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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 118.5
edited by Xiaoling
on 2023/11/28 14:05
Change comment: There is no comment for this version
To version 140.1
edited by Mengting Qiu
on 2023/12/07 14:51
Change comment: There is no comment for this version

Summary

Details

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Author
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1 -XWiki.Xiaoling
1 +XWiki.ting
Content
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8 8  
9 9  
10 10  
11 -**Table of Contents：**
11 +**Table of Contents:(% style="display:none" %) (%%)**
12 12  
13 13  {{toc/}}
14 14  
... ... @@ -91,7 +91,7 @@
91 91  
92 92  [[image:image-20231110102635-5.png||height="402" width="807"]](% style="display:none" %)
93 93  
94 -(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DS20L.
94 +=== Step 1: Create a device in TTN with the OTAA keys from DS20L. ===
95 95  
96 96  Each DS20L is shipped with a sticker with the default device EUI as below:
97 97  
... ... @@ -98,32 +98,22 @@
98 98  [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
99 99  
100 100  
101 -You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
101 +You can enter this key in the LoRaWAN Server portal. Below is TTN V3 screenshot:
102 102  
103 103  
104 104  (% style="color:blue" %)**Register the device**
105 105  
106 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]
106 +[[image:image-20231207144600-2.png||height="703" width="756"]]
107 107  
108 108  
109 -(% style="color:blue" %)**Add APP EUI and DEV EUI**
109 +(% style="color:blue" %)**Add DevEUI and AppKey**
110 110  
111 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]
111 +[[image:image-20231207145121-5.png||height="540" width="756"]]
112 112  
113 113  
114 -(% style="color:blue" %)**Add APP EUI in the application**
115 115  
115 +=== Step 2: Activate on DS20L ===
116 116  
117 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]
118 -
119 -
120 -(% style="color:blue" %)**Add APP KEY**
121 -
122 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]
123 -
124 -
125 -(% style="color:blue" %)**Step 2:**(%%) Activate on DS20L
126 -
127 127  [[image:image-20231128133704-1.png||height="189" width="441"]]
128 128  
129 129  Press the button for 5 seconds to activate the DS20L.
... ... @@ -133,6 +133,7 @@
133 133  After join success, it will start to upload messages to TTN and you can see the messages in the panel.
134 134  
135 135  
126 +
136 136  == 2.3 ​Uplink Payload ==
137 137  
138 138  === 2.3.1 Device Status, FPORT~=5 ===
... ... @@ -150,7 +150,7 @@
150 150  
151 151  Example parse in TTNv3
152 152  
153 -[[image:1701149922873-259.png]]
144 +[[image:image-20231206151412-3.png||height="179" width="1070"]]
154 154  
155 155  (% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x21
156 156  
... ... @@ -206,222 +206,123 @@
206 206  === 2.3.2 Uplink Payload, FPORT~=2 ===
207 207  
208 208  
209 -(((
210 -DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
200 +==== (% style="color:red" %)**MOD~=1**(%%) ====
211 211  
212 -periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
202 +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.
213 213  
214 -Uplink Payload totals 11 bytes.
215 -)))
204 +Uplink Payload totals 10 bytes.
216 216  
217 217  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
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 -)))
207 +|(% 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**
208 +|(% 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
228 228  
229 -[[image:image-20230805104104-2.png||height="136" width="754"]]
210 +[[image:image-20231206195704-6.png||height="238" width="999"]]
230 230  
212 +(% style="color:blue" %)**Battery Info:**
231 231  
232 -==== (% style="color:blue" %)**Battery Info**(%%) ====
214 +Check the battery voltage for DS20L
233 233  
216 +Ex1: 0x0E10 = 3600mV
234 234  
235 -Check the battery voltage for DS20L.
236 236  
237 -Ex1: 0x0B45 = 2885mV
219 +(% style="color:blue" %)**MOD & Alarm & Interrupt:**
238 238  
239 -Ex2: 0x0B49 = 2889mV
221 +(% style="color:red" %)**MOD:**
240 240  
223 +**Example: ** (0x60>>6) & 0x3f =1
241 241  
242 -==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
225 +**0x01:**  Regularly detect distance and report.
