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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... ... @@ -3,7 +3,6 @@ 3 3 4 4 **Contents:** 5 5 6 -{{toc/}} 7 7 8 8 9 9 ... ... @@ -11,7 +11,6 @@ 11 11 12 12 13 13 14 - 15 15 = 1. Introduction = 16 16 17 17 == 1.1 What is LoRaWAN Distance Detection Sensor == ... ... @@ -20,51 +20,24 @@ 20 20 21 21 22 22 ((( 23 -((( 24 24 The Dragino LDDS75 is a (% style="color:#4472c4" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:#4472c4" %)** ultrasonic sensing** (%%)technology for distance measurement, and (% style="color:#4472c4" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The LDDS75 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc. 25 -))) 26 26 27 -((( 28 - 29 -))) 30 30 31 -((( 32 32 It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server. 33 -))) 34 34 35 -((( 36 - 37 -))) 38 38 39 -((( 40 40 The LoRa wireless technology used in LDDS75 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. 41 -))) 42 42 43 -((( 44 - 45 -))) 46 46 47 -((( 48 48 LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*. 49 -))) 50 50 51 -((( 52 - 53 -))) 54 54 55 -((( 56 56 Each LDDS75 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on. 57 -))) 58 58 59 -((( 60 - 61 -))) 62 62 63 -((( 64 -(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors. 36 +(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors 65 65 ))) 66 66 ))) 67 -))) 68 68 69 69 70 70 [[image:1654847051249-359.png]] ... ... @@ -88,7 +88,6 @@ 88 88 89 89 90 90 91 - 92 92 == 1.3 Specification == 93 93 94 94 === 1.3.1 Rated environmental conditions === ... ... @@ -95,12 +95,12 @@ 95 95 96 96 [[image:image-20220610154839-1.png]] 97 97 98 -((( 99 -**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing); b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)** 100 -))) 68 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);** 101 101 70 +**b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)** 102 102 103 103 73 + 104 104 === 1.3.2 Effective measurement range Reference beam pattern === 105 105 106 106 **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.** ... ... @@ -110,10 +110,7 @@ 110 110 [[image:1654852253176-749.png]] 111 111 112 112 113 - 114 -((( 115 115 **(2)** **The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.** 116 -))) 117 117 118 118 119 119 [[image:1654852175653-550.png]](% style="display:none" %) ** ** ... ... @@ -134,7 +134,6 @@ 134 134 135 135 136 136 137 - 138 138 == 1.6 Pin mapping and power on == 139 139 140 140 ... ... @@ -181,17 +181,11 @@ 181 181 [[image:image-20220607170145-1.jpeg]] 182 182 183 183 184 -((( 185 185 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI. 186 -))) 187 187 188 -((( 189 189 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot: 190 -))) 191 191 192 -((( 193 193 **Add APP EUI in the application** 194 -))) 195 195 196 196 [[image:image-20220610161353-4.png]] 197 197 ... ... @@ -234,15 +234,11 @@ 234 234 == 2.3 Uplink Payload == 235 235 236 236 ((( 237 -((( 238 238 LDDS75 will uplink payload via LoRaWAN with below payload format: 239 -))) 240 240 241 -((( 242 242 Uplink payload includes in total 4 bytes. 243 243 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance 244 244 ))) 245 -))) 246 246 247 247 ((( 248 248 ... ... @@ -253,12 +253,12 @@ 253 253 **Size (bytes)** 254 254 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1** 255 255 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|((( 256 -[[Distance>>||anchor="H2.3. 2A0Distance"]]212 +[[Distance>>||anchor="H2.3.3A0Distance"]] 257 257 258 258 (unit: mm) 259 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3. 3A0InterruptPin"]]|(((260 -[[Temperature (Optional )>>||anchor="H2.3. 