Last modified by Xiaoling on 2025/04/27 16:45

From version 150.62
edited by Xiaoling
on 2022/06/11 09:25
Change comment: There is no comment for this version
To version 147.3
edited by Xiaoling
on 2022/06/10 17:36
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 ==
... ... @@ -20,51 +20,24 @@
20 20  
21 21  
22 22  (((
23 -(((
24 24  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 -)))
26 26  
27 -(((
28 -
29 -)))
30 30  
31 -(((
32 32  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 -)))
34 34  
35 -(((
36 -
37 -)))
38 38  
39 -(((
40 40  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 -)))
42 42  
43 -(((
44 -
45 -)))
46 46  
47 -(((
48 48  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 -)))
50 50  
51 -(((
52 -
53 -)))
54 54  
55 -(((
56 56  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 -)))
58 58  
59 -(((
60 -
61 -)))
62 62  
63 -(((
64 -(% 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
65 65  )))
66 66  )))
67 -)))
68 68  
69 69  
70 70  [[image:1654847051249-359.png]]
... ... @@ -86,6 +86,7 @@
86 86  * IP66 Waterproof Enclosure
87 87  * 4000mAh or 8500mAh Battery for long term use
88 88  
60 +
89 89  == 1.3  Specification ==
90 90  
91 91  === 1.3.1  Rated environmental conditions ===
... ... @@ -92,12 +92,12 @@
92 92  
93 93  [[image:image-20220610154839-1.png]]
94 94  
95 -(((
96 -**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)**
97 -)))
67 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
98 98  
69 +**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 99  
100 100  
72 +
101 101  === 1.3.2  Effective measurement range Reference beam pattern ===
102 102  
103 103  **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
... ... @@ -107,10 +107,7 @@
107 107  [[image:1654852253176-749.png]]
108 108  
109 109  
110 -
111 -(((
112 112  **(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.**
113 -)))
114 114  
115 115  
116 116  [[image:1654852175653-550.png]](% style="display:none" %) ** **
... ... @@ -129,6 +129,7 @@
129 129  * Sewer
130 130  * Bottom water level monitoring
131 131  
101 +
132 132  == 1.6  Pin mapping and power on ==
133 133  
134 134  
... ... @@ -175,17 +175,11 @@
175 175  [[image:image-20220607170145-1.jpeg]]
176 176  
177 177  
178 -(((
179 179  For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
180 -)))
181 181  
182 -(((
183 183  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
184 -)))
185 185  
186 -(((
187 187  **Add APP EUI in the application**
188 -)))
189 189  
190 190  [[image:image-20220610161353-4.png]]
191 191  
... ... @@ -228,15 +228,11 @@
228 228  == 2.3  ​Uplink Payload ==
229 229  
230 230  (((
231 -(((
232 232  LDDS75 will uplink payload via LoRaWAN with below payload format: 
233 -)))
234 234  
235 -(((
236 236  Uplink payload includes in total 4 bytes.
237 237  Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
238 238  )))
239 -)))
240 240  
241 241  (((
242 242  
... ... @@ -247,12 +247,12 @@
247 247  **Size (bytes)**
248 248  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
249 249  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
250 -[[Distance>>||anchor="H2.3.2A0Distance"]]
210 +[[Distance>>||anchor="H2.3.3A0Distance"]]
251 251  
252 252  (unit: mm)
253 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
254 -[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
255 -)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
213 +)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|(((
214 +[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]]
215 +)))|[[Sensor Flag>>path:#Sensor_Flag]]
256 256  
257 257  [[image:1654850511545-399.png]]
258 258  
... ... @@ -271,21 +271,18 @@
271 271  
272 272  === 2.3.2  Distance ===
273 273  
274 -(((
275 275  Get the distance. Flat object range 280mm - 7500mm.
276 -)))
277 277  
278 -(((
279 279  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.**
280 -)))
281 281  
282 282  
283 283  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
284 284  * 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.
