Changes for page LMDS200 -- LoRaWAN Microwave Radar Distance Sensor User Manual
Last modified by Xiaoling on 2025/04/27 16:45
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... ... @@ -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]] ... ... @@ -78,11 +78,9 @@ 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); ** 68 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);** 83 83 84 -**~ 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 -))) 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)** 86 86 87 87 88 88 ... ... @@ -95,10 +95,7 @@ 95 95 [[image:1654852253176-749.png]] 96 96 97 97 98 - 99 -((( 100 100 **(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.** 101 -))) 102 102 103 103 104 104 [[image:1654852175653-550.png]](% style="display:none" %) ** ** ... ... @@ -155,8 +155,6 @@ 155 155 ))) 156 156 157 157 ((( 158 - 159 - 160 160 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75. 161 161 ))) 162 162 ... ... @@ -167,19 +167,11 @@ 167 167 [[image:image-20220607170145-1.jpeg]] 168 168 169 169 170 -((( 171 171 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI. 172 -))) 173 173 174 -((( 175 175 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot: 176 -))) 177 177 178 -((( 179 - 180 - 181 181 **Add APP EUI in the application** 182 -))) 183 183 184 184 [[image:image-20220610161353-4.png]] 185 185 ... ... @@ -222,15 +222,11 @@ 222 222 == 2.3 Uplink Payload == 223 223 224 224 ((( 225 -((( 226 226 LDDS75 will uplink payload via LoRaWAN with below payload format: 227 -))) 228 228 229 -((( 230 230 Uplink payload includes in total 4 bytes. 231 231 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance 232 232 ))) 233 -))) 234 234 235 235 ((( 236 236 ... ... @@ -241,12 +241,12 @@ 241 241 **Size (bytes)** 242 242 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1** 243 243 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|((( 244 -[[Distance>>||anchor="H2.3. 2A0Distance"]]212 +[[Distance>>||anchor="H2.3.3A0Distance"]] 245 245 246 246 (unit: mm) 247 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3. 3A0InterruptPin"]]|(((248 -[[Temperature (Optional )>>||anchor="H2.3. 4A0DS18B20Temperaturesensor"]]249 -)))|[[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]] 250 250 251 251 [[image:1654850511545-399.png]] 252 252 ... ... @@ -265,13 +265,9 @@ 265 265 266 266 === 2.3.2 Distance === 267 267 268 -((( 269 269 Get the distance. Flat object range 280mm - 7500mm. 270 -))) 271 271 272 -((( 273 273 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.** 274 -))) 275 275 276 276 277 277 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor. ... ... @@ -281,7 +281,7 @@ 281 281 282 282 === 2.3.3 Interrupt Pin === 283 283 284 -This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H 3.3A0SetInterruptMode"]] 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. 285 285 286 286 **Example:** 287 287 ... ... @@ -307,18 +307,14 @@ 307 307 308 308 === 2.3.5 Sensor Flag === 309 309 310 -((( 311 311 0x01: Detect Ultrasonic Sensor 312 -))) 313 313 314 -((( 315 315 0x00: No Ultrasonic Sensor 316 -))) 317 317 318 318 279 +=== 280 +(% style="color:inherit; font-family:inherit" %)2.3.6 Decode payload in The Things Network(%%) === 319 319 320 -=== 2.3.6 Decode payload in The Things Network === 321 - 322 322 While using TTN network, you can add the payload format to decode the payload. 323 323 324 324 ... ... @@ -326,9 +326,7 @@ 326 326 327 327 The payload decoder function for TTN V3 is here: 328 328 329 -((( 330 330 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/]] 331 -))) 332 332 333 333 334 334 ... ... @@ -859,17 +859,10 @@ 859 859 == 2.8 Firmware Change Log == 860 860 861 861 862 -((( 863 863 **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/]] 864 -))) 865 865 866 -((( 867 - 868 -))) 869 869 870 -((( 871 871 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]] 872 -))) 873 873 874 874 875 875 ... ... @@ -878,13 +878,11 @@ 878 878 879 879 [[image:image-20220610172003-1.png]] 880 880 881 - 882 882 [[image:image-20220610172003-2.png]] 883 883 884 884 835 +== 2.10 Battery Analysis == 885 885 886 -== 2.10 Battery Analysis == 887 - 888 888 === 2.10.1 Battery Type === 889 889 890 890 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. ... ... @@ -893,7 +893,7 @@ 893 893 The battery related documents as below: 894 894 895 895 * ((( 896 -[[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]], 897 897 ))) 898 898 * ((( 899 899 [[Lithium-Thionyl Chloride Battery datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]], ... ... @@ -909,7 +909,7 @@ 909 909 === 2.10.2 Replace the battery === 910 910 911 911 ((( 912 -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 won’t be voltage drop between battery and main board. 