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

From version 151.12
edited by Xiaoling
on 2022/06/11 09:38
Change comment: There is no comment for this version
To version 147.1
edited by Xiaoling
on 2022/06/10 17:34
Change comment: Uploaded new attachment "image-20220610173409-7.png", version {1}

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]]
... ... @@ -88,7 +88,6 @@
88 88  
89 89  
90 90  
91 -
92 92  == 1.3  Specification ==
93 93  
94 94  === 1.3.1  Rated environmental conditions ===
... ... @@ -95,12 +95,12 @@
95 95  
96 96  [[image:image-20220610154839-1.png]]
97 97  
98 -(((
99 -**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)**
100 -)))
68 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
101 101  
70 +**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)**
102 102  
103 103  
73 +
104 104  === 1.3.2  Effective measurement range Reference beam pattern ===
105 105  
106 106  **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
... ... @@ -110,10 +110,7 @@
110 110  [[image:1654852253176-749.png]]
111 111  
112 112  
113 -
114 -(((
115 115  **(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.**
116 -)))
117 117  
118 118  
119 119  [[image:1654852175653-550.png]](% style="display:none" %) ** **
... ... @@ -134,7 +134,6 @@
134 134  
135 135  
136 136  
137 -
138 138  == 1.6  Pin mapping and power on ==
139 139  
140 140  
... ... @@ -181,17 +181,11 @@
181 181  [[image:image-20220607170145-1.jpeg]]
182 182  
183 183  
184 -(((
185 185  For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
186 -)))
187 187  
188 -(((
189 189  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
190 -)))
191 191  
192 -(((
193 193  **Add APP EUI in the application**
194 -)))
195 195  
196 196  [[image:image-20220610161353-4.png]]
197 197  
... ... @@ -234,15 +234,11 @@
234 234  == 2.3  ​Uplink Payload ==
235 235  
236 236  (((
237 -(((
238 238  LDDS75 will uplink payload via LoRaWAN with below payload format: 
239 -)))
240 240  
241 -(((
242 242  Uplink payload includes in total 4 bytes.
243 243  Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
244 244  )))
245 -)))
246 246  
247 247  (((
248 248  
... ... @@ -253,12 +253,12 @@
253 253  **Size (bytes)**
254 254  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
255 255  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
256 -[[Distance>>||anchor="H2.3.2A0Distance"]]
212 +[[Distance>>||anchor="H2.3.3A0Distance"]]
257 257  
258 258  (unit: mm)
259 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
260 -[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
261 -)))|[[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]]
262 262  
263 263  [[image:1654850511545-399.png]]
264 264  
... ... @@ -277,13 +277,9 @@
277 277  
278 278  === 2.3.2  Distance ===
279 279  
280 -(((
281 281  Get the distance. Flat object range 280mm - 7500mm.
282 -)))
283 283  
284 -(((
285 285  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.**
286 -)))
287 287  
288 288  
289 289  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
... ... @@ -291,10 +291,9 @@
291 291  
292 292  
293 293  
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.
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.
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  
279 +===
280 +(% 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  
... ... @@ -869,21 +869,13 @@
869 869  
870 870  
871 871  
872 -
873 873  == 2.8  ​Firmware Change Log ==
874 874  
875 875  
876 -(((
877 877  **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/]]
878 -)))
879 879  
880 -(((
881 -
882 -)))
883 883  
884 -(((
885 885  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
886 -)))
887 887  
888 888  
889 889  
... ... @@ -892,13 +892,11 @@
892 892  
893 893  [[image:image-20220610172003-1.png]]
894 894  
895 -
896 896  [[image:image-20220610172003-2.png]]
897 897  
898 898  
835 +== 2.10  Battery Analysis  ==
899 899  
900 -== 2.10  Battery Analysis ==
901 -
902 902  === 2.10.1  Battery Type ===
903 903  
904 904  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.