4A0DS18B20Temperaturesensor"]]261 -)))|[[Sensor Flag>> ||anchor="H2.3.5A0SensorFlag"]]215 +)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|((( 216 +[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]] 217 +)))|[[Sensor Flag>>path:#Sensor_Flag]] 262 262 263 263 [[image:1654850511545-399.png]] 264 264 ... ... @@ -277,13 +277,9 @@ 277 277 278 278 === 2.3.2 Distance === 279 279 280 -((( 281 281 Get the distance. Flat object range 280mm - 7500mm. 282 -))) 283 283 284 -((( 285 285 For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.** 286 -))) 287 287 288 288 289 289 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor. ... ... @@ -291,10 +291,9 @@ 291 291 292 292 293 293 294 - 295 295 === 2.3.3 Interrupt Pin === 296 296 297 -This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="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. 298 298 299 299 **Example:** 300 300 ... ... @@ -320,18 +320,14 @@ 320 320 321 321 === 2.3.5 Sensor Flag === 322 322 323 -((( 324 324 0x01: Detect Ultrasonic Sensor 325 -))) 326 326 327 -((( 328 328 0x00: No Ultrasonic Sensor 329 -))) 330 330 331 331 279 +=== 280 +(% style="color:inherit; font-family:inherit" %)2.3.6 Decode payload in The Things Network(%%) === 332 332 333 -=== 2.3.6 Decode payload in The Things Network === 334 - 335 335 While using TTN network, you can add the payload format to decode the payload. 336 336 337 337 ... ... @@ -339,9 +339,7 @@ 339 339 340 340 The payload decoder function for TTN V3 is here: 341 341 342 -((( 343 343 LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]] 344 -))) 345 345 346 346 347 347 ... ... @@ -869,21 +869,13 @@ 869 869 870 870 871 871 872 - 873 873 == 2.8 Firmware Change Log == 874 874 875 875 876 -((( 877 877 **Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]] 878 -))) 879 879 880 -((( 881 - 882 -))) 883 883 884 -((( 885 885 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]] 886 -))) 887 887 888 888 889 889 ... ... @@ -892,13 +892,11 @@ 892 892 893 893 [[image:image-20220610172003-1.png]] 894 894 895 - 896 896 [[image:image-20220610172003-2.png]] 897 897 898 898 835 +== 2.10 Battery Analysis == 899 899 900 -== 2.10 Battery Analysis == 901 - 902 902 === 2.10.1 Battery Type === 903 903 904 904 The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter. ... ... @@ -907,7 +907,7 @@ 907 907 The battery related documents as below: 908 908 909 909 * ((( 910 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]], 845 +[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]], 911 911 ))) 912 912 * ((( 913 913 [[Lithium-Thionyl Chloride Battery datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]], ... ... @@ -923,7 +923,7 @@ 923 923 === 2.10.2 Replace the battery === 924 924 925 925 ((( 926 -You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won 't be voltage drop between battery and main board.861 +You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board. 927 927 ))) 928 928 929 929 ((( ... ... @@ -931,22 +931,22 @@ 931 931 ))) 932 932 933 933 ((( 934 -The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can 't find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)869 +The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user 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) 935 935 ))) 936 936 937 937 938 938 939 -= 3. Configure LD DS75via AT Command or LoRaWAN Downlink =874 += 3. Configure LLDS12 via AT Command or LoRaWAN Downlink = 940 940 941 941 ((( 942 942 ((( 943 -Use can configure LD DS75via AT Command or LoRaWAN Downlink.878 +Use can configure LLDS12 via AT Command or LoRaWAN Downlink. 944 944 ))) 945 945 ))) 946 946 947 947 * ((( 948 948 ((( 949 -AT Command Connection: See [[FAQ>>||anchor="H 4.A0FAQ"]].884 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]]. 950 950 ))) 951 951 ))) 952 952 * ((( ... ... @@ -961,7 +961,7 @@ 961 961 ))) 962 962 963 963 ((( 964 -There are two kinds of commands to configure LD DS75, they are:899 +There are two kinds of commands to configure LLDS12, they are: 965 965 ))) 966 966 ))) 967 967 ... ... @@ -1002,158 +1002,351 @@ 1002 1002 1003 1003 * ((( 1004 1004 ((( 1005 -(% style="color:#4f81bd" %)** Commands special design for LD DS75**940 +(% style="color:#4f81bd" %)** Commands special design for LLDS12** 1006 1006 ))) 1007 1007 ))) 1008 1008 1009 1009 ((( 1010 1010 ((( 1011 -These commands only valid for LD DS75, as below:946 +These commands only valid for LLDS12, as below: 1012 1012 ))) 1013 1013 ))) 1014 1014 1015 1015 1016 1016 1017 -== 3.1AccessATCommands ==952 +== 4.1 Set Transmit Interval Time == 1018 1018 1019 - 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. 