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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 116.1
edited by kai
on 2023/11/11 17:02
Change comment: There is no comment for this version
To version 125.1
edited by Xiaoling
on 2023/11/29 08:52
Change comment: Uploaded new attachment "image-20231129085201-1.png", version {1}

Summary

Details

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Author
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1 -XWiki.kai
1 +XWiki.Xiaoling
Content
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47 47  * Firmware upgradable via program port or LoRa protocol
48 48  * Built-in 2400mAh battery or power by external power source
49 49  
50 +
51 +
50 50  == 1.3 Specification ==
51 51  
52 52  
... ... @@ -60,22 +60,23 @@
60 60  * ToF FoV: ±9°, Total 18°
61 61  * Light source: VCSEL
62 62  
63 -(% style="display:none" %)
64 64  
65 65  
66 66  == 1.4 Power Consumption ==
67 67  
68 68  
69 -**Battery Power Mode:**
70 +(% style="color:#037691" %)**Battery Power Mode:**
70 70  
71 71  * Idle: 0.003 mA @ 3.3v
72 72  * Max : 360 mA
73 73  
74 -**Continuously mode**:
75 +(% style="color:#037691" %)**Continuously mode**:
75 75  
76 76  * Idle: 21 mA @ 3.3v
77 77  * Max : 360 mA
78 78  
80 +
81 +
79 79  = 2. Configure DS20L to connect to LoRaWAN network =
80 80  
81 81  == 2.1 How it works ==
... ... @@ -127,6 +127,7 @@
127 127  
128 128  (% style="color:blue" %)**Step 2:**(%%) Activate on DS20L
129 129  
133 +[[image:image-20231128133704-1.png||height="189" width="441"]]
130 130  
131 131  Press the button for 5 seconds to activate the DS20L.
132 132  
... ... @@ -152,9 +152,9 @@
152 152  
153 153  Example parse in TTNv3
154 154  
155 -[[image:image-20230805103904-1.png||height="131" width="711"]]
159 +[[image:1701149922873-259.png]]
156 156  
157 -(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x24
161 +(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x21
158 158  
159 159  (% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
160 160  
... ... @@ -208,138 +208,121 @@
208 208  === 2.3.2 Uplink Payload, FPORT~=2 ===
209 209  
210 210  
211 -(((
212 -DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
215 +==== (% style="color:red" %)**MOD~=1**(%%) ====
213 213  
214 -periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
217 +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.
215 215  
216 -Uplink Payload totals 11 bytes.
217 -)))
219 +Uplink Payload totals 10 bytes.
218 218  
219 219  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
220 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
221 -**Size(bytes)**
222 -)))|=(% 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**
223 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
224 -[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
225 -)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
226 -[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
227 -)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
228 -[[Message Type>>||anchor="HMessageType"]]
229 -)))
222 +|(% 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**
223 +|(% 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
230 230  
231 -[[image:image-20230805104104-2.png||height="136" width="754"]]
225 +[[image:1701155076393-719.png]]
232 232  
227 +(% style="color:blue" %)**Battery Info:**
233 233  
234 -==== (% style="color:blue" %)**Battery Info**(%%) ====
229 +Check the battery voltage for DS20L
235 235  
231 +Ex1: 0x0E10 = 3600mV
236 236  
237 -Check the battery voltage for DS20L.
238 238  
239 -Ex1: 0x0B45 = 2885mV
234 +(% style="color:blue" %)**MOD & Alarm & Interrupt:**
240 240  
241 -Ex2: 0x0B49 = 2889mV
236 +(% style="color:red" %)**MOD:**
242 242  
238 +**Example: ** (0x60>>6) & 0x3f =1
243 243  
244 -==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
240 +**0x01:**  Regularly detect distance and report.
241 +**0x02: ** Uninterrupted measurement (external power supply).
245 245  
243 +(% style="color:red" %)**Alarm:**
246 246  
247 -This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
245 +When the detection distance exceeds the limit, the alarm flag is set to 1.
248 248  
247 +(% style="color:red" %)**Interrupt:**
249 249  
250 -**Example**:
249 +Whether it is an external interrupt.
