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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 125.2
edited by Xiaoling
on 2023/11/29 08:52
Change comment: There is no comment for this version
To version 124.4
edited by Xiaoling
on 2023/11/28 15:18
Change comment: There is no comment for this version

Summary

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48 48  * Built-in 2400mAh battery or power by external power source
49 49  
50 50  
51 +
51 51  == 1.3 Specification ==
52 52  
53 53  
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62 62  * Light source: VCSEL
63 63  
64 64  
66 +
65 65  == 1.4 Power Consumption ==
66 66  
67 67  
... ... @@ -76,6 +76,7 @@
76 76  * Max : 360 mA
77 77  
78 78  
81 +
79 79  = 2. Configure DS20L to connect to LoRaWAN network =
80 80  
81 81  == 2.1 How it works ==
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320 320  The lower limit of the threshold cannot be less than 3mm.
321 321  
322 322  
323 -=== 2.3.3 Decode payload in The Things Network ===
326 +=== 2.3.3 Historical measuring distance, FPORT~=3 ===
324 324  
325 325  
329 +DS20L stores sensor values and users can retrieve these history values via the downlink command.
330 +
331 +The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
332 +
333 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
334 +|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
335 +**Size(bytes)**
336 +)))|=(% 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
337 +|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((
338 +Reserve(0xFF)
339 +)))|Distance|Distance signal strength|(% style="width:88px" %)(((
340 +LiDAR temp
341 +)))|(% style="width:85px" %)Unix TimeStamp
342 +
343 +**Interrupt flag & Interrupt level:**
344 +
345 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
346 +|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
347 +**Size(bit)**
348 +)))|=(% 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**
349 +|(% 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" %)(((
350 +Interrupt flag
351 +)))
352 +
353 +* (((
354 +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.
355 +)))
356 +
357 +For example, in the US915 band, the max payload for different DR is:
358 +
359 +**a) DR0:** max is 11 bytes so one entry of data
360 +
361 +**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
362 +
363 +**c) DR2:** total payload includes 11 entries of data
364 +
365 +**d) DR3:** total payload includes 22 entries of data.
366 +
367 +If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
368 +
369 +
370 +**Downlink:**
371 +
372 +0x31 64 CC 68 0C 64 CC 69 74 05
373 +
374 +[[image:image-20230805144936-2.png||height="113" width="746"]]
375 +
376 +**Uplink:**
377 +
378 +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
379 +
380 +
381 +**Parsed Value:**
382 +
383 +[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
384 +
385 +
386 +[360,176,30,High,True,2023-08-04 02:53:00],
387 +
388 +[355,168,30,Low,False,2023-08-04 02:53:29],
389 +
390 +[245,211,30,Low,False,2023-08-04 02:54:29],
391 +
392 +[57,700,30,Low,False,2023-08-04 02:55:29],
393 +
394 +[361,164,30,Low,True,2023-08-04 02:56:00],
395 +
396 +[337,184,30,Low,False,2023-08-04 02:56:40],
397 +
398 +[20,4458,30,Low,False,2023-08-04 02:57:40],
399 +
400 +[362,173,30,Low,False,2023-08-04 02:58:53],
401 +
402 +
403 +**History read from serial port：**
404 +
405 +[[image:image-20230805145056-3.png]]
406 +
407 +
408 +=== 2.3.4 Decode payload in The Things Network ===
409 +
410 +
326 326  While using TTN network, you can add the payload format to decode the payload.
327 327  
328 328  [[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"]]
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369 369  
370 370  After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
371 371  
372 -[[image:image-20231129085201-1.png||height="515" width="961"]]
457 +[[image:1701152946067-561.png]]
373 373  
374 374  
375 375  == 2.5 Frequency Plans ==
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568 568  * Example 5: Downlink Payload: 070507080000000190  **~-~-->**  AT+MOD=5,1800,100,0,400
569 569  
570 570  
656 +
571 571  = 4. Battery & Power Consumption =
572 572  
573 573  
image-20231129085201-1.png
Author
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1 -XWiki.Xiaoling
Size
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1 -70.6 KB
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