1020 1020 1021 - [[image:image-20220610172924-4.png||height="483"width="988"]]956 +(% style="color:#037691" %)**AT Command: AT+TDC** 1022 1022 958 +[[image:image-20220607171554-8.png]] 1023 1023 1024 -Or if you have below board, use below connection: 1025 1025 961 +((( 962 +(% style="color:#037691" %)**Downlink Command: 0x01** 963 +))) 1026 1026 1027 -[[image:image-20220610172924-5.png]] 965 +((( 966 +Format: Command Code (0x01) followed by 3 bytes time value. 967 +))) 1028 1028 969 +((( 970 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01. 971 +))) 1029 1029 973 +* ((( 974 +Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds 975 +))) 976 +* ((( 977 +Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 978 +))) 979 + 980 +== 4.2 Set Interrupt Mode == 981 + 982 +Feature, Set Interrupt mode for GPIO_EXIT. 983 + 984 +(% style="color:#037691" %)**AT Command: AT+INTMOD** 985 + 986 +[[image:image-20220610105806-2.png]] 987 + 988 + 1030 1030 ((( 1031 - In the PC, you need to set the serial baud rate to(% style="color:green" %)**9600**(%%) toaccess the serial console for LDDS75. LDDS75 will output system infoonce power onas below:990 +(% style="color:#037691" %)**Downlink Command: 0x06** 1032 1032 ))) 1033 1033 993 +((( 994 +Format: Command Code (0x06) followed by 3 bytes. 995 +))) 1034 1034 1035 - [[image:image-20220610172924-6.png||height="601" width="860"]] 997 +((( 998 +This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06. 999 +))) 1036 1036 1001 +* ((( 1002 +Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode 1003 +))) 1004 +* ((( 1005 +Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 1006 +))) 1037 1037 1008 +== 4.3 Get Firmware Version Info == 1038 1038 1039 - == 3.2 SetTransmitIntervalTime==1010 +Feature: use downlink to get firmware version. 1040 1040 1041 - Feature:ChangeLoRaWAN EndNode Transmit Interval.1012 +(% style="color:#037691" %)**Downlink Command: 0x26** 1042 1042 1043 - (% style="color:#037691" %)**AT Command: AT+TDC**1014 +[[image:image-20220607171917-10.png]] 1044 1044 1045 -[[image:image-20220610173409-7.png]] 1016 +* Reply to the confirmation package: 26 01 1017 +* Reply to non-confirmed packet: 26 00 1046 1046 1019 +Device will send an uplink after got this downlink command. With below payload: 1047 1047 1021 +Configures info payload: 1022 + 1023 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %) 1024 +|=((( 1025 +**Size(bytes)** 1026 +)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1** 1027 +|**Value**|Software Type|((( 1028 +Frequency 1029 + 1030 +Band 1031 +)))|Sub-band|((( 1032 +Firmware 1033 + 1034 +Version 1035 +)))|Sensor Type|Reserve|((( 1036 +[[Message Type>>||anchor="H2.3.7A0MessageType"]] 1037 +Always 0x02 1038 +))) 1039 + 1040 +**Software Type**: Always 0x03 for LLDS12 1041 + 1042 + 1043 +**Frequency Band**: 1044 + 1045 +*0x01: EU868 1046 + 1047 +*0x02: US915 1048 + 1049 +*0x03: IN865 1050 + 1051 +*0x04: AU915 1052 + 1053 +*0x05: KZ865 1054 + 1055 +*0x06: RU864 1056 + 1057 +*0x07: AS923 1058 + 1059 +*0x08: AS923-1 1060 + 1061 +*0x09: AS923-2 1062 + 1063 +*0xa0: AS923-3 1064 + 1065 + 1066 +**Sub-Band**: value 0x00 ~~ 0x08 1067 + 1068 + 1069 +**Firmware Version**: 0x0100, Means: v1.0.0 version 1070 + 1071 + 1072 +**Sensor Type**: 1073 + 1074 +0x01: LSE01 1075 + 1076 +0x02: LDDS75 1077 + 1078 +0x03: LDDS20 1079 + 1080 +0x04: LLMS01 1081 + 1082 +0x05: LSPH01 1083 + 1084 +0x06: LSNPK01 1085 + 1086 +0x07: LLDS12 1087 + 1088 + 1089 + 1090 += 5. Battery & How to replace = 1091 + 1092 +== 5.1 Battery Type == 1093 + 1048 1048 ((( 1049 - (%style="color:#037691"%)**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. 