Last modified by Xiaoling on 2025/04/27 13:54

From version 154.4
edited by Xiaoling
on 2022/06/11 10:05
Change comment: There is no comment for this version
To version 147.5
edited by Xiaoling
on 2022/06/10 17:41
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -LDDS45 - LoRaWAN Distance Detection Sensor User Manual
1 +LDDS75 - LoRaWAN Distance Detection Sensor User Manual
Content
... ... @@ -1,9 +1,8 @@
1 1  (% style="text-align:center" %)
2 -[[image:1654912614655-664.png||height="530" width="628"]]
2 +[[image:1654846127817-788.png]]
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 ==
... ... @@ -20,56 +20,27 @@
20 20  
21 21  
22 22  (((
23 -(((
24 -The Dragino LDDS45 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 LDDS45 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 -)))
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.
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 -The LoRa wireless technology used in LDDS45 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 -)))
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.
42 42  
43 -(((
44 -
45 -)))
46 46  
47 -(((
48 -LDDS45 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
49 -)))
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*.
50 50  
51 -(((
52 -
53 -)))
54 54  
55 -(((
56 -Each LDDS45 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 -)))
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.
58 58  
59 -(((
60 -
61 -)))
62 62  
63 -(((
64 -(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
65 -
66 -
36 +(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors
67 67  )))
68 68  )))
69 -)))
70 70  
71 -[[image:1654912858581-740.png]]
72 72  
41 +[[image:1654847051249-359.png]]
73 73  
74 74  
75 75  
... ... @@ -76,11 +76,10 @@
76 76  == ​1.2  Features ==
77 77  
78 78  * LoRaWAN 1.0.3 Class A
79 -* Ultra-low power consumption
48 +* Ultra low power consumption
80 80  * Distance Detection by Ultrasonic technology
81 -* Flat object range 30mm - 4500mm
50 +* Flat object range 280mm - 7500mm
82 82  * Accuracy: ±(1cm+S*0.3%) (S: Distance)
83 -* Measure Angle: 60°
84 84  * Cable Length : 25cm
85 85  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
86 86  * AT Commands to change parameters
... ... @@ -87,10 +87,8 @@
87 87  * Uplink on periodically
88 88  * Downlink to change configure
89 89  * IP66 Waterproof Enclosure
90 -* 8500mAh Battery for long term use
58 +* 4000mAh or 8500mAh Battery for long term use
91 91  
92 -
93 -
94 94  == 1.3  Specification ==
95 95  
96 96  === 1.3.1  Rated environmental conditions ===
... ... @@ -97,12 +97,12 @@
97 97  
98 98  [[image:image-20220610154839-1.png]]
99 99  
100 -(((
101 -**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)**
102 -)))
66 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
103 103  
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)**
104 104  
105 105  
71 +
106 106  === 1.3.2  Effective measurement range Reference beam pattern ===
107 107  
108 108  **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
... ... @@ -112,10 +112,7 @@
112 112  [[image:1654852253176-749.png]]
113 113  
114 114  
115 -
116 -(((
117 117  **(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.**
118 -)))
119 119  
120 120  
121 121  [[image:1654852175653-550.png]](% style="display:none" %) ** **
... ... @@ -134,8 +134,6 @@
134 134  * Sewer
135 135  * Bottom water level monitoring
136 136  
137 -
138 -
139 139  == 1.6  Pin mapping and power on ==
140 140  
141 141  
... ... @@ -182,17 +182,11 @@
182 182  [[image:image-20220607170145-1.jpeg]]
183 183  
184 184  
185 -(((
186 186  For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
187 -)))
188 188  
189 -(((
190 190  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
191 -)))
192 192  
193 -(((
194 194  **Add APP EUI in the application**
195 -)))
196 196  
197 197  [[image:image-20220610161353-4.png]]
198 198  
... ... @@ -235,15 +235,11 @@
235 235  == 2.3  ​Uplink Payload ==
236 236  
237 237  (((
238 -(((
239 239  LDDS75 will uplink payload via LoRaWAN with below payload format: 
240 -)))
241 241  
242 -(((
243 243  Uplink payload includes in total 4 bytes.
244 244  Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
245 245  )))
246 -)))
247 247  
248 248  (((
249 249  
... ... @@ -254,12 +254,12 @@
254 254  **Size (bytes)**
255 255  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
256 256  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
257 -[[Distance>>||anchor="H2.3.2A0Distance"]]
208 +[[Distance>>||anchor="H2.3.3A0Distance"]]
258 258  
259 259  (unit: mm)
260 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
261 -[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
262 -)))|[[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]]
263 263  
264 264  [[image:1654850511545-399.png]]
265 265  
... ... @@ -278,23 +278,17 @@
278 278  
279 279  === 2.3.2  Distance ===
280 280  
281 -(((
282 282  Get the distance. Flat object range 280mm - 7500mm.
283 -)))
284 284  
285 -(((
286 286  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.**
287 -)))
288 288  
289 289  
290 290  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
291 291  * 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.