226 +**0x02: ** Uninterrupted measurement (external power supply).
243 243  
228 +(% style="color:red" %)**Alarm:**
244 244  
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.
230 +When the detection distance exceeds the limit, the alarm flag is set to 1.
246 246  
232 +(% style="color:red" %)**Interrupt:**
247 247  
248 -**Example**:
234 +Whether it is an external interrupt.
249 249  
250 -If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
251 251  
252 -If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
237 +(% style="color:blue" %)**Distance info:**
253 253  
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 -
261 261  **Example**:
262 262  
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.
241 +If payload is: 0708H: distance = 0708H = 1800 mm
264 264  
265 265  
266 -==== (% style="color:blue" %)**Distance signal strength**(%%) ====
244 +(% style="color:blue" %)**Sensor State:**
267 267  
246 +Ex1: 0x00: Normal collection distance
268 268  
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.
248 +Ex2 0x0x: Distance collection is wrong
270 270  
271 271  
272 -**Example**:
251 +(% style="color:blue" %)**Interript Count:**
273 273  
274 -If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
253 +If payload is:000007D0H: count = 07D0H =2000
275 275  
276 -Customers can judge whether they need to adjust the environment based on the signal strength.
277 277  
278 278  
279 -**1) When the sensor detects valid data:**
257 +==== (% style="color:red" %)**MOD~=2**(%%)** ** ====
280 280  
281 -[[image:image-20230805155335-1.png||height="145" width="724"]]
259 +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.
282 282  
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 -
344 344  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
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
262 +|(% 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**
263 +|(% 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
353 353  
354 -**Interrupt flag & Interrupt level:**
265 +[[image:1701155150328-206.png]]
355 355  
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 -)))
267 +(% style="color:blue" %)**MOD & Alarm & Do & Limit flag:**
363 363  
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 -)))
269 +(% style="color:red" %)**MOD:**
367 367  
368 -For example, in the US915 band, the max payload for different DR is:
271 +**Example: ** (0x60>>6) & 0x3f =1
369 369  
370 -**a) DR0:** max is 11 bytes so one entry of data
273 +**0x01:**  Regularly detect distance and report.
274 +**0x02: ** Uninterrupted measurement (external power supply).
371 371  
372 -**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
276 +(% style="color:red" %)**Alarm:**
373 373  
374 -**c) DR2:** total payload includes 11 entries of data
278 +When the detection distance exceeds the limit, the alarm flag is set to 1.
375 375  
376 -**d) DR3:** total payload includes 22 entries of data.
280 +(% style="color:red" %)**Do:**
377 377  
378 -If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
282 +When the distance exceeds the set threshold, pull the Do pin high.
379 379  
284 +(% style="color:red" %)**Limit flag:**
380 380  
381 -**Downlink:**
286 +Mode for setting threshold: **0~~5**
382 382  
383 -0x31 64 CC 68 0C 64 CC 69 74 05
288 +**0:** does not use upper and lower limits
384 384  
385 -[[image:image-20230805144936-2.png||height="113" width="746"]]
290 +**1:** Use upper and lower limits
386 386  
387 -**Uplink:**
292 +**2:** is less than the lower limit value
388 388  
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
294 +**3:** is greater than the lower limit value
390 390  
296 +**4:** is less than the upper limit
391 391  
392 -**Parsed Value:**
298 +**5:** is greater than the upper limit
393 393  
394 -[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
395 395  
301 +(% style="color:blue" %)**Upper limit:**
396 396  
397 -[360,176,30,High,True,2023-08-04 02:53:00],
303 +The upper limit of the threshold cannot exceed 2000mm.
398 398  
399 -[355,168,30,Low,False,2023-08-04 02:53:29],
400 400  
401 -[245,211,30,Low,False,2023-08-04 02:54:29],
306 +(% style="color:blue" %)**Lower limit:**
402 402  
403 -[57,700,30,Low,False,2023-08-04 02:55:29],
308 +The lower limit of the threshold cannot be less than 3mm.
