Changes for page DS20L -- LoRaWAN Smart Distance Detector User Manual 01
Last modified by Mengting Qiu on 2023/12/14 11:15
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... ... @@ -1,1 +1,1 @@ 1 -LDS12-LB _LoRaWAN_LiDAR_ToF_Distance_Sensor_User_Manual1 +LDS12-LB -- LoRaWAN LiDAR ToF Distance Sensor User Manual - Content
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... ... @@ -1,5 +1,5 @@ 1 1 (% style="text-align:center" %) 2 -[[image:image-2023061 3133716-2.png||height="717" width="717"]]2 +[[image:image-20230614153353-1.png]] 3 3 4 4 5 5 ... ... @@ -7,7 +7,6 @@ 7 7 8 8 9 9 10 - 11 11 **Table of Contents:** 12 12 13 13 {{toc/}} ... ... @@ -19,22 +19,22 @@ 19 19 20 20 = 1. Introduction = 21 21 22 -== 1.1 What is LoRaWAN Ultrasonicliquid levelSensor ==21 +== 1.1 What is LoRaWAN LiDAR ToF Distance Sensor == 23 23 24 24 25 -The Dragino D DS20-LB is a (% style="color:blue" %)**LoRaWANUltrasonicliquidlevelsensor**(%%) for Internet of Things solution. Ituses (%style="color:blue"%)**none-contact method**(%%)tomeasure the(%style="color:blue" %)**heightofliquid**(%%)ina containerwithoutopeningthecontainer,andsendthevalueviaLoRaWANnetworktoIoTServer.24 +The Dragino LDS12-LB is a (% style="color:blue" %)**LoRaWAN LiDAR ToF (Time of Flight) Distance Sensor**(%%) for Internet of Things solution. It is capable to measure the distance to an object as close as 10 centimeters (+/- 5cm up to 6m) and as far as 12 meters (+/-1% starting at 6m)!. The LiDAR probe uses laser induction technology for distance measurement. 26 26 27 -The D DS20-LBsensorisinstalleddirectly belowthecontainertodetect theheightoftheliquidlevel. Userdoesn't needtoopen aholeon the containerto betested.Thenone-contactmeasurementmakesthemeasurement safety, easierand possibleforsome strict situation.26 +The LDS12-LB can be applied to scenarios such as horizontal distance measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, etc. 28 28 29 - DDS20-LBuses (% style="color:blue" %)**ultrasonicsensingtechnology**(%%)fordistancemeasurement.DDS20-LB is ofhighaccuracy tomeasurevarious liquidsuch as: (% style="color:blue" %)**toxicsubstances**(%%), (%style="color:blue"%)**strong acids**(%%), (% style="color:blue"%)**strongalkalis**(%%) and(%style="color:blue" %)**variouspureliquids**(%%) inhigh-temperature andhigh-pressureairtightcontainers.28 +It detects the distance between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server. 30 30 31 -The LoRa wireless technology used in D DS20-LB allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.30 +The LoRa wireless technology used in LDS12-LB allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. 32 32 33 -D DS20-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.32 +LDS12-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use. 34 34 35 -D DS20-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.34 +LDS12-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years. 36 36 37 -Each D DS20-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.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. 38 38 39 39 [[image:image-20230613140115-3.png||height="453" width="800"]] 40 40 ... ... @@ -58,7 +58,6 @@ 58 58 * 8500mAh Battery for long term use 59 59 60 60 61 - 62 62 == 1.3 Specification == 63 63 64 64 ... ... @@ -88,7 +88,6 @@ 88 88 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm 89 89 90 90 91 - 92 92 == 1.4 Suitable Container & Liquid == 93 93 94 94 ... ... @@ -100,15 +100,14 @@ 100 100 * Pure liquid without irregular deposition. 101 101 102 102 103 - 104 104 (% style="display:none" %) 105 105 106 -== 1.5 Install D DS20-LB ==102 +== 1.5 Install LDS12-LB == 107 107 108 108 109 109 (% style="color:blue" %)**Step 1**(%%): ** Choose the installation point.** 110 110 111 -D DS20-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.107 +LDS12-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position. 112 112 113 113 [[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"]] 114 114 ... ... @@ -134,15 +134,15 @@ 134 134 ))) 135 135 136 136 ((( 137 -Power on D DS20-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 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. 138 138 ))) 139 139 140 140 ((( 141 -It is necessary to put the coupling paste between the sensor and the container, otherwise D DS20-LB won't detect the liquid level.137 +It is necessary to put the coupling paste between the sensor and the container, otherwise LDS12-LB won't detect the liquid level. 142 142 ))) 143 143 144 144 ((( 145 -After paste the D DS20-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.141 +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. 146 146 ))) 147 147 148 148 ... ... @@ -162,7 +162,7 @@ 162 162 ))) 163 163 164 164 ((( 165 -LD DS20will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.161 +LDS12-LB will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that. 166 166 ))) 167 167 168 168 ... ... @@ -184,7 +184,7 @@ 184 184 ))) 185 185 186 186 ((( 187 -Reset D DS20-LB and see if the BLUE LED is slowly blinking.183 +Reset LDS12-LB and see if the BLUE LED is slowly blinking. 