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Last modified by Xiaoling on 2025/04/27 16:45
From version 150.29
edited by Xiaoling
on 2022/06/11 09:06
Change comment: There is no comment for this version
To version 143.4
edited by Xiaoling
on 2022/06/10 17:25
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -3,7 +3,6 @@
3 3  
4 4  **Contents:**
5 5  
6 -{{toc/}}
7 7  
8 8  
9 9  
... ... @@ -11,7 +11,6 @@
11 11  
12 12  
13 13  
14 -
15 15  = 1.  Introduction =
16 16  
17 17  == 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
... ... @@ -35,7 +35,7 @@
35 35  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.
36 36  
37 37  
38 -(% 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
39 39  )))
40 40  )))
41 41  
... ... @@ -59,6 +59,8 @@
59 59  * IP66 Waterproof Enclosure
60 60  * 4000mAh or 8500mAh Battery for long term use
61 61  
60 +
61 +
62 62  == 1.3  Specification ==
63 63  
64 64  === 1.3.1  Rated environmental conditions ===
... ... @@ -80,7 +80,6 @@
80 80  [[image:1654852253176-749.png]]
81 81  
82 82  
83 -
84 84  **(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.**
85 85  
86 86  
... ... @@ -101,6 +101,7 @@
101 101  * Bottom water level monitoring
102 102  
103 103  
103 +
104 104  == 1.6  Pin mapping and power on ==
105 105  
106 106  
... ... @@ -209,12 +209,12 @@
209 209  **Size (bytes)**
210 210  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
211 211  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
212 -[[Distance>>||anchor="H2.3.2A0Distance"]]
212 +[[Distance>>||anchor="H2.3.3A0Distance"]]
213 213  
214 214  (unit: mm)
215 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
216 -[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
217 -)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
215 +)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|(((
216 +[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]]
217 +)))|[[Sensor Flag>>path:#Sensor_Flag]]
218 218  
219 219  [[image:1654850511545-399.png]]
220 220  
... ... @@ -245,7 +245,7 @@
245 245  
246 246  === 2.3.3  Interrupt Pin ===
247 247  
248 -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.
248 +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.
249 249  
250 250  **Example:**
251 251  
... ... @@ -276,9 +276,9 @@
276 276  0x00: No Ultrasonic Sensor
277 277  
278 278  
279 +===
280 +(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
279 279  
280 -=== 2.3.6  Decode payload in The Things Network ===
281 -
282 282  While using TTN network, you can add the payload format to decode the payload.
283 283  
284 284  
... ... @@ -829,13 +829,11 @@
829 829  
830 830  [[image:image-20220610172003-1.png]]
831 831  
832 -
833 833  [[image:image-20220610172003-2.png]]
834 834  
835 835  
835 +== 2.10  Battery Analysis  ==
836 836  
837 -== 2.10  Battery Analysis ==
838 -
839 839  === 2.10.1  Battery Type ===
840 840  
841 841  The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
... ... @@ -844,7 +844,7 @@
844 844  The battery related documents as below:
845 845  
846 846  * (((
847 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
845 +[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
848 848  )))
849 849  * (((
850 850  [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
... ... @@ -859,31 +859,84 @@
859 859  
860 860  === 2.10.2  Replace the battery ===
861 861  
860 +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.
861 +
862 +
863 +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)
864 +
865 +
866 +
867 += 3.  LiDAR ToF Measurement =
868 +
869 +== 3.1 Principle of Distance Measurement ==
870 +
871 +The LiDAR probe is based on TOF, namely, Time of Flight principle. To be specific, the product emits modulation wave of near infrared ray on a periodic basis, which will be reflected after contacting object. The product obtains the time of flight by measuring round-trip phase difference and then calculates relative range between the product and the detection object, as shown below.
872 +
873 +[[image:1654831757579-263.png]]
874 +
875 +
876 +
877 +== 3.2 Distance Measurement Characteristics ==
878 +
879 +With optimization of light path and algorithm, The LiDAR probe has minimized influence from external environment on distance measurement performance. Despite that, the range of distance measurement may still be affected by the environment illumination intensity and the reflectivity of detection object. As shown in below:
880 +
881 +[[image:1654831774373-275.png]]
882 +
883 +
862 862  (((
863 -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.
