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Last modified by Xiaoling on 2025/04/27 16:45
From version 152.3
edited by Xiaoling
on 2022/06/14 17:18
Change comment: There is no comment for this version
To version 151.1
edited by Xiaoling
on 2022/06/11 09:25
Change comment: There is no comment for this version

Summary

Details

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Content
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1 1  (% style="text-align:center" %)
2 2  [[image:1654846127817-788.png]]
3 3  
4 +**Contents:**
4 4  
5 -
6 -
7 -
8 -**Table of Contents:**
9 -
10 10  {{toc/}}
11 11  
12 12  
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29 29  )))
30 30  
31 31  (((
28 +
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30 +
31 +(((
32 32  It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
33 33  )))
34 34  
35 35  (((
36 +
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39 +(((
36 36  The LoRa wireless technology used in LDDS75 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.
37 37  )))
38 38  
39 39  (((
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40 40  LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
41 41  )))
42 42  
43 43  (((
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44 44  Each LDDS75 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
45 45  )))
46 46  
47 47  (((
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48 48  (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
49 49  )))
50 50  )))
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70 70  * IP66 Waterproof Enclosure
71 71  * 4000mAh or 8500mAh Battery for long term use
72 72  
73 -
74 -
75 75  == 1.3  Specification ==
76 76  
77 77  === 1.3.1  Rated environmental conditions ===
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115 115  * Sewer
116 116  * Bottom water level monitoring
117 117  
118 -
119 -
120 120  == 1.6  Pin mapping and power on ==
121 121  
122 122  
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271 271  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
272 272  * 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.
273 273  
274 -
275 -
276 276  === 2.3.3  Interrupt Pin ===
277 277  
278 278  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.
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849 849  * Blink once when device transmit a packet.
850 850  
851 851  
852 -
853 853  == 2.8  ​Firmware Change Log ==
854 854  
855 855  
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1040 1040  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1041 1041  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1042 1042  )))
1043 -)))
1044 1044  
1045 1045  
1054 +
1055 +)))
1046 1046  
1047 -
1048 -
1049 1049  == 3.3  Set Interrupt Mode ==
1050 1050  
1051 1051  Feature, Set Interrupt mode for GPIO_EXIT.