913 913 ))) 914 914 915 915 ((( ... ... @@ -917,22 +917,22 @@ 917 917 ))) 918 918 919 919 ((( 920 -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 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) 921 921 ))) 922 922 923 923 924 924 925 -= 3. Configure LD DS75via AT Command or LoRaWAN Downlink =874 += 3. Configure LLDS12 via AT Command or LoRaWAN Downlink = 926 926 927 927 ((( 928 928 ((( 929 -Use can configure LD DS75via AT Command or LoRaWAN Downlink.878 +Use can configure LLDS12 via AT Command or LoRaWAN Downlink. 930 930 ))) 931 931 ))) 932 932 933 933 * ((( 934 934 ((( 935 -AT Command Connection: See [[FAQ>>||anchor="H 4.A0FAQ"]].884 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]]. 936 936 ))) 937 937 ))) 938 938 * ((( ... ... @@ -947,7 +947,7 @@ 947 947 ))) 948 948 949 949 ((( 950 -There are two kinds of commands to configure LD DS75, they are:899 +There are two kinds of commands to configure LLDS12, they are: 951 951 ))) 952 952 ))) 953 953 ... ... @@ -988,159 +988,351 @@ 988 988 989 989 * ((( 990 990 ((( 991 -(% style="color:#4f81bd" %)** Commands special design for LD DS75**940 +(% style="color:#4f81bd" %)** Commands special design for LLDS12** 992 992 ))) 993 993 ))) 994 994 995 995 ((( 996 996 ((( 997 -These commands only valid for LD DS75, as below:946 +These commands only valid for LLDS12, as below: 998 998 ))) 999 999 ))) 1000 1000 1001 1001 1002 1002 1003 -== 3.1AccessATCommands ==952 +== 4.1 Set Transmit Interval Time == 1004 1004 1005 - LDDS75 supportsATCommand setin the stock firmware.You canuse a USB toTTL adapterto connect to LDDS75 for using ATcommand, asbelow.954 +Feature: Change LoRaWAN End Node Transmit Interval. 1006 1006 1007 - [[image:image-20220610172924-4.png||height="483"width="988"]]956 +(% style="color:#037691" %)**AT Command: AT+TDC** 1008 1008 958 +[[image:image-20220607171554-8.png]] 1009 1009 1010 -Or if you have below board, use below connection: 1011 1011 961 +((( 962 +(% style="color:#037691" %)**Downlink Command: 0x01** 963 +))) 1012 1012 1013 -[[image:image-20220610172924-5.png]] 965 +((( 966 +Format: Command Code (0x01) followed by 3 bytes time value. 967 +))) 1014 1014 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 +))) 1015 1015 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 + 1016 1016 ((( 1017 - In the PC, you need to set the serial baud rate to(% style="color:green" %)**9600**(%%) toaccess the serial console for LDDS75. LDDS75 will output system infoonce power onas below:990 +(% style="color:#037691" %)**Downlink Command: 0x06** 1018 1018 ))) 1019 1019 993 +((( 994 +Format: Command Code (0x06) followed by 3 bytes. 995 +))) 1020 1020 1021 - [[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 +))) 1022 1022 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 +))) 1023 1023 1008 +== 4.3 Get Firmware Version Info == 1024 1024 1025 - == 3.2 SetTransmitIntervalTime==1010 +Feature: use downlink to get firmware version. 1026 1026 1027 - Feature:ChangeLoRaWAN EndNode Transmit Interval.1012 +(% style="color:#037691" %)**Downlink Command: 0x26** 1028 1028 1029 - (% style="color:#037691" %)**AT Command: AT+TDC**1014 +[[image:image-20220607171917-10.png]] 1030 1030 1031 -[[image:image-20220610173409-7.png]] 1016 +* Reply to the confirmation package: 26 01 1017 +* Reply to non-confirmed packet: 26 00 1032 1032 1019 +Device will send an uplink after got this downlink command. With below payload: 1033 1033 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 + 1034 1034 ((( 1035 - (%style="color:#037691"%)**DownlinkCommand: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. 1036 1036 ))) 1037 1037 1038 1038 ((( 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 + 1039 1039 ((( 1040 -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 +))) 1041 1041 1042 1042 ((( 1043 - If the downlink payload=0100003C,itmeanssettheEND Node’sTransmitIntervalto 0x00003C=60(S), whiletype codeis01.1118 +And make sure the positive and negative pins match. 1044 1044 ))) 1045 1045 1046 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds 1047 -* 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. 1048 1048 ))) 1128 + 1129 +((( 1130 +Instruction to use as below: 1049 1049 ))) 1050 1050 1051 1051 1134 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: 1052 1052 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/]] 1053 1053 1054 1054 1055 - ==3.3SetInterruptMode==1139 +**Step 2**: Open it and choose 1056 1056 1057 -Feature, Set Interrupt mode for GPIO_EXIT. 1141 +* Product Model 1142 +* Uplink Interval 1143 +* Working Mode 1058 1058 1059 - (%style="color:#037691"%)**DownlinkCommand:AT+INTMOD**1145 +And the Life expectation in difference case will be shown on the right. 