... ... @@ -907,7 +907,7 @@
907 907  The battery related documents as below:
908 908  
909 909  * (((
910 -[[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]],
911 911  )))
912 912  * (((
913 913  [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
... ... @@ -923,7 +923,7 @@
923 923  === 2.10.2  Replace the battery ===
924 924  
925 925  (((
926 -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 +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.
927 927  )))
928 928  
929 929  (((
... ... @@ -931,22 +931,22 @@
931 931  )))
932 932  
933 933  (((
934 -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)
869 +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)
935 935  )))
936 936  
937 937  
938 938  
939 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
874 += 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
940 940  
941 941  (((
942 942  (((
943 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
878 +Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
944 944  )))
945 945  )))
946 946  
947 947  * (((
948 948  (((
949 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
884 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
950 950  )))
951 951  )))
952 952  * (((
... ... @@ -961,7 +961,7 @@
961 961  )))
962 962  
963 963  (((
964 -There are two kinds of commands to configure LDDS75, they are:
899 +There are two kinds of commands to configure LLDS12, they are:
965 965  )))
966 966  )))
967 967  
... ... @@ -1002,158 +1002,351 @@
1002 1002  
1003 1003  * (((
1004 1004  (((
1005 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
940 +(% style="color:#4f81bd" %)** Commands special design for LLDS12**
1006 1006  )))
1007 1007  )))
1008 1008  
1009 1009  (((
1010 1010  (((
1011 -These commands only valid for LDDS75, as below:
946 +These commands only valid for LLDS12, as below:
1012 1012  )))
1013 1013  )))
1014 1014  
1015 1015  
1016 1016  
1017 -== 3.1  Access AT Commands ==
952 +== 4.1  Set Transmit Interval Time ==
1018 1018  
1019 -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.
954 +Feature: Change LoRaWAN End Node Transmit Interval.
1020 1020  
1021 -[[image:image-20220610172924-4.png||height="483" width="988"]]
956 +(% style="color:#037691" %)**AT Command: AT+TDC**
1022 1022  
958 +[[image:image-20220607171554-8.png]]
1023 1023  
1024 -Or if you have below board, use below connection:
1025 1025  
961 +(((
962 +(% style="color:#037691" %)**Downlink Command: 0x01**
963 +)))
1026 1026  
1027 -[[image:image-20220610172924-5.png]]
965 +(((
966 +Format: Command Code (0x01) followed by 3 bytes time value.
967 +)))
1028 1028  
969 +(((
970 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
971 +)))
1029 1029  
973 +* (((
974 +Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
975 +)))
976 +* (((
977 +Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
978 +)))
979 +
980 +== 4.2  Set Interrupt Mode ==
981 +
982 +Feature, Set Interrupt mode for GPIO_EXIT.
983 +
984 +(% style="color:#037691" %)**AT Command: AT+INTMOD**
985 +
986 +[[image:image-20220610105806-2.png]]
987 +
988 +
1030 1030  (((
1031 -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:
990 +(% style="color:#037691" %)**Downlink Command: 0x06**
1032 1032  )))
1033 1033  
993 +(((
994 +Format: Command Code (0x06) followed by 3 bytes.
995 +)))
1034 1034  
1035 - [[image:image-20220610172924-6.png||height="601" width="860"]]
997 +(((
998 +This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
999 +)))
1036 1036  
1001 +* (((
1002 +Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1003 +)))
1004 +* (((
1005 +Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1006 +)))
1037 1037  
1008 +== 4.3  Get Firmware Version Info ==
1038 1038  
1039 -== 3.2  Set Transmit Interval Time ==
1010 +Feature: use downlink to get firmware version.
1040 1040  
1041 -Feature: Change LoRaWAN End Node Transmit Interval.