188 188 ))) 189 189 190 190 [[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"]] ... ... @@ -209,7 +209,6 @@ 209 209 * Smart liquefied gas solution 210 210 211 211 212 - 213 213 == 1.7 Precautions == 214 214 215 215 ... ... @@ -219,7 +219,6 @@ 219 219 220 220 * When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable. 221 221 222 - 223 223 (% style="display:none" %) 224 224 225 225 == 1.8 Sleep mode and working mode == ... ... @@ -250,11 +250,10 @@ 250 250 |(% 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. 251 251 252 252 253 - 254 254 == 1.10 BLE connection == 255 255 256 256 257 -D DS20-LB support BLE remote configure.250 +LDS12-LB support BLE remote configure. 258 258 259 259 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: 260 260 ... ... @@ -290,12 +290,12 @@ 290 290 [[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"]] 291 291 292 292 293 -= 2. Configure D DS20-LB to connect to LoRaWAN network =286 += 2. Configure LDS12-LB to connect to LoRaWAN network = 294 294 295 295 == 2.1 How it works == 296 296 297 297 298 -The D DS20-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.291 +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. 299 299 300 300 (% style="display:none" %) (%%) 301 301 ... ... @@ -309,9 +309,9 @@ 309 309 [[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %) 310 310 311 311 312 -(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from D DS20-LB.305 +(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from LDS12-LB. 313 313 314 -Each D DS20-LB is shipped with a sticker with the default device EUI as below:307 +Each LDS12-LB is shipped with a sticker with the default device EUI as below: 315 315 316 316 [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]] 317 317 ... ... @@ -340,10 +340,10 @@ 340 340 [[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"]] 341 341 342 342 343 -(% style="color:blue" %)**Step 2:**(%%) Activate on D DS20-LB336 +(% style="color:blue" %)**Step 2:**(%%) Activate on LDS12-LB 344 344 345 345 346 -Press the button for 5 seconds to activate the D DS20-LB.339 +Press the button for 5 seconds to activate the LDS12-LB. 347 347 348 348 (% 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. 349 349 ... ... @@ -354,7 +354,7 @@ 354 354 355 355 356 356 ((( 357 -D DS20-LB will uplink payload via LoRaWAN with below payload format:350 +LDS12-LB will uplink payload via LoRaWAN with below payload format: 358 358 ))) 359 359 360 360 ((( ... ... @@ -378,7 +378,7 @@ 378 378 === 2.3.1 Battery Info === 379 379 380 380 381 -Check the battery voltage for D DS20-LB.374 +Check the battery voltage for LDS12-LB. 382 382 383 383 Ex1: 0x0B45 = 2885mV 384 384 ... ... @@ -403,7 +403,6 @@ 403 403 * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid. 404 404 405 405 406 - 407 407 === 2.3.3 Interrupt Pin === 408 408 409 409 ... ... @@ -450,7 +450,7 @@ 450 450 The payload decoder function for TTN V3 is here: 451 451 452 452 ((( 453 -D DS20-LB TTN V3 Payload Decoder: [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]445 +LDS12-LB TTN V3 Payload Decoder: [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]] 454 454 ))) 455 455 456 456 ... ... @@ -457,7 +457,7 @@ 457 457 == 2.4 Uplink Interval == 458 458 459 459 460 -The D DS20-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 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"]] 461 461 462 462 463 463 == 2.5 Show Data in DataCake IoT Server == ... ... @@ -485,7 +485,7 @@ 485 485 486 486 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.** 487 487 488 -(% style="color:blue" %)**Step 4**(%%)**: Search the D DS20-LB and add DevEUI.**480 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDS12-LB and add DevEUI.** 489 489 490 490 [[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"]] 491 491 ... ... @@ -498,19 +498,19 @@ 498 498 == 2.6 Datalog Feature == 499 499 500 500 501 -Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, D DS20-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, LDS12-LB will store the reading for future retrieving purposes. 502 502 503 503 504 504 === 2.6.1 Ways to get datalog via LoRaWAN === 505 505 506 506 507 -Set PNACKMD=1, D DS20-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.499 +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. 508 508 509 509 * ((( 510 -a) D DS20-LB will do an ACK check for data records sending to make sure every data arrive server.502 +a) LDS12-LB will do an ACK check for data records sending to make sure every data arrive server. 511 511 ))) 512 512 * ((( 513 -b) D DS20-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.505 +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. 514 514 ))) 515 515 516 516 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1) ... ... @@ -521,7 +521,7 @@ 521 521 === 2.6.2 Unix TimeStamp === 522 522 523 523 524 -D DS20-LB uses Unix TimeStamp format based on516 +LDS12-LB uses Unix TimeStamp format based on 525 525 526 526 [[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"]] 527 527 ... ... @@ -540,7 +540,7 @@ 540 540 541 541 User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command. 