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

From version 151.6
edited by Xiaoling
on 2022/06/11 09:33
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]]
... ... @@ -88,8 +88,6 @@
88 88  
89 89  
90 90  
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 -)))
68 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
102 102  
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)**
103 103  
104 104  
73 +
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" %) ** **
... ... @@ -135,8 +135,6 @@
135 135  
136 136  
137 137  
138 -
139 -
140 140  == 1.6  Pin mapping and power on ==
141 141  
142 142  
... ... @@ -183,17 +183,11 @@
183 183  [[image:image-20220607170145-1.jpeg]]
184 184  
185 185  
186 -(((
187 187  For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
188 -)))
189 189  
190 -(((
191 191  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
192 -)))
193 193  
194 -(((
195 195  **Add APP EUI in the application**
196 -)))
197 197  
198 198  [[image:image-20220610161353-4.png]]
199 199  
... ... @@ -236,15 +236,11 @@
236 236  == 2.3  ​Uplink Payload ==
237 237  
238 238  (((
239 -(((
240 240  LDDS75 will uplink payload via LoRaWAN with below payload format: 
241 -)))
242 242  
243 -(((
244 244  Uplink payload includes in total 4 bytes.
245 245  Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
246 246  )))
247 -)))
248 248  
249 249  (((
250 250  
... ... @@ -255,12 +255,12 @@
255 255  **Size (bytes)**
256 256  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
257 257  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
258 -[[Distance>>||anchor="H2.3.2A0Distance"]]
212 +[[Distance>>||anchor="H2.3.3A0Distance"]]
259 259  
260 260  (unit: mm)
261 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
262 -[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
263 -)))|[[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]]
264 264  
265 265  [[image:1654850511545-399.png]]
266 266  
... ... @@ -279,13 +279,9 @@
279 279  
280 280  === 2.3.2  Distance ===
281 281  
282 -(((
283 283  Get the distance. Flat object range 280mm - 7500mm.
284 -)))
285 285  
286 -(((
287 287  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.**
288 -)))
289 289  
290 290  
291 291  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
... ... @@ -293,11 +293,9 @@
293 293  
294 294  
295 295  
296 -
297 -
298 298  === 2.3.3  Interrupt Pin ===
299 299  
300 -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.
301 301  
302 302  **Example:**
303 303  
... ... @@ -323,18 +323,14 @@
323 323  
324 324  === 2.3.5  Sensor Flag ===
325 325  
326 -(((
327 327  0x01: Detect Ultrasonic Sensor
328 -)))
329 329  
330 -(((
331 331  0x00: No Ultrasonic Sensor
332 -)))
333 333  
334 334  
279 +===
280 +(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
335 335  
336 -=== 2.3.6  Decode payload in The Things Network ===
337 -
338 338  While using TTN network, you can add the payload format to decode the payload.
339 339  
340 340  
... ... @@ -342,9 +342,7 @@
342 342  
343 343  The payload decoder function for TTN V3 is here:
344 344  
345 -(((
346 346  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/]]
347 -)))
348 348  
349 349  
350 350  
... ... @@ -872,22 +872,13 @@
872 872  
873 873  
874 874  
875 -
876 -
877 877  == 2.8  ​Firmware Change Log ==
878 878  
879 879  
880 -(((
881 881  **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/]]
882 -)))
883 883  
884 -(((
885 -
886 -)))
887 887  
888 -(((
889 889  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
890 -)))
891 891  
892 892  
893 893  
... ... @@ -896,13 +896,11 @@
896 896  
897 897  [[image:image-20220610172003-1.png]]
898 898  
899 -
900 900  [[image:image-20220610172003-2.png]]
901 901  
902 902  
835 +== 2.10  Battery Analysis  ==
903 903  
904 -== 2.10  Battery Analysis ==
905 -
906 906  === 2.10.1  Battery Type ===
907 907  
908 908  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.
