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Last modified by Xiaoling on 2025/04/27 16:45
From version 154.3
edited by Xiaoling
on 2022/06/15 09:04
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To version 147.6
edited by Xiaoling
on 2022/06/10 17:41
Change comment: There is no comment for this version

Summary

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Title
... ... @@ -1,1 +1,1 @@
1 -LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual
1 +LDDS75 - LoRaWAN Distance Detection Sensor User Manual
Content
... ... @@ -1,85 +1,43 @@
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 -(((
26 -The Dragino LDDS20 is a (% style="color:#4472c4" %)**LoRaWAN Ultrasonic liquid level sensor**(%%) for Internet of Things solution. It uses (% style="color:#4472c4" %)**none-contact method **(%%)to measure the height of liquid in a container without opening the container, and send the value via LoRaWAN network to IoT Server
27 -)))
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.
28 28  
29 -(((
30 -
31 -)))
32 32  
33 -(((
34 -The LDDS20 sensor is installed directly below the container to detect the height of the liquid level. User doesn’t need to open a hole on the container to be tested. The (% style="color:#4472c4" %)**none-contact measurement makes the measurement safety, easier and possible for some strict situation**. 
35 -)))
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.
36 36  
37 -(((
38 -
39 -)))
40 40  
41 -(((
42 -LDDS20 uses ultrasonic sensing technology for distance measurement. LDDS20 is of high accuracy to measure various liquid such as: (% style="color:#4472c4" %)**toxic substances**(%%), (% style="color:#4472c4" %)**strong acids**(%%), (% style="color:#4472c4" %)**strong alkalis**(%%) and (% style="color:#4472c4" %)**various pure liquids**(%%) in high-temperature and high-pressure airtight containers.
43 -)))
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.
44 44  
45 -(((
46 -
47 -)))
48 48  
49 -(((
50 -The LoRa wireless technology used in LDDS20 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.
51 -)))
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*.
52 52  
53 -(((
54 -
55 -)))
56 56  
57 -(((
58 -LDDS20 is powered by (% style="color:#4472c4" %)**8500mA Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
59 -)))
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.
60 60  
61 -(((
62 -
63 -)))
64 64  
65 -(((
66 -Each LDDS20 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.
36 +(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors
67 67  )))
68 -
69 -(((
70 -
71 71  )))
72 -)))
73 73  
74 -(((
75 -(((
76 -(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
77 -)))
78 -)))
79 -)))
80 -)))
81 81  
82 -
83 83  [[image:1654847051249-359.png]]
84 84  
85 85  
... ... @@ -105,11 +105,9 @@
105 105  
106 106  [[image:image-20220610154839-1.png]]
107 107  
108 -(((
109 -**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);**
110 110  
111 -**~ 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)**
112 -)))
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)**
113 113  
114 114  
115 115  
... ... @@ -122,10 +122,7 @@
122 122  [[image:1654852253176-749.png]]
123 123  
124 124  
125 -
126 -(((
127 127  **(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.**
128 -)))
129 129  
130 130  
131 131  [[image:1654852175653-550.png]](% style="display:none" %) ** **
... ... @@ -180,8 +180,6 @@
180 180  )))
181 181  
182 182  (((
183 -
184 -
185 185  (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
186 186  )))
187 187  
... ... @@ -192,19 +192,11 @@
192 192  [[image:image-20220607170145-1.jpeg]]
193 193  
194 194  
195 -(((
196 196  For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
197 -)))
198 198  
199 -(((
200 200  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
201 -)))
202 202  
203 -(((
204 -
205 -
206 206  **Add APP EUI in the application**
207 -)))
208 208  
209 209  [[image:image-20220610161353-4.png]]
210 210  
... ... @@ -247,15 +247,11 @@
247 247  == 2.3  ​Uplink Payload ==
248 248  
249 249  (((
250 -(((
251 251  LDDS75 will uplink payload via LoRaWAN with below payload format: 
252 -)))
253 253  
254 -(((
255 255  Uplink payload includes in total 4 bytes.
256 256  Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
257 257  )))
258 -)))
259 259  
260 260  (((
261 261  
... ... @@ -266,12 +266,12 @@
266 266  **Size (bytes)**
267 267  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
268 268  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
269 -[[Distance>>||anchor="H2.3.2A0Distance"]]
208 +[[Distance>>||anchor="H2.3.3A0Distance"]]
270 270  
271 271  (unit: mm)
272 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
273 -[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
274 -)))|[[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]]
275 275  
276 276  [[image:1654850511545-399.png]]
277 277  
... ... @@ -290,13 +290,9 @@
290 290  
291 291  === 2.3.2  Distance ===
292 292  
293 -(((
294 294  Get the distance. Flat object range 280mm - 7500mm.