885 +(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
864 864  )))
865 865  
866 866  (((
867 -
889 +(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
868 868  )))
869 869  
870 870  (((
871 -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)
893 +(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
872 872  )))
873 873  
874 874  
897 +(((
898 +Vertical Coordinates: Represents the radius of light spot for The LiDAR probe at the different distances. The diameter of light spot depends on the FOV of The LiDAR probe (the term of FOV generally refers to the smaller value between the receiving angle and the transmitting angle), which is calculated as follows:
899 +)))
875 875  
876 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
877 877  
902 +[[image:1654831797521-720.png]]
903 +
904 +
878 878  (((
906 +In the formula above, d is the diameter of light spot; D is detecting range; β is the value of the receiving angle of The LiDAR probe, 3.6°. Correspondence between the diameter of light spot and detecting range is given in Table below.
907 +)))
908 +
909 +[[image:1654831810009-716.png]]
910 +
911 +
879 879  (((
880 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
913 +If the light spot reaches two objects with different distances, as shown in Figure 3, the output distance value will be a value between the actual distance values of the two objects. For a high accuracy requirement in practice, the above situation should be noticed to avoid the measurement error.
881 881  )))
915 +
916 +
917 +
918 +== 3.3 Notice of usage: ==
919 +
920 +Possible invalid /wrong reading for LiDAR ToF tech:
921 +
922 +* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
923 +* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
924 +* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
925 +* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
926 +
927 += 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
928 +
929 +(((
930 +(((
931 +Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
882 882  )))
933 +)))
883 883  
884 884  * (((
885 885  (((
886 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
937 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
887 887  )))
888 888  )))
889 889  * (((
... ... @@ -898,7 +898,7 @@
898 898  )))
899 899  
900 900  (((
901 -There are two kinds of commands to configure LDDS75, they are:
952 +There are two kinds of commands to configure LLDS12, they are:
902 902  )))
903 903  )))
904 904  
... ... @@ -939,148 +939,351 @@
939 939  
940 940  * (((
941 941  (((
942 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
993 +(% style="color:#4f81bd" %)** Commands special design for LLDS12**
943 943  )))
944 944  )))
945 945  
946 946  (((
947 947  (((
948 -These commands only valid for LDDS75, as below:
999 +These commands only valid for LLDS12, as below:
949 949  )))
950 950  )))
951 951  
952 952  
953 953  
954 -== 3.1  Access AT Commands ==
1005 +== 4.1  Set Transmit Interval Time ==
955 955  
956 -LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
1007 +Feature: Change LoRaWAN End Node Transmit Interval.
957 957  
958 -[[image:image-20220610172924-4.png||height="483" width="988"]]
1009 +(% style="color:#037691" %)**AT Command: AT+TDC**
959 959  
1011 +[[image:image-20220607171554-8.png]]
960 960  
961 -Or if you have below board, use below connection:
962 962  
1014 +(((
1015 +(% style="color:#037691" %)**Downlink Command: 0x01**
1016 +)))
963 963  
964 -[[image:image-20220610172924-5.png]]
1018 +(((
1019 +Format: Command Code (0x01) followed by 3 bytes time value.
1020 +)))
965 965  
1022 +(((
1023 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1024 +)))
966 966  
967 -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:
1026 +* (((
1027 +Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1028 +)))
1029 +* (((
1030 +Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1031 +)))
968 968  
1033 +== 4.2  Set Interrupt Mode ==
969 969  
970 - [[image:image-20220610172924-6.png||height="601" width="860"]]
1035 +Feature, Set Interrupt mode for GPIO_EXIT.
971 971  
1037 +(% style="color:#037691" %)**AT Command: AT+INTMOD**
972 972  
1039 +[[image:image-20220610105806-2.png]]
973 973  
974 -== 3.2  Set Transmit Interval Time ==
975 975  
976 -Feature: Change LoRaWAN End Node Transmit Interval.
1042 +(((
1043 +(% style="color:#037691" %)**Downlink Command: 0x06**
1044 +)))
977 977  
978 -(% style="color:#037691" %)**AT Command: AT+TDC**
1046 +(((
1047 +Format: Command Code (0x06) followed by 3 bytes.
