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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... ... @@ -22,13 +22,13 @@ 22 22 23 23 It detects the distance(% style="color:blue" %)** between the measured object and the sensor**(%%), and uploads the value via wireless to LoRaWAN IoT Server. 24 24 25 -The LoRa wireless technology used in DDS75-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.25 +The LoRa wireless technology used in SW3L-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. 26 26 27 - DDS75-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.27 +SW3L-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use. 28 28 29 - DDS75-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.29 +SW3L-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years. 30 30 31 -Each DDS75-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.31 +Each SW3L-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. 32 32 33 33 [[image:image-20230612170943-2.png||height="525" width="912"]] 34 34 ... ... @@ -50,10 +50,36 @@ 50 50 * IP66 Waterproof Enclosure 51 51 * 8500mAh Battery for long term use 52 52 53 - 54 54 == 1.3 Specification == 55 55 56 56 56 +(% style="color:#037691" %)**Rated environmental conditions:** 57 + 58 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %) 59 +|(% style="background-color:#d9e2f3; color:#0070c0; width:163px" %)**Item**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)((( 60 +**Minimum value** 61 +)))|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)((( 62 +**Typical value** 63 +)))|(% style="background-color:#d9e2f3; color:#0070c0; width:87px" %)((( 64 +**Maximum value** 65 +)))|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**Unit**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Remarks** 66 +|(% style="width:174px" %)Storage temperature|(% style="width:86px" %)-25|(% style="width:66px" %)25|(% style="width:90px" %)80|(% style="width:48px" %)℃|(% style="width:203px" %) 67 +|(% style="width:174px" %)Storage humidity|(% style="width:86px" %) |(% style="width:66px" %)65%|(% style="width:90px" %)90%|(% style="width:48px" %)RH|(% style="width:203px" %)(1) 68 +|(% style="width:174px" %)Operating temperature|(% style="width:86px" %)-15|(% style="width:66px" %)25|(% style="width:90px" %)60|(% style="width:48px" %)℃|(% style="width:203px" %) 69 +|(% style="width:174px" %)Working humidity|(% style="width:86px" %)((( 70 + 71 + 72 + 73 +)))|(% style="width:66px" %)65%|(% style="width:90px" %)80%|(% style="width:48px" %)RH|(% style="width:203px" %)(1) 74 + 75 +((( 76 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing); ** 77 + 78 +**~ b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)** 79 + 80 + 81 +))) 82 + 57 57 (% style="color:#037691" %)**Common DC Characteristics:** 58 58 59 59 * Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v ... ... @@ -79,50 +79,20 @@ 79 79 * Sleep Mode: 5uA @ 3.3v 80 80 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm 81 81 108 +== 1.4 Effective measurement range Reference beam pattern == 82 82 83 83 84 - ==1.4Rated environmentalconditions==111 +**~1. The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.** 85 85 86 - 87 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %) 88 -|(% style="background-color:#d9e2f3; color:#0070c0; width:163px" %)**Item**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)((( 89 -**Minimum value** 90 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)((( 91 -**Typical value** 92 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:87px" %)((( 93 -**Maximum value** 94 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**Unit**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Remarks** 95 -|(% style="width:174px" %)Storage temperature|(% style="width:86px" %)-25|(% style="width:66px" %)25|(% style="width:90px" %)80|(% style="width:48px" %)℃|(% style="width:203px" %) 96 -|(% style="width:174px" %)Storage humidity|(% style="width:86px" %) |(% style="width:66px" %)65%|(% style="width:90px" %)90%|(% style="width:48px" %)RH|(% style="width:203px" %)(1) 97 -|(% style="width:174px" %)Operating temperature|(% style="width:86px" %)-15|(% style="width:66px" %)25|(% style="width:90px" %)60|(% style="width:48px" %)℃|(% style="width:203px" %) 98 -|(% style="width:174px" %)Working humidity|(% style="width:86px" %)((( 99 - 100 - 101 - 102 -)))|(% style="width:66px" %)65%|(% style="width:90px" %)80%|(% style="width:48px" %)RH|(% style="width:203px" %)(1) 103 - 104 -((( 105 -(% style="color:red" %)**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing); ** 106 - 107 -(% style="color:red" %)** b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)** 108 - 109 - 110 -))) 111 - 112 -== 1.5 Effective measurement range Reference beam pattern == 113 - 114 - 115 -(% style="color:blue" %)**1. The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.