285 285  
242 +
286 286  === 2.3.3  Interrupt Pin ===
287 287  
288 -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.
245 +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.
289 289  
290 290  **Example:**
291 291  
... ... @@ -311,18 +311,14 @@
311 311  
312 312  === 2.3.5  Sensor Flag ===
313 313  
314 -(((
315 315  0x01: Detect Ultrasonic Sensor
316 -)))
317 317  
318 -(((
319 319  0x00: No Ultrasonic Sensor
320 -)))
321 321  
322 322  
276 +===
277 +(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
323 323  
324 -=== 2.3.6  Decode payload in The Things Network ===
325 -
326 326  While using TTN network, you can add the payload format to decode the payload.
327 327  
328 328  
... ... @@ -330,9 +330,7 @@
330 330  
331 331  The payload decoder function for TTN V3 is here:
332 332  
333 -(((
334 334  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/]]
335 -)))
336 336  
337 337  
338 338  
... ... @@ -862,17 +862,10 @@
862 862  == 2.8  ​Firmware Change Log ==
863 863  
864 864  
865 -(((
866 866  **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/]]
867 -)))
868 868  
869 -(((
870 -
871 -)))
872 872  
873 -(((
874 874  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
875 -)))
876 876  
877 877  
878 878  
... ... @@ -881,13 +881,11 @@
881 881  
882 882  [[image:image-20220610172003-1.png]]
883 883  
884 -
885 885  [[image:image-20220610172003-2.png]]
886 886  
887 887  
831 +== 2.10  Battery Analysis ==
888 888  
889 -== 2.10  Battery Analysis ==
890 -
891 891  === 2.10.1  Battery Type ===
892 892  
893 893  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.
... ... @@ -896,7 +896,7 @@
896 896  The battery related documents as below:
897 897  
898 898  * (((
899 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
841 +[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
900 900  )))
901 901  * (((
902 902  [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
... ... @@ -912,7 +912,7 @@
912 912  === 2.10.2  Replace the battery ===
913 913  
914 914  (((
915 -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.
857 +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 wont be voltage drop between battery and main board.
916 916  )))
917 917  
918 918  (((
... ... @@ -920,12 +920,12 @@
920 920  )))
921 921  
922 922  (((
923 -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)
865 +The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user cant 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)
924 924  )))
925 925  
926 926  
927 927  
928 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
870 += 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
929 929  
930 930  (((
931 931  (((
... ... @@ -935,7 +935,7 @@
935 935  
936 936  * (((
937 937  (((
938 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
880 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
939 939  )))
940 940  )))
941 941  * (((
... ... @@ -1016,9 +1016,7 @@
1016 1016  [[image:image-20220610172924-5.png]]
1017 1017  
1018 1018  
1019 -(((
1020 1020  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:
1021 -)))
1022 1022  
1023 1023  
1024 1024   [[image:image-20220610172924-6.png||height="601" width="860"]]
... ... @@ -1034,6 +1034,8 @@
1034 1034  [[image:image-20220610173409-7.png]]
1035 1035  
1036 1036  
977 +
978 +
1037 1037  (((
1038 1038  (% style="color:#037691" %)**Downlink Command: 0x01**
1039 1039  )))
... ... @@ -1042,9 +1042,7 @@
1042 1042  (((
1043 1043  Format: Command Code (0x01) followed by 3 bytes time value.
1044 1044  
1045 -(((
1046 1046  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1047 -)))
1048 1048  
1049 1049  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1050 1050  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
... ... @@ -1054,95 +1054,283 @@
1054 1054  
1055 1055  )))
1056 1056  
1057 -== 3.3  Set Interrupt Mode ==
997 +== 3.3  Get Firmware Version Info ==
1058 1058  
1059 -Feature, Set Interrupt mode for GPIO_EXIT.
999 +Feature: use downlink to get firmware version.
