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 ... ... @@ -50,11 +50,36 @@ 50 50 * IP66 Waterproof Enclosure 51 51 * 8500mAh Battery for long term use 52 52 53 +== 1.3 Specification == 53 53 54 54 55 - ==1.3Specification==56 +(% style="color:#037691" %)**Rated environmental conditions:** 56 56 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 + 57 57 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 + 58 58 (% style="color:#037691" %)**Common DC Characteristics:** 59 59 60 60 * Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v ... ... @@ -80,50 +80,20 @@ 80 80 * Sleep Mode: 5uA @ 3.3v 81 81 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm 82 82 108 +== 1.4 Effective measurement range Reference beam pattern == 83 83 84 84 85 - ==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.** 86 86 87 - 88 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %) 89 -|(% style="background-color:#d9e2f3; color:#0070c0; width:163px" %)**Item**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)((( 90 -**Minimum value** 91 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)((( 92 -**Typical value** 93 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:87px" %)((( 94 -**Maximum value** 95 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**Unit**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Remarks** 96 -|(% style="width:174px" %)Storage temperature|(% style="width:86px" %)-25|(% style="width:66px" %)25|(% style="width:90px" %)80|(% style="width:48px" %)℃|(% style="width:203px" %) 97 -|(% style="width:174px" %)Storage humidity|(% style="width:86px" %) |(% style="width:66px" %)65%|(% style="width:90px" %)90%|(% style="width:48px" %)RH|(% style="width:203px" %)(1) 98 -|(% style="width:174px" %)Operating temperature|(% style="width:86px" %)-15|(% style="width:66px" %)25|(% style="width:90px" %)60|(% style="width:48px" %)℃|(% style="width:203px" %) 99 -|(% style="width:174px" %)Working humidity|(% style="width:86px" %)((( 100 - 101 - 102 - 103 -)))|(% style="width:66px" %)65%|(% style="width:90px" %)80%|(% style="width:48px" %)RH|(% style="width:203px" %)(1) 104 - 105 -((( 106 -(% style="color:red" %)**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing); ** 107 - 108 -(% 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)** 109 - 110 - 111 -))) 112 - 113 -== 1.5 Effective measurement range Reference beam pattern == 114 - 115 - 116 -(% 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.** 117 - 118 118 [[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"]] 119 119 120 120 121 - (% 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.** 122 122 123 123 [[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"]] 124 124 125 125 126 -== 1. 6Applications ==121 +== 1.5 Applications == 127 127 128 128 129 129 * Horizontal distance measurement ... ... @@ -136,17 +136,15 @@ 136 136 * Sewer 137 137 * Bottom water level monitoring 138 138 134 +== 1.6 Sleep mode and working mode == 139 139 140 140 141 -== 1.7 Sleep mode and working mode == 142 - 143 - 144 144 (% 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. 145 145 146 146 (% 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. 147 147 148 148 149 -== 1. 8Button & LEDs ==142 +== 1.7 Button & LEDs == 150 150 151 151 152 152 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]] ... ... @@ -165,11 +165,9 @@ 165 165 ))) 166 166 |(% 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. 167 167 161 +== 1.8 BLE connection == 168 168 169 169 170 -== 1.9 BLE connection == 171 - 172 - 173 173 DDS75-LB support BLE remote configure. 174 174 175 175 ... ... @@ -182,14 +182,16 @@ 182 182 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode. 183 183 184 184 185 -== 1. 10Pin Definitions ==176 +== 1.9 Pin Definitions == 186 186 187 187 [[image:image-20230523174230-1.png]] 188 188 189 189 190 -== 1.11Mechanical==181 +== == 191 191 183 +== 2.10 Mechanical == 192 192 185 + 193 193 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]] 194 194 195 195 ... ... @@ -199,7 +199,7 @@ 199 199 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]] 200 200 201 201 202 - (% style="color:blue" %)**Probe Mechanical:**195 +**Probe Mechanical:** 203 203 204 204 205 205 [[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"]] ... ... @@ -275,13 +275,20 @@ 275 275 276 276 277 277 ((( 271 +((( 278 278 DDS75-LB will uplink payload via LoRaWAN with below payload format: 279 279 ))) 280 280 281 281 ((( 282 -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 283 283 ))) 279 +))) 284 284 281 +((( 282 + 283 +))) 284 + 285 285 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %) 286 286 |=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)((( 287 287 **Size(bytes)** ... ... @@ -321,14 +321,12 @@ 321 321 322 322 323 323 * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor. 324 -* 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. 325 325 326 - 327 - 328 328 === 2.3.3 Interrupt Pin === 329 329 330 330 331 -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. 