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

From version 152.3
edited by Xiaoling
on 2022/06/14 17:18
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
... ... @@ -1,21 +1,15 @@
1 1  (% style="text-align:center" %)
2 2  [[image:1654846127817-788.png]]
3 3  
4 +**Contents:**
4 4  
5 5  
6 6  
7 7  
8 -**Table of Contents:**
9 9  
10 -{{toc/}}
11 11  
12 12  
13 13  
14 -
15 -
16 -
17 -
18 -
19 19  = 1.  Introduction =
20 20  
21 21  == 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
... ... @@ -24,31 +24,24 @@
24 24  
25 25  
26 26  (((
27 -(((
28 28  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.
29 -)))
30 30  
31 -(((
23 +
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 -(((
26 +
36 36  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.
37 -)))
38 38  
39 -(((
29 +
40 40  LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
41 -)))
42 42  
43 -(((
32 +
44 44  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.
45 -)))
46 46  
47 -(((
48 -(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
35 +
36 +(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors
49 49  )))
50 50  )))
51 -)))
52 52  
53 53  
54 54  [[image:1654847051249-359.png]]
... ... @@ -78,12 +78,12 @@
78 78  
79 79  [[image:image-20220610154839-1.png]]
80 80  
81 -(((
82 -**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)**
83 -)))
68 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
84 84  
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)**
85 85  
86 86  
73 +
87 87  === 1.3.2  Effective measurement range Reference beam pattern ===
88 88  
89 89  **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
... ... @@ -93,10 +93,7 @@
93 93  [[image:1654852253176-749.png]]
94 94  
95 95  
96 -
97 -(((
98 98  **(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.**
99 -)))
100 100  
101 101  
102 102  [[image:1654852175653-550.png]](% style="display:none" %) ** **
... ... @@ -163,17 +163,11 @@
163 163  [[image:image-20220607170145-1.jpeg]]
164 164  
165 165  
166 -(((
167 167  For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
168 -)))
169 169  
170 -(((
171 171  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
172 -)))
173 173  
174 -(((
175 175  **Add APP EUI in the application**
176 -)))
177 177  
178 178  [[image:image-20220610161353-4.png]]
179 179  
... ... @@ -216,15 +216,11 @@
216 216  == 2.3  ​Uplink Payload ==
217 217  
218 218  (((
219 -(((
220 220  LDDS75 will uplink payload via LoRaWAN with below payload format: 
221 -)))
222 222  
223 -(((
224 224  Uplink payload includes in total 4 bytes.
225 225  Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
226 226  )))
227 -)))
228 228  
229 229  (((
230 230  
... ... @@ -235,12 +235,12 @@
235 235  **Size (bytes)**
236 236  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
237 237  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
238 -[[Distance>>||anchor="H2.3.2A0Distance"]]
212 +[[Distance>>||anchor="H2.3.3A0Distance"]]
239 239  
240 240  (unit: mm)
241 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
242 -[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
243 -)))|[[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]]
244 244  
245 245  [[image:1654850511545-399.png]]
246 246  
... ... @@ -259,13 +259,9 @@
259 259  
260 260  === 2.3.2  Distance ===
261 261  
262 -(((
263 263  Get the distance. Flat object range 280mm - 7500mm.
264 -)))
265 265  
266 -(((
267 267  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.**
268 -)))
269 269  
270 270  
271 271  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
... ... @@ -275,7 +275,7 @@
275 275  
276 276  === 2.3.3  Interrupt Pin ===
277 277  
278 -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.
279 279  
280 280  **Example:**
281 281  
... ... @@ -301,18 +301,14 @@
301 301  
302 302  === 2.3.5  Sensor Flag ===
303 303  
304 -(((
305 305  0x01: Detect Ultrasonic Sensor
306 -)))
307 307  
308 -(((
309 309  0x00: No Ultrasonic Sensor
310 -)))
311 311  
312 312  
279 +===
280 +(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
313 313  
314 -=== 2.3.6  Decode payload in The Things Network ===
315 -
316 316  While using TTN network, you can add the payload format to decode the payload.
