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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 116.4
edited by Xiaoling
on 2023/11/13 10:38
Change comment: There is no comment for this version
To version 124.3
edited by Xiaoling
on 2023/11/28 15:14
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -47,7 +47,6 @@
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 51  == 1.3 Specification ==
52 52  
53 53  
... ... @@ -61,9 +61,6 @@
61 61  * ToF FoV: ±9°, Total 18°
62 62  * Light source: VCSEL
63 63  
64 -
65 -
66 -
67 67  == 1.4 Power Consumption ==
68 68  
69 69  
... ... @@ -77,9 +77,6 @@
77 77  * Idle: 21 mA @ 3.3v
78 78  * Max : 360 mA
79 79  
80 -
81 -
82 -
83 83  = 2. Configure DS20L to connect to LoRaWAN network =
84 84  
85 85  == 2.1 How it works ==
... ... @@ -131,6 +131,7 @@
131 131  
132 132  (% style="color:blue" %)**Step 2:**(%%) Activate on DS20L
133 133  
127 +[[image:image-20231128133704-1.png||height="189" width="441"]]
134 134  
135 135  Press the button for 5 seconds to activate the DS20L.
136 136  
... ... @@ -156,9 +156,9 @@
156 156  
157 157  Example parse in TTNv3
158 158  
159 -[[image:image-20230805103904-1.png||height="131" width="711"]]
153 +[[image:1701149922873-259.png]]
160 160  
161 -(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x24
155 +(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x21
162 162  
163 163  (% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
164 164  
... ... @@ -212,134 +212,117 @@
212 212  === 2.3.2 Uplink Payload, FPORT~=2 ===
213 213  
214 214  
215 -(((
216 -DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
209 +==== (% style="color:red" %)**MOD~=1**(%%) ====
217 217  
218 -periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
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.
219 219  
220 -Uplink Payload totals 11 bytes.
221 -)))
213 +Uplink Payload totals 10 bytes.
222 222  
223 223  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
224 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
225 -**Size(bytes)**
226 -)))|=(% 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**
227 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
228 -[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
229 -)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
230 -[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
231 -)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
232 -[[Message Type>>||anchor="HMessageType"]]
233 -)))
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
234 234  
235 -[[image:image-20230805104104-2.png||height="136" width="754"]]
219 +[[image:1701155076393-719.png]]
236 236  
221 +(% style="color:blue" %)**Battery Info:**
237 237  
238 -==== (% style="color:blue" %)**Battery Info**(%%) ====
223 +Check the battery voltage for DS20L
239 239  
225 +Ex1: 0x0E10 = 3600mV
240 240  
241 -Check the battery voltage for DS20L.
242 242  
243 -Ex1: 0x0B45 = 2885mV
228 +(% style="color:blue" %)**MOD & Alarm & Interrupt:**
244 244  
245 -Ex2: 0x0B49 = 2889mV
230 +(% style="color:red" %)**MOD:**
246 246  
232 +**Example: ** (0x60>>6) & 0x3f =1
247 247  
248 -==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
234 +**0x01:**  Regularly detect distance and report.
235 +**0x02: ** Uninterrupted measurement (external power supply).
249 249  
237 +(% style="color:red" %)**Alarm:**
250 250  
251 -This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
239 +When the detection distance exceeds the limit, the alarm flag is set to 1.
252 252  
241 +(% style="color:red" %)**Interrupt:**
253 253  
254 -**Example**:
243 +Whether it is an external interrupt.
255 255  
256 -If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
257 257  
258 -If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
246 +(% style="color:blue" %)**Distance info:**
259 259  
260 -
261 -==== (% style="color:blue" %)**Distance**(%%) ====
262 -
263 -
264 -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.
265 -
266 -
267 267  **Example**:
268 268  
269 -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.
250 +If payload is: 0708H: distance = 0708H = 1800 mm
270 270  
271 271  
272 -==== (% style="color:blue" %)**Distance signal strength**(%%) ====
253 +(% style="color:blue" %)**Sensor State:**
273 273  
255 +Ex1: 0x00: Normal collection distance
274 274  
275 -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.
257 +Ex2 0x0x: Distance collection is wrong
276 276  
277 277  
278 -**Example**:
260 +(% style="color:blue" %)**Interript Count:**
279 279  
280 -If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
262 +If payload is:000007D0H: count = 07D0H =2000
281 281  
282 -Customers can judge whether they need to adjust the environment based on the signal strength.
283 283  
284 284  
285 -**1) When the sensor detects valid data:**
266 +==== (% style="color:red" %)**MOD~=2**(%%)** ** ====
286 286  
287 -[[image:image-20230805155335-1.png||height="145" width="724"]]
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.
