800,100,0,400
585 585  
586 -* Example 4: Downlink Payload: 070407080000000190  **~-~-->**  AT+MOD=4,0,100,0,400
587 587  
588 -* Example 5: Downlink Payload: 070507080000000190  **~-~-->**  AT+MOD=5,1800,100,0,400
589 -
590 590  = 4. Battery & Power Consumption =
591 591  
592 592  
... ... @@ -623,33 +623,6 @@
623 623  DS20L use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
624 624  
625 625  
626 -== 6.2 DS20L programming line ==
627 -
628 -
629 -缺图 后续补上
630 -
631 -feature:
632 -
633 -for AT commands
634 -
635 -Update the firmware of DS20L
636 -
637 -Support interrupt mode
638 -
639 -
640 -== 6.3 LiDAR probe position ==
641 -
642 -
643 -[[image:1701155390576-216.png||height="285" width="307"]]
644 -
645 -The black oval hole in the picture is the LiDAR probe.
646 -
647 -
648 -== 6.4 Interface definition ==
649 -
650 -[[image:image-20231128151132-2.png||height="305" width="557"]]
651 -
652 -
653 653  = 7. Trouble Shooting =
654 654  
655 655  == 7.1 AT Command input doesn't work ==
... ... @@ -725,4 +725,3 @@
725 725  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
726 726  
727 727  * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[Support@dragino.cc>>mailto:Support@dragino.cc]].
728 -
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