1048 +)))
979 979  
980 -[[image:image-20220610173409-7.png]]
1050 +(((
1051 +This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1052 +)))
981 981  
1054 +* (((
1055 +Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1056 +)))
1057 +* (((
1058 +Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1059 +)))
982 982  
1061 +== 4.3  Get Firmware Version Info ==
1062 +
1063 +Feature: use downlink to get firmware version.
1064 +
1065 +(% style="color:#037691" %)**Downlink Command: 0x26**
1066 +
1067 +[[image:image-20220607171917-10.png]]
1068 +
1069 +* Reply to the confirmation package: 26 01
1070 +* Reply to non-confirmed packet: 26 00
1071 +
1072 +Device will send an uplink after got this downlink command. With below payload:
1073 +
1074 +Configures info payload:
1075 +
1076 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
1077 +|=(((
1078 +**Size(bytes)**
1079 +)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
1080 +|**Value**|Software Type|(((
1081 +Frequency
1082 +
1083 +Band
1084 +)))|Sub-band|(((
1085 +Firmware
1086 +
1087 +Version
1088 +)))|Sensor Type|Reserve|(((
1089 +[[Message Type>>||anchor="H2.3.7A0MessageType"]]
1090 +Always 0x02
1091 +)))
1092 +
1093 +**Software Type**: Always 0x03 for LLDS12
1094 +
1095 +
1096 +**Frequency Band**:
1097 +
1098 +*0x01: EU868
1099 +
1100 +*0x02: US915
1101 +
1102 +*0x03: IN865
1103 +
1104 +*0x04: AU915
1105 +
1106 +*0x05: KZ865
1107 +
1108 +*0x06: RU864
1109 +
1110 +*0x07: AS923
1111 +
1112 +*0x08: AS923-1
1113 +
1114 +*0x09: AS923-2
1115 +
1116 +*0xa0: AS923-3
1117 +
1118 +
1119 +**Sub-Band**: value 0x00 ~~ 0x08
1120 +
1121 +
1122 +**Firmware Version**: 0x0100, Means: v1.0.0 version
1123 +
1124 +
1125 +**Sensor Type**:
1126 +
1127 +0x01: LSE01
1128 +
1129 +0x02: LDDS75
1130 +
1131 +0x03: LDDS20
1132 +
1133 +0x04: LLMS01
1134 +
1135 +0x05: LSPH01
1136 +
1137 +0x06: LSNPK01
1138 +
1139 +0x07: LLDS12
1140 +
1141 +
1142 +
1143 += 5.  Battery & How to replace =
1144 +
1145 +== 5.1  Battery Type ==
1146 +
983 983  (((
984 -(% style="color:#037691" %)**Downlink Command: 0x01**
1148 +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.
985 985  )))
986 986  
987 987  (((
1152 +The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1153 +)))
1154 +
1155 +[[image:1654593587246-335.png]]
1156 +
1157 +
1158 +Minimum Working Voltage for the LLDS12:
1159 +
1160 +LLDS12:  2.45v ~~ 3.6v
1161 +
1162 +
1163 +
1164 +== 5.2  Replace Battery ==
1165 +
988 988  (((
989 -Format: Command Code (0x01) followed by 3 bytes time value.
1167 +Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
1168 +)))
990 990  
991 -If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1170 +(((
1171 +And make sure the positive and negative pins match.
1172 +)))
992 992  
993 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
994 -* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1174 +
1175 +
1176 +== 5.3  Power Consumption Analyze ==
1177 +
1178 +(((
1179 +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.
995 995  )))
996 996  
1182 +(((
1183 +Instruction to use as below:
1184 +)))
997 997  
998 -
1186 +
1187 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
1188 +
1189 +[[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/]]
1190 +
1191 +
1192 +**Step 2**: Open it and choose
1193 +
1194 +* Product Model
1195 +* Uplink Interval
1196 +* Working Mode
1197 +
1198 +And the Life expectation in difference case will be shown on the right.
1199 +
1200 +[[image:1654593605679-189.png]]
1201 +
1202 +
1203 +The battery related documents as below:
1204 +
1205 +* (((
1206 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
999 999  )))
1208 +* (((
1209 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
1210 +)))
1211 +* (((
1212 +[[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]]
1213 +)))
1000 1000  
1001 -== 3.3  Set Interrupt Mode ==
1215 +[[image:image-20220607172042-11.png]]
1002 1002  
1003 -Feature, Set Interrupt mode for GPIO_EXIT.
