Last modified by Mengting Qiu on 2023/12/14 11:15

From version 82.2
edited by Xiaoling
on 2023/06/14 16:25
Change comment: There is no comment for this version
To version 80.3
edited by Xiaoling
on 2023/06/14 15:53
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -35,7 +35,7 @@
35 35  
36 36  Each LDS12-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
37 37  
38 -[[image:image-20230614162334-2.png||height="468" width="800"]]
38 +[[image:image-20230613140115-3.png||height="453" width="800"]]
39 39  
40 40  
41 41  == 1.2 ​Features ==
... ... @@ -44,16 +44,19 @@
44 44  * LoRaWAN 1.0.3 Class A
45 45  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
46 46  * Ultra-low power consumption
47 -* Laser technology for distance detection
48 -* Measure Distance: 0.1m~~12m @ 90% Reflectivity
49 -* Accuracy :  ±5cm@(0.1-6m), ±1%@(6m-12m)
50 -* Monitor Battery Level
47 +* Liquid Level Measurement by Ultrasonic technology
48 +* Measure through container, No need to contact Liquid
49 +* Valid level range 20mm - 2000mm
50 +* Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
51 +* Cable Length : 25cm
51 51  * Support Bluetooth v5.1 and LoRaWAN remote configure
52 52  * Support wireless OTA update firmware
53 53  * AT Commands to change parameters
54 54  * Downlink to change configure
56 +* IP66 Waterproof Enclosure
55 55  * 8500mAh Battery for long term use
56 56  
59 +
57 57  == 1.3 Specification ==
58 58  
59 59  
... ... @@ -82,6 +82,7 @@
82 82  * Sleep Mode: 5uA @ 3.3v
83 83  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
84 84  
88 +
85 85  == 1.4 Suitable Container & Liquid ==
86 86  
87 87  
... ... @@ -92,14 +92,15 @@
92 92  ** Pure non metal material: <10 mm
93 93  * Pure liquid without irregular deposition.
94 94  
99 +
95 95  (% style="display:none" %)
96 96  
97 -== 1.5 Install LDS12-LB ==
102 +== 1.5 Install DDS20-LB ==
98 98  
99 99  
100 100  (% style="color:blue" %)**Step 1**(%%):  ** Choose the installation point.**
101 101  
102 -LDS12-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
107 +DDS20-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
103 103  
104 104  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-3.png?rev=1.1||alt="image-20220615091045-3.png"]]
105 105  
... ... @@ -125,15 +125,15 @@
125 125  )))
126 126  
127 127  (((
128 -Power on LDS12-LB, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
133 +Power on DDS20-LB, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
129 129  )))
130 130  
131 131  (((
132 -It is necessary to put the coupling paste between the sensor and the container, otherwise LDS12-LB won't detect the liquid level.
137 +It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-LB won't detect the liquid level.
133 133  )))
134 134  
135 135  (((
136 -After paste the LDS12-LB well, power on LDS12-LB. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life.
141 +After paste the DDS20-LB well, power on DDS20-LB. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life.
137 137  )))
138 138  
139 139  
... ... @@ -153,7 +153,7 @@
153 153  )))
154 154  
155 155  (((
156 -LDS12-LB will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
161 +LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
157 157  )))
158 158  
159 159  
... ... @@ -175,7 +175,7 @@
175 175  )))
176 176  
177 177  (((
178 -Reset LDS12-LB and see if the BLUE LED is slowly blinking.
183 +Reset DDS20-LB and see if the BLUE LED is slowly blinking.
179 179  )))
180 180  
181 181  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-8.png?width=341&height=203&rev=1.1||alt="image-20220615091045-8.png"]] [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-9.png?width=284&height=200&rev=1.1||alt="image-20220615091045-9.png"]]
... ... @@ -199,6 +199,7 @@
199 199  
200 200  * Smart liquefied gas solution
201 201  
207 +
202 202  == 1.7 Precautions ==
203 203  
204 204  
... ... @@ -237,10 +237,11 @@
237 237  )))
238 238  |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
239 239  
246 +
240 240  == 1.10 BLE connection ==
241 241  
242 242  
243 -LDS12-LB support BLE remote configure.
250 +DDS20-LB support BLE remote configure.
244 244  
245 245  BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
246 246  
... ... @@ -276,12 +276,12 @@
276 276  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615090910-2.png?rev=1.1||alt="image-20220615090910-2.png"]]
277 277  
278 278  
279 -= 2. Configure LDS12-LB to connect to LoRaWAN network =
286 += 2. Configure DDS20-LB to connect to LoRaWAN network =
280 280  
281 281  == 2.1 How it works ==
282 282  
283 283  
284 -The LDS12-LB is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the LDS12-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
291 +The DDS20-LB is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the DDS20-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
285 285  
286 286  (% style="display:none" %) (%%)
287 287  
... ... @@ -292,12 +292,12 @@
292 292  
293 293  The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
294 294  
295 -[[image:image-20230614162359-3.png||height="468" width="800"]](% style="display:none" %)
302 +[[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
296 296  
297 297  
298 -(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from LDS12-LB.