** 116 - 117 117 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852253176-749.png?rev=1.1||alt="1654852253176-749.png"]] 118 118 119 119 120 - (% style="color:blue" %)**2. The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.**116 +**2. The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.** 121 121 122 122 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852175653-550.png?rev=1.1||alt="1654852175653-550.png"]] 123 123 124 124 125 -== 1. 6Applications ==121 +== 1.5 Applications == 126 126 127 127 128 128 * Horizontal distance measurement ... ... @@ -135,17 +135,15 @@ 135 135 * Sewer 136 136 * Bottom water level monitoring 137 137 134 +== 1.6 Sleep mode and working mode == 138 138 139 139 140 -== 1.7 Sleep mode and working mode == 141 - 142 - 143 143 (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life. 144 144 145 145 (% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode. 146 146 147 147 148 -== 1. 8Button & LEDs ==142 +== 1.7 Button & LEDs == 149 149 150 150 151 151 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]] ... ... @@ -164,11 +164,9 @@ 164 164 ))) 165 165 |(% 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. 166 166 161 +== 1.8 BLE connection == 167 167 168 168 169 -== 1.9 BLE connection == 170 - 171 - 172 172 DDS75-LB support BLE remote configure. 173 173 174 174 ... ... @@ -181,14 +181,16 @@ 181 181 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode. 182 182 183 183 184 -== 1. 10Pin Definitions ==176 +== 1.9 Pin Definitions == 185 185 186 186 [[image:image-20230523174230-1.png]] 187 187 188 188 189 -== 1.11Mechanical==181 +== == 190 190 183 +== 2.10 Mechanical == 191 191 185 + 192 192 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]] 193 193 194 194 ... ... @@ -198,7 +198,7 @@ 198 198 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]] 199 199 200 200 201 - (% style="color:blue" %)**Probe Mechanical:**195 +**Probe Mechanical:** 202 202 203 203 204 204 [[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-20220610172003-1.png?rev=1.1||alt="image-20220610172003-1.png"]] ... ... @@ -274,13 +274,20 @@ 274 274 275 275 276 276 ((( 271 +((( 277 277 DDS75-LB will uplink payload via LoRaWAN with below payload format: 278 278 ))) 279 279 280 280 ((( 281 -Uplink payload includes in total 8 bytes. 276 +Uplink payload includes in total 4 bytes. 277 +Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance 282 282 ))) 279 +))) 283 283 281 +((( 282 + 283 +))) 284 + 284 284 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %) 285 285 |=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)((( 286 286 **Size(bytes)** ... ... @@ -320,14 +320,12 @@ 320 320 321 321 322 322 * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor. 323 -* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. All value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.324 +* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid. 324 324 325 - 326 - 327 327 === 2.3.3 Interrupt Pin === 328 328 329 329 330 -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.329 +This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up. 331 331 332 332 **Example:** 333 333 ... ... @@ -347,7 +347,9 @@ 347 347 348 348 If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees. 349 349 349 +(% style="color:red" %)**Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.** 350 350 351 + 351 351 === 2.3.5 Sensor Flag === 352 352 353 353 ... ... @@ -377,7 +377,7 @@ 377 377 == 2.4 Uplink Interval == 378 378 379 379 380 -The DDS75-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="H 3.3.1SetTransmitIntervalTime"]]381 +The DDS75-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>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]] 381 381 382 382 383 383 == 2.5 Show Data in DataCake IoT Server == ... ... @@ -387,6 +387,9 @@ 387 387 [[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps: 388 388 ))) 389 389 391 +((( 392 + 393 +))) 390 390 391 391 ((( 392 392 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.** ... ... @@ -461,7 +461,7 @@ 461 461 462 462 User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command. 463 463 464 -Once DDS75-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DDS75-LB. If DDS75-LB fails to get the time from the server, DDS75-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).468 +Once DDS75-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to SW3L-LB. If DDS75-LB fails to get the time from the server, DDS75-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days). 465 465 466 466 (% 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.** 467 467 ... ... @@ -501,7 +501,7 @@ 501 501 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]] 502 502 503 503 504 -= 3. Configure DDS75-LB =508 += 3. Configure SW3L-LB = 505 505 506 506 == 3.1 Configure Methods == 507 507 ... ... @@ -514,8 +514,6 @@ 514 514 515 515 * LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section. 