288 288  
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
289 289  
290 -**2) When the sensor detects invalid data:**
274 +[[image:1701155150328-206.png]]
291 291  
292 -[[image:image-20230805155428-2.png||height="139" width="726"]]
276 +(% style="color:blue" %)**MOD & Alarm & Do & Limit flag:**
293 293  
278 +(% style="color:red" %)**MOD:**
294 294  
295 -**3) When the sensor is not connected:**
280 +**Example: ** (0x60>>6) & 0x3f =1
296 296  
297 -[[image:image-20230805155515-3.png||height="143" width="725"]]
282 +**0x01:**  Regularly detect distance and report.
283 +**0x02: ** Uninterrupted measurement (external power supply).
298 298  
285 +(% style="color:red" %)**Alarm:**
299 299  
300 -==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
287 +When the detection distance exceeds the limit, the alarm flag is set to 1.
301 301  
289 +(% style="color:red" %)**Do:**
302 302  
303 -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.
291 +When the distance exceeds the set threshold, pull the Do pin high.
304 304  
305 -Note: The Internet Pin is a separate pin in the screw terminal. See pin mapping of GPIO_EXTI .
293 +(% style="color:red" %)**Limit flag:**
306 306  
307 -**Example:**
295 +Mode for setting threshold: 0~~5
308 308  
309 -If byte[0]&0x01=0x00 : Normal uplink packet.
297 +0: does not use upper and lower limits
310 310  
311 -If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
299 +1: Use upper and lower limits
312 312  
301 +2: is less than the lower limit value
313 313  
314 -==== (% style="color:blue" %)**LiDAR temp**(%%) ====
303 +3: is greater than the lower limit value
315 315  
305 +4: is less than the upper limit
316 316  
317 -Characterize the internal temperature value of the sensor.
307 +5: is greater than the upper limit
318 318  
319 -**Example: **
320 -If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
321 -If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
322 322  
310 +(% style="color:blue" %)**Upper limit:**
323 323  
324 -==== (% style="color:blue" %)**Message Type**(%%) ====
312 +The upper limit of the threshold cannot exceed 2000mm.
325 325  
326 326  
327 -(((
328 -For a normal uplink payload, the message type is always 0x01.
329 -)))
315 +(% style="color:blue" %)**Lower limit:**
330 330  
331 -(((
332 -Valid Message Type:
333 -)))
317 +The lower limit of the threshold cannot be less than 3mm.
334 334  
335 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
336 -|=(% 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**
337 -|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
338 -|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
339 339  
340 -[[image:image-20230805150315-4.png||height="233" width="723"]]
341 -
342 -
343 343  === 2.3.3 Historical measuring distance, FPORT~=3 ===
344 344  
345 345  
... ... @@ -471,90 +471,18 @@
471 471  
472 472  After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
473 473  
474 -[[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"]]
451 +[[image:1701152946067-561.png]]
475 475  
476 476  
477 -== 2.5 Datalog Feature ==
454 +== 2.5 Frequency Plans ==
478 478  
479 479  
480 -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.
481 -
482 -
483 -=== 2.5.1 Ways to get datalog via LoRaWAN ===
484 -
485 -
486 -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.
487 -
488 -* (((
489 -a) DS20L will do an ACK check for data records sending to make sure every data arrive server.
490 -)))
491 -* (((
492 -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.
493 -)))
494 -
495 -=== 2.5.2 Unix TimeStamp ===
496 -
497 -
498 -DS20L uses Unix TimeStamp format based on
499 -
500 -[[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"]]
501 -
502 -User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
503 -
504 -Below is the converter example
505 -
506 -[[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"]]
507 -
508 -
509 -So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
510 -
511 -
512 -=== 2.5.3 Set Device Time ===
513 -
514 -
515 -User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
516 -
517 -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).
518 -
519 -(% 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.**
520 -
521 -
522 -=== 2.5.4 Poll sensor value ===
523 -
524 -
525 -Users can poll sensor values based on timestamps. Below is the downlink command.
526 -
527 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
528 -|(% colspan="4" style="background-color:#4f81bd; color:white; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
529 -|(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
530 -|(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
531 -
532 -(((
533 -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.
534 -)))
535 -
536 -(((
537 -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"]]
538 -)))
539 -
540 -(((
541 -Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
542 -)))
543 -
544 -(((
545 -Uplink Internal =5s，means DS20L will send one packet every 5s. range 5~~255s.
546 -)))
547 -
548 -
549 -== 2.6 Frequency Plans ==
550 -
551 -
552 552  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.