317 317  
318 318  
... ... @@ -320,9 +320,7 @@
320 320  
321 321  The payload decoder function for TTN V3 is here:
322 322  
323 -(((
324 324  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/]]
325 -)))
326 326  
327 327  
328 328  
... ... @@ -853,17 +853,10 @@
853 853  == 2.8  ​Firmware Change Log ==
854 854  
855 855  
856 -(((
857 857  **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/]]
858 -)))
859 859  
860 -(((
861 -
862 -)))
863 863  
864 -(((
865 865  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
866 -)))
867 867  
868 868  
869 869  
... ... @@ -872,13 +872,11 @@
872 872  
873 873  [[image:image-20220610172003-1.png]]
874 874  
875 -
876 876  [[image:image-20220610172003-2.png]]
877 877  
878 878  
835 +== 2.10  Battery Analysis  ==
879 879  
880 -== 2.10  Battery Analysis ==
881 -
882 882  === 2.10.1  Battery Type ===
883 883  
884 884  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.
... ... @@ -887,7 +887,7 @@
887 887  The battery related documents as below:
888 888  
889 889  * (((
890 -[[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]],
891 891  )))
892 892  * (((
893 893  [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
... ... @@ -903,7 +903,7 @@
903 903  === 2.10.2  Replace the battery ===
904 904  
905 905  (((
906 -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.
907 907  )))
908 908  
909 909  (((
... ... @@ -911,22 +911,22 @@
911 911  )))
912 912  
913 913  (((
914 -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)
915 915  )))
916 916  
917 917  
918 918  
919 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
874 += 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
920 920  
921 921  (((
922 922  (((
923 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
878 +Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
924 924  )))
925 925  )))
926 926  
927 927  * (((
928 928  (((
929 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
884 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
930 930  )))
931 931  )))
932 932  * (((
... ... @@ -941,7 +941,7 @@
941 941  )))
942 942  
943 943  (((
944 -There are two kinds of commands to configure LDDS75, they are:
899 +There are two kinds of commands to configure LLDS12, they are:
945 945  )))
946 946  )))
947 947  
... ... @@ -982,159 +982,351 @@
982 982  
983 983  * (((
984 984  (((
985 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
940 +(% style="color:#4f81bd" %)** Commands special design for LLDS12**
986 986  )))
987 987  )))
988 988  
989 989  (((
990 990  (((
991 -These commands only valid for LDDS75, as below:
946 +These commands only valid for LLDS12, as below:
992 992  )))
993 993  )))
994 994  
995 995  
996 996  
997 -== 3.1  Access AT Commands ==
952 +== 4.1  Set Transmit Interval Time ==
998 998  
999 -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.
1000 1000  
1001 -[[image:image-20220610172924-4.png||height="483" width="988"]]
956 +(% style="color:#037691" %)**AT Command: AT+TDC**
1002 1002  
958 +[[image:image-20220607171554-8.png]]
1003 1003  
1004 -Or if you have below board, use below connection:
1005 1005  
961 +(((
962 +(% style="color:#037691" %)**Downlink Command: 0x01**
963 +)))
1006 1006  
1007 -[[image:image-20220610172924-5.png]]
965 +(((
966 +Format: Command Code (0x01) followed by 3 bytes time value.
967 +)))
1008 1008  
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 +)))
1009 1009  
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 +
1010 1010  (((
1011 -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**
1012 1012  )))
1013 1013  
993 +(((
994 +Format: Command Code (0x06) followed by 3 bytes.
995 +)))
1014 1014  
1015 - [[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 +)))
1016 1016  
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 +)))
1017 1017  
1008 +== 4.3  Get Firmware Version Info ==
1018 1018  
1019 -== 3.2  Set Transmit Interval Time ==
1010 +Feature: use downlink to get firmware version.
1020 1020  
1021 -Feature: Change LoRaWAN End Node Transmit Interval.
1012 +(% style="color:#037691" %)**Downlink Command: 0x26**
1022 1022  
1023 -(% style="color:#037691" %)**AT Command: AT+TDC**
1014 +[[image:image-20220607171917-10.png]]
1024 1024  
1025 -[[image:image-20220610173409-7.png]]
1016 +* Reply to the confirmation package: 26 01
1017 +* Reply to non-confirmed packet: 26 00
1026 1026  
1019 +Device will send an uplink after got this downlink command. With below payload:
1027 1027  
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 +
1028 1028  (((
1029 -(% 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.
1030 1030  )))
1031 1031  
1032 1032  (((
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 +
1033 1033  (((
1034 -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 +)))
1035 1035  
1036 1036  (((
1037 -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.
1038 1038  )))
1039 1039  
1040 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1041 -* 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.
