Last modified by Xiaoling on 2025/04/27 16:45
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From version < 154.2 >
edited by Xiaoling
on 2022/06/15 09:00
To version < 150.52 >
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Title
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1 -LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual
1 +LDDS75 - LoRaWAN Distance Detection Sensor User Manual
Content
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1 1  (% style="text-align:center" %)
2 -[[image:1655254599445-662.png]]
2 +[[image:1654846127817-788.png]]
3 3  
4 +**Contents:**
4 4  
6 +{{toc/}}
5 5  
6 6  
7 -**Table of Contents:**
8 8  
9 9  
10 10  
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11 11  
12 12  
13 13  
14 -
15 -
16 16  = 1.  Introduction =
17 17  
18 -== 1.1 ​ What is LoRaWAN Ultrasonic liquid level Sensor ==
17 +== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
19 19  
20 20  (((
21 21  
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26 26  )))
27 27  
28 28  (((
28 +
29 +)))
30 +
31 +(((
29 29  It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
30 30  )))
31 31  
32 32  (((
36 +
37 +)))
38 +
39 +(((
33 33  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.
34 34  )))
35 35  
36 36  (((
44 +
45 +)))
46 +
47 +(((
37 37  LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
38 38  )))
39 39  
40 40  (((
52 +
53 +)))
54 +
55 +(((
41 41  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.
42 42  )))
43 43  
44 44  (((
60 +
61 +)))
62 +
63 +(((
45 45  (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
46 46  )))
47 47  )))
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67 67  * IP66 Waterproof Enclosure
68 68  * 4000mAh or 8500mAh Battery for long term use
69 69  
70 -
71 71  == 1.3  Specification ==
72 72  
73 73  === 1.3.1  Rated environmental conditions ===
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75 75  [[image:image-20220610154839-1.png]]
76 76  
77 77  (((
78 -**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
79 -
80 -**~ 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)**
96 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  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)**
81 81  )))
82 82  
83 83  
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150 150  )))
151 151  
152 152  (((
153 -
154 -
155 155  (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
156 156  )))
157 157  
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171 171  )))
172 172  
173 173  (((
174 -
175 -
176 176  **Add APP EUI in the application**
177 177  )))
178 178  
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273 273  * 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.
274 274  
275 275  
288 +
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  
865 +
866 +
852 852  == 2.8  ​Firmware Change Log ==
853 853  
854 854  
855 -(((
856 856  **Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
857 -)))
858 858  
859 -(((
860 -
861 -)))
862 862  
863 -(((
864 864  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
865 -)))
866 866  
867 867  
868 868  
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1006 1006  [[image:image-20220610172924-5.png]]
1007 1007  
1008 1008  
1009 -(((
1010 1010  In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below:
1011 -)))
1012 1012  
1013 1013  
1014 1014   [[image:image-20220610172924-6.png||height="601" width="860"]]
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1032 1032  (((
1033 1033  Format: Command Code (0x01) followed by 3 bytes time value.
1034 1034  
1035 -(((
1036 1036  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1037 -)))
1038 1038  
1039 1039  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1040 1040  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1041 1041  )))
1042 -)))
1043 1043  
1044 1044  
1048 +
1049 +)))
1045 1045  
1046 -
1047 -
1048 1048  == 3.3  Set Interrupt Mode ==
1049 1049  
1050 1050  Feature, Set Interrupt mode for GPIO_EXIT.
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1058 1058  
1059 1059  Format: Command Code (0x06) followed by 3 bytes.
1060 1060  
1061 -(((
1062 1062  This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1063 -)))
1064 1064  
1065 1065  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1066 1066  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1067 1067  
1068 -
1069 1069  = 4.  FAQ =
1070 1070  
1071 1071  == 4.1  What is the frequency plan for LDDS75? ==
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1125 1125  * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1126 1126  * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1127 1127  
1128 -
1129 1129  = 7. ​ Packing Info =
1130 1130  
1131 1131  
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1140 1140  * Package Size / pcs : cm
1141 1141  * Weight / pcs : g
1142 1142  
1143 -
1144 1144  = 8.  ​Support =
1145 1145  
1146 1146  * 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.
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