404 404  
405 -[361,164,30,Low,True,2023-08-04 02:56:00],
406 406  
407 -[337,184,30,Low,False,2023-08-04 02:56:40],
311 +== 2.4 Decode payload in The Things Network ==
408 408  
409 -[20,4458,30,Low,False,2023-08-04 02:57:40],
410 410  
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 -
422 422  While using TTN network, you can add the payload format to decode the payload.
423 423  
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"]]
316 +[[image:image-20231206143515-1.png||height="534" width="759"]]
425 425  
426 426  
427 427  (((
... ... @@ -433,7 +433,7 @@
433 433  )))
434 434  
435 435  
436 -== 2.4 ​Show Data in DataCake IoT Server ==
328 +== 2.5 ​Show Data in DataCake IoT Server ==
437 437  
438 438  
439 439  (((
... ... @@ -465,10 +465,10 @@
465 465  
466 466  After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
467 467  
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"]]
360 +[[image:image-20231129100454-2.png||height="501" width="928"]]
469 469  
470 470  
471 -== 2.5 Frequency Plans ==
363 +== 2.6 Frequency Plans ==
472 472  
473 473  
474 474  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.
... ... @@ -549,9 +549,11 @@
549 549  )))
550 550  * (((
551 551  Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
552 -)))
553 553  
554 554  
446 +
447 +)))
448 +
555 555  === 3.3.2 Set Interrupt Mode ===
556 556  
557 557  
... ... @@ -590,56 +590,71 @@
590 590  
591 591  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
592 592  
487 +=== 3.3.3 Set work mode ===
593 593  
594 594  
595 -== 3.3.3 Set work mode ==
596 -
597 -
598 598  Feature: Switch working mode
599 599  
600 600  (% style="color:blue" %)**AT Command: AT+MOD**
601 601  
602 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:463px" %)
603 -|=(% style="width: 162px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 193px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 108px;background-color:#4F81BD;color:white" %)**Response**
494 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
495 +|=(% 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**
604 604  |(% style="width:162px" %)AT+MOD=?|(% style="width:191px" %)Get the current working mode.|(% style="width:106px" %)OK
605 605  |(% style="width:162px" %)AT+MOD=1|(% style="width:191px" %)Set the working mode to Regular measurements.|(% style="width:106px" %)(((
606 606  OK
607 -
608 608  Attention:Take effect after ATZ
609 609  )))
610 610  
611 611  (% style="color:blue" %)**Downlink Command:**
612 612  
613 -* **Example: **0x0A00  ~/~/  Same as AT+MOD=0
504 +* **Example: **0x0A01 ~/~/  Same as AT+MOD=1
614 614  
615 -* **Example:** 0x0A01  ~/~/  Same as AT+MOD=1
506 +* **Example:** 0x0A02  ~/~/  Same as AT+MOD=2
616 616  
617 -
618 618  === 3.3.4 Set threshold and threshold mode ===
619 619  
620 620  
621 621  Feature, Set threshold and threshold mode
622 622  
623 -When **AT+DOL=0,0,0,0,400** is set, No threshold is used, the sampling time is 400ms.
513 +When (% style="color:#037691" %)**AT+DOL=0,0,0,0,400**(%%) is set, No threshold is used, the sampling time is 400ms.
