Skip to Content
Last modified by Xiaoling on 2025/04/27 16:45
From version 154.2
edited by Xiaoling
on 2022/06/15 09:00
Change comment: There is no comment for this version
To version 147.9
edited by Xiaoling
on 2022/06/10 17:46
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual
1 +LDDS75 - LoRaWAN Distance Detection Sensor User Manual
Content
... ... @@ -1,51 +1,41 @@
1 1  (% style="text-align:center" %)
2 -[[image:1655254599445-662.png]]
2 +[[image:1654846127817-788.png]]
3 3  
4 +**Contents:**
4 4  
5 5  
6 6  
7 -**Table of Contents:**
8 8  
9 9  
10 10  
11 11  
12 12  
13 -
14 -
15 -
16 16  = 1.  Introduction =
17 17  
18 -== 1.1 ​ What is LoRaWAN Ultrasonic liquid level Sensor ==
15 +== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
19 19  
20 20  (((
21 21  
22 22  
23 23  (((
24 -(((
25 25  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.
26 -)))
27 27  
28 -(((
23 +
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 -)))
31 31  
32 -(((
26 +
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 -)))
35 35  
36 -(((
29 +
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 -)))
39 39  
40 -(((
32 +
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 -)))
43 43  
44 -(((
45 -(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
35 +
36 +(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors
46 46  )))
47 47  )))
48 -)))
49 49  
50 50  
51 51  [[image:1654847051249-359.png]]
... ... @@ -67,7 +67,6 @@
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 ===
... ... @@ -74,11 +74,9 @@
74 74  
75 75  [[image:image-20220610154839-1.png]]
76 76  
77 -(((
78 -**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
66 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
79 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)**
81 -)))
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)**
82 82  
83 83  
84 84  
... ... @@ -91,10 +91,7 @@
91 91  [[image:1654852253176-749.png]]
92 92  
93 93  
94 -
95 -(((
96 96  **(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.**
97 -)))
98 98  
99 99  
100 100  [[image:1654852175653-550.png]](% style="display:none" %) ** **
... ... @@ -113,7 +113,6 @@
113 113  * Sewer
114 114  * Bottom water level monitoring
115 115  
116 -
117 117  == 1.6  Pin mapping and power on ==
118 118  
119 119  
... ... @@ -150,8 +150,6 @@
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  
... ... @@ -162,19 +162,11 @@
162 162  [[image:image-20220607170145-1.jpeg]]
163 163  
164 164  
165 -(((
166 166  For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
167 -)))
168 168  
169 -(((
170 170  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
171 -)))
172 172  
173 -(((
174 -
175 -
176 176  **Add APP EUI in the application**
177 -)))
178 178  
179 179  [[image:image-20220610161353-4.png]]
180 180  
... ... @@ -217,15 +217,11 @@
217 217  == 2.3  ​Uplink Payload ==
218 218  
219 219  (((
220 -(((
221 221  LDDS75 will uplink payload via LoRaWAN with below payload format: 
222 -)))
223 223  
224 -(((
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  )))
228 -)))
229 229  
230 230  (((
231 231  
... ... @@ -236,12 +236,12 @@
236 236  **Size (bytes)**
237 237  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
238 238  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
239 -[[Distance>>||anchor="H2.3.2A0Distance"]]
208 +[[Distance>>||anchor="H2.3.3A0Distance"]]
240 240  
241 241  (unit: mm)
242 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
243 -[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
244 -)))|[[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]]
245 245  
246 246  [[image:1654850511545-399.png]]
247 247  
... ... @@ -260,22 +260,17 @@
260 260  
261 261  === 2.3.2  Distance ===
262 262  
263 -(((
264 264  Get the distance. Flat object range 280mm - 7500mm.
265 -)))
266 266  
267 -(((
268 268  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.**
269 -)))
270 270  
271 271  
272 272  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
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 -
276 276  === 2.3.3  Interrupt Pin ===
277 277  
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.
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.
279 279  
280 280  **Example:**
281 281  
... ... @@ -301,18 +301,14 @@
301 301  
302 302  === 2.3.5  Sensor Flag ===
303 303  
304 -(((
305 305  0x01: Detect Ultrasonic Sensor
306 -)))
307 307  
308 -(((
309 309  0x00: No Ultrasonic Sensor
310 -)))
311 311  
312 312  
273 +===
274 +(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
313 313  
314 -=== 2.3.6  Decode payload in The Things Network ===
315 -
316 316  While using TTN network, you can add the payload format to decode the payload.
317 317  
318 318  
... ... @@ -320,9 +320,7 @@
320 320  
321 321  The payload decoder function for TTN V3 is here:
322 322  
323 -(((
324 324  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/]]
325 -)))
326 326  
327 327  
328 328  
... ... @@ -848,21 +848,13 @@
848 848  * Solid ON for 5 seconds once device successful Join the network.
849 849  * Blink once when device transmit a packet.
