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

From version 154.3
edited by Xiaoling
on 2022/06/11 10:02
Change comment: There is no comment for this version
To version 147.2
edited by Xiaoling
on 2022/06/10 17:34
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  
... ... @@ -89,7 +89,6 @@
89 89  * 4000mAh or 8500mAh Battery for long term use
90 90  
91 91  
92 -
93 93  == 1.3  Specification ==
94 94  
95 95  === 1.3.1  Rated environmental conditions ===
... ... @@ -96,12 +96,12 @@
96 96  
97 97  [[image:image-20220610154839-1.png]]
98 98  
99 -(((
100 -**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)**
101 -)))
67 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
102 102  
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)**
103 103  
104 104  
72 +
105 105  === 1.3.2  Effective measurement range Reference beam pattern ===
106 106  
107 107  **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
... ... @@ -111,10 +111,7 @@
111 111  [[image:1654852253176-749.png]]
112 112  
113 113  
114 -
115 -(((
116 116  **(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.**
117 -)))
118 118  
119 119  
120 120  [[image:1654852175653-550.png]](% style="display:none" %) ** **
... ... @@ -134,7 +134,6 @@
134 134  * Bottom water level monitoring
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"]]
210 +[[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"]]
213 +)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|(((
214 +[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]]
215 +)))|[[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.
... ... @@ -290,10 +290,9 @@
290 290  * 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.
291 291  
292 292  
293 -
294 294  === 2.3.3  Interrupt Pin ===
295 295  
296 -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.
297 297  
298 298  **Example:**
299 299  
... ... @@ -319,18 +319,14 @@
319 319  
320 320  === 2.3.5  Sensor Flag ===
321 321  
322 -(((
323 323  0x01: Detect Ultrasonic Sensor
324 -)))
325 325  
326 -(((
327 327  0x00: No Ultrasonic Sensor
328 -)))
329 329  
330 330  
276 +===
277 +(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
331 331  
332 -=== 2.3.6  Decode payload in The Things Network ===
333 -
334 334  While using TTN network, you can add the payload format to decode the payload.
335 335  
336 336  
... ... @@ -338,9 +338,7 @@
338 338  
339 339  The payload decoder function for TTN V3 is here:
340 340  
341 -(((
342 342  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/]]
343 -)))
344 344  
345 345  
346 346  
... ... @@ -867,21 +867,13 @@
867 867  * Blink once when device transmit a packet.
868 868  
869 869  
870 -
871 871  == 2.8  ​Firmware Change Log ==
872 872  
873 873  
874 -(((
875 875  **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/]]
876 -)))
877 877  
878 -(((
879 -
880 -)))
881 881  
882 -(((
883 883  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
884 -)))
885 885  
886 886  
887 887  
... ... @@ -890,13 +890,11 @@
890 890  
891 891  [[image:image-20220610172003-1.png]]
892 892  
893 -
894 894  [[image:image-20220610172003-2.png]]
895 895  
896 896  
831 +== 2.10  Battery Analysis ==
897 897  
898 -== 2.10  Battery Analysis ==
899 -
900 900  === 2.10.1  Battery Type ===
901 901  
902 902  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.
... ... @@ -905,7 +905,7 @@
905 905  The battery related documents as below:
906 906  
907 907  * (((
908 -[[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]],
909 909  )))
910 910  * (((
911 911  [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
... ... @@ -921,7 +921,7 @@
921 921  === 2.10.2  Replace the battery ===
922 922  
923 923  (((
924 -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.
925 925  )))
926 926  
927 927  (((
... ... @@ -929,12 +929,12 @@
929 929  )))
930 930  
931 931  (((
932 -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)
933 933  )))
934 934  
935 935  
936 936  
937 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
870 += 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
938 938  
939 939  (((
940 940  (((
... ... @@ -944,7 +944,7 @@
944 944  
945 945  * (((
946 946  (((
947 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
880 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
948 948  )))
949 949  )))
950 950  * (((
... ... @@ -1025,9 +1025,7 @@
1025 1025  [[image:image-20220610172924-5.png]]
1026 1026  
1027 1027  
1028 -(((
1029 1029  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:
1030 -)))
1031 1031  
1032 1032  
1033 1033   [[image:image-20220610172924-6.png||height="601" width="860"]]
... ... @@ -1043,116 +1043,304 @@
1043 1043  [[image:image-20220610173409-7.png]]
1044 1044  
1045 1045  
977 +
978 +
1046 1046  (((
1047 -(% style="color:#037691" %)**Downlink Command: 0x01**
980 +(% style="color:#037691" %)**Downlink Command: 0x06**
1048 1048  )))
1049 1049  
1050 1050  (((
984 +Format: Command Code (0x06) followed by 3 bytes.
