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Last modified by Xiaoling on 2025/04/27 16:45
From version 152.2
edited by Xiaoling
on 2022/06/14 17:17
Change comment: There is no comment for this version
To version 147.10
edited by Xiaoling
on 2022/06/10 17:47
Change comment: There is no comment for this version

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1 1  (% style="text-align:center" %)
2 2  [[image:1654846127817-788.png]]
3 3  
4 +**Contents:**
4 4  
5 5  
6 6  
7 7  
8 -**Table of Contents:**
9 9  
10 -{{toc/}}
11 11  
12 12  
13 13  
14 -
15 -
16 -
17 -
18 -
19 19  = 1.  Introduction =
20 20  
21 21  == 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
... ... @@ -24,51 +24,24 @@
24 24  
25 25  
26 26  (((
27 -(((
28 28  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.
29 -)))
30 30  
31 -(((
32 -
33 -)))
34 34  
35 -(((
36 36  It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
37 -)))
38 38  
39 -(((
40 -
41 -)))
42 42  
43 -(((
44 44  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.
45 -)))
46 46  
47 -(((
48 -
49 -)))
50 50  
51 -(((
52 52  LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
53 -)))
54 54  
55 -(((
56 -
57 -)))
58 58  
59 -(((
60 60  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.
61 -)))
62 62  
63 -(((
64 -
65 -)))
66 66  
67 -(((
68 -(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
36 +(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors
69 69  )))
70 70  )))
71 -)))
72 72  
73 73  
74 74  [[image:1654847051249-359.png]]
... ... @@ -90,8 +90,6 @@
90 90  * IP66 Waterproof Enclosure
91 91  * 4000mAh or 8500mAh Battery for long term use
92 92  
93 -
94 -
95 95  == 1.3  Specification ==
96 96  
97 97  === 1.3.1  Rated environmental conditions ===
... ... @@ -98,12 +98,12 @@
98 98  
99 99  [[image:image-20220610154839-1.png]]
100 100  
101 -(((
102 -**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)**
103 -)))
66 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
104 104  
68 +**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)**
105 105  
106 106  
71 +
107 107  === 1.3.2  Effective measurement range Reference beam pattern ===
108 108  
109 109  **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
... ... @@ -113,10 +113,7 @@
113 113  [[image:1654852253176-749.png]]
114 114  
115 115  
116 -
117 -(((
118 118  **(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.**
119 -)))
120 120  
121 121  
122 122  [[image:1654852175653-550.png]](% style="display:none" %) ** **
... ... @@ -135,8 +135,6 @@
135 135  * Sewer
136 136  * Bottom water level monitoring
137 137  
138 -
139 -
140 140  == 1.6  Pin mapping and power on ==
141 141  
142 142  
... ... @@ -183,17 +183,11 @@
183 183  [[image:image-20220607170145-1.jpeg]]
184 184  
185 185  
186 -(((
187 187  For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
188 -)))
189 189  
190 -(((
191 191  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
192 -)))
193 193  
194 -(((
195 195  **Add APP EUI in the application**
196 -)))
197 197  
198 198  [[image:image-20220610161353-4.png]]
199 199  
... ... @@ -236,15 +236,11 @@
236 236  == 2.3  ​Uplink Payload ==
237 237  
238 238  (((
239 -(((
240 240  LDDS75 will uplink payload via LoRaWAN with below payload format: 
241 -)))
242 242  
243 -(((
244 244  Uplink payload includes in total 4 bytes.
245 245  Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
246 246  )))
247 -)))
248 248  
249 249  (((
250 250  
... ... @@ -255,12 +255,12 @@
255 255  **Size (bytes)**
256 256  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
257 257  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
258 -[[Distance>>||anchor="H2.3.2A0Distance"]]
208 +[[Distance>>||anchor="H2.3.3A0Distance"]]
259 259  
260 260  (unit: mm)
261 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
262 -[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
263 -)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
211 +)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|(((
212 +[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]]
213 +)))|[[Sensor Flag>>path:#Sensor_Flag]]
264 264  
265 265  [[image:1654850511545-399.png]]
266 266  
... ... @@ -279,23 +279,17 @@
279 279  
280 280  === 2.3.2  Distance ===
281 281  
282 -(((
283 283  Get the distance. Flat object range 280mm - 7500mm.
