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Last modified by Xiaoling on 2025/04/27 13:54
From version 150.11
edited by Xiaoling
on 2022/06/11 08:40
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edited by Xiaoling
on 2022/06/11 10:19
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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  
... ... @@ -20,27 +20,56 @@
20 20  
21 21  
22 22  (((
23 -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.
23 +(((
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 +)))
24 24  
27 +(((
28 +
29 +)))
25 25  
31 +(((
26 26  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 +)))
27 27  
35 +(((
36 +
37 +)))
28 28  
29 -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.
39 +(((
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 +)))
30 30  
43 +(((
44 +
45 +)))
31 31  
32 -LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
47 +(((
48 +LDDS45 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
49 +)))
33 33  
51 +(((
52 +
53 +)))
34 34  
35 -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.
55 +(((
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 +)))
36 36  
59 +(((
60 +
61 +)))
37 37  
63 +(((
38 38  (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
65 +
66 +
39 39  )))
40 40  )))
69 +)))
41 41  
71 +[[image:1654912858581-740.png]]
42 42  
43 -[[image:1654847051249-359.png]]
44 44  
45 45  
46 46  
... ... @@ -47,10 +47,11 @@
47 47  == ​1.2  Features ==
48 48  
49 49  * LoRaWAN 1.0.3 Class A
50 -* Ultra low power consumption
79 +* Ultra-low power consumption
51 51  * Distance Detection by Ultrasonic technology
52 -* Flat object range 280mm - 7500mm
81 +* Flat object range 30mm - 4500mm
53 53  * Accuracy: ±(1cm+S*0.3%) (S: Distance)
83 +* Measure Angle: 60°
54 54  * Cable Length : 25cm
55 55  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
56 56  * AT Commands to change parameters
... ... @@ -57,7 +57,7 @@
57 57  * Uplink on periodically
58 58  * Downlink to change configure
59 59  * IP66 Waterproof Enclosure
60 -* 4000mAh or 8500mAh Battery for long term use
90 +* 8500mAh Battery for long term use
61 61  
62 62  
63 63  
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67 67  
68 68  [[image:image-20220610154839-1.png]]
69 69  
70 -**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
71 71  
72 -**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);  **
73 73  
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 +)))
74 74  
75 75  
108 +
76 76  === 1.3.2  Effective measurement range Reference beam pattern ===
77 77  
78 78  **(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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83 83  
84 84  
85 85  
119 +(((
86 86  **(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 +)))
87 87  
88 88  
89 89  [[image:1654852175653-550.png]](% style="display:none" %) ** **
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104 104  
105 105  
106 106  
107 -
108 108  == 1.6  Pin mapping and power on ==
109 109  
110 110  
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112 112  
113 113  
114 114  
115 -= 2.  Configure LDDS75 to connect to LoRaWAN network =
149 += 2.  Configure LDDS45 to connect to LoRaWAN network =
116 116  
117 117  == 2.1  How it works ==
118 118  
119 119  (((
120 -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
121 121  )))
122 122  
123 123  (((
124 -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.
125 125  )))
126 126  
127 127  
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130 130  
131 131  (((
132 132  Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example.
167 +
168 +
133 133  )))
134 134  
171 +[[image:1654913911773-521.png]]
172 +
173 +
135 135  (((
136 -[[image:1654848616367-242.png]]
175 +
137 137  )))
138 138  
139 139  (((
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141 141  )))
142 142  
143 143  (((
144 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
183 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS45.
145 145  )))
146 146  
147 147  (((
148 -Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
187 +Each LDDS45 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
149 149  )))
150 150  
151 151  [[image:image-20220607170145-1.jpeg]]
152 152  
153 153  
193 +(((
154 154  For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
195 +)))
155 155  
197 +(((
156 156  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
199 +)))
157 157  
201 +(((
158 158  **Add APP EUI in the application**
203 +)))
159 159  
160 160  [[image:image-20220610161353-4.png]]
161 161  
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198 198  == 2.3  ​Uplink Payload ==
199 199  
200 200  (((
246 +(((
201 201  LDDS75 will uplink payload via LoRaWAN with below payload format: 
248 +)))
202 202  
250 +(((
203 203  Uplink payload includes in total 4 bytes.