1060 1060 1061 -[[image: image-20220610174917-9.png]]1147 +[[image:1654593605679-189.png]] 1062 1062 1063 1063 1064 - (%style="color:#037691"%)**DownlinkCommand:0x06**1150 +The battery related documents as below: 1065 1065 1066 -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 +))) 1067 1067 1162 +[[image:image-20220607172042-11.png]] 1163 + 1164 + 1165 + 1166 +=== 5.3.1 Battery Note === 1167 + 1068 1068 ((( 1069 -This means that theinterruptmodeofthe end nodeissetto0x000003=3(risingedgetrigger),andthe typecodeis06.1169 +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. 1070 1070 ))) 1071 1071 1072 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode 1073 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 1074 1074 1075 1075 1174 +=== 5.3.2 Replace the battery === 1076 1076 1077 -= 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 +))) 1078 1078 1079 -== 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 +))) 1080 1080 1081 -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"]] 1082 1082 1083 1083 1186 += 6. Use AT Command = 1084 1084 1085 -== 4.2How tochangetheLoRaFrequency Bands/Region==1188 +== 6.1 Access AT Commands == 1086 1086 1087 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]]. 1088 -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. 1089 1089 1192 +[[image:1654593668970-604.png]] 1090 1090 1194 +**Connection:** 1091 1091 1092 - ==4.3 Can I useLDDS75 incondensation environment?==1196 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND** 1093 1093 1094 - LDDS75isnotsuitabletobe used in condensation environment. Condensationon the LDDS75 probewillaffectthereadingandalwaysgot 0.1198 +(% style="background-color:yellow" %)** USB TTL TXD <~-~-~-~-> UART_RXD** 1095 1095 1200 +(% style="background-color:yellow" %)** USB TTL RXD <~-~-~-~-> UART_TXD** 1096 1096 1097 1097 1098 -= 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 +))) 1099 1099 1100 -== 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 +))) 1101 1101 1102 -It is due to channel mapping. Please see below link: [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] 1103 1103 1214 + [[image:1654593712276-618.png]] 1104 1104 1105 - ==5.2AT Commandinputdoesn't work==1216 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]]. 1106 1106 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 +((( 1107 1107 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 +))) 1108 1108 1236 + 1237 +== 8.2 Significant error between the output distant value of LiDAR and actual distance == 1238 + 1239 + 1109 1109 ((( 1110 - 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.) 1111 1111 ))) 1112 1112 1244 +((( 1245 +Troubleshooting: Please avoid use of this product under such circumstance in practice. 1246 +))) 1113 1113 1114 -= 6. Order Info = 1248 +((( 1249 + 1250 +))) 1115 1115 1252 +((( 1253 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked. 1254 +))) 1116 1116 1117 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY** 1256 +((( 1257 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter. 1258 +))) 1118 1118 1119 1119 1120 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band 1121 1121 1122 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band 1123 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band 1124 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band 1125 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band 1126 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band 1127 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band 1128 -* (% style="color:red" %)**IN865 **(%%)**:** LoRaWAN IN865 band 1129 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band 1262 += 9. Order Info = 1130 1130 1131 -(% style="color:blue" %)**YY**(%%): Battery Option 1132 1132 1133 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery 1134 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery 1265 +Part Number: (% style="color:blue" %)**LLDS12-XX** 1135 1135 1136 1136 1268 +(% style="color:blue" %)**XX**(%%): The default frequency band 1137 1137 1138 -= 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 1139 1139 1279 += 10. Packing Info = 1140 1140 1281 + 1141 1141 **Package Includes**: 1142 1142 1143 -* LD DS75LoRaWAN DistanceDetectionSensor x 11284 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1 1144 1144 1145 1145 **Dimension and weight**: 1146 1146 ... ... @@ -1149,9 +1149,7 @@ 1149 1149 * Package Size / pcs : cm 1150 1150 * Weight / pcs : g 1151 1151 1293 += 11. Support = 1152 1152 1153 - 1154 -= 8. Support = 1155 - 1156 1156 * 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. 1157 1157 * 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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