284 -)))
285 285  
286 -(((
287 287  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.**
288 -)))
289 289  
290 290  
291 291  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
292 292  * 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.
293 293  
294 -
295 -
296 296  === 2.3.3  Interrupt Pin ===
297 297  
298 -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.
242 +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.
299 299  
300 300  **Example:**
301 301  
... ... @@ -321,18 +321,14 @@
321 321  
322 322  === 2.3.5  Sensor Flag ===
323 323  
324 -(((
325 325  0x01: Detect Ultrasonic Sensor
326 -)))
327 327  
328 -(((
329 329  0x00: No Ultrasonic Sensor
330 -)))
331 331  
332 332  
273 +===
274 +(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
333 333  
334 -=== 2.3.6  Decode payload in The Things Network ===
335 -
336 336  While using TTN network, you can add the payload format to decode the payload.
337 337  
338 338  
... ... @@ -340,9 +340,7 @@
340 340  
341 341  The payload decoder function for TTN V3 is here:
342 342  
343 -(((
344 344  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/]]
345 -)))
346 346  
347 347  
348 348  
... ... @@ -868,22 +868,13 @@
868 868  * Solid ON for 5 seconds once device successful Join the network.
869 869  * Blink once when device transmit a packet.
870 870  
871 -
872 -
873 873  == 2.8  ​Firmware Change Log ==
874 874  
875 875  
876 -(((
877 877  **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/]]
878 -)))
879 879  
880 -(((
881 -
882 -)))
883 883  
884 -(((
885 885  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
886 -)))
887 887  
888 888  
889 889  
... ... @@ -892,11 +892,9 @@
892 892  
893 893  [[image:image-20220610172003-1.png]]
894 894  
895 -
896 896  [[image:image-20220610172003-2.png]]
897 897  
898 898  
899 -
900 900  == 2.10  Battery Analysis ==
901 901  
902 902  === 2.10.1  Battery Type ===
... ... @@ -907,7 +907,7 @@
907 907  The battery related documents as below:
908 908  
909 909  * (((
910 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
837 +[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
911 911  )))
912 912  * (((
913 913  [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
... ... @@ -923,7 +923,7 @@
923 923  === 2.10.2  Replace the battery ===
924 924  
925 925  (((
926 -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.
853 +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.
927 927  )))
928 928  
929 929  (((
... ... @@ -931,12 +931,12 @@
931 931  )))
932 932  
933 933  (((
934 -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)
861 +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)
935 935  )))
936 936  
937 937  
938 938  
939 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
866 += 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
940 940  
941 941  (((
942 942  (((
... ... @@ -946,7 +946,7 @@
946 946  
947 947  * (((
948 948  (((
949 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
876 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
950 950  )))
951 951  )))
952 952  * (((
... ... @@ -1027,9 +1027,7 @@
1027 1027  [[image:image-20220610172924-5.png]]
1028 1028  
1029 1029  
1030 -(((
1031 1031  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:
1032 -)))
1033 1033  
1034 1034  
1035 1035   [[image:image-20220610172924-6.png||height="601" width="860"]]
... ... @@ -1053,19 +1053,16 @@
1053 1053  (((
1054 1054  Format: Command Code (0x01) followed by 3 bytes time value.
1055 1055  
1056 -(((
1057 1057  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1058 -)))
1059 1059  
1060 1060  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1061 1061  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1062 1062  )))
1063 -)))
1064 1064  
1065 1065  
988 +
989 +)))
1066 1066  
1067 -
1068 -
1069 1069  == 3.3  Set Interrupt Mode ==
1070 1070  
1071 1071  Feature, Set Interrupt mode for GPIO_EXIT.