1060 1060  
1061 -(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1001 +(% style="color:#037691" %)**Downlink Command: 0x26**
1062 1062  
1063 -[[image:image-20220610174917-9.png]]
1003 +[[image:image-20220607171917-10.png]]
1064 1064  
1005 +* Reply to the confirmation package: 26 01
1006 +* Reply to non-confirmed packet: 26 00
1065 1065  
1066 -(% style="color:#037691" %)**Downlink Command: 0x06**
1008 +Device will send an uplink after got this downlink command. With below payload:
1067 1067  
1068 -Format: Command Code (0x06) followed by 3 bytes.
1010 +Configures info payload:
1069 1069  
1012 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
1013 +|=(((
1014 +**Size(bytes)**
1015 +)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
1016 +|**Value**|Software Type|(((
1017 +Frequency
1018 +
1019 +Band
1020 +)))|Sub-band|(((
1021 +Firmware
1022 +
1023 +Version
1024 +)))|Sensor Type|Reserve|(((
1025 +[[Message Type>>||anchor="H2.3.7A0MessageType"]]
1026 +Always 0x02
1027 +)))
1028 +
1029 +**Software Type**: Always 0x03 for LLDS12
1030 +
1031 +
1032 +**Frequency Band**:
1033 +
1034 +*0x01: EU868
1035 +
1036 +*0x02: US915
1037 +
1038 +*0x03: IN865
1039 +
1040 +*0x04: AU915
1041 +
1042 +*0x05: KZ865
1043 +
1044 +*0x06: RU864
1045 +
1046 +*0x07: AS923
1047 +
1048 +*0x08: AS923-1
1049 +
1050 +*0x09: AS923-2
1051 +
1052 +*0xa0: AS923-3
1053 +
1054 +
1055 +**Sub-Band**: value 0x00 ~~ 0x08
1056 +
1057 +
1058 +**Firmware Version**: 0x0100, Means: v1.0.0 version
1059 +
1060 +
1061 +**Sensor Type**:
1062 +
1063 +0x01: LSE01
1064 +
1065 +0x02: LDDS75
1066 +
1067 +0x03: LDDS20
1068 +
1069 +0x04: LLMS01
1070 +
1071 +0x05: LSPH01
1072 +
1073 +0x06: LSNPK01
1074 +
1075 +0x07: LLDS12
1076 +
1077 +
1078 +
1079 += 5.  Battery & How to replace =
1080 +
1081 +== 5.1  Battery Type ==
1082 +
1070 1070  (((
1071 -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 +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.
1072 1072  )))
1073 1073  
1074 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1075 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1087 +(((
1088 +The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1089 +)))
1076 1076  
1091 +[[image:1654593587246-335.png]]
1077 1077  
1078 1078  
1079 -= 4.  FAQ =
1094 +Minimum Working Voltage for the LLDS12:
1080 1080  
1081 -== 4.1  What is the frequency plan for LDDS75? ==
1096 +LLDS12:  2.45v ~~ 3.6v
1082 1082  
1083 -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"]]
1084 1084  
1085 1085  
1100 +== 5.2  Replace Battery ==
1086 1086  
1087 -== 4.2  How to change the LoRa Frequency Bands/Region ==
1102 +(((
1103 +Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
1104 +)))
1088 1088  
1089 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1090 -When downloading the images, choose the required image file for download. ​
1106 +(((
1107 +And make sure the positive and negative pins match.
1108 +)))
1091 1091  
1092 1092  
1093 1093  
1094 -== 4.3  Can I use LDDS75 in condensation environment? ==
1112 +== 5.3  Power Consumption Analyze ==
1095 1095  
1096 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1114 +(((
1115 +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.
1116 +)))
1097 1097  
1118 +(((
1119 +Instruction to use as below:
1120 +)))
1098 1098  
1099 1099  
1100 -= 5.  Trouble Shooting =
1123 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
1101 1101  
1102 -== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1125 +[[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/]]
1103 1103  
1104 -It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1105 1105  
1128 +**Step 2**: Open it and choose
1106 1106  
1107 -== 5.2  AT Command input doesn't work ==
1130 +* Product Model
1131 +* Uplink Interval
1132 +* Working Mode
1108 1108  
1134 +And the Life expectation in difference case will be shown on the right.