1012 +(% style="color:#037691" %)**Downlink Command: 0x26**
1042 1042  
1043 -(% style="color:#037691" %)**AT Command: AT+TDC**
1014 +[[image:image-20220607171917-10.png]]
1044 1044  
1045 -[[image:image-20220610173409-7.png]]
1016 +* Reply to the confirmation package: 26 01
1017 +* Reply to non-confirmed packet: 26 00
1046 1046  
1019 +Device will send an uplink after got this downlink command. With below payload:
1047 1047  
1021 +Configures info payload:
1022 +
1023 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
1024 +|=(((
1025 +**Size(bytes)**
1026 +)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
1027 +|**Value**|Software Type|(((
1028 +Frequency
1029 +
1030 +Band
1031 +)))|Sub-band|(((
1032 +Firmware
1033 +
1034 +Version
1035 +)))|Sensor Type|Reserve|(((
1036 +[[Message Type>>||anchor="H2.3.7A0MessageType"]]
1037 +Always 0x02
1038 +)))
1039 +
1040 +**Software Type**: Always 0x03 for LLDS12
1041 +
1042 +
1043 +**Frequency Band**:
1044 +
1045 +*0x01: EU868
1046 +
1047 +*0x02: US915
1048 +
1049 +*0x03: IN865
1050 +
1051 +*0x04: AU915
1052 +
1053 +*0x05: KZ865
1054 +
1055 +*0x06: RU864
1056 +
1057 +*0x07: AS923
1058 +
1059 +*0x08: AS923-1
1060 +
1061 +*0x09: AS923-2
1062 +
1063 +*0xa0: AS923-3
1064 +
1065 +
1066 +**Sub-Band**: value 0x00 ~~ 0x08
1067 +
1068 +
1069 +**Firmware Version**: 0x0100, Means: v1.0.0 version
1070 +
1071 +
1072 +**Sensor Type**:
1073 +
1074 +0x01: LSE01
1075 +
1076 +0x02: LDDS75
1077 +
1078 +0x03: LDDS20
1079 +
1080 +0x04: LLMS01
1081 +
1082 +0x05: LSPH01
1083 +
1084 +0x06: LSNPK01
1085 +
1086 +0x07: LLDS12
1087 +
1088 +
1089 +
1090 += 5.  Battery & How to replace =
1091 +
1092 +== 5.1  Battery Type ==
1093 +
1048 1048  (((
1049 -(% style="color:#037691" %)**Downlink Command: 0x01**
1095 +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.
1050 1050  )))
1051 1051  
1052 1052  (((
1099 +The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1100 +)))
1101 +
1102 +[[image:1654593587246-335.png]]
1103 +
1104 +
1105 +Minimum Working Voltage for the LLDS12:
1106 +
1107 +LLDS12:  2.45v ~~ 3.6v
1108 +
1109 +
1110 +
1111 +== 5.2  Replace Battery ==
1112 +
1053 1053  (((
1054 -Format: Command Code (0x01) followed by 3 bytes time value.
1114 +Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
1115 +)))
1055 1055  
1056 1056  (((
1057 -If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1118 +And make sure the positive and negative pins match.
1058 1058  )))
1059 1059  
1060 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1061 -* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1121 +
1122 +
1123 +== 5.3  Power Consumption Analyze ==
1124 +
1125 +(((
1126 +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.
1062 1062  )))
1128 +
1129 +(((
1130 +Instruction to use as below:
1063 1063  )))
1064 1064  
1065 1065  
1134 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
1066 1066  
1136 +[[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/]]
1067 1067  
1068 1068  
1069 -== 3.3  Set Interrupt Mode ==
1139 +**Step 2**: Open it and choose
1070 1070  
1071 -Feature, Set Interrupt mode for GPIO_EXIT.
1141 +* Product Model
1142 +* Uplink Interval
1143 +* Working Mode
1072 1072  
1073 -(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1145 +And the Life expectation in difference case will be shown on the right.
1074 1074  
1075 -[[image:image-20220610174917-9.png]]
1147 +[[image:1654593605679-189.png]]
1076 1076  
1077 1077  
1078 -(% style="color:#037691" %)**Downlink Command: 0x06**
1150 +The battery related documents as below:
1079 1079  
1080 -Format: Command Code (0x06) followed by 3 bytes.