1050 1050 ))) 1051 1051 1052 1052 ((( 1099 +The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance. 1100 +))) 1101 + 1102 +[[image:1654593587246-335.png]] 1103 + 1104 + 1105 +Minimum Working Voltage for the LLDS12: 1106 + 1107 +LLDS12: 2.45v ~~ 3.6v 1108 + 1109 + 1110 + 1111 +== 5.2 Replace Battery == 1112 + 1053 1053 ((( 1054 -Format: Command Code (0x01) followed by 3 bytes time value. 1114 +Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery. 1115 +))) 1055 1055 1056 1056 ((( 1057 - If the downlink payload=0100003C,itmeanssettheEND Node’sTransmitIntervalto 0x00003C=60(S), whiletype codeis01.1118 +And make sure the positive and negative pins match. 1058 1058 ))) 1059 1059 1060 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds 1061 -* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 1121 + 1122 + 1123 +== 5.3 Power Consumption Analyze == 1124 + 1125 +((( 1126 +Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval. 1062 1062 ))) 1128 + 1129 +((( 1130 +Instruction to use as below: 1063 1063 ))) 1064 1064 1065 1065 1134 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: 1066 1066 1136 +[[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]] 1067 1067 1068 1068 1069 - ==3.3SetInterruptMode==1139 +**Step 2**: Open it and choose 1070 1070 1071 -Feature, Set Interrupt mode for GPIO_EXIT. 1141 +* Product Model 1142 +* Uplink Interval 1143 +* Working Mode 1072 1072 1073 - (%style="color:#037691"%)**DownlinkCommand:AT+INTMOD**1145 +And the Life expectation in difference case will be shown on the right. 1074 1074 1075 -[[image: image-20220610174917-9.png]]1147 +[[image:1654593605679-189.png]] 1076 1076 1077 1077 1078 - (%style="color:#037691"%)**DownlinkCommand:0x06**1150 +The battery related documents as below: 1079 1079 1080 -Format: Command Code (0x06) followed by 3 bytes. 1152 +* ((( 1153 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]], 1154 +))) 1155 +* ((( 1156 +[[Lithium-Thionyl Chloride Battery datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]], 1157 +))) 1158 +* ((( 1159 +[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]] 1160 +))) 1081 1081 1162 +[[image:image-20220607172042-11.png]] 1163 + 1164 + 1165 + 1166 +=== 5.3.1 Battery Note === 1167 + 1082 1082 ((( 1083 -This means that 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. 1084 1084 ))) 1085 1085 1086 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode 1087 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 1088 1088 1089 1089 1174 +=== 5.3.2 Replace the battery === 1090 1090 1176 +((( 1177 +You can change the battery in the LLDS12.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board. 1178 +))) 1091 1091 1092 -= 4. FAQ = 1180 +((( 1181 +The default battery pack of LLDS12 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes) 1182 +))) 1093 1093 1094 -== 4.1 What is the frequency plan for LDDS75? == 1095 1095 1096 -LDDS75 use the same frequency as other Dragino products. User can see the detail from this link: [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]] 1097 1097 1186 += 6. Use AT Command = 1098 1098 1188 +== 6.1 Access AT Commands == 1099 1099 1100 - == 4.2Howtochange theLoRaFrequencyBands/Region==1190 +LLDS12 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LLDS12 for using AT command, as below. 1101 1101 1102 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]]. 1103 -When downloading the images, choose the required image file for download. 1192 +[[image:1654593668970-604.png]] 1104 1104 1194 +**Connection:** 1105 1105 1196 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND** 1106 1106 1107 - ==4.3 Can I useLDDS75 incondensation environment?==1198 +(% style="background-color:yellow" %)** USB TTL TXD <~-~-~-~-> UART_RXD** 1108 1108 1109 - LDDS75isnotsuitabletobe used in condensation environment. Condensationon the LDDS75 probewillaffectthereadingandalwaysgot 0.1200 +(% style="background-color:yellow" %)** USB TTL RXD <~-~-~-~-> UART_TXD** 1110 1110 1111 1111 1203 +((( 1204 +((( 1205 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12. 