Last modified by Xiaoling on 2025/04/27 16:45
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From version < 150.13 >
edited by Xiaoling
on 2022/06/11 08:42
To version < 151.10 >
edited by Xiaoling
on 2022/06/11 09:36
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Summary

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67 67  
68 68  
69 69  (((
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70 70  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.
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73 73  It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
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75 75  
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76 76  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.
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78 78  
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79 79  LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
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81 81  
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82 82  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.
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83 83  
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85 85  (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
86 86  )))
87 87  )))
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88 88  
89 89  
90 90  [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654847051249-359.png?rev=1.1||alt="1654847051249-359.png"]]
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106 106  * IP66 Waterproof Enclosure
107 107  * 4000mAh or 8500mAh Battery for long term use
108 108  
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138 +
109 109  == 1.3  Specification ==
110 110  
111 111  === 1.3.1  Rated environmental conditions ===
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112 112  
113 113  [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610154839-1.png?rev=1.1||alt="image-20220610154839-1.png"]]
114 114  
115 -**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
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146 +**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)**
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116 116  
117 -**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)**
118 118  
119 119  
120 -
121 121  === 1.3.2  Effective measurement range Reference beam pattern ===
122 122  
123 123  **(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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128 128  
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130 130  
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131 131  **(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.**
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133 133  
134 134  [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852175653-550.png?rev=1.1||alt="1654852175653-550.png"]](% style="display:none" %) ** **
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148 148  * Bottom water level monitoring
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150 150  
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184 +
151 151  == 1.6  Pin mapping and power on ==
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153 153  
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194 194  [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220607170145-1.jpeg?rev=1.1||alt="image-20220607170145-1.jpeg"]]
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196 196  
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197 197  For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
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198 198  
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199 199  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
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200 200  
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201 201  **Add APP EUI in the application**
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202 202  
203 203  [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610161353-4.png?rev=1.1||alt="image-20220610161353-4.png"]]
204 204  
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241 241  == 2.3  ​Uplink Payload ==
242 242  
243 243  (((
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244 244  LDDS75 will uplink payload via LoRaWAN with below payload format: 
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245 245  
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246 246  Uplink payload includes in total 4 bytes.
247 247  Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
248 248  )))
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249 249  
250 250  (((
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256 256  **Size (bytes)**
257 257  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
258 258  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>path:#H2.3.1A0BatteryInfo]]|(((
259 -[[Distance>>path:#H2.3.3A0Distance]]
303 +[[Distance>>path:#H2.3.2A0Distance]]
260 260  
261 261  (unit: mm)
262 -)))|[[Digital Interrupt (Optional)>>path:#H2.3.4A0Distancesignalstrength]]|(((
263 -[[Temperature (Optional )>>path:#H2.3.5A0InterruptPin]]
264 -)))|(%%)(% class="wikiinternallink" %)[[Sensor Flag>>path:#Sensor_Flag]]
306 +)))|[[Digital Interrupt (Optional)>>path:#H2.3.3A0InterruptPin]]|(((
307 +[[Temperature (Optional )>>path:#H2.3.4A0DS18B20Temperaturesensor]]
308 +)))|[[Sensor Flag>>path:#H2.3.5A0SensorFlag]]
265 265  
266 266  [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654850511545-399.png?rev=1.1||alt="1654850511545-399.png"]]
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280 280  
281 281  === 2.3.2  Distance ===
282 282  
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283 283  Get the distance. Flat object range 280mm - 7500mm.
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284 284  
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285 285  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.**
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286 286  
287 287  
288 288  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
289 289  * 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.
290 290  
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340 +
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291 291  === 2.3.3  Interrupt Pin ===
292 292  
293 -This data field shows if this packet is generated by interrupt or not. [[Click here>>path:#H4.2A0SetInterruptMode]] for the hardware and software set up.
344 +This data field shows if this packet is generated by interrupt or not. [[Click here>>path:#H3.3A0SetInterruptMode]] for the hardware and software set up.
294 294  
295 295  **Example:**
296 296  
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316 316  
317 317  === 2.3.5  Sensor Flag ===
318 318  
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319 319  0x01: Detect Ultrasonic Sensor
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321 321  0x00: No Ultrasonic Sensor
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331 331  
332 332  The payload decoder function for TTN V3 is here:
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334 334  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/]]
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857 857  * Solid ON for 5 seconds once device successful Join the network.
858 858  * Blink once when device transmit a packet.
859 859  
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860 860  == 2.8  ​Firmware Change Log ==
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862 862  
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863 863  **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/]]
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866 866  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>path:/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
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872 872  
873 873  [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610172003-1.png?rev=1.1||alt="image-20220610172003-1.png"]]
874 874  
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875 875  [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610172003-2.png?rev=1.1||alt="image-20220610172003-2.png"]]
876 876  
877 877  
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878 878  == 2.10  Battery Analysis ==
879 879  
880 880  === 2.10.1  Battery Type ===
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885 885  The battery related documents as below:
886 886  
887 887  * (((
888 -[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
957 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
889 889  )))
890 890  * (((
891 891  [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
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901 901  === 2.10.2  Replace the battery ===
902 902  
903 903  (((
904 -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.
973 +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.
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906 906  
907 907  (((
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909 909  )))
910 910  
911 911  (((
912 -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)
981 +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)
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924 924  
925 925  * (((
926 926  (((
927 -AT Command Connection: See [[FAQ>>path:#H7.A0FAQ]].
996 +AT Command Connection: See [[FAQ>>path:#H4.A0FAQ]].
928 928  )))
929 929  )))
930 930  * (((
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1005 1005  [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610172924-5.png?rev=1.1||alt="image-20220610172924-5.png"]]
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1008 1008  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:
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1009 1009  
1010 1010  
1011 1011   [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610172924-6.png?width=860&height=601&rev=1.1||alt="image-20220610172924-6.png" height="601" width="860"]]
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1029 1029  (((
1030 1030  Format: Command Code (0x01) followed by 3 bytes time value.
1031 1031  
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1032 1032  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
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1033 1033  
1034 1034  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1035 1035  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1036 1036  )))
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1037 1037  
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1041 1041  
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1115 +
1042 1042  == 3.3  Set Interrupt Mode ==
1043 1043  
1044 1044  Feature, Set Interrupt mode for GPIO_EXIT.
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1052 1052  
1053 1053  Format: Command Code (0x06) followed by 3 bytes.
1054 1054  
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1055 1055  This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
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1056 1056  
1057 1057  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1058 1058  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1059 1059  
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1060 1060  = 4.  FAQ =
1061 1061  
1062 1062  == 4.1  What is the frequency plan for LDDS75? ==

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