1135 +
1136 +[[image:1654593605679-189.png]]
1137 +
1138 +
1139 +The battery related documents as below:
1140 +
1141 +* (((
1142 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1143 +)))
1144 +* (((
1145 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
1146 +)))
1147 +* (((
1148 +[[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]]
1149 +)))
1150 +
1151 +[[image:image-20220607172042-11.png]]
1152 +
1153 +
1154 +
1155 +=== 5.3.1  ​Battery Note ===
1156 +
1157 +(((
1158 +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.
1159 +)))
1160 +
1161 +
1162 +
1163 +=== ​5.3.2  Replace the battery ===
1164 +
1165 +(((
1166 +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.
1167 +)))
1168 +
1169 +(((
1170 +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)
1171 +)))
1172 +
1173 +
1174 +
1175 += 6.  Use AT Command =
1176 +
1177 +== 6.1  Access AT Commands ==
1178 +
1179 +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.
1180 +
1181 +[[image:1654593668970-604.png]]
1182 +
1183 +**Connection:**
1184 +
1185 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1186 +
1187 +(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1188 +
1189 +(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1190 +
1191 +
1192 +(((
1193 +(((
1194 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1195 +)))
1196 +
1197 +(((
1198 +LLDS12 will output system info once power on as below:
1199 +)))
1200 +)))
1201 +
1202 +
1203 + [[image:1654593712276-618.png]]
1204 +
1205 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1206 +
1207 +
1208 += 7.  FAQ =
1209 +
1210 +== 7.1  How to change the LoRa Frequency Bands/Region ==
1211 +
1212 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1213 +When downloading the images, choose the required image file for download. ​
1214 +
1215 +
1216 += 8.  Trouble Shooting =
1217 +
1218 +== 8.1  AT Commands input doesn’t work ==
1219 +
1220 +
1221 +(((
1109 1109  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.
1223 +)))
1110 1110  
1225 +
1226 +== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1227 +
1228 +
1111 1111  (((
1112 -
1230 +(% 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.)
1113 1113  )))
1114 1114  
1233 +(((
1234 +Troubleshooting: Please avoid use of this product under such circumstance in practice.
1235 +)))
1115 1115  
1116 -= 6.  Order Info =
1237 +(((
1238 +
1239 +)))
1117 1117  
1241 +(((
1242 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1243 +)))
1118 1118  
1119 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1245 +(((
1246 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1247 +)))
1120 1120  
1121 1121  
1122 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1123 1123  
1124 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1125 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1126 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1127 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1128 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1129 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1130 -* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1131 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1251 += 9.  Order Info =
1132 1132  
1133 -(% style="color:blue" %)**YY**(%%): Battery Option
1134 1134  
1135 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1136 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1254 +Part Number: (% style="color:blue" %)**LLDS12-XX**
1137 1137  
1138 1138  
1257 +(% style="color:blue" %)**XX**(%%): The default frequency band
1139 1139  
1140 -= 7. ​ Packing Info =
1259 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1260 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1261 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1262 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1263 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1264 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1265 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1266 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1141 1141  
1268 += 10. ​ Packing Info =
1142 1142  
1270 +
1143 1143  **Package Includes**:
1144 1144  
1145 -* LDDS75 LoRaWAN Distance Detection Sensor x 1
1273 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1146 1146  
1147 1147  **Dimension and weight**:
1148 1148  
... ... @@ -1151,9 +1151,7 @@
1151 1151  * Package Size / pcs : cm
1152 1152  * Weight / pcs : g
1153 1153  
1282 += 11.  ​Support =
1154 1154  
1155 -
1156 -= 8.  ​Support =
1157 -
1158 1158  * 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.
1159 1159  * 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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