985 +)))
986 +
1051 1051  (((
1052 -Format: Command Code (0x01) followed by 3 bytes time value.
988 +This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
989 +)))
1053 1053  
991 +* (((
992 +Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
993 +)))
994 +* (((
995 +Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
996 +)))
997 +
998 +== 3.3  Get Firmware Version Info ==
999 +
1000 +Feature: use downlink to get firmware version.
1001 +
1002 +(% style="color:#037691" %)**Downlink Command: 0x26**
1003 +
1004 +[[image:image-20220607171917-10.png]]
1005 +
1006 +* Reply to the confirmation package: 26 01
1007 +* Reply to non-confirmed packet: 26 00
1008 +
1009 +Device will send an uplink after got this downlink command. With below payload:
1010 +
1011 +Configures info payload:
1012 +
1013 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
1014 +|=(((
1015 +**Size(bytes)**
1016 +)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
1017 +|**Value**|Software Type|(((
1018 +Frequency
1019 +
1020 +Band
1021 +)))|Sub-band|(((
1022 +Firmware
1023 +
1024 +Version
1025 +)))|Sensor Type|Reserve|(((
1026 +[[Message Type>>||anchor="H2.3.7A0MessageType"]]
1027 +Always 0x02
1028 +)))
1029 +
1030 +**Software Type**: Always 0x03 for LLDS12
1031 +
1032 +
1033 +**Frequency Band**:
1034 +
1035 +*0x01: EU868
1036 +
1037 +*0x02: US915
1038 +
1039 +*0x03: IN865
1040 +
1041 +*0x04: AU915
1042 +
1043 +*0x05: KZ865
1044 +
1045 +*0x06: RU864
1046 +
1047 +*0x07: AS923
1048 +
1049 +*0x08: AS923-1
1050 +
1051 +*0x09: AS923-2
1052 +
1053 +*0xa0: AS923-3
1054 +
1055 +
1056 +**Sub-Band**: value 0x00 ~~ 0x08
1057 +
1058 +
1059 +**Firmware Version**: 0x0100, Means: v1.0.0 version
1060 +
1061 +
1062 +**Sensor Type**:
1063 +
1064 +0x01: LSE01
1065 +
1066 +0x02: LDDS75
1067 +
1068 +0x03: LDDS20
1069 +
1070 +0x04: LLMS01
1071 +
1072 +0x05: LSPH01
1073 +
1074 +0x06: LSNPK01
1075 +
1076 +0x07: LLDS12
1077 +
1078 +
1079 +
1080 += 5.  Battery & How to replace =
1081 +
1082 +== 5.1  Battery Type ==
1083 +
1054 1054  (((
1055 -If the downlink payload=0100003C, it means set the END Nodes Transmit Interval to 0x00003C=60(S), while type code is 01.
1085 +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.
1056 1056  )))
1057 1057  
1058 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1059 -* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1088 +(((
1089 +The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1060 1060  )))
1091 +
1092 +[[image:1654593587246-335.png]]
1093 +
1094 +
1095 +Minimum Working Voltage for the LLDS12:
1096 +
1097 +LLDS12:  2.45v ~~ 3.6v
1098 +
1099 +
1100 +
1101 +== 5.2  Replace Battery ==
1102 +
1103 +(((
1104 +Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
1061 1061  )))
1062 1062  
1107 +(((
1108 +And make sure the positive and negative pins match.
1109 +)))
1063 1063  
1064 1064  
1065 1065  
1113 +== 5.3  Power Consumption Analyze ==
1066 1066  
1067 -== 3.3  Set Interrupt Mode ==
1115 +(((
1116 +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.
1117 +)))
1068 1068  
1069 -Feature, Set Interrupt mode for GPIO_EXIT.
1119 +(((
1120 +Instruction to use as below:
1121 +)))
1070 1070  
1071 -(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1072 1072  
1073 -[[image:image-20220610174917-9.png]]
1124 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
1074 1074  
1126 +[[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/]]
1075 1075  
1076 -(% style="color:#037691" %)**Downlink Command: 0x06**
1077 1077  
1078 -Format: Command Code (0x06) followed by 3 bytes.
1129 +**Step 2**: Open it and choose
1079 1079  
1131 +* Product Model
1132 +* Uplink Interval
1133 +* Working Mode
1134 +
1135 +And the Life expectation in difference case will be shown on the right.