850 850  
851 -
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  
... ... @@ -871,11 +871,9 @@
871 871  
872 872  [[image:image-20220610172003-1.png]]
873 873  
874 -
875 875  [[image:image-20220610172003-2.png]]
876 876  
877 877  
878 -
879 879  == 2.10  Battery Analysis ==
880 880  
881 881  === 2.10.1  Battery Type ===
... ... @@ -886,7 +886,7 @@
886 886  The battery related documents as below:
887 887  
888 888  * (((
889 -[[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]],
890 890  )))
891 891  * (((
892 892  [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
... ... @@ -902,7 +902,7 @@
902 902  === 2.10.2  Replace the battery ===
903 903  
904 904  (((
905 -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.
906 906  )))
907 907  
908 908  (((
... ... @@ -910,12 +910,12 @@
910 910  )))
911 911  
912 912  (((
913 -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)
914 914  )))
915 915  
916 916  
917 917  
918 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
866 += 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
919 919  
920 920  (((
921 921  (((
... ... @@ -925,7 +925,7 @@
925 925  
926 926  * (((
927 927  (((
928 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
876 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
929 929  )))
930 930  )))
931 931  * (((
... ... @@ -1006,9 +1006,7 @@
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"]]
... ... @@ -1032,19 +1032,16 @@
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  
988 +
989 +)))
1045 1045  
1046 -
1047 -
1048 1048  == 3.3  Set Interrupt Mode ==
1049 1049  
1050 1050  Feature, Set Interrupt mode for GPIO_EXIT.
... ... @@ -1051,7 +1051,7 @@
1051 1051  
1052 1052  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1053 1053  
1054 -[[image:image-20220610174917-9.png]]
997 +[[image:image-20220610105907-1.png]]
1055 1055  
1056 1056  
1057 1057  (% style="color:#037691" %)**Downlink Command: 0x06**
... ... @@ -1058,74 +1058,115 @@
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 1068  
1069 -= 4.  FAQ =
1070 1070  
1071 -== 4.1  What is the frequency plan for LDDS75? ==
1072 1072  
1073 -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"]]
1074 1074  
1013 += 6.  Use AT Command =
1075 1075  
1015 +== 6.1  Access AT Commands ==
1076 1076  
1077 -== 4.2  How to change the LoRa Frequency Bands/Region ==
1017 +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.
1078 1078  
1079 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1080 -When downloading the images, choose the required image file for download. ​
1019 +[[image:1654593668970-604.png]]
1081 1081  
1021 +**Connection:**
1082 1082  
1023 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1083 1083  
1084 -== 4.3  Can I use LDDS75 in condensation environment? ==
1025 +(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1085 1085  
1086 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1027 +(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1087 1087  
1088 1088  
1030 +(((
1031 +(((
1032 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1033 +)))
1089 1089  
1090 -= 5.  Trouble Shooting =
1035 +(((
1036 +LLDS12 will output system info once power on as below:
1037 +)))
1038 +)))
1091 1091  
1092 -== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1093 1093  
1094 -It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1041 + [[image:1654593712276-618.png]]
1095 1095  
1043 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1096 1096  
1097 -== 5.2  AT Command input doesn't work ==
1098 1098  
1046 += 7.  FAQ =
1047 +
1048 +== 7.1  How to change the LoRa Frequency Bands/Region ==
1049 +
1050 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1051 +When downloading the images, choose the required image file for download. ​
1052 +
1053 +
1054 += 8.  Trouble Shooting =
1055 +
1056 +== 8.1  AT Commands input doesn’t work ==
1057 +
1058 +
1059 +(((
1099 1099  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.
1061 +)))
1100 1100  
1063 +
1064 +== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1065 +
1066 +
1101 1101  (((
1068 +(% 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.)
1069 +)))
1070 +
1071 +(((
1072 +Troubleshooting: Please avoid use of this product under such circumstance in practice.
1073 +)))
1074 +
1075 +(((
1102 1102  
1103 1103  )))
1104 1104  
1079 +(((
1080 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1081 +)))
1105 1105  
1083 +(((
1084 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1085 +)))
1086 +
1087 +
1088 +
1106 1106  = 6.  Order Info =
1107 1107  
1108 1108  
1109 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1092 +Part Number: (% style="color:blue" %)**LDDS75-XX-YY**
1110 1110  
1111 1111  
1112 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1095 +(% style="color:blue" %)**XX**(%%): The default frequency band
1113 1113  
1114 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1115 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1116 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1117 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1118 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1119 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1120 -* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1121 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1097 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1098 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1099 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1100 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1101 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1102 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1103 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1104 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1122 1122  
1123 1123  (% style="color:blue" %)**YY**(%%): Battery Option
1124 1124  
1125 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1126 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1108 +* **(% style="color:red" %)4**(%%): 4000mAh battery
1109 +* **(% style="color:red" %)8**(%%): 8500mAh battery
1127 1127  
1128 1128  
1112 +
1129 1129  = 7. ​ Packing Info =
1130 1130  
1131 1131  
... ... @@ -1141,6 +1141,7 @@
1141 1141  * Weight / pcs : g
1142 1142  
1143 1143  
1128 +
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.
1655254599445-662.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -117.0 KB
Content
image-20220610174836-8.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -34.3 KB
Content
image-20220610174917-9.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -34.3 KB
Content