251 251  
252 -If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
253 253  
254 -If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
252 +(% style="color:blue" %)**Distance info:**
255 255  
256 -
257 -==== (% style="color:blue" %)**Distance**(%%) ====
258 -
259 -
260 -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.
261 -
262 -
263 263  **Example**:
264 264  
265 -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.
256 +If payload is: 0708H: distance = 0708H = 1800 mm
266 266  
267 267  
268 -==== (% style="color:blue" %)**Distance signal strength**(%%) ====
259 +(% style="color:blue" %)**Sensor State:**
269 269  
261 +Ex1: 0x00: Normal collection distance
270 270  
271 -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.
263 +Ex2 0x0x: Distance collection is wrong
272 272  
273 273  
274 -**Example**:
266 +(% style="color:blue" %)**Interript Count:**
275 275  
276 -If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
268 +If payload is:000007D0H: count = 07D0H =2000
277 277  
278 -Customers can judge whether they need to adjust the environment based on the signal strength.
279 279  
280 280  
281 -**1) When the sensor detects valid data:**
272 +==== (% style="color:red" %)**MOD~=2**(%%)** ** ====
282 282  
283 -[[image:image-20230805155335-1.png||height="145" width="724"]]
274 +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.
284 284  
276 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
277 +|(% 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**
278 +|(% 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
285 285  
286 -**2) When the sensor detects invalid data:**
280 +[[image:1701155150328-206.png]]
287 287  
288 -[[image:image-20230805155428-2.png||height="139" width="726"]]
282 +(% style="color:blue" %)**MOD & Alarm & Do & Limit flag:**
289 289  
284 +(% style="color:red" %)**MOD:**
290 290  
291 -**3) When the sensor is not connected:**
286 +**Example: ** (0x60>>6) & 0x3f =1
292 292  
293 -[[image:image-20230805155515-3.png||height="143" width="725"]]
288 +**0x01:**  Regularly detect distance and report.
289 +**0x02: ** Uninterrupted measurement (external power supply).
294 294  
291 +(% style="color:red" %)**Alarm:**
295 295  
296 -==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
293 +When the detection distance exceeds the limit, the alarm flag is set to 1.
297 297  
295 +(% style="color:red" %)**Do:**
298 298  
299 -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.
297 +When the distance exceeds the set threshold, pull the Do pin high.
300 300  
301 -Note: The Internet Pin is a separate pin in the screw terminal. See pin mapping of GPIO_EXTI .
299 +(% style="color:red" %)**Limit flag:**
302 302  
303 -**Example:**
301 +Mode for setting threshold: 0~~5
304 304  
305 -If byte[0]&0x01=0x00 : Normal uplink packet.
303 +0: does not use upper and lower limits
306 306  
307 -If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
305 +1: Use upper and lower limits
308 308  
307 +2: is less than the lower limit value
309 309  
310 -==== (% style="color:blue" %)**LiDAR temp**(%%) ====
309 +3: is greater than the lower limit value
311 311  
311 +4: is less than the upper limit
312 312  
313 -Characterize the internal temperature value of the sensor.
313 +5: is greater than the upper limit
314 314  
315 -**Example: **
316 -If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
317 -If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
318 318  
316 +(% style="color:blue" %)**Upper limit:**
319 319  
320 -==== (% style="color:blue" %)**Message Type**(%%) ====
318 +The upper limit of the threshold cannot exceed 2000mm.
321 321  
322 322  
323 -(((
324 -For a normal uplink payload, the message type is always 0x01.
325 -)))
321 +(% style="color:blue" %)**Lower limit:**
326 326  
327 -(((
328 -Valid Message Type:
329 -)))
323 +The lower limit of the threshold cannot be less than 3mm.
330 330  
331 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
332 -|=(% 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**
333 -|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
334 -|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
335 335  
336 -[[image:image-20230805150315-4.png||height="233" width="723"]]
337 -
338 -
339 339  === 2.3.3 Historical measuring distance, FPORT~=3 ===
340 340  
341 341  
342 -DS20L stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
329 +DS20L stores sensor values and users can retrieve these history values via the downlink command.