1206 +))) 1112 1112 1113 -= 5. Trouble Shooting = 1208 +((( 1209 +LLDS12 will output system info once power on as below: 1210 +))) 1211 +))) 1114 1114 1115 -== 5.1 Why I can’t join TTN V3 in US915 / AU915 bands? == 1116 1116 1117 - Itis due to channel mapping. Please see below link:[[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]1214 + [[image:1654593712276-618.png]] 1118 1118 1216 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]]. 1119 1119 1120 -== 5.2 AT Command input doesn't work == 1121 1121 1219 += 7. FAQ = 1220 + 1221 +== 7.1 How to change the LoRa Frequency Bands/Region == 1222 + 1223 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]]. 1224 +When downloading the images, choose the required image file for download. 1225 + 1226 + 1227 += 8. Trouble Shooting = 1228 + 1229 +== 8.1 AT Commands input doesn’t work == 1230 + 1231 + 1232 +((( 1122 1122 In the case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string. 1234 +))) 1123 1123 1236 + 1237 +== 8.2 Significant error between the output distant value of LiDAR and actual distance == 1238 + 1239 + 1124 1124 ((( 1241 +(% style="color:blue" %)**Cause ①**(%%)**:**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance (such as glass and water, etc.) 1242 +))) 1243 + 1244 +((( 1245 +Troubleshooting: Please avoid use of this product under such circumstance in practice. 1246 +))) 1247 + 1248 +((( 1125 1125 1126 1126 ))) 1127 1127 1252 +((( 1253 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked. 1254 +))) 1128 1128 1129 -= 6. Order Info = 1256 +((( 1257 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter. 1258 +))) 1130 1130 1131 1131 1132 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY** 1133 1133 1262 += 9. Order Info = 1134 1134 1135 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band 1136 1136 1137 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band 1138 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band 1139 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band 1140 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band 1141 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band 1142 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band 1143 -* (% style="color:red" %)**IN865 **(%%)**:** LoRaWAN IN865 band 1144 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band 1265 +Part Number: (% style="color:blue" %)**LLDS12-XX** 1145 1145 1146 -(% style="color:blue" %)**YY**(%%): Battery Option 1147 1147 1148 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery 1149 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery 1268 +(% style="color:blue" %)**XX**(%%): The default frequency band 1150 1150 1151 -= 7. Packing Info = 1270 +* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band 1271 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band 1272 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band 1273 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band 1274 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band 1275 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band 1276 +* (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band 1277 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 1152 1152 1279 += 10. Packing Info = 1153 1153 1281 + 1154 1154 **Package Includes**: 1155 1155 1156 -* LD DS75LoRaWAN DistanceDetectionSensor x 11284 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1 1157 1157 1158 1158 **Dimension and weight**: 1159 1159 ... ... @@ -1162,7 +1162,7 @@ 1162 1162 * Package Size / pcs : cm 1163 1163 * Weight / pcs : g 1164 1164 1165 -= 8. Support =1293 += 11. Support = 1166 1166 1167 1167 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule. 1168 1168 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]].
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