624 624  
625 625  (% style="color:blue" %)**AT Command: AT+DOL**
626 626  
627 -(% border="1" cellspacing="4" style="width:571.818px" %)
628 -|(% style="width:172px;background-color:#4F81BD;color:white" %)**Command Example**|(% style="width:279px;background-color:#4F81BD;color:white" %)**Function**|(% style="width:118px;background-color:#4F81BD;color:white" %)**Response**
517 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
518 +|(% 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**
629 629  |(% style="width:172px" %)AT+ DOL =?|(% style="width:279px" %)Get the current threshold mode and sampling time|(% style="width:118px" %)(((
630 630  0,0,0,0,400
631 -
632 632  OK
633 633  )))
634 634  |(% style="width:172px" %)AT+ DOL =1,1800,100,0,400|(% style="width:279px" %)Set only the upper and lower thresholds|(% style="width:118px" %)OK
635 635  
525 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
526 +|(% rowspan="11" style="color:blue; width:120px" %)(((
527 +
636 636  
637 -(% border="1" cellspacing="4" style="width:668.818px" %)
638 -|(% rowspan="11" style="width:166px" %)**AT+DOL=5,1800,0,0,400**|(% rowspan="6" style="width:226px" %)The first bit sets the limit mode|(% style="width:251px" %)0:Do not use upper and lower limits
639 -|(% style="width:251px" %)1:Use upper and lower limits
640 -|(% style="width:251px" %)2:Less than the lower limit
641 -|(% style="width:251px" %)3:Greater than the lower limit
642 -|(% style="width:251px" %)4:Less than the upper limit
529 +
530 +
531 +
532 +
533 +
534 +
535 +
536 +
537 +
538 +**AT+DOL=5,1800,0,0,400**
539 +)))|(% rowspan="6" style="width:240px" %)(((
540 +
541 +
542 +
543 +
544 +
545 +
546 +The first bit sets the limit mode
547 +)))|(% style="width:150px" %)0: Do not use upper and lower limits
548 +|(% style="width:251px" %)1: Use upper and lower limits
549 +|(% style="width:251px" %)2: Less than the lower limit
550 +|(% style="width:251px" %)3: Greater than the lower limit
551 +|(% style="width:251px" %)4: Less than the upper limit
643 643  |(% style="width:251px" %)5: Greater than the upper limit
644 644  |(% style="width:226px" %)The second bit sets the upper limit value|(% style="width:251px" %)3~~2000MM
645 645  |(% style="width:226px" %)The third bit sets the lower limit value|(% style="width:251px" %)3~~2000MM
... ... @@ -653,15 +653,22 @@
653 653  
654 654  (% style="color:blue" %)**Downlink Command: 0x07**
655 655  
656 -Format: Command Code (0x07) followed by 9bytes.
565 +Format: Command Code (0x07) followed by 9 bytes.
657 657  
658 -* Example 0: Downlink Payload: 070000000000000190  **~-~-->**  AT+MOD=0,0,0,0,400
567 +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.
659 659  
569 +* Example 0: Downlink Payload: 07 00 0000 0000 00 0190  **~-~-->**  AT+MOD=0,0,0,0,400
570 +
660 660  * Example 1: Downlink Payload: 070107080064000190  **~-~-->**  AT+MOD=1,1800,100,0,400
661 661  
573 +* Example 2: Downlink Payload: 070200000064000190  **~-~-->**  AT+MOD=2,0,100,0,400
662 662  
575 +* Example 3: Downlink Payload: 070300000064000190  **~-~-->**  AT+MOD=3,1800,100,0,400
663 663  
577 +* Example 4: Downlink Payload: 070407080000000190  **~-~-->**  AT+MOD=4,0,100,0,400
664 664  
579 +* Example 5: Downlink Payload: 070507080000000190  **~-~-->**  AT+MOD=5,1800,100,0,400
580 +
665 665  = 4. Battery & Power Consumption =
666 666  
667 667  
... ... @@ -698,6 +698,33 @@
698 698  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"]]
699 699  
700 700  
617 +== 6.2 DS20L programming line ==
618 +
619 +
620 +缺图 后续补上
621 +
622 +feature:
623 +
624 +for AT commands
625 +
626 +Update the firmware of DS20L
627 +
628 +Support interrupt mode
629 +
630 +
631 +== 6.3 LiDAR probe position ==
632 +
633 +
634 +[[image:1701155390576-216.png||height="285" width="307"]]
635 +
636 +The black oval hole in the picture is the LiDAR probe.
637 +
638 +
639 +== 6.4 Interface definition ==
640 +
641 +[[image:image-20231128151132-2.png||height="305" width="557"]]
642 +
643 +
701 701  = 7. Trouble Shooting =
702 702  
703 703  == 7.1 AT Command input doesn't work ==
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