... ... @@ -911,7 +911,7 @@
911 911  The battery related documents as below:
912 912  
913 913  * (((
914 -[[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]],
915 915  )))
916 916  * (((
917 917  [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
... ... @@ -927,7 +927,7 @@
927 927  === 2.10.2  Replace the battery ===
928 928  
929 929  (((
930 -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.
931 931  )))
932 932  
933 933  (((
... ... @@ -935,22 +935,22 @@
935 935  )))
936 936  
937 937  (((
938 -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)
939 939  )))
940 940  
941 941  
942 942  
943 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
874 += 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
944 944  
945 945  (((
946 946  (((
947 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
878 +Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
948 948  )))
949 949  )))
950 950  
951 951  * (((
952 952  (((
953 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
884 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
954 954  )))
955 955  )))
956 956  * (((
... ... @@ -965,7 +965,7 @@
965 965  )))
966 966  
967 967  (((
968 -There are two kinds of commands to configure LDDS75, they are:
899 +There are two kinds of commands to configure LLDS12, they are:
969 969  )))
970 970  )))
971 971  
... ... @@ -1006,160 +1006,351 @@
1006 1006  
1007 1007  * (((
1008 1008  (((
1009 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
940 +(% style="color:#4f81bd" %)** Commands special design for LLDS12**
1010 1010  )))
1011 1011  )))
1012 1012  
1013 1013  (((
1014 1014  (((
1015 -These commands only valid for LDDS75, as below:
946 +These commands only valid for LLDS12, as below:
1016 1016  )))
1017 1017  )))
1018 1018  
1019 1019  
1020 1020  
1021 -== 3.1  Access AT Commands ==
952 +== 4.1  Set Transmit Interval Time ==
1022 1022  
1023 -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.
1024 1024  
1025 -[[image:image-20220610172924-4.png||height="483" width="988"]]
956 +(% style="color:#037691" %)**AT Command: AT+TDC**
1026 1026  
958 +[[image:image-20220607171554-8.png]]
1027 1027  
1028 -Or if you have below board, use below connection:
1029 1029  
961 +(((
962 +(% style="color:#037691" %)**Downlink Command: 0x01**
963 +)))
1030 1030  
1031 -[[image:image-20220610172924-5.png]]
965 +(((
966 +Format: Command Code (0x01) followed by 3 bytes time value.
967 +)))
1032 1032  
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 +)))
1033 1033  
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 +
1034 1034  (((
1035 -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**
1036 1036  )))
1037 1037  
993 +(((
994 +Format: Command Code (0x06) followed by 3 bytes.
995 +)))
1038 1038  
1039 - [[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 +)))
1040 1040  
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 +)))
1041 1041  
1008 +== 4.3  Get Firmware Version Info ==
1042 1042  
1043 -== 3.2  Set Transmit Interval Time ==
1010 +Feature: use downlink to get firmware version.
1044 1044  
1045 -Feature: Change LoRaWAN End Node Transmit Interval.
1012 +(% style="color:#037691" %)**Downlink Command: 0x26**
1046 1046  
1047 -(% style="color:#037691" %)**AT Command: AT+TDC**
1014 +[[image:image-20220607171917-10.png]]
1048 1048  
1049 -[[image:image-20220610173409-7.png]]
1016 +* Reply to the confirmation package: 26 01
1017 +* Reply to non-confirmed packet: 26 00
1050 1050  
1019 +Device will send an uplink after got this downlink command. With below payload:
1051 1051  
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 +
1052 1052  (((
1053 -(% 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.
1054 1054  )))
1055 1055  
1056 1056  (((
1057 -(((
1058 -Format: Command Code (0x01) followed by 3 bytes time value.
1099 +The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1100 +)))
1059 1059  
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 +
1060 1060  (((
1061 -If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1114 +Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
1062 1062  )))
1063 1063  
1064 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1065 -* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1117 +(((
1118 +And make sure the positive and negative pins match.
1066 1066  )))
1067 1067  
1068 1068  
1069 -
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.