292 292  
293 -
294 -
295 295  === 2.3.3  Interrupt Pin ===
296 296  
297 -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.
298 298  
299 299  **Example:**
300 300  
... ... @@ -320,18 +320,14 @@
320 320  
321 321  === 2.3.5  Sensor Flag ===
322 322  
323 -(((
324 324  0x01: Detect Ultrasonic Sensor
325 -)))
326 326  
327 -(((
328 328  0x00: No Ultrasonic Sensor
329 -)))
330 330  
331 331  
273 +===
274 +(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
332 332  
333 -=== 2.3.6  Decode payload in The Things Network ===
334 -
335 335  While using TTN network, you can add the payload format to decode the payload.
336 336  
337 337  
... ... @@ -339,9 +339,7 @@
339 339  
340 340  The payload decoder function for TTN V3 is here:
341 341  
342 -(((
343 343  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/]]
344 -)))
345 345  
346 346  
347 347  
... ... @@ -867,22 +867,13 @@
867 867  * Solid ON for 5 seconds once device successful Join the network.
868 868  * Blink once when device transmit a packet.
869 869  
870 -
871 -
872 872  == 2.8  ​Firmware Change Log ==
873 873  
874 874  
875 -(((
876 876  **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/]]
877 -)))
878 878  
879 -(((
880 -
881 -)))
882 882  
883 -(((
884 884  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
885 -)))
886 886  
887 887  
888 888  
... ... @@ -891,11 +891,9 @@
891 891  
892 892  [[image:image-20220610172003-1.png]]
893 893  
894 -
895 895  [[image:image-20220610172003-2.png]]
896 896  
897 897  
898 -
899 899  == 2.10  Battery Analysis ==
900 900  
901 901  === 2.10.1  Battery Type ===
... ... @@ -906,7 +906,7 @@
906 906  The battery related documents as below:
907 907  
908 908  * (((
909 -[[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]],
910 910  )))
911 911  * (((
912 912  [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
... ... @@ -922,7 +922,7 @@
922 922  === 2.10.2  Replace the battery ===
923 923  
924 924  (((
925 -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 wont be voltage drop between battery and main board.
926 926  )))
927 927  
928 928  (((
... ... @@ -930,12 +930,12 @@
930 930  )))
931 931  
932 932  (((
933 -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 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)
934 934  )))
935 935  
936 936  
937 937  
938 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
866 += 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
939 939  
940 940  (((
941 941  (((
... ... @@ -945,7 +945,7 @@
945 945  
946 946  * (((
947 947  (((
948 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
876 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
949 949  )))
950 950  )))
951 951  * (((
... ... @@ -1026,9 +1026,7 @@
1026 1026  [[image:image-20220610172924-5.png]]
1027 1027  
1028 1028  
1029 -(((
1030 1030  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:
1031 -)))
1032 1032  
1033 1033  
1034 1034   [[image:image-20220610172924-6.png||height="601" width="860"]]
... ... @@ -1044,6 +1044,8 @@
1044 1044  [[image:image-20220610173409-7.png]]
1045 1045  
1046 1046  
973 +
974 +
1047 1047  (((
1048 1048  (% style="color:#037691" %)**Downlink Command: 0x01**
1049 1049  )))
... ... @@ -1052,26 +1052,24 @@
1052 1052  (((
1053 1053  Format: Command Code (0x01) followed by 3 bytes time value.
1054 1054  
1055 -(((
1056 1056  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1057 -)))
1058 1058  
1059 1059  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1060 1060  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1061 1061  )))
1062 -)))
1063 1063  
1064 1064  
990 +
991 +)))
1065 1065  
1066 -
1067 -
1068 1068  == 3.3  Set Interrupt Mode ==
1069 1069  
1070 1070  Feature, Set Interrupt mode for GPIO_EXIT.
1071 1071  
997 +
1072 1072  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1073 1073  
1074 -[[image:image-20220610174917-9.png]]
1000 +[[image:image-20220610105907-1.png]]
1075 1075  
1076 1076  
1077 1077  (% style="color:#037691" %)**Downlink Command: 0x06**
... ... @@ -1078,82 +1078,207 @@
1078 1078  
1079 1079  Format: Command Code (0x06) followed by 3 bytes.
1080 1080  
1081 -(((
1082 1082  This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1083 -)))
1084 1084  
1085 1085  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1086 1086  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1087 1087  
1088 1088  
1013 += 5.  Battery & How to replace =
1089 1089  
1090 -= 4FAQ =
1015 +== 5.1  Battery Type ==
1091 1091  
1092 -== 4.1  What is the frequency plan for LDDS75? ==
1017 +(((
1018 +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.