295 -)))
296 296  
297 -(((
298 298  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.**
299 -)))
300 300  
301 301  
302 302  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
... ... @@ -304,7 +304,7 @@
304 304  
305 305  === 2.3.3  Interrupt Pin ===
306 306  
307 -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.
308 308  
309 309  **Example:**
310 310  
... ... @@ -330,18 +330,14 @@
330 330  
331 331  === 2.3.5  Sensor Flag ===
332 332  
333 -(((
334 334  0x01: Detect Ultrasonic Sensor
335 -)))
336 336  
337 -(((
338 338  0x00: No Ultrasonic Sensor
339 -)))
340 340  
341 341  
273 +===
274 +(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
342 342  
343 -=== 2.3.6  Decode payload in The Things Network ===
344 -
345 345  While using TTN network, you can add the payload format to decode the payload.
346 346  
347 347  
... ... @@ -349,9 +349,7 @@
349 349  
350 350  The payload decoder function for TTN V3 is here:
351 351  
352 -(((
353 353  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/]]
354 -)))
355 355  
356 356  
357 357  
... ... @@ -880,17 +880,10 @@
880 880  == 2.8  ​Firmware Change Log ==
881 881  
882 882  
883 -(((
884 884  **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 -)))
886 886  
887 -(((
888 -
889 -)))
890 890  
891 -(((
892 892  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
893 -)))
894 894  
895 895  
896 896  
... ... @@ -899,11 +899,9 @@
899 899  
900 900  [[image:image-20220610172003-1.png]]
901 901  
902 -
903 903  [[image:image-20220610172003-2.png]]
904 904  
905 905  
906 -
907 907  == 2.10  Battery Analysis ==
908 908  
909 909  === 2.10.1  Battery Type ===
... ... @@ -914,7 +914,7 @@
914 914  The battery related documents as below:
915 915  
916 916  * (((
917 -[[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]],
918 918  )))
919 919  * (((
920 920  [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
... ... @@ -930,7 +930,7 @@
930 930  === 2.10.2  Replace the battery ===
931 931  
932 932  (((
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.
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.
934 934  )))
935 935  
936 936  (((
... ... @@ -938,12 +938,12 @@
938 938  )))
939 939  
940 940  (((
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)
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)
942 942  )))
943 943  
944 944  
945 945  
946 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
866 += 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
947 947  
948 948  (((
949 949  (((
... ... @@ -953,7 +953,7 @@
953 953  
954 954  * (((
955 955  (((
956 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
876 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
957 957  )))
958 958  )))
959 959  * (((
... ... @@ -1034,9 +1034,7 @@
1034 1034  [[image:image-20220610172924-5.png]]
1035 1035  
1036 1036  
1037 -(((
1038 1038  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 -)))
1040 1040  
1041 1041  
1042 1042   [[image:image-20220610172924-6.png||height="601" width="860"]]
... ... @@ -1060,26 +1060,24 @@
1060 1060  (((
1061 1061  Format: Command Code (0x01) followed by 3 bytes time value.
1062 1062  
1063 -(((
1064 1064  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1065 -)))
1066 1066  
1067 1067  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1068 1068  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1069 1069  )))
1070 -)))
1071 1071  
1072 1072  
988 +
989 +)))
1073 1073  
1074 -
1075 -
1076 1076  == 3.3  Set Interrupt Mode ==
1077 1077  
1078 1078  Feature, Set Interrupt mode for GPIO_EXIT.
1079 1079  
995 +
1080 1080  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1081 1081  
1082 -[[image:image-20220610174917-9.png]]
998 +[[image:image-20220610105907-1.png]]
1083 1083  
1084 1084  
1085 1085  (% style="color:#037691" %)**Downlink Command: 0x06**
... ... @@ -1086,78 +1086,207 @@
1086 1086  
1087 1087  Format: Command Code (0x06) followed by 3 bytes.
1088 1088  
1089 -(((
1090 1090  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 -)))
1092 1092  
1093 1093  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1094 1094  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1095 1095  
1096 -= 4.  FAQ =
1097 1097  
1098 -== 4.1  What is the frequency plan for LDDS75? ==
1011 += 5.  Battery & How to replace =
1099 1099  
1100 -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"]]
1013 +== 5.1  Battery Type ==
1101 1101  
1015 +(((
1016 +LLDS12 is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter.
1017 +)))
1102 1102  
1019 +(((
1020 +The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1021 +)))
1103 1103  
1104 -== 4.2  How to change the LoRa Frequency Bands/Region ==
1023 +[[image:1654593587246-335.png]]
1105 1105  
1106 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1107 -When downloading the images, choose the required image file for download. ​
1108 1108  
1026 +Minimum Working Voltage for the LLDS12:
1109 1109  
1028 +LLDS12:  2.45v ~~ 3.6v
1110 1110  
1111 -== 4.3  Can I use LDDS75 in condensation environment? ==
1112 1112  
1113 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1114 1114  
1032 +== 5.2  Replace Battery ==
1115 1115  
1034 +(((
1035 +Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
1036 +)))
1116 1116  
1117 -= 5.  Trouble Shooting =
1038 +(((
1039 +And make sure the positive and negative pins match.
