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Last modified by Xiaoling on 2025/04/27 13:54
From version 150.35
edited by Xiaoling
on 2022/06/11 09:11
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To version 154.6
edited by Xiaoling
on 2022/06/11 10:14
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Title
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1 -LDDS75 - LoRaWAN Distance Detection Sensor User Manual
1 +LDDS45 - LoRaWAN Distance Detection Sensor User Manual
Content
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1 1  (% style="text-align:center" %)
2 -[[image:1654846127817-788.png]]
2 +[[image:1654912614655-664.png||height="530" width="628"]]
3 3  
4 4  **Contents:**
5 5  
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21 21  
22 22  (((
23 23  (((
24 -The Dragino LDDS75 is a (% style="color:#4472c4" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:#4472c4" %)** ultrasonic sensing** (%%)technology for distance measurement, and (% style="color:#4472c4" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The LDDS75 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
24 +The Dragino LDDS45 is a (% style="color:#4472c4" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:#4472c4" %)** ultrasonic sensing** (%%)technology for distance measurement, and (% style="color:#4472c4" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The LDDS45 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
25 25  )))
26 26  
27 27  (((
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37 37  )))
38 38  
39 39  (((
40 -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.
40 +The LoRa wireless technology used in LDDS45 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.
41 41  )))
42 42  
43 43  (((
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45 45  )))
46 46  
47 47  (((
48 -LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
48 +LDDS45 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
49 49  )))
50 50  
51 51  (((
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53 53  )))
54 54  
55 55  (((
56 -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.
56 +Each LDDS45 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.
57 57  )))
58 58  
59 59  (((
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62 62  
63 63  (((
64 64  (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
65 +
66 +
65 65  )))
66 66  )))
67 67  )))
68 68  
71 +[[image:1654912858581-740.png]]
69 69  
70 -[[image:1654847051249-359.png]]
71 71  
72 72  
73 73  
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74 74  == ​1.2  Features ==
75 75  
76 76  * LoRaWAN 1.0.3 Class A
77 -* Ultra low power consumption
79 +* Ultra-low power consumption
78 78  * Distance Detection by Ultrasonic technology
79 -* Flat object range 280mm - 7500mm
81 +* Flat object range 30mm - 4500mm
80 80  * Accuracy: ±(1cm+S*0.3%) (S: Distance)
83 +* Measure Angle: 60°
81 81  * Cable Length : 25cm
82 82  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
83 83  * AT Commands to change parameters
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84 84  * Uplink on periodically
85 85  * Downlink to change configure
86 86  * IP66 Waterproof Enclosure
87 -* 4000mAh or 8500mAh Battery for long term use
90 +* 8500mAh Battery for long term use
88 88  
92 +
93 +
89 89  == 1.3  Specification ==
90 90  
91 91  === 1.3.1  Rated environmental conditions ===
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92 92  
93 93  [[image:image-20220610154839-1.png]]
94 94  
95 -**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
96 96  
97 -**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)**
101 +(((
102 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  **
98 98  
104 +**~ 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)**
105 +)))
99 99  
100 100  
108 +
101 101  === 1.3.2  Effective measurement range Reference beam pattern ===
102 102  
103 103  **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
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108 108  
109 109  
110 110  
119 +(((
111 111  **(2)** **The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.**
121 +)))
112 112  
113 113  
114 114  [[image:1654852175653-550.png]](% style="display:none" %) ** **
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127 127  * Sewer
128 128  * Bottom water level monitoring
129 129  
140 +
141 +
130 130  == 1.6  Pin mapping and power on ==
131 131  
132 132  
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134 134  
135 135  
136 136  
137 -= 2.  Configure LDDS75 to connect to LoRaWAN network =
149 += 2.  Configure LDDS45 to connect to LoRaWAN network =
138 138  
139 139  == 2.1  How it works ==
140 140  
141 141  (((
142 -The LDDS75 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
154 +The LDDS45 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS45. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
143 143  )))
144 144  
145 145  (((
146 -In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS75.
158 +In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS45.
147 147  )))
148 148  
149 149  
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173 173  [[image:image-20220607170145-1.jpeg]]
174 174  
175 175  
188 +(((
176 176  For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
190 +)))
177 177  
192 +(((
178 178  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
194 +)))
179 179  
196 +(((
180 180  **Add APP EUI in the application**
198 +)))
181 181  
182 182  [[image:image-20220610161353-4.png]]
183 183  
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220 220  == 2.3  ​Uplink Payload ==
221 221  
222 222  (((
241 +(((
223 223  LDDS75 will uplink payload via LoRaWAN with below payload format: 
243 +)))
224 224  
245 +(((
225 225  Uplink payload includes in total 4 bytes.
226 226  Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
227 227  )))
249 +)))
228 228  
229 229  (((
230 230  
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259 259  
260 260  === 2.3.2  Distance ===
261 261  
284 +(((
262 262  Get the distance. Flat object range 280mm - 7500mm.
286 +)))
263 263  
288 +(((
264 264  For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
290 +)))
265 265  
266 266  
267 267  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
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268 268  * 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.
269 269  
270 270  
297 +
271 271  === 2.3.3  Interrupt Pin ===
272 272  
273 273  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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296 296  
297 297  === 2.3.5  Sensor Flag ===
298 298  
326 +(((
299 299  0x01: Detect Ultrasonic Sensor
328 +)))
300 300  
330 +(((
301 301  0x00: No Ultrasonic Sensor
332 +)))
302 302  
303 303  
304 304  
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311 311  
312 312  The payload decoder function for TTN V3 is here:
313 313  
345 +(((
314 314  LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
347 +)))
315 315  
316 316  
317 317  
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838 838  * Blink once when device transmit a packet.
839 839  
840 840  
874 +
841 841  == 2.8  ​Firmware Change Log ==
842 842  
843 843  
878 +(((
844 844  **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/]]
880 +)))
845 845  
882 +(((
883 +
884 +)))
846 846  
886 +(((
847 847  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
888 +)))
848 848  
849 849  
850 850  
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988 988  [[image:image-20220610172924-5.png]]
989 989  
990 990  
1032 +(((
991 991  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:
1034 +)))
992 992  
993 993  
994 994   [[image:image-20220610172924-6.png||height="601" width="860"]]
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1012 1012  (((
1013 1013  Format: Command Code (0x01) followed by 3 bytes time value.
1014 1014  
1058 +(((
1015 1015  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1060 +)))
1016 1016  
1017 1017  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1018 1018  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1019 1019  )))
1065 +)))
1020 1020  
1021 1021  
1022 -
1023 -)))
1024 1024  
1069 +
1070 +
1025 1025  == 3.3  Set Interrupt Mode ==
1026 1026  
1027 1027  Feature, Set Interrupt mode for GPIO_EXIT.
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1035 1035  
1036 1036  Format: Command Code (0x06) followed by 3 bytes.
1037 1037  
1084 +(((
1038 1038  This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1086 +)))
1039 1039  
1040 1040  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1041 1041  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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