516 516 517 - 518 - 519 519 == 3.2 General Commands == 520 520 521 521 ... ... @@ -576,9 +576,6 @@ 576 576 ))) 577 577 * ((( 578 578 Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 579 - 580 - 581 - 582 582 ))) 583 583 584 584 === 3.3.2 Set Interrupt Mode === ... ... @@ -615,8 +615,6 @@ 615 615 616 616 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 617 617 618 - 619 - 620 620 = 4. Battery & Power Consumption = 621 621 622 622 ... ... @@ -637,80 +637,27 @@ 637 637 638 638 * Fix bugs. 639 639 640 -Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/ 7la95mae0fn03xe/AACtzs-32m22TLb75B-iIr-Qa?dl=0]]**637 +Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/kwqv57tp6pejias/AAAopYMATh1GM6fZ-VRCLrpDa?dl=0]]** 641 641 642 642 Methods to Update Firmware: 643 643 644 -* (Recommanded way) OTA firmware update via wireless: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]] 641 +* (Recommanded way) OTA firmware update via wireless: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]] 645 645 646 -* 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]]**.643 +* 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]]**. 647 647 648 - 649 - 650 650 = 6. FAQ = 651 651 652 -== 6.1 Whatis thefrequencyplan forDDS75-LB?==647 +== 6.1 AT Commands input doesn't work == 653 653 654 654 655 - DDS75-LBusethesame frequencyasotherDraginoproducts.Usercanseethe detail fromthis link:[[Introduction>>doc:Main.EndDeviceFrequencyBand.WebHome||anchor="H1.Introduction"]]650 +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:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string. 656 656 657 657 658 -= =6.2Can I use DDS75-LB in condensationenvironment?==653 += 7. Order Info = 659 659 660 660 661 - DDS75-LB is notsuitable to beused incondensation environment.Condensation on theDDS75-LBprobe will affect the reading and always got 0.656 +Part Number: (% style="color:blue" %)**DDS75-LB-XXX-YYY** 662 662 663 - 664 -= 7. Trouble Shooting = 665 - 666 -== 7.1 Why I can't join TTN V3 in US915 / AU915 bands? == 667 - 668 - 669 -It is due to channel mapping. Please see below link: [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] 670 - 671 - 672 -== 7.2 AT Command input doesn't work == 673 - 674 - 675 -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. 676 - 677 - 678 -== 7.3 Why does the sensor reading show 0 or "No sensor" == 679 - 680 - 681 -~1. The measurement object is very close to the sensor, but in the blind spot of the sensor. 682 - 683 -2. Sensor wiring is disconnected 684 - 685 -3. Not using the correct decoder 686 - 687 - 688 -== 7.4 Abnormal readings The gap between multiple readings is too large or the gap between the readings and the actual value is too large == 689 - 690 - 691 -1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.) 692 - 693 -2) Does it change with temperature, temperature will affect its measurement 694 - 695 -3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode. 696 - 697 -downlink command: (% style="color:blue" %)**F1 01**(%%), AT command: (% style="color:blue" %)**AT+DDEBUG=1** 698 - 699 -4) After entering the debug mode, it will send 20 pieces of data at a time, and you can send its uplink to us for analysis 700 - 701 -[[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-20230113135125-2.png?width=1057&height=136&rev=1.1||alt="image-20230113135125-2.png"]] 702 - 703 - 704 -Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data. 705 - 706 -Please send the data to us for check. 707 - 708 - 709 -= 8. Order Info = 710 - 711 - 712 -Part Number: (% style="color:blue" %)**DDS75-LB-XXX** 713 - 714 714 (% style="color:red" %)**XXX**(%%): **The default frequency band** 715 715 716 716 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band ... ... @@ -729,11 +729,40 @@ 729 729 730 730 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 731 731 676 +((( 677 +(% style="color:blue" %)**YYY**(%%): **Flow Sensor Model:** 678 +))) 732 732 680 +((( 681 + (% style="color:blue" %) **004:**(%%) DW-004 Flow Sensor: diameter: G1/2” / DN15. 450 pulse = 1 L 682 +))) 733 733 734 -= 9. Packing Info = 684 +((( 685 + (% style="color:blue" %) **006:**(%%) DW-006 Flow Sensor: diameter: G3/4” / DN20. 390 pulse = 1 L 686 +))) 735 735 688 +((( 689 + (% style="color:blue" %) **010:**(%%) DW-010 Flow Sensor: diameter: G 1” / DN25. 64 pulse = 1 L 690 +))) 736 736 692 +* ((( 693 +calculate flag=0: for SW3L-004 Flow Sensor: 450 pulse = 1 L 694 +))) 695 + 696 +* ((( 697 +calculate flag=1: for SW3L-006 Flow Sensor: 390 pulse = 1 L 698 +))) 699 + 700 +* ((( 701 +calculate flag=2: for SW3L-010 Flow Sensor: 64 pulse = 1 L 702 + 703 + 704 + 705 +))) 706 + 707 += 8. Packing Info = 708 + 709 + 737 737 (% style="color:#037691" %)**Package Includes**: 738 738 739 739 * DDS75-LB LoRaWAN Distance Detection Sensor x 1 ... ... @@ -748,11 +748,9 @@ 748 748 749 749 * Weight / pcs : g 750 750 724 += 9. Support = 751 751 752 752 753 -= 10. Support = 754 - 755 - 756 756 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule. 757 757 758 758 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[Support@dragino.cc>>mailto:Support@dragino.cc]].