332 332 333 333 **Example:** 334 334 ... ... @@ -348,7 +348,9 @@ 348 348 349 349 If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees. 350 350 349 +(% style="color:red" %)**Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.** 351 351 351 + 352 352 === 2.3.5 Sensor Flag === 353 353 354 354 ... ... @@ -378,7 +378,7 @@ 378 378 == 2.4 Uplink Interval == 379 379 380 380 381 -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>>||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"]] 382 382 383 383 384 384 == 2.5 Show Data in DataCake IoT Server == ... ... @@ -388,6 +388,9 @@ 388 388 [[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: 389 389 ))) 390 390 391 +((( 392 + 393 +))) 391 391 392 392 ((( 393 393 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.** ... ... @@ -462,7 +462,7 @@ 462 462 463 463 User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command. 464 464 465 -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). 466 466 467 467 (% 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.** 468 468 ... ... @@ -502,7 +502,7 @@ 502 502 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]] 503 503 504 504 505 -= 3. Configure DDS75-LB =508 += 3. Configure SW3L-LB = 506 506 507 507 == 3.1 Configure Methods == 508 508 ... ... @@ -515,8 +515,6 @@ 515 515 516 516 * LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section. 517 517 518 - 519 - 520 520 == 3.2 General Commands == 521 521 522 522 ... ... @@ -577,9 +577,6 @@ 577 577 ))) 578 578 * ((( 579 579 Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 580 - 581 - 582 - 583 583 ))) 584 584 585 585 === 3.3.2 Set Interrupt Mode === ... ... @@ -616,8 +616,6 @@ 616 616 617 617 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 618 618 619 - 620 - 621 621 = 4. Battery & Power Consumption = 622 622 623 623 ... ... @@ -638,80 +638,27 @@ 638 638 639 639 * Fix bugs. 640 640 641 -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]]** 642 642 643 643 Methods to Update Firmware: 644 644 645 -* (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/]] 646 646 647 -* 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]]**. 648 648 649 - 650 - 651 651 = 6. FAQ = 652 652 653 -== 6.1 Whatis thefrequencyplan forDDS75-LB?==647 +== 6.1 AT Commands input doesn't work == 654 654 655 655 656 - 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. 657 657 658 658 659 -= =6.2Can I use DDS75-LB in condensationenvironment?==653 += 7. Order Info = 660 660 661 661 662 - 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** 663 663 664 - 665 -= 7. Trouble Shooting = 666 - 667 -== 7.1 Why I can't join TTN V3 in US915 / AU915 bands? == 668 - 669 - 670 -It is due to channel mapping. Please see below link: [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] 671 - 672 - 673 -== 7.2 AT Command input doesn't work == 674 - 675 - 676 -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. 677 - 678 - 679 -== 7.3 Why does the sensor reading show 0 or "No sensor" == 680 - 681 - 682 -~1. The measurement object is very close to the sensor, but in the blind spot of the sensor. 683 - 684 -2. Sensor wiring is disconnected 685 - 686 -3. Not using the correct decoder 687 - 688 - 689 -== 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 == 690 - 691 - 692 -1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.) 693 - 694 -2) Does it change with temperature, temperature will affect its measurement 695 - 696 -3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode. 697 - 698 -downlink command: (% style="color:blue" %)**F1 01**(%%), AT command: (% style="color:blue" %)**AT+DDEBUG=1** 699 - 700 -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 701 - 702 -[[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"]] 703 - 704 - 705 -Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data. 706 - 707 -Please send the data to us for check. 708 - 709 - 710 -= 8. Order Info = 711 - 712 - 713 -Part Number: (% style="color:blue" %)**DDS75-LB-XXX** 714 - 715 715 (% style="color:red" %)**XXX**(%%): **The default frequency band** 716 716 717 717 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band ... ... @@ -730,11 +730,40 @@ 730 730 731 731 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 732 732 676 +((( 677 +(% style="color:blue" %)**YYY**(%%): **Flow Sensor Model:** 678 +))) 733 733 680 +((( 681 + (% style="color:blue" %) **004:**(%%) DW-004 Flow Sensor: diameter: G1/2” / DN15. 450 pulse = 1 L 682 +))) 734 734 735 -= 9. Packing Info = 684 +((( 685 + (% style="color:blue" %) **006:**(%%) DW-006 Flow Sensor: diameter: G3/4” / DN20. 390 pulse = 1 L 686 +))) 736 736 688 +((( 689 + (% style="color:blue" %) **010:**(%%) DW-010 Flow Sensor: diameter: G 1” / DN25. 64 pulse = 1 L 690 +))) 737 737 692 +* ((( 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 + 738 738 (% style="color:#037691" %)**Package Includes**: 739 739 740 740 * DDS75-LB LoRaWAN Distance Detection Sensor x 1 ... ... @@ -749,11 +749,9 @@ 749 749 750 750 * Weight / pcs : g 751 751 724 += 9. Support = 752 752 753 753 754 -= 10. Support = 755 - 756 - 757 757 * 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. 758 758 759 759 * 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]].