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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 73.12
edited by Xiaoling
on 2023/06/13 12:00
Change comment: Update document after refactoring.
To version 75.1
edited by Xiaoling
on 2023/06/13 13:37
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1 -DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual
1 +DDS20-LB -- LoRaWAN Ultrasonic Liquid Level Sensor User Manual
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51 51  * 8500mAh Battery for long term use
52 52  
53 53  
54 -
55 55  == 1.3 Specification ==
56 56  
57 57  
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81 81  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
82 82  
83 83  
84 -
85 85  == 1.4 Rated environmental conditions ==
86 86  
87 87  
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137 137  * Bottom water level monitoring
138 138  
139 139  
140 -
141 141  == 1.7 Sleep mode and working mode ==
142 142  
143 143  
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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  
168 168  
169 -
170 170  == 1.9 BLE connection ==
171 171  
172 172  
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316 316  * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
317 317  
318 318  
319 -
320 320  === 2.3.3  Interrupt Pin ===
321 321  
322 322  
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508 508  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
509 509  
510 510  
511 -
512 512  == 3.2 General Commands ==
513 513  
514 514  
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572 572  )))
573 573  
574 574  
575 -
576 576  === 3.3.2 Set Interrupt Mode ===
577 577  
578 578  
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608 608  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
609 609  
610 610  
611 -
612 612  = 4. Battery & Power Consumption =
613 613  
614 614  
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638 638  * 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]]**.
639 639  
640 640  
641 -
642 642  = 6. FAQ =
643 643  
644 644  == 6.1  What is the frequency plan for DDS45-LB? ==
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722 722  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
723 723  
724 724  
725 -
726 726  = 9. ​Packing Info =
727 727  
728 728  
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741 741  * Weight / pcs : g
742 742  
743 743  
744 -
745 745  = 10. Support =
746 746  
747 747  
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