305 +(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS20-LB.
299 299  
300 -Each LDS12-LB is shipped with a sticker with the default device EUI as below:
307 +Each DDS20-LB is shipped with a sticker with the default device EUI as below:
301 301  
302 302  [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
303 303  
... ... @@ -326,10 +326,10 @@
326 326  [[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"]]
327 327  
328 328  
329 -(% style="color:blue" %)**Step 2:**(%%) Activate on LDS12-LB
336 +(% style="color:blue" %)**Step 2:**(%%) Activate on DDS20-LB
330 330  
331 331  
332 -Press the button for 5 seconds to activate the LDS12-LB.
339 +Press the button for 5 seconds to activate the DDS20-LB.
333 333  
334 334  (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
335 335  
... ... @@ -340,7 +340,7 @@
340 340  
341 341  
342 342  (((
343 -LDS12-LB will uplink payload via LoRaWAN with below payload format: 
350 +DDS20-LB will uplink payload via LoRaWAN with below payload format: 
344 344  )))
345 345  
346 346  (((
... ... @@ -364,7 +364,7 @@
364 364  === 2.3.1  Battery Info ===
365 365  
366 366  
367 -Check the battery voltage for LDS12-LB.
374 +Check the battery voltage for DDS20-LB.
368 368  
369 369  Ex1: 0x0B45 = 2885mV
370 370  
... ... @@ -388,6 +388,7 @@
388 388  
389 389  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
390 390  
398 +
391 391  === 2.3.3  Interrupt Pin ===
392 392  
393 393  
... ... @@ -434,7 +434,7 @@
434 434  The payload decoder function for TTN V3 is here:
435 435  
436 436  (((
437 -LDS12-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
445 +DDS20-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
438 438  )))
439 439  
440 440  
... ... @@ -441,7 +441,7 @@
441 441  == 2.4  Uplink Interval ==
442 442  
443 443  
444 -The LDS12-LB by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>||anchor="H3.3.1SetTransmitIntervalTime"]]
452 +The DDS20-LB by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>||anchor="H3.3.1SetTransmitIntervalTime"]]
445 445  
446 446  
447 447  == 2.5  ​Show Data in DataCake IoT Server ==
... ... @@ -469,7 +469,7 @@
469 469  
470 470  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
471 471  
472 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDS12-LB and add DevEUI.**
480 +(% style="color:blue" %)**Step 4**(%%)**: Search the DDS20-LB and add DevEUI.**
473 473  
474 474  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654851029373-510.png?rev=1.1||alt="1654851029373-510.png"]]
475 475  
... ... @@ -482,19 +482,19 @@
482 482  == 2.6 Datalog Feature ==
483 483  
484 484  
485 -Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LDS12-LB will store the reading for future retrieving purposes.
493 +Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DDS20-LB will store the reading for future retrieving purposes.
486 486  
487 487  
488 488  === 2.6.1 Ways to get datalog via LoRaWAN ===
489 489  
490 490  
491 -Set PNACKMD=1, LDS12-LB will wait for ACK for every uplink, when there is no LoRaWAN network,LDS12-LB 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.
499 +Set PNACKMD=1, DDS20-LB will wait for ACK for every uplink, when there is no LoRaWAN network,DDS20-LB 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.
492 492  
493 493  * (((
494 -a) LDS12-LB will do an ACK check for data records sending to make sure every data arrive server.
502 +a) DDS20-LB will do an ACK check for data records sending to make sure every data arrive server.
495 495  )))
496 496  * (((
497 -b) LDS12-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but LDS12-LB 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 LDS12-LB gets a ACK, LDS12-LB will consider there is a network connection and resend all NONE-ACK messages.
505 +b) DDS20-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but DDS20-LB 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 DDS20-LB gets a ACK, DDS20-LB will consider there is a network connection and resend all NONE-ACK messages.
498 498  )))
499 499  
500 500  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
... ... @@ -505,7 +505,7 @@
505 505  === 2.6.2 Unix TimeStamp ===
506 506  
507 507  
508 -LDS12-LB uses Unix TimeStamp format based on
516 +DDS20-LB uses Unix TimeStamp format based on
509 509  
510 510  [[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"]]
511 511  
... ... @@ -524,7 +524,7 @@
524 524  
525 525  User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
526 526  
527 -Once LDS12-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LDS12-LB. If LDS12-LB fails to get the time from the server, LDS12-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
535 +Once DDS20-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DDS20-LB. If DDS20-LB fails to get the time from the server, DDS20-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
528 528  
529 529  (% 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.**
530 530  
... ... @@ -552,7 +552,7 @@
552 552  )))
553 553  
554 554  (((
555 -Uplink Internal =5s,means LDS12-LB will send one packet every 5s. range 5~~255s.
563 +Uplink Internal =5s,means DDS20-LB will send one packet every 5s. range 5~~255s.
