Last modified by Mengting Qiu on 2025/02/26 15:04
<
From version < 147.9 >
edited by Xiaoling
on 2022/06/10 17:46
To version < 150.37 >
edited by Xiaoling
on 2022/06/11 09:13
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3 3  
4 4  **Contents:**
5 5  
6 +{{toc/}}
6 6  
7 7  
8 8  
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10 10  
11 11  
12 12  
14 +
13 13  = 1.  Introduction =
14 14  
15 15  == 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
... ... @@ -18,24 +18,51 @@
18 18  
19 19  
20 20  (((
23 +(((
21 21  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.
25 +)))
22 22  
27 +(((
28 +
29 +)))
23 23  
31 +(((
24 24  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 +)))
25 25  
35 +(((
36 +
37 +)))
26 26  
39 +(((
27 27  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.
41 +)))
28 28  
43 +(((
44 +
45 +)))
29 29  
47 +(((
30 30  LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
49 +)))
31 31  
51 +(((
52 +
53 +)))
32 32  
55 +(((
33 33  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.
57 +)))
34 34  
59 +(((
60 +
61 +)))
35 35  
36 -(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors
63 +(((
64 +(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
37 37  )))
38 38  )))
67 +)))
39 39  
40 40  
41 41  [[image:1654847051249-359.png]]
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57 57  * IP66 Waterproof Enclosure
58 58  * 4000mAh or 8500mAh Battery for long term use
59 59  
89 +
90 +
60 60  == 1.3  Specification ==
61 61  
62 62  === 1.3.1  Rated environmental conditions ===
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63 63  
64 64  [[image:image-20220610154839-1.png]]
65 65  
66 -**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
97 +(((
98 +**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)**
99 +)))
67 67  
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)**
69 69  
70 70  
71 -
72 72  === 1.3.2  Effective measurement range Reference beam pattern ===
73 73  
74 74  **(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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78 78  [[image:1654852253176-749.png]]
79 79  
80 80  
112 +
81 81  **(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.**
82 82  
83 83  
... ... @@ -205,12 +205,12 @@
205 205  **Size (bytes)**
206 206  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
207 207  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
208 -[[Distance>>||anchor="H2.3.3A0Distance"]]
240 +[[Distance>>||anchor="H2.3.2A0Distance"]]
209 209  
210 210  (unit: mm)
211 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|(((
212 -[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]]
213 -)))|[[Sensor Flag>>path:#Sensor_Flag]]
243 +)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
244 +[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
245 +)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
214 214  
215 215  [[image:1654850511545-399.png]]
216 216  
... ... @@ -239,7 +239,7 @@
239 239  
240 240  === 2.3.3  Interrupt Pin ===
241 241  
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.
274 +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.
243 243  
244 244  **Example:**
245 245  
... ... @@ -270,9 +270,9 @@
270 270  0x00: No Ultrasonic Sensor
271 271  
272 272  
273 -===
274 -(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
275 275  
306 +=== 2.3.6  Decode payload in The Things Network ===
307 +
276 276  While using TTN network, you can add the payload format to decode the payload.
277 277  
278 278  
... ... @@ -821,9 +821,11 @@
821 821  
822 822  [[image:image-20220610172003-1.png]]
823 823  
856 +
824 824  [[image:image-20220610172003-2.png]]
825 825  
826 826  
860 +
827 827  == 2.10  Battery Analysis ==
828 828  
829 829  === 2.10.1  Battery Type ===
... ... @@ -834,7 +834,7 @@
834 834  The battery related documents as below:
835 835  
836 836  * (((
837 -[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
871 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
838 838  )))
839 839  * (((
840 840  [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
... ... @@ -850,7 +850,7 @@
850 850  === 2.10.2  Replace the battery ===
851 851  
852 852  (((
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.
887 +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.
854 854  )))
855 855  
856 856  (((
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858 858  )))
859 859  
860 860  (((
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)
895 +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)
862 862  )))
863 863  
864 864  
865 865  
866 -= 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
900 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
867 867  
868 868  (((
869 869  (((
... ... @@ -873,7 +873,7 @@
873 873  
874 874  * (((
875 875  (((
876 -AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
910 +AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
877 877  )))
878 878  )))
879 879  * (((
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994 994  
995 995  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
996 996  
997 -[[image:image-20220610105907-1.png]]
1031 +[[image:image-20220610174917-9.png]]
998 998  
999 999  
1000 1000  (% style="color:#037691" %)**Downlink Command: 0x06**
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1007 1007  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1008 1008  
1009 1009  
1044 += 4.  FAQ =
1010 1010  
1046 +== 4.1  What is the frequency plan for LDDS75? ==
1011 1011  
1048 +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"]]
1012 1012  
1013 -= 6.  Use AT Command =
1014 1014  
1015 -== 6.1  Access AT Commands ==
1016 1016  
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.
1052 +== 4.2  How to change the LoRa Frequency Bands/Region ==
1018 1018  
1019 -[[image:1654593668970-604.png]]
1054 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1055 +When downloading the images, choose the required image file for download. ​
1020 1020  
1021 -**Connection:**
1022 1022  
1023 -(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1024 1024  
1025 -(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1059 +== 4.3  Can I use LDDS75 in condensation environment? ==
1026 1026  
1027 -(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1061 +LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1028 1028  
1029 1029  
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 -)))
1034 1034  
1035 -(((
1036 -LLDS12 will output system info once power on as below:
1037 -)))
1038 -)))
1065 += 5.  Trouble Shooting =
1039 1039  
1067 +== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1040 1040  
1041 - [[image:1654593712276-618.png]]
1069 +It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1042 1042  
1043 -Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1044 1044  
1072 +== 5.2  AT Command input doesn't work ==
1045 1045  
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 -(((
1060 1060  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 -)))
1062 1062  
1063 -
1064 -== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1065 -
1066 -
1067 1067  (((
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 -(((
1076 1076  
1077 1077  )))
1078 1078  
1079 -(((
1080 -(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1081 -)))
1082 1082  
1083 -(((
1084 -Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1085 -)))
1086 -
1087 -
1088 -
1089 1089  = 6.  Order Info =
1090 1090  
1091 1091  
1092 -Part Number: (% style="color:blue" %)**LDDS75-XX-YY**
1084 +Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1093 1093  
1094 1094  
1095 -(% style="color:blue" %)**XX**(%%): The default frequency band
1087 +(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1096 1096  
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
1089 +* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1090 +* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1091 +* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1092 +* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1093 +* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1094 +* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1095 +* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1096 +* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1105 1105  
1106 1106  (% style="color:blue" %)**YY**(%%): Battery Option
1107 1107  
1108 -* **(% style="color:red" %)4**(%%): 4000mAh battery
1109 -* **(% style="color:red" %)8**(%%): 8500mAh battery
1100 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1101 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1110 1110  
1111 1111  
1112 -
1113 1113  = 7. ​ Packing Info =
1114 1114  
1115 1115  
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1125 1125  * Weight / pcs : g
1126 1126  
1127 1127  
1128 -
1129 1129  = 8.  ​Support =
1130 1130  
1131 1131  * 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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