343 343  
344 344  The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
345 345  
... ... @@ -467,90 +467,18 @@
467 467  
468 468  After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
469 469  
470 -[[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"]]
457 +[[image:1701152946067-561.png]]
471 471  
472 472  
473 -== 2.5 Datalog Feature ==
460 +== 2.5 Frequency Plans ==
474 474  
475 475  
476 -Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DS20L will store the reading for future retrieving purposes.
477 -
478 -
479 -=== 2.5.1 Ways to get datalog via LoRaWAN ===
480 -
481 -
482 -Set PNACKMD=1, DS20L will wait for ACK for every uplink, when there is no LoRaWAN network, DS20L will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
483 -
484 -* (((
485 -a) DS20L will do an ACK check for data records sending to make sure every data arrive server.
486 -)))
487 -* (((
488 -b) DS20L will send data in **CONFIRMED Mode** when PNACKMD=1, but DS20L won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if DS20L gets a ACK, DS20L will consider there is a network connection and resend all NONE-ACK messages.
489 -)))
490 -
491 -=== 2.5.2 Unix TimeStamp ===
492 -
493 -
494 -DS20L uses Unix TimeStamp format based on
495 -
496 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1||alt="图片-20220523001219-11.png" height="97" width="627"]]
497 -
498 -User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
499 -
500 -Below is the converter example
501 -
502 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-12.png?width=720&height=298&rev=1.1||alt="图片-20220523001219-12.png" height="298" width="720"]]
503 -
504 -
505 -So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
506 -
507 -
508 -=== 2.5.3 Set Device Time ===
509 -
510 -
511 -User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
512 -
513 -Once DS20L Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DS20L. If DS20L fails to get the time from the server, DS20L will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
514 -
515 -(% style="color:red" %)**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.**
516 -
517 -
518 -=== 2.5.4 Poll sensor value ===
519 -
520 -
521 -Users can poll sensor values based on timestamps. Below is the downlink command.
522 -
523 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
524 -|(% colspan="4" style="background-color:#4f81bd; color:white; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
525 -|(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
526 -|(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
527 -
528 -(((
529 -Timestamp start and Timestamp end-use Unix TimeStamp format as mentioned above. Devices will reply with all data logs during this period, using the uplink interval.
530 -)))
531 -
532 -(((
533 -For example, downlink command [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPL01%20LoRaWAN%20Outdoor%20PulseContact%20%20Sensor%20Manual/WebHome/image-20220518162852-1.png?rev=1.1||alt="image-20220518162852-1.png"]]
534 -)))
535 -
536 -(((
537 -Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
538 -)))
539 -
540 -(((
541 -Uplink Internal =5s，means DS20L will send one packet every 5s. range 5~~255s.
542 -)))
543 -
544 -
545 -== 2.6 Frequency Plans ==
546 -
547 -
548 548  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.
549 549  
550 550  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
551 551  
552 552  
553 -3. Configure DS20L
468 += 3. Configure DS20L =
554 554  
555 555  == 3.1 Configure Methods ==
556 556  
... ... @@ -622,7 +622,7 @@
622 622  Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
623 623  )))
624 624  * (((
625 -Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
540 +Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
626 626  
627 627  
628 628  
... ... @@ -645,7 +645,7 @@
645 645  the mode is 0 =Disable Interrupt
646 646  )))
647 647  |(% style="width:154px" %)(((
648 -AT+INTMOD=2
563 +AT+INTMOD=3
649 649  
650 650  (default)
651 651  )))|(% style="width:196px" %)(((
... ... @@ -666,6 +666,79 @@
666 666  
667 667  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
668 668  
584 +== 3.3.3 Set work mode ==
585 +
586 +
587 +Feature: Switch working mode
588 +
589 +(% style="color:blue" %)**AT Command: AT+MOD**
590 +
591 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
592 +|=(% style="width: 162px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 193px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Response**
593 +|(% style="width:162px" %)AT+MOD=?|(% style="width:191px" %)Get the current working mode.|(% style="width:106px" %)OK
594 +|(% style="width:162px" %)AT+MOD=1|(% style="width:191px" %)Set the working mode to Regular measurements.|(% style="width:106px" %)(((
595 +OK
596 +Attention:Take effect after ATZ
597 +)))
598 +
599 +(% style="color:blue" %)**Downlink Command:**
600 +
601 +* **Example: **0x0A00  ~/~/  Same as AT+MOD=0
602 +
603 +* **Example:** 0x0A01  ~/~/  Same as AT+MOD=1
604 +
605 +=== 3.3.4 Set threshold and threshold mode ===
606 +
607 +
608 +Feature, Set threshold and threshold mode
609 +
610 +When (% style="color:#037691" %)**AT+DOL=0,0,0,0,400**(%%) is set, No threshold is used, the sampling time is 400ms.