556 556  )))
557 557  
558 558  
... ... @@ -559,17 +559,17 @@
559 559  == 2.7 Frequency Plans ==
560 560  
561 561  
562 -The LDS12-LB 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.
570 +The DDS20-LB 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.
563 563  
564 564  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
565 565  
566 566  
567 -= 3. Configure LDS12-LB =
575 += 3. Configure DDS20-LB =
568 568  
569 569  == 3.1 Configure Methods ==
570 570  
571 571  
572 -LDS12-LB supports below configure method:
580 +DDS20-LB supports below configure method:
573 573  
574 574  * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
575 575  
... ... @@ -577,6 +577,7 @@
577 577  
578 578  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
579 579  
588 +
580 580  == 3.2 General Commands ==
581 581  
582 582  
... ... @@ -591,10 +591,10 @@
591 591  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
592 592  
593 593  
594 -== 3.3 Commands special design for LDS12-LB ==
603 +== 3.3 Commands special design for DDS20-LB ==
595 595  
596 596  
597 -These commands only valid for LDS12-LB, as below:
606 +These commands only valid for DDS20-LB, as below:
598 598  
599 599  
600 600  === 3.3.1 Set Transmit Interval Time ===
... ... @@ -676,10 +676,11 @@
676 676  
677 677  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
678 678  
688 +
679 679  = 4. Battery & Power Consumption =
680 680  
681 681  
682 -LDS12-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
692 +DDS20-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
683 683  
684 684  [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
685 685  
... ... @@ -688,7 +688,7 @@
688 688  
689 689  
690 690  (% class="wikigeneratedid" %)
691 -User can change firmware LDS12-LB to:
701 +User can change firmware DDS20-LB to:
692 692  
693 693  * Change Frequency band/ region.
694 694  
... ... @@ -704,40 +704,42 @@
704 704  
705 705  * Update through UART TTL interface: **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
706 706  
717 +
707 707  = 6. FAQ =
708 708  
709 -== 6.1 What is the frequency plan for LDS12-LB? ==
720 +== 6.1  What is the frequency plan for DDS20-LB? ==
710 710  
711 711  
712 -LDS12-LB 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"]]
723 +DDS20-LB 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"]]
713 713  
714 714  
715 -= 7Trouble Shooting =
726 +== 6.2  Can I use DDS20-LB in condensation environment? ==
716 716  
717 -== 7.1 AT Command input doesn't work ==
718 718  
729 +DDS20-LB is not suitable to be used in condensation environment. Condensation on the DDS20-LB probe will affect the reading and always got 0.
719 719  
720 -In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:blue" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:blue" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
721 721  
732 += 7.  Trouble Shooting =
722 722  
723 -== 7.2 Significant error between the output distant value of LiDAR and actual distance ==
734 +== 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
724 724  
725 725  
726 -(((
727 -(% style="color:blue" %)**Cause ①**(%%)**:**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance (such as glass and water, etc.)
728 -)))
737 +It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
729 729  
730 -(((
731 -Troubleshooting: Please avoid use of this product under such circumstance in practice.
732 -)))
733 733  
740 +== 7.2  AT Command input doesn't work ==
734 734  
735 -(((
736 -(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
737 -)))
738 738  
743 +In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:blue" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:blue" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
744 +
745 +
746 +== 7.3  Why i always see 0x0000 or 0 for the distance value? ==
747 +
748 +
739 739  (((
740 -Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
750 +LDDS20 has a strict [[**installation requirement**>>||anchor="H1.5A0InstallDDS20-LB"]]. Please make sure the installation method exactly follows up with the installation requirement. Otherwise, the reading might be always 0x00.
751 +
752 +If you have followed the instruction requirement exactly but still see the 0x00 reading issue, please. please double-check the decoder, you can check the raw payload to verify.
741 741  )))
742 742  
743 743  
... ... @@ -744,7 +744,7 @@
744 744  = 8. Order Info =
745 745  
746 746  
747 -Part Number: (% style="color:blue" %)**LDS12-LB-XXX**
759 +Part Number: (% style="color:blue" %)**DDS20-LB-XXX**
748 748  
749 749  (% style="color:red" %)**XXX**(%%): **The default frequency band**
750 750  
... ... @@ -764,12 +764,13 @@
764 764  
765 765  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
766 766  
779 +
767 767  = 9. ​Packing Info =
768 768  
769 769  
770 770  (% style="color:#037691" %)**Package Includes**:
771 771  
772 -* LDS12-LB LoRaWAN LiDAR ToF Distance Sensor x 1
785 +* DDS20-LB LoRaWAN Ultrasonic Liquid Level Sensor x 1
773 773  
774 774  (% style="color:#037691" %)**Dimension and weight**:
775 775  
... ... @@ -781,6 +781,7 @@
781 781  
782 782  * Weight / pcs : g
783 783  
797 +
784 784  = 10. Support =
785 785  
786 786  
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Author
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