1070 1070  )))
1071 1071  
1129 +(((
1130 +Instruction to use as below:
1131 +)))
1072 1072  
1073 1073  
1134 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
1074 1074  
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/]]
1075 1075  
1076 -== 3.3  Set Interrupt Mode ==
1077 1077  
1078 -Feature, Set Interrupt mode for GPIO_EXIT.
1139 +**Step 2**: Open it and choose
1079 1079  
1080 -(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1141 +* Product Model
1142 +* Uplink Interval
1143 +* Working Mode
1081 1081  
1082 -[[image:image-20220610174917-9.png]]
1145 +And the Life expectation in difference case will be shown on the right.
1083 1083  
1147 +[[image:1654593605679-189.png]]
1084 1084  
1085 -(% style="color:#037691" %)**Downlink Command: 0x06**
1086 1086  
1087 -Format: Command Code (0x06) followed by 3 bytes.
1150 +The battery related documents as below:
1088 1088  
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 +)))
1161 +
1162 +[[image:image-20220607172042-11.png]]
1163 +
1164 +
1165 +
1166 +=== 5.3.1  ​Battery Note ===
1167 +
1089 1089  (((
1090 -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.
1091 1091  )))
1092 1092  
1093 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1094 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1095 1095  
1096 1096  
1097 -= 4FAQ =
1174 +=== ​5.3.2  Replace the battery ===
1098 1098  
1099 -== 4.1  What is the frequency plan for LDDS75? ==
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 +)))
1100 1100  
1101 -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"]]
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 +)))
1102 1102  
1103 1103  
1104 1104  
1105 -== 4.2  How to change the LoRa Frequency Bands/Region ==
1186 += 6Use AT Command =
1106 1106  
1107 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1108 -When downloading the images, choose the required image file for download. ​
1188 +== 6.1  Access AT Commands ==
1109 1109  
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.
1110 1110  
1192 +[[image:1654593668970-604.png]]
1111 1111  
1112 -== 4.3  Can I use LDDS75 in condensation environment? ==
1194 +**Connection:**
1113 1113  
1114 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1196 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1115 1115  
1198 +(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1116 1116  
1200 +(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1117 1117  
1118 -= 5.  Trouble Shooting =
1119 1119  
1120 -== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
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 +)))
1121 1121  
1122 -It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1208 +(((
1209 +LLDS12 will output system info once power on as below:
1210 +)))
1211 +)))
1123 1123  
1124 1124  
1125 -== 5.2  AT Command input doesn't work ==
1214 + [[image:1654593712276-618.png]]
1126 1126  
1216 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1217 +
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 +(((
1127 1127  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 +)))
1128 1128  
1236 +
1237 +== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1238 +
1239 +
1129 1129  (((
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 +(((
1130 1130  
1131 1131  )))
1132 1132  
1252 +(((
1253 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1254 +)))
1133 1133  
1134 -= 6.  Order Info =
1256 +(((
1257 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1258 +)))
1135 1135  
1136 1136  
1137 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1138 1138  
1262 += 9.  Order Info =
1139 1139  
1140 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1141 1141  
1142 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1143 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1144 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1145 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1146 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1147 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1148 -* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1149 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1265 +Part Number: (% style="color:blue" %)**LLDS12-XX**
1150 1150  
1151 -(% style="color:blue" %)**YY**(%%): Battery Option
1152 1152  
1153 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1154 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1268 +(% style="color:blue" %)**XX**(%%): The default frequency band
1155 1155  
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
1156 1156  
1157 -= 7. ​ Packing Info =
1279 += 10. ​ Packing Info =
1158 1158  
1159 1159  
1160 1160  **Package Includes**:
1161 1161  
1162 -* LDDS75 LoRaWAN Distance Detection Sensor x 1
1284 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1163 1163  
1164 1164  **Dimension and weight**:
1165 1165  
... ... @@ -1168,8 +1168,7 @@
1168 1168  * Package Size / pcs : cm
1169 1169  * Weight / pcs : g
1170 1170  
1293 += 11.  ​Support =
1171 1171  
1172 -= 8.  ​Support =
1173 -
1174 1174  * 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.
1175 1175  * 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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