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]] ... ... @@ -88,8 +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="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. 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 won’t 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 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) 939 939 ))) 940 940 941 941 942 942 943 -= 3. Configure LD DS75via 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 LD DS75via 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="H 4.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 LD DS75, they are:899 +There are two kinds of commands to configure LLDS12, they are: 969 969 ))) 970 970 ))) 971 971 ... ... @@ -1006,156 +1006,351 @@ 1006 1006 1007 1007 * ((( 1008 1008 ((( 1009 -(% style="color:#4f81bd" %)** Commands special design for LD DS75**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 LD DS75, as below:946 +These commands only valid for LLDS12, as below: 1016 1016 ))) 1017 1017 ))) 1018 1018 1019 1019 1020 1020 1021 -== 3.1AccessATCommands ==952 +== 4.1 Set Transmit Interval Time == 1022 1022 1023 - 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. 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**(%%) toaccess the serial console for LDDS75. LDDS75 will output system infoonce power onas 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 SetTransmitIntervalTime==1010 +Feature: use downlink to get firmware version. 1044 1044 1045 - Feature:ChangeLoRaWAN EndNode 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"%)**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. 1054 1054 ))) 1055 1055 1056 1056 ((( 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 + 1057 1057 ((( 1058 -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 +))) 1059 1059 1060 1060 ((( 1061 - If the downlink payload=0100003C,itmeanssettheEND Node’sTransmitIntervalto 0x00003C=60(S), whiletype codeis01.1118 +And make sure the positive and negative pins match. 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 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. 1066 1066 ))) 1067 1067 1129 +((( 1130 +Instruction to use as below: 1131 +))) 1068 1068 1069 - 1133 + 1134 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: 1135 + 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/]] 1137 + 1138 + 1139 +**Step 2**: Open it and choose 1140 + 1141 +* Product Model 1142 +* Uplink Interval 1143 +* Working Mode 1144 + 1145 +And the Life expectation in difference case will be shown on the right. 1146 + 1147 +[[image:1654593605679-189.png]] 1148 + 1149 + 1150 +The battery related documents as below: 1151 + 1152 +* ((( 1153 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]], 1070 1070 ))) 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 +))) 1071 1071 1072 - == 3.3 Set Interrupt Mode ==1162 +[[image:image-20220607172042-11.png]] 1073 1073 1074 -Feature, Set Interrupt mode for GPIO_EXIT. 1075 1075 1076 -(% style="color:#037691" %)**Downlink Command: AT+INTMOD** 1077 1077 1078 - [[image:image-20220610174917-9.png]]1166 +=== 5.3.1 Battery Note === 1079 1079 1168 +((( 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. 1170 +))) 1080 1080 1081 -(% style="color:#037691" %)**Downlink Command: 0x06** 1082 1082 1083 -Format: Command Code (0x06) followed by 3 bytes. 1084 1084 1174 +=== 5.3.2 Replace the battery === 1175 + 1085 1085 ((( 1086 -This means th at the interruptmodeofthe end nodeisset to0x000003=3(risingedge trigger),and the typecode is06.1177 +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. 1087 1087 ))) 1088 1088 1089 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode 1090 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 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 +))) 1091 1091 1092 1092 1093 -= 4. FAQ = 1094 1094 1095 -= =4.1What isthefrequencyplanfor LDDS75?==1186 += 6. Use AT Command = 1096 1096 1097 - LDDS75usethe same frequency as other Dragino products. User cansee the detail from thislink:[[Introduction>>doc:Main.EndDevice Frequency Band.WebHome||anchor="H1.Introduction"]]1188 +== 6.1 Access AT Commands == 1098 1098 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. 1099 1099 1192 +[[image:1654593668970-604.png]] 1100 1100 1101 - == 4.2 How to change the LoRa Frequency Bands/Region==1194 +**Connection:** 1102 1102 1103 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]]. 1104 -When downloading the images, choose the required image file for download. 1196 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND** 1105 1105 1198 +(% style="background-color:yellow" %)** USB TTL TXD <~-~-~-~-> UART_RXD** 1106 1106 1200 +(% style="background-color:yellow" %)** USB TTL RXD <~-~-~-~-> UART_TXD** 1107 1107 1108 -== 4.3 Can I use LDDS75 in condensation environment? == 1109 1109 1110 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0. 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 +))) 1111 1111 1208 +((( 1209 +LLDS12 will output system info once power on as below: 1210 +))) 1211 +))) 1112 1112 1113 1113 1114 - =5.Trouble Shooting=1214 + [[image:1654593712276-618.png]] 1115 1115 1116 - ==5.1WhyIcan’tjoinTTN V3inUS915 /AU915 bands? ==1216 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]]. 1117 1117 1118 -It is due to channel mapping. Please see below link: [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] 1119 1119 1219 += 7. FAQ = 1120 1120 1121 -== 5.2ATCommandinputdoesn'twork==1221 +== 7.1 How to change the LoRa Frequency Bands/Region == 1122 1122 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 +((( 1123 1123 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 +))) 1124 1124 1236 + 1237 +== 8.2 Significant error between the output distant value of LiDAR and actual distance == 1238 + 1239 + 1125 1125 ((( 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 +((( 1126 1126 1127 1127 ))) 1128 1128 1252 +((( 1253 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked. 1254 +))) 1129 1129 1130 -= 6. Order Info = 1256 +((( 1257 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter. 1258 +))) 1131 1131 1132 1132 1133 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY** 1134 1134 1262 += 9. Order Info = 1135 1135 1136 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band 1137 1137 1138 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band 1139 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band 1140 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band 1141 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band 1142 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band 1143 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band 1144 -* (% style="color:red" %)**IN865 **(%%)**:** LoRaWAN IN865 band 1145 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band 1265 +Part Number: (% style="color:blue" %)**LLDS12-XX** 1146 1146 1147 -(% style="color:blue" %)**YY**(%%): Battery Option 1148 1148 1149 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery 1150 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery 1268 +(% style="color:blue" %)**XX**(%%): The default frequency band 1151 1151 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 1153 -= 7. Packing Info =1279 += 10. Packing Info = 1154 1154 1155 1155 1156 1156 **Package Includes**: 1157 1157 1158 -* LD DS75LoRaWAN DistanceDetectionSensor x 11284 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1 1159 1159 1160 1160 **Dimension and weight**: 1161 1161 ... ... @@ -1164,8 +1164,7 @@ 1164 1164 * Package Size / pcs : cm 1165 1165 * Weight / pcs : g 1166 1166 1293 += 11. Support = 1167 1167 1168 -= 8. Support = 1169 - 1170 1170 * 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. 1171 1171 * 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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