1136 +
1137 +[[image:1654593605679-189.png]]
1138 +
1139 +
1140 +The battery related documents as below:
1141 +
1142 +* (((
1143 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1144 +)))
1145 +* (((
1146 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
1147 +)))
1148 +* (((
1149 +[[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]]
1150 +)))
1151 +
1152 +[[image:image-20220607172042-11.png]]
1153 +
1154 +
1155 +
1156 +=== 5.3.1  ​Battery Note ===
1157 +
1080 1080  (((
1081 -This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1159 +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.
1082 1082  )))
1083 1083  
1084 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1085 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1086 1086  
1087 1087  
1164 +=== ​5.3.2  Replace the battery ===
1088 1088  
1089 -= 4.  FAQ =
1166 +(((
1167 +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.
1168 +)))
1090 1090  
1091 -== 4.1  What is the frequency plan for LDDS75? ==
1170 +(((
1171 +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)
1172 +)))
1092 1092  
1093 -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"]]
1094 1094  
1095 1095  
1176 += 6.  Use AT Command =
1096 1096  
1097 -== 4.2  How to change the LoRa Frequency Bands/Region ==
1178 +== 6.1  Access AT Commands ==
1098 1098  
1099 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1100 -When downloading the images, choose the required image file for download. ​
1180 +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  
1182 +[[image:1654593668970-604.png]]
1102 1102  
1184 +**Connection:**
1103 1103  
1104 -== 4.3  Can I use LDDS75 in condensation environment? ==
1186 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1105 1105  
1106 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1188 +(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1107 1107  
1190 +(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1108 1108  
1109 1109  
1110 -= 5.  Trouble Shooting =
1193 +(((
1194 +(((
1195 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1196 +)))
1111 1111  
1112 -== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1198 +(((
1199 +LLDS12 will output system info once power on as below:
1200 +)))
1201 +)))
1113 1113  
1114 -It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1115 1115  
1204 + [[image:1654593712276-618.png]]
1116 1116  
1117 -== 5.2  AT Command input doesn't work ==
1206 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1118 1118  
1208 +
1209 += 7.  FAQ =
1210 +
1211 +== 7.1  How to change the LoRa Frequency Bands/Region ==
1212 +
1213 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1214 +When downloading the images, choose the required image file for download. ​
1215 +
1216 +
1217 += 8.  Trouble Shooting =
1218 +
1219 +== 8.1  AT Commands input doesn’t work ==
1220 +
1221 +
1222 +(((
1119 1119  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.
1224 +)))
1120 1120  
1226 +
1227 +== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1228 +
1229 +
1121 1121  (((
1122 -
1231 +(% 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.)
1123 1123  )))
1124 1124  
1234 +(((
1235 +Troubleshooting: Please avoid use of this product under such circumstance in practice.
1236 +)))
1125 1125  
1126 -= 6.  Order Info =
1238 +(((
1239 +
1240 +)))
1127 1127  
1242 +(((
1243 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1244 +)))
1128 1128  
1129 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1246 +(((
1247 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1248 +)))
1130 1130  
1131 1131  
1132 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1133 1133  
1134 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1135 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1136 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1137 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1138 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1139 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1140 -* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1141 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1252 += 9.  Order Info =
1142 1142  
1143 -(% style="color:blue" %)**YY**(%%): Battery Option
1144 1144  
1145 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1146 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1255 +Part Number: (% style="color:blue" %)**LLDS12-XX**
1147 1147  
1148 1148  
1258 +(% style="color:blue" %)**XX**(%%): The default frequency band
1149 1149  
1150 -= 7. ​ Packing Info =
1260 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1261 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1262 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1263 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1264 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1265 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1266 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1267 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1151 1151  
1269 += 10. ​ Packing Info =
1152 1152  
1271 +
1153 1153  **Package Includes**:
1154 1154  
1155 -* LDDS75 LoRaWAN Distance Detection Sensor x 1
1274 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1156 1156  
1157 1157  **Dimension and weight**:
1158 1158  
... ... @@ -1161,9 +1161,7 @@
1161 1161  * Package Size / pcs : cm
1162 1162  * Weight / pcs : g
1163 1163  
1283 += 11.  ​Support =
1164 1164  
1165 -
1166 -= 8.  ​Support =
1167 -
1168 1168  * 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.
1169 1169  * 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]].
1654912614655-664.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -169.3 KB
Content
1654912858581-740.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -84.0 KB
Content
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