1040 +)))
1118 1118  
1119 -== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1120 1120  
1121 -It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1122 1122  
1044 +== 5.3  Power Consumption Analyze ==
1123 1123  
1124 -== 5.2  AT Command input doesn't work ==
1046 +(((
1047 +Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
1048 +)))
1125 1125  
1050 +(((
1051 +Instruction to use as below:
1052 +)))
1053 +
1054 +
1055 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
1056 +
1057 +[[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
1058 +
1059 +
1060 +**Step 2**: Open it and choose
1061 +
1062 +* Product Model
1063 +* Uplink Interval
1064 +* Working Mode
1065 +
1066 +And the Life expectation in difference case will be shown on the right.
1067 +
1068 +[[image:1654593605679-189.png]]
1069 +
1070 +
1071 +The battery related documents as below:
1072 +
1073 +* (((
1074 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1075 +)))
1076 +* (((
1077 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
1078 +)))
1079 +* (((
1080 +[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
1081 +)))
1082 +
1083 +[[image:image-20220607172042-11.png]]
1084 +
1085 +
1086 +
1087 +=== 5.3.1  ​Battery Note ===
1088 +
1089 +(((
1090 +The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
1091 +)))
1092 +
1093 +
1094 +
1095 +=== ​5.3.2  Replace the battery ===
1096 +
1097 +(((
1098 +You can change the battery in the LLDS12.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.
1099 +)))
1100 +
1101 +(((
1102 +The default battery pack of LLDS12 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 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)
1103 +)))
1104 +
1105 +
1106 +
1107 += 6.  Use AT Command =
1108 +
1109 +== 6.1  Access AT Commands ==
1110 +
1111 +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.
1112 +
1113 +[[image:1654593668970-604.png]]
1114 +
1115 +**Connection:**
1116 +
1117 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1118 +
1119 +(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1120 +
1121 +(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1122 +
1123 +
1124 +(((
1125 +(((
1126 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1127 +)))
1128 +
1129 +(((
1130 +LLDS12 will output system info once power on as below:
1131 +)))
1132 +)))
1133 +
1134 +
1135 + [[image:1654593712276-618.png]]
1136 +
1137 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1138 +
1139 +
1140 += 7.  FAQ =
1141 +
1142 +== 7.1  How to change the LoRa Frequency Bands/Region ==
1143 +
1144 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1145 +When downloading the images, choose the required image file for download. ​
1146 +
1147 +
1148 += 8.  Trouble Shooting =
1149 +
1150 +== 8.1  AT Commands input doesn’t work ==
1151 +
1152 +
1153 +(((
1126 1126  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.
1155 +)))
1127 1127  
1157 +
1158 +== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1159 +
1160 +
1128 1128  (((
1162 +(% 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.)
1163 +)))
1164 +
1165 +(((
1166 +Troubleshooting: Please avoid use of this product under such circumstance in practice.
1167 +)))
1168 +
1169 +(((
1129 1129  
1130 1130  )))
1131 1131  
1173 +(((
1174 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1175 +)))
1132 1132  
1133 -= 6.  Order Info =
1177 +(((
1178 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1179 +)))
1134 1134  
1135 1135  
1136 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1137 1137  
1183 += 9.  Order Info =
1138 1138  
1139 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1140 1140  
1141 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1142 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1143 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1144 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1145 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1146 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1147 -* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1148 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1186 +Part Number: (% style="color:blue" %)**LLDS12-XX**
1149 1149  
1150 -(% style="color:blue" %)**YY**(%%): Battery Option
1151 1151  
1152 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1153 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1189 +(% style="color:blue" %)**XX**(%%): The default frequency band
1154 1154  
1155 -= 7. ​ Packing Info =
1191 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1192 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1193 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1194 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1195 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1196 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1197 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1198 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1156 1156  
1200 += 10. ​ Packing Info =
1157 1157  
1202 +
1158 1158  **Package Includes**:
1159 1159  
1160 -* LDDS75 LoRaWAN Distance Detection Sensor x 1
1205 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1161 1161  
1162 1162  **Dimension and weight**:
1163 1163  
... ... @@ -1166,7 +1166,7 @@
1166 1166  * Package Size / pcs : cm
1167 1167  * Weight / pcs : g
1168 1168  
1169 -= 8.  ​Support =
1214 += 11.  ​Support =
1170 1170  
1171 1171  * 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.
1172 1172  * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]].
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