611 +
612 +(% style="color:blue" %)**AT Command: AT+DOL**
613 +
614 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
615 +|(% 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**
616 +|(% style="width:172px" %)AT+ DOL =?|(% style="width:279px" %)Get the current threshold mode and sampling time|(% style="width:118px" %)(((
617 +0,0,0,0,400
618 +OK
619 +)))
620 +|(% style="width:172px" %)AT+ DOL =1,1800,100,0,400|(% style="width:279px" %)Set only the upper and lower thresholds|(% style="width:118px" %)OK
621 +
622 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
623 +|(% rowspan="11" style="color:blue; width:120px" %)**AT+DOL=5,1800,0,0,400**|(% rowspan="6" style="width:240px" %)The first bit sets the limit mode|(% style="width:150px" %)0: Do not use upper and lower limits
624 +|(% style="width:251px" %)1: Use upper and lower limits
625 +|(% style="width:251px" %)2: Less than the lower limit
626 +|(% style="width:251px" %)3: Greater than the lower limit
627 +|(% style="width:251px" %)4: Less than the upper limit
628 +|(% style="width:251px" %)5: Greater than the upper limit
629 +|(% style="width:226px" %)The second bit sets the upper limit value|(% style="width:251px" %)3~~2000MM
630 +|(% style="width:226px" %)The third bit sets the lower limit value|(% style="width:251px" %)3~~2000MM
631 +|(% rowspan="2" style="width:226px" %)The fourth bit sets the over-limit alarm or person or object count.|(% style="width:251px" %)0 Over-limit alarm, DO output is high
632 +|(% style="width:251px" %)1 Person or object counting statistics
633 +|(% style="width:226px" %)The fifth bit sets the sampling time|(% style="width:251px" %)(((
634 +0~~10000ms
635 +
636 +
637 +)))
638 +
639 +(% style="color:blue" %)**Downlink Command: 0x07**
640 +
641 +Format: Command Code (0x07) followed by 9bytes.
642 +
643 +* Example 0: Downlink Payload: 070000000000000190  **~-~-->**  AT+MOD=0,0,0,0,400
644 +
645 +* Example 1: Downlink Payload: 070107080064000190  **~-~-->**  AT+MOD=1,1800,100,0,400
646 +
647 +* Example 2: Downlink Payload: 070200000064000190  **~-~-->**  AT+MOD=2,0,100,0,400
648 +
649 +* Example 3: Downlink Payload: 0703200000064000190  **~-~-->**  AT+MOD=3,1800,100,0,400
650 +
651 +* Example 4: Downlink Payload: 070407080000000190  **~-~-->**  AT+MOD=4,0,100,0,400
652 +
653 +* Example 5: Downlink Payload: 070507080000000190  **~-~-->**  AT+MOD=5,1800,100,0,400
654 +
655 +
656 +
669 669  = 4. Battery & Power Consumption =
670 670  
671 671  
... ... @@ -702,6 +702,33 @@
702 702  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"]]
703 703  
704 704  
693 +== 6.2 DS20L programming line ==
694 +
695 +
696 +缺图 后续补上
697 +
698 +feature:
699 +
700 +for AT commands
701 +
702 +Update the firmware of DS20L
703 +
704 +Support interrupt mode
705 +
706 +
707 +== 6.3 LiDAR probe position ==
708 +
709 +
710 +[[image:1701155390576-216.png||height="285" width="307"]]
711 +
712 +The black oval hole in the picture is the LiDAR probe.
713 +
714 +
715 +== 6.4 Interface definition ==
716 +
717 +[[image:image-20231128151132-2.png||height="305" width="557"]]
718 +
719 +
705 705  = 7. Trouble Shooting =
706 706  
707 707  == 7.1 AT Command input doesn't work ==
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