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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.11
edited by Xiaoling
on 2022/06/15 10:58
Change comment: There is no comment for this version
To version 175.22
edited by Xiaoling
on 2022/06/15 11:09
Change comment: There is no comment for this version

Summary

Details

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Content
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100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 +
104 +
105 +
103 103  == 1.3  Suitable Container & Liquid ==
104 104  
105 105  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
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109 109  ** Pure non metal material: <10 mm
110 110  * Pure liquid without irregular deposition.
111 111  
115 +
116 +
117 +
112 112  == 1.4  Mechanical ==
113 113  
114 114  [[image:image-20220615090910-1.png]]
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198 198  * Smart liquid control solution.
199 199  * Smart liquefied gas solution.
200 200  
207 +
208 +
209 +
201 201  == 1.7  Precautions ==
202 202  
203 203  * At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
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204 204  * For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
205 205  * 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.
206 206  
216 +
217 +
218 +
207 207  == 1.8  Pin mapping and power on ==
208 208  
209 209  
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362 362  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
363 363  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
364 364  
377 +
378 +
379 +
365 365  === 2.3.3  Interrupt Pin ===
366 366  
367 367  This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.2A0SetInterruptMode"]] for the hardware and software set up.
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723 723  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
724 724  
725 725  
741 +
726 726  = 4.  FAQ =
727 727  
728 728  == 4.1  What is the frequency plan for LDDS20? ==
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738 738  
739 739  
740 740  
741 -== 4.3  Can I use LDDS75 in condensation environment? ==
742 -
743 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
744 -
745 -
746 -
747 747  = 5.  Trouble Shooting =
748 748  
749 749  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
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763 763  = 6.  Order Info =
764 764  
765 765  
766 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
776 +Part Number **:** (% style="color:blue" %)**LDDS20-XX**
767 767  
768 768  
769 769  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
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777 777  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
778 778  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
779 779  
780 -(% style="color:blue" %)**YY**(%%): Battery Option
781 781  
782 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
783 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
784 -
785 785  = 7. ​ Packing Info =
786 786  
787 787  
788 788  **Package Includes**:
789 789  
790 -* LDDS75 LoRaWAN Distance Detection Sensor x 1
796 +* LDDS20 LoRaWAN Liquid Level Sensor x 1
791 791  
798 +
799 +(% style="color:red" %)**Note:**
800 +
801 +(% style="color:red" %)**Ultrasonic coupling paste**(%%) and(% style="color:red" %)** Eproxy AB glue**(%%) are subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
802 +
803 +
792 792  **Dimension and weight**:
793 793  
794 794  * Device Size: cm
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796 796  * Package Size / pcs : cm
797 797  * Weight / pcs : g
798 798  
811 +
799 799  = 8.  ​Support =
800 800  
801 801  * 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.