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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 151.2
edited by Xiaoling
on 2022/06/11 09:30
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 +
29 +)))
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 +
37 +)))
38 +
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  (((
44 +
45 +)))
46 +
47 +(((
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  (((
52 +
53 +)))
54 +
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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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61 +)))
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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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72 72  
73 73  
74 74  
91 +
92 +
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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848 848  * Solid ON for 5 seconds once device successful Join the network.
849 849  * Blink once when device transmit a packet.
850 850  
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  
1057 +
1058 +)))
1046 1046  
1047 -
1048 -
1049 1049  == 3.3  Set Interrupt Mode ==
1050 1050  
1051 1051  Feature, Set Interrupt mode for GPIO_EXIT.
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1067 1067  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1068 1068  
1069 1069  
1070 -
1071 1071  = 4.  FAQ =
1072 1072  
1073 1073  == 4.1  What is the frequency plan for LDDS75? ==
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1128 1128  * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1129 1129  
1130 1130  
1131 -
1132 1132  = 7. ​ Packing Info =
1133 1133  
1134 1134  
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1144 1144  * Weight / pcs : g
1145 1145  
1146 1146  
1147 -
1148 1148  = 8.  ​Support =
1149 1149  
1150 1150  * 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.