204 204  Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
205 205  )))
254 +)))
206 206  
207 207  (((
208 208  
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213 213  **Size (bytes)**
214 214  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
215 215  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
216 -[[Distance>>||anchor="H2.3.3A0Distance"]]
265 +[[Distance>>||anchor="H2.3.2A0Distance"]]
217 217  
218 218  (unit: mm)
219 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|(((
220 -[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]]
221 -)))|[[Sensor Flag>>path:#Sensor_Flag]]
268 +)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
269 +[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
270 +)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
222 222  
223 223  [[image:1654850511545-399.png]]
224 224  
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237 237  
238 238  === 2.3.2  Distance ===
239 239  
289 +(((
240 240  Get the distance. Flat object range 280mm - 7500mm.
291 +)))
241 241  
293 +(((
242 242  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.**
295 +)))
243 243  
244 244  
245 245  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
246 246  * 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.
247 247  
301 +
302 +
248 248  === 2.3.3  Interrupt Pin ===
249 249  
250 -This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.2A0SetInterruptMode"]] for the hardware and software set up.
305 +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.
251 251  
252 252  **Example:**
253 253  
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273 273  
274 274  === 2.3.5  Sensor Flag ===
275 275  
331 +(((
276 276  0x01: Detect Ultrasonic Sensor
333 +)))
277 277  
335 +(((
278 278  0x00: No Ultrasonic Sensor
337 +)))
279 279  
280 280  
281 281  
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288 288  
289 289  The payload decoder function for TTN V3 is here:
290 290  
350 +(((
291 291  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/]]
352 +)))
292 292  
293 293  
294 294  
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814 814  * Solid ON for 5 seconds once device successful Join the network.
815 815  * Blink once when device transmit a packet.
816 816  
878 +
879 +
817 817  == 2.8  ​Firmware Change Log ==
818 818  
819 819  
883 +(((
820 820  **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/]]
885 +)))
821 821  
887 +(((
888 +
889 +)))
822 822  
891 +(((
823 823  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
893 +)))
824 824  
825 825  
826 826  
... ... @@ -829,9 +829,11 @@
829 829  
830 830  [[image:image-20220610172003-1.png]]
831 831  
902 +
832 832  [[image:image-20220610172003-2.png]]
833 833  
834 834  
906 +
835 835  == 2.10  Battery Analysis ==
836 836  
837 837  === 2.10.1  Battery Type ===
... ... @@ -842,7 +842,7 @@
842 842  The battery related documents as below:
843 843  
844 844  * (((
845 -[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
917 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
846 846  )))
847 847  * (((
848 848  [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
... ... @@ -858,7 +858,7 @@
858 858  === 2.10.2  Replace the battery ===
859 859  
860 860  (((
861 -You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
933 +You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won't be voltage drop between battery and main board.
862 862  )))
863 863  
864 864  (((
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866 866  )))
867 867  
868 868  (((
869 -The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can’t find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
941 +The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
870 870  )))
871 871  
872 872  
873 873  
874 -= 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
946 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
875 875  
876 876  (((
877 877  (((
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881 881  
882 882  * (((
883 883  (((
884 -AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
956 +AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
885 885  )))
886 886  )))
887 887  * (((
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962 962  [[image:image-20220610172924-5.png]]
963 963  
964 964  
1037 +(((
965 965  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:
1039 +)))
966 966  
967 967  
968 968   [[image:image-20220610172924-6.png||height="601" width="860"]]
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986 986  (((
987 987  Format: Command Code (0x01) followed by 3 bytes time value.
988 988  
1063 +(((
989 989  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1065 +)))
990 990  
991 991  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
992 992  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
993 993  )))
1070 +)))
994 994  
995 995  
996 -
997 -)))
998 998  
1074 +
1075 +
999 999  == 3.3  Set Interrupt Mode ==
1000 1000  
1001 1001  Feature, Set Interrupt mode for GPIO_EXIT.
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1009 1009  
1010 1010  Format: Command Code (0x06) followed by 3 bytes.
1011 1011  
1089 +(((
1012 1012  This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1091 +)))
1013 1013  
1014 1014  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1015 1015  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1016 1016  
1096 +
1097 +
1017 1017  = 4.  FAQ =
1018 1018  
1019 1019  == 4.1  What is the frequency plan for LDDS75? ==
... ... @@ -1073,6 +1073,8 @@
1073 1073  * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1074 1074  * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1075 1075  
1157 +
1158 +
1076 1076  = 7. ​ Packing Info =
1077 1077  
1078 1078  
... ... @@ -1087,6 +1087,8 @@
1087 1087  * Package Size / pcs : cm
1088 1088  * Weight / pcs : g
1089 1089  
1173 +
1174 +
1090 1090  = 8.  ​Support =
1091 1091  
1092 1092  * 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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