553 553  
554 554  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
555 555  
556 556  
557 -3. Configure DS20L
462 += 3. Configure DS20L =
558 558  
559 559  == 3.1 Configure Methods ==
560 560  
... ... @@ -626,10 +626,7 @@
626 626  Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
627 627  )))
628 628  * (((
629 -Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
630 -
631 -
632 -
534 +Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
633 633  )))
634 634  
635 635  === 3.3.2 Set Interrupt Mode ===
... ... @@ -649,7 +649,7 @@
649 649  the mode is 0 =Disable Interrupt
650 650  )))
651 651  |(% style="width:154px" %)(((
652 -AT+INTMOD=2
554 +AT+INTMOD=3
653 653  
654 654  (default)
655 655  )))|(% style="width:196px" %)(((
... ... @@ -670,6 +670,79 @@
670 670  
671 671  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
672 672  
575 +== 3.3.3 Set work mode ==
576 +
577 +
578 +Feature: Switch working mode
579 +
580 +(% style="color:blue" %)**AT Command: AT+MOD**
581 +
582 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
583 +|=(% 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**
584 +|(% style="width:162px" %)AT+MOD=?|(% style="width:191px" %)Get the current working mode.|(% style="width:106px" %)OK
585 +|(% style="width:162px" %)AT+MOD=1|(% style="width:191px" %)Set the working mode to Regular measurements.|(% style="width:106px" %)(((
586 +OK
587 +Attention:Take effect after ATZ
588 +)))
589 +
590 +(% style="color:blue" %)**Downlink Command:**
591 +
592 +* **Example: **0x0A00  ~/~/  Same as AT+MOD=0
593 +
594 +* **Example:** 0x0A01  ~/~/  Same as AT+MOD=1
595 +
596 +=== 3.3.4 Set threshold and threshold mode ===
597 +
598 +
599 +Feature, Set threshold and threshold mode
600 +
601 +When (% style="color:#037691" %)**AT+DOL=0,0,0,0,400**(%%) is set, No threshold is used, the sampling time is 400ms.
602 +
603 +(% style="color:blue" %)**AT Command: AT+DOL**
604 +
605 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
606 +|(% 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**
607 +|(% style="width:172px" %)AT+ DOL =?|(% style="width:279px" %)Get the current threshold mode and sampling time|(% style="width:118px" %)(((
608 +0,0,0,0,400
609 +OK
610 +)))
611 +|(% style="width:172px" %)AT+ DOL =1,1800,100,0,400|(% style="width:279px" %)Set only the upper and lower thresholds|(% style="width:118px" %)OK
612 +
613 +
614 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
615 +|(% 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
616 +|(% style="width:251px" %)1: Use upper and lower limits
617 +|(% style="width:251px" %)2: Less than the lower limit
618 +|(% style="width:251px" %)3: Greater than the lower limit
619 +|(% style="width:251px" %)4: Less than the upper limit
620 +|(% style="width:251px" %)5: Greater than the upper limit
621 +|(% style="width:226px" %)The second bit sets the upper limit value|(% style="width:251px" %)3~~2000MM
622 +|(% style="width:226px" %)The third bit sets the lower limit value|(% style="width:251px" %)3~~2000MM
623 +|(% 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
624 +|(% style="width:251px" %)1 Person or object counting statistics
625 +|(% style="width:226px" %)The fifth bit sets the sampling time|(% style="width:251px" %)(((
626 +0~~10000ms
627 +
628 +
629 +)))
630 +
631 +(% style="color:blue" %)**Downlink Command: 0x07**
632 +
633 +Format: Command Code (0x07) followed by 9bytes.
634 +
635 +* Example 0: Downlink Payload: 070000000000000190  **~-~-->**  AT+MOD=0,0,0,0,400
636 +
637 +* Example 1: Downlink Payload: 070107080064000190  **~-~-->**  AT+MOD=1,1800,100,0,400
638 +
639 +* Example 2: Downlink Payload: 070200000064000190  **~-~-->**  AT+MOD=2,0,100,0,400
640 +
641 +* Example 3: Downlink Payload: 0703200000064000190  **~-~-->**  AT+MOD=3,1800,100,0,400
642 +
643 +* Example 4: Downlink Payload: 070407080000000190  **~-~-->**  AT+MOD=4,0,100,0,400
644 +
645 +* Example 5: Downlink Payload: 070507080000000190  **~-~-->**  AT+MOD=5,1800,100,0,400
646 +
647 +
673 673  = 4. Battery & Power Consumption =
674 674  
675 675  
... ... @@ -706,6 +706,33 @@
706 706  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"]]
707 707  
708 708  
684 +== 6.2 DS20L programming line ==
685 +
686 +
687 +缺图 后续补上
688 +
689 +feature:
690 +
691 +for AT commands
692 +
693 +Update the firmware of DS20L
694 +
695 +Support interrupt mode
696 +
697 +
698 +== 6.3 LiDAR probe position ==
699 +
700 +
701 +[[image:1701155390576-216.png||height="285" width="307"]]
702 +
703 +The black oval hole in the picture is the LiDAR probe.
704 +
705 +
706 +== 6.4 Interface definition ==
707 +
708 +[[image:image-20231128151132-2.png||height="305" width="557"]]
709 +
710 +
709 709  = 7. Trouble Shooting =
710 710  
711 711  == 7.1 AT Command input doesn't work ==
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