542 542 543 -Once D DS20-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).535 +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). 544 544 545 545 (% 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.** 546 546 ... ... @@ -568,7 +568,7 @@ 568 568 ))) 569 569 570 570 ((( 571 -Uplink Internal =5s,means D DS20-LB will send one packet every 5s. range 5~~255s.563 +Uplink Internal =5s,means LDS12-LB will send one packet every 5s. range 5~~255s. 572 572 ))) 573 573 574 574 ... ... @@ -575,17 +575,17 @@ 575 575 == 2.7 Frequency Plans == 576 576 577 577 578 -The D DS20-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 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. 579 579 580 580 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]] 581 581 582 582 583 -= 3. Configure D DS20-LB =575 += 3. Configure LDS12-LB = 584 584 585 585 == 3.1 Configure Methods == 586 586 587 587 588 -D DS20-LB supports below configure method:580 +LDS12-LB supports below configure method: 589 589 590 590 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]]. 591 591 ... ... @@ -594,7 +594,6 @@ 594 594 * LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section. 595 595 596 596 597 - 598 598 == 3.2 General Commands == 599 599 600 600 ... ... @@ -609,10 +609,10 @@ 609 609 [[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/]] 610 610 611 611 612 -== 3.3 Commands special design for D DS20-LB ==603 +== 3.3 Commands special design for LDS12-LB == 613 613 614 614 615 -These commands only valid for D DS20-LB, as below:606 +These commands only valid for LDS12-LB, as below: 616 616 617 617 618 618 === 3.3.1 Set Transmit Interval Time === ... ... @@ -695,11 +695,10 @@ 695 695 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 696 696 697 697 698 - 699 699 = 4. Battery & Power Consumption = 700 700 701 701 702 -D DS20-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.692 +LDS12-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace. 703 703 704 704 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] . 705 705 ... ... @@ -708,7 +708,7 @@ 708 708 709 709 710 710 (% class="wikigeneratedid" %) 711 -User can change firmware D DS20-LB to:701 +User can change firmware LDS12-LB to: 712 712 713 713 * Change Frequency band/ region. 714 714 ... ... @@ -725,42 +725,40 @@ 725 725 * 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]]**. 726 726 727 727 728 - 729 729 = 6. FAQ = 730 730 731 -== 6.1 DS20-LB? ==720 +== 6.1 What is the frequency plan for LDS12-LB? == 732 732 733 733 734 -D DS20-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 +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"]] 735 735 736 736 737 -= =6.2Can IuseDDS20-LB in condensationenvironment?==726 += 7. Trouble Shooting = 738 738 728 +== 7.1 AT Command input doesn't work == 739 739 740 -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. 741 741 731 +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. 742 742 743 -= 7. Trouble Shooting = 744 744 745 -== 7. 1Why Ican'tjoinTTNV3inUS915/AU915bands?==734 +== 7.2 Significant error between the output distant value of LiDAR and actual distance == 746 746 747 747 748 -It is due to channel mapping. Please see below link: [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] 737 +((( 738 +(% 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.) 739 +))) 749 749 741 +((( 742 +Troubleshooting: Please avoid use of this product under such circumstance in practice. 743 +))) 750 750 751 -== 7.2 AT Command input doesn't work == 752 752 753 - 754 -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. 755 - 756 - 757 -== 7.3 Why i always see 0x0000 or 0 for the distance value? == 758 - 759 - 760 760 ((( 761 -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. 747 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked. 748 +))) 762 762 763 -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. 750 +((( 751 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter. 764 764 ))) 765 765 766 766 ... ... @@ -767,7 +767,7 @@ 767 767 = 8. Order Info = 768 768 769 769 770 -Part Number: (% style="color:blue" %)**D DS20-LB-XXX**758 +Part Number: (% style="color:blue" %)**LDS12-LB-XXX** 771 771 772 772 (% style="color:red" %)**XXX**(%%): **The default frequency band** 773 773 ... ... @@ -788,13 +788,12 @@ 788 788 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 789 789 790 790 791 - 792 792 = 9. Packing Info = 793 793 794 794 795 795 (% style="color:#037691" %)**Package Includes**: 796 796 797 -* D DS20-LB LoRaWANUltrasonicLiquid LevelSensor x 1784 +* LDS12-LB LoRaWAN LiDAR ToF Distance Sensor x 1 798 798 799 799 (% style="color:#037691" %)**Dimension and weight**: 800 800 ... ... @@ -807,7 +807,6 @@ 807 807 * Weight / pcs : g 808 808 809 809 810 - 811 811 = 10. Support = 812 812 813 813
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