1042 1042  )))
1128 +
1129 +(((
1130 +Instruction to use as below:
1043 1043  )))
1044 1044  
1045 1045  
1134 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
1046 1046  
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/]]
1047 1047  
1048 1048  
1049 -== 3.3  Set Interrupt Mode ==
1139 +**Step 2**: Open it and choose
1050 1050  
1051 -Feature, Set Interrupt mode for GPIO_EXIT.
1141 +* Product Model
1142 +* Uplink Interval
1143 +* Working Mode
1052 1052  
1053 -(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1145 +And the Life expectation in difference case will be shown on the right.
1054 1054  
1055 -[[image:image-20220610174917-9.png]]
1147 +[[image:1654593605679-189.png]]
1056 1056  
1057 1057  
1058 -(% style="color:#037691" %)**Downlink Command: 0x06**
1150 +The battery related documents as below:
1059 1059  
1060 -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 +)))
1061 1061  
1162 +[[image:image-20220607172042-11.png]]
1163 +
1164 +
1165 +
1166 +=== 5.3.1  ​Battery Note ===
1167 +
1062 1062  (((
1063 -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.
1064 1064  )))
1065 1065  
1066 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1067 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1068 1068  
1069 1069  
1174 +=== ​5.3.2  Replace the battery ===
1070 1070  
1071 -= 4.  FAQ =
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 +)))
1072 1072  
1073 -== 4.1  What is the frequency plan for LDDS75? ==
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 +)))
1074 1074  
1075 -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"]]
1076 1076  
1077 1077  
1186 += 6.  Use AT Command =
1078 1078  
1079 -== 4.2  How to change the LoRa Frequency Bands/Region ==
1188 +== 6.1  Access AT Commands ==
1080 1080  
1081 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1082 -When downloading the images, choose the required image file for download. ​
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.
1083 1083  
1192 +[[image:1654593668970-604.png]]
1084 1084  
1194 +**Connection:**
1085 1085  
1086 -== 4.3  Can I use LDDS75 in condensation environment? ==
1196 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1087 1087  
1088 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1198 +(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1089 1089  
1200 +(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1090 1090  
1091 1091  
1092 -= 5.  Trouble Shooting =
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 +)))
1093 1093  
1094 -== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1208 +(((
1209 +LLDS12 will output system info once power on as below:
1210 +)))
1211 +)))
1095 1095  
1096 -It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1097 1097  
1214 + [[image:1654593712276-618.png]]
1098 1098  
1099 -== 5.2  AT Command input doesn't work ==
1216 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1100 1100  
1218 +
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 +(((
1101 1101  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 +)))
1102 1102  
1236 +
1237 +== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1238 +
1239 +
1103 1103  (((
1104 -
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.)
1105 1105  )))
1106 1106  
1244 +(((
1245 +Troubleshooting: Please avoid use of this product under such circumstance in practice.
1246 +)))
1107 1107  
1108 -= 6.  Order Info =
1248 +(((
1249 +
1250 +)))
1109 1109  
1252 +(((
1253 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1254 +)))
1110 1110  
1111 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1256 +(((
1257 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1258 +)))
1112 1112  
1113 1113  
1114 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1115 1115  
1116 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1117 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1118 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1119 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1120 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1121 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1122 -* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1123 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1262 += 9.  Order Info =
1124 1124  
1125 -(% style="color:blue" %)**YY**(%%): Battery Option
1126 1126  
1127 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1128 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1265 +Part Number: (% style="color:blue" %)**LLDS12-XX**
1129 1129  
1130 1130  
1268 +(% style="color:blue" %)**XX**(%%): The default frequency band
1131 1131  
1132 -= 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
1133 1133  
1279 += 10. ​ Packing Info =
1134 1134  
1281 +
1135 1135  **Package Includes**:
1136 1136  
1137 -* LDDS75 LoRaWAN Distance Detection Sensor x 1
1284 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1138 1138  
1139 1139  **Dimension and weight**:
1140 1140  
... ... @@ -1143,9 +1143,7 @@
1143 1143  * Package Size / pcs : cm
1144 1144  * Weight / pcs : g
1145 1145  
1293 += 11.  ​Support =
1146 1146  
1147 -
1148 -= 8.  ​Support =
1149 -
1150 1150  * 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.
1151 1151  * 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]].
image-20220610174836-8.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -34.3 KB
Content
image-20220610174917-9.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -34.3 KB
Content