... ... @@ -1072,7 +1072,7 @@
1072 1072  
1073 1073  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1074 1074  
1075 -[[image:image-20220610174917-9.png]]
997 +[[image:image-20220610105907-1.png]]
1076 1076  
1077 1077  
1078 1078  (% style="color:#037691" %)**Downlink Command: 0x06**
... ... @@ -1079,9 +1079,7 @@
1079 1079  
1080 1080  Format: Command Code (0x06) followed by 3 bytes.
1081 1081  
1082 -(((
1083 1083  This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1084 -)))
1085 1085  
1086 1086  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1087 1087  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
... ... @@ -1088,67 +1088,106 @@
1088 1088  
1089 1089  
1090 1090  
1091 -= 4.  FAQ =
1092 1092  
1093 -== 4.1  What is the frequency plan for LDDS75? ==
1012 += 6.  Use AT Command =
1094 1094  
1095 -LDDS75 use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
1014 +== 6.1  Access AT Commands ==
1096 1096  
1016 +LLDS12 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LLDS12 for using AT command, as below.
1097 1097  
1018 +[[image:1654593668970-604.png]]
1098 1098  
1099 -== 4.2  How to change the LoRa Frequency Bands/Region ==
1020 +**Connection:**
1100 1100  
1101 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1102 -When downloading the images, choose the required image file for download. ​
1022 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1103 1103  
1024 +(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1104 1104  
1026 +(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1105 1105  
1106 -== 4.3  Can I use LDDS75 in condensation environment? ==
1107 1107  
1108 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1029 +(((
1030 +(((
1031 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1032 +)))
1109 1109  
1034 +(((
1035 +LLDS12 will output system info once power on as below:
1036 +)))
1037 +)))
1110 1110  
1111 1111  
1112 -= 5.  Trouble Shooting =
1040 + [[image:1654593712276-618.png]]
1113 1113  
1114 -== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1042 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1115 1115  
1116 -It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1117 1117  
1045 += 4.  FAQ =
1118 1118  
1119 -== 5.2  AT Command input doesn't work ==
1047 +== 4.1  How to change the LoRa Frequency Bands/Region ==
1120 1120  
1049 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1050 +When downloading the images, choose the required image file for download. ​
1051 +
1052 +
1053 += 5.  Trouble Shooting =
1054 +
1055 +== 5.1  AT Commands input doesn’t work ==
1056 +
1057 +
1058 +(((
1121 1121  In the case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
1060 +)))
1122 1122  
1062 +
1063 +== 5.2  Significant error between the output distant value of LiDAR and actual distance ==
1064 +
1065 +
1123 1123  (((
1067 +(% style="color:blue" %)**Cause ①**(%%)**：**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance (such as glass and water, etc.)
1068 +)))
1069 +
1070 +(((
1071 +Troubleshooting: Please avoid use of this product under such circumstance in practice.
1072 +)))
1073 +
1074 +(((
1124 1124  
1125 1125  )))
1126 1126  
1078 +(((
1079 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1080 +)))
1127 1127  
1082 +(((
1083 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1084 +)))
1085 +
1086 +
1087 +
1128 1128  = 6.  Order Info =
1129 1129  
1130 1130  
1131 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1091 +Part Number: (% style="color:blue" %)**LDDS75-XX-YY**
1132 1132  
1133 1133  
1134 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1094 +(% style="color:blue" %)**XX**(%%): The default frequency band
1135 1135  
1136 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1137 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1138 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1139 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1140 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1141 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1142 -* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1143 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1096 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1097 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1098 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1099 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1100 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1101 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1102 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1103 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1144 1144  
1145 1145  (% style="color:blue" %)**YY**(%%): Battery Option
1146 1146  
1147 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1148 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1107 +* (% style="color:red" %)**4**(%%): 4000mAh battery
1108 +* (% style="color:red" %)**8**(%%): 8500mAh battery
1149 1149  
1150 1150  
1151 -
1152 1152  = 7. ​ Packing Info =
1153 1153  
1154 1154  
... ... @@ -1164,7 +1164,6 @@
1164 1164  * Weight / pcs : g
1165 1165  
1166 1166  
1167 -
1168 1168  = 8.  ​Support =
1169 1169  
1170 1170  * 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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