1019 +)))
1093 1093  
1094 -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"]]
1021 +(((
1022 +The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1023 +)))
1095 1095  
1025 +[[image:1654593587246-335.png]]
1096 1096  
1097 1097  
1098 -== 4.2  How to change the LoRa Frequency Bands/Region ==
1028 +Minimum Working Voltage for the LLDS12:
1099 1099  
1100 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1101 -When downloading the images, choose the required image file for download. ​
1030 +LLDS12:  2.45v ~~ 3.6v
1102 1102  
1103 1103  
1104 1104  
1105 -== 4.3  Can I use LDDS75 in condensation environment? ==
1034 +== 5.2  Replace Battery ==
1106 1106  
1107 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1036 +(((
1037 +Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
1038 +)))
1108 1108  
1040 +(((
1041 +And make sure the positive and negative pins match.
1042 +)))
1109 1109  
1110 1110  
1111 -= 5.  Trouble Shooting =
1112 1112  
1113 -== 5.1  Why I cant join TTN V3 in US915 / AU915 bands? ==
1046 +== 5.3  Power Consumption Analyze ==
1114 1114  
1115 -It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1048 +(((
1049 +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.
1050 +)))
1116 1116  
1052 +(((
1053 +Instruction to use as below:
1054 +)))
1117 1117  
1118 -== 5.2  AT Command input doesn't work ==
1119 1119  
1057 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
1058 +
1059 +[[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/]]
1060 +
1061 +
1062 +**Step 2**: Open it and choose
1063 +
1064 +* Product Model
1065 +* Uplink Interval
1066 +* Working Mode
1067 +
1068 +And the Life expectation in difference case will be shown on the right.
1069 +
1070 +[[image:1654593605679-189.png]]
1071 +
1072 +
1073 +The battery related documents as below:
1074 +
1075 +* (((
1076 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1077 +)))
1078 +* (((
1079 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
1080 +)))
1081 +* (((
1082 +[[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]]
1083 +)))
1084 +
1085 +[[image:image-20220607172042-11.png]]
1086 +
1087 +
1088 +
1089 +=== 5.3.1  ​Battery Note ===
1090 +
1091 +(((
1092 +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.
1093 +)))
1094 +
1095 +
1096 +
1097 +=== ​5.3.2  Replace the battery ===
1098 +
1099 +(((
1100 +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.
1101 +)))
1102 +
1103 +(((
1104 +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)
1105 +)))
1106 +
1107 +
1108 +
1109 += 6.  Use AT Command =
1110 +
1111 +== 6.1  Access AT Commands ==
1112 +
1113 +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.
1114 +
1115 +[[image:1654593668970-604.png]]
1116 +
1117 +**Connection:**
1118 +
1119 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1120 +
1121 +(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1122 +
1123 +(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1124 +
1125 +
1126 +(((
1127 +(((
1128 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1129 +)))
1130 +
1131 +(((
1132 +LLDS12 will output system info once power on as below:
1133 +)))
1134 +)))
1135 +
1136 +
1137 + [[image:1654593712276-618.png]]
1138 +
1139 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1140 +
1141 +
1142 += 7.  FAQ =
1143 +
1144 +== 7.1  How to change the LoRa Frequency Bands/Region ==
1145 +
1146 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1147 +When downloading the images, choose the required image file for download. ​
1148 +
1149 +
1150 += 8.  Trouble Shooting =
1151 +
1152 +== 8.1  AT Commands input doesn’t work ==
1153 +
1154 +
1155 +(((
1120 1120  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.
1157 +)))
1121 1121  
1159 +
1160 +== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1161 +
1162 +
1122 1122  (((
1123 -
1164 +(% 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.)
1124 1124  )))
1125 1125  
1167 +(((
1168 +Troubleshooting: Please avoid use of this product under such circumstance in practice.
1169 +)))
1126 1126  
1127 -= 6.  Order Info =
1171 +(((
1172 +
1173 +)))
1128 1128  
1175 +(((
1176 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1177 +)))
1129 1129  
1130 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1179 +(((
1180 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1181 +)))
1131 1131  
1132 1132  
1133 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1134 1134  
1135 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1136 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1137 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1138 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1139 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1140 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1141 -* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1142 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1185 += 9.  Order Info =
1143 1143  
1144 -(% style="color:blue" %)**YY**(%%): Battery Option
1145 1145  
1146 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1147 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1188 +Part Number: (% style="color:blue" %)**LLDS12-XX**
1148 1148  
1149 1149  
1191 +(% style="color:blue" %)**XX**(%%): The default frequency band
1150 1150  
1151 -= 7. ​ Packing Info =
1193 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1194 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1195 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1196 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1197 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1198 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1199 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1200 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1152 1152  
1202 += 10. ​ Packing Info =
1153 1153  
1204 +
1154 1154  **Package Includes**:
1155 1155  
1156 -* LDDS75 LoRaWAN Distance Detection Sensor x 1
1207 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1157 1157  
1158 1158  **Dimension and weight**:
1159 1159  
... ... @@ -1162,9 +1162,7 @@
1162 1162  * Package Size / pcs : cm
1163 1163  * Weight / pcs : g
1164 1164  
1216 += 11.  ​Support =
1165 1165  
1166 -
1167 -= 8.  ​Support =
1168 -
1169 1169  * 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.
1170 1170  * 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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