1152 +* (((
1153 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1154 +)))
1155 +* (((
1156 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
1157 +)))
1158 +* (((
1159 +[[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]]
1160 +)))
1081 1081  
1162 +[[image:image-20220607172042-11.png]]
1163 +
1164 +
1165 +
1166 +=== 5.3.1  ​Battery Note ===
1167 +
1082 1082  (((
1083 -This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1169 +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.
1084 1084  )))
1085 1085  
1086 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1087 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1088 1088  
1089 1089  
1174 +=== ​5.3.2  Replace the battery ===
1090 1090  
1176 +(((
1177 +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.
1178 +)))
1091 1091  
1092 -= 4.  FAQ =
1180 +(((
1181 +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)
1182 +)))
1093 1093  
1094 -== 4.1  What is the frequency plan for LDDS75? ==
1095 1095  
1096 -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"]]
1097 1097  
1186 += 6.  Use AT Command =
1098 1098  
1188 +== 6.1  Access AT Commands ==
1099 1099  
1100 -== 4.2  How to change the LoRa Frequency Bands/Region ==
1190 +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.
1101 1101  
1102 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1103 -When downloading the images, choose the required image file for download. ​
1192 +[[image:1654593668970-604.png]]
1104 1104  
1194 +**Connection:**
1105 1105  
1196 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1106 1106  
1107 -== 4.3  Can I use LDDS75 in condensation environment? ==
1198 +(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1108 1108  
1109 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1200 +(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1110 1110  
1111 1111  
1203 +(((
1204 +(((
1205 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1206 +)))
1112 1112  
1113 -= 5.  Trouble Shooting =
1208 +(((
1209 +LLDS12 will output system info once power on as below:
1210 +)))
1211 +)))
1114 1114  
1115 -== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1116 1116  
1117 -It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1214 + [[image:1654593712276-618.png]]
1118 1118  
1216 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1119 1119  
1120 -== 5.2  AT Command input doesn't work ==
1121 1121  
1219 += 7.  FAQ =
1220 +
1221 +== 7.1  How to change the LoRa Frequency Bands/Region ==
1222 +
1223 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1224 +When downloading the images, choose the required image file for download. ​
1225 +
1226 +
1227 += 8.  Trouble Shooting =
1228 +
1229 +== 8.1  AT Commands input doesn’t work ==
1230 +
1231 +
1232 +(((
1122 1122  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.
1234 +)))
1123 1123  
1236 +
1237 +== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1238 +
1239 +
1124 1124  (((
1241 +(% 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.)
1242 +)))
1243 +
1244 +(((
1245 +Troubleshooting: Please avoid use of this product under such circumstance in practice.
1246 +)))
1247 +
1248 +(((
1125 1125  
1126 1126  )))
1127 1127  
1252 +(((
1253 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1254 +)))
1128 1128  
1129 -= 6.  Order Info =
1256 +(((
1257 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1258 +)))
1130 1130  
1131 1131  
1132 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1133 1133  
1262 += 9.  Order Info =
1134 1134  
1135 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1136 1136  
1137 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1138 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1139 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1140 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1141 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1142 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1143 -* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1144 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1265 +Part Number: (% style="color:blue" %)**LLDS12-XX**
1145 1145  
1146 -(% style="color:blue" %)**YY**(%%): Battery Option
1147 1147  
1148 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1149 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1268 +(% style="color:blue" %)**XX**(%%): The default frequency band
1150 1150  
1151 -= 7. ​ Packing Info =
1270 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1271 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1272 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1273 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1274 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1275 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1276 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1277 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1152 1152  
1279 += 10. ​ Packing Info =
1153 1153  
1281 +
1154 1154  **Package Includes**:
1155 1155  
1156 -* LDDS75 LoRaWAN Distance Detection Sensor x 1
1284 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1157 1157  
1158 1158  **Dimension and weight**:
1159 1159  
... ... @@ -1162,7 +1162,7 @@
1162 1162  * Package Size / pcs : cm
1163 1163  * Weight / pcs : g
1164 1164  
1165 -= 8.  ​Support =
1293 += 11.  ​Support =
1166 1166  
1167 1167  * 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.
1168 1168  * 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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