1004 1004  
1005 -(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1006 1006  
1007 -[[image:image-20220610174917-9.png]]
1219 +=== 5.3.1  ​Battery Note ===
1008 1008  
1221 +(((
1222 +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.
1223 +)))
1009 1009  
1010 -(% style="color:#037691" %)**Downlink Command: 0x06**
1011 1011  
1012 -Format: Command Code (0x06) followed by 3 bytes.
1013 1013  
1014 -This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1227 +=== ​5.3.2  Replace the battery ===
1015 1015  
1016 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1017 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1229 +(((
1230 +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.
1231 +)))
1018 1018  
1019 -= 4.  FAQ =
1233 +(((
1234 +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)
1235 +)))
1020 1020  
1021 -== 4.1  What is the frequency plan for LDDS75? ==
1022 1022  
1023 -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"]]
1024 1024  
1239 += 6.  Use AT Command =
1025 1025  
1241 +== 6.1  Access AT Commands ==
1026 1026  
1027 -== 4.2  How to change the LoRa Frequency Bands/Region ==
1243 +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.
1028 1028  
1029 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1030 -When downloading the images, choose the required image file for download. ​
1245 +[[image:1654593668970-604.png]]
1031 1031  
1247 +**Connection:**
1032 1032  
1249 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1033 1033  
1034 -== 4.3  Can I use LDDS75 in condensation environment? ==
1251 +(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1035 1035  
1036 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1253 +(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1037 1037  
1038 1038  
1256 +(((
1257 +(((
1258 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1259 +)))
1039 1039  
1040 -= 5.  Trouble Shooting =
1261 +(((
1262 +LLDS12 will output system info once power on as below:
1263 +)))
1264 +)))
1041 1041  
1042 -== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1043 1043  
1044 -It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1267 + [[image:1654593712276-618.png]]
1045 1045  
1269 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1046 1046  
1047 -== 5.2  AT Command input doesn't work ==
1048 1048  
1272 += 7.  FAQ =
1273 +
1274 +== 7.1  How to change the LoRa Frequency Bands/Region ==
1275 +
1276 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1277 +When downloading the images, choose the required image file for download. ​
1278 +
1279 +
1280 += 8.  Trouble Shooting =
1281 +
1282 +== 8.1  AT Commands input doesn’t work ==
1283 +
1284 +
1285 +(((
1049 1049  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.
1287 +)))
1050 1050  
1289 +
1290 +== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1291 +
1292 +
1051 1051  (((
1294 +(% 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.)
1295 +)))
1296 +
1297 +(((
1298 +Troubleshooting: Please avoid use of this product under such circumstance in practice.
1299 +)))
1300 +
1301 +(((
1052 1052  
1053 1053  )))
1054 1054  
1305 +(((
1306 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1307 +)))
1055 1055  
1056 -= 6.  Order Info =
1309 +(((
1310 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1311 +)))
1057 1057  
1058 1058  
1059 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1060 1060  
1315 += 9.  Order Info =
1061 1061  
1062 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1063 1063  
1064 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1065 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1066 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1067 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1068 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1069 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1070 -* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1071 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1318 +Part Number: (% style="color:blue" %)**LLDS12-XX**
1072 1072  
1073 -(% style="color:blue" %)**YY**(%%): Battery Option
1074 1074  
1075 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1076 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1321 +(% style="color:blue" %)**XX**(%%): The default frequency band
1077 1077  
1078 -= 7. ​ Packing Info =
1323 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1324 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1325 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1326 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1327 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1328 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1329 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1330 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1079 1079  
1332 += 10. ​ Packing Info =
1080 1080  
1334 +
1081 1081  **Package Includes**:
1082 1082  
1083 -* LDDS75 LoRaWAN Distance Detection Sensor x 1
1337 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1084 1084  
1085 1085  **Dimension and weight**:
1086 1086  
... ... @@ -1089,7 +1089,7 @@
1089 1089  * Package Size / pcs : cm
1090 1090  * Weight / pcs : g
1091 1091  
1092 -= 8.  ​Support =
1346 += 11.  ​Support =
1093 1093  
1094 1094  * 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.
1095 1095  * 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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