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]] ... ... @@ -87,6 +87,7 @@ 87 87 * 4000mAh or 8500mAh Battery for long term use 88 88 89 89 61 + 90 90 == 1.3 Specification == 91 91 92 92 === 1.3.1 Rated environmental conditions === ... ... @@ -93,12 +93,12 @@ 93 93 94 94 [[image:image-20220610154839-1.png]] 95 95 96 -((( 97 -**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)** 98 -))) 68 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);** 99 99 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)** 100 100 101 101 73 + 102 102 === 1.3.2 Effective measurement range Reference beam pattern === 103 103 104 104 **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.** ... ... @@ -108,10 +108,7 @@ 108 108 [[image:1654852253176-749.png]] 109 109 110 110 111 - 112 -((( 113 113 **(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.** 114 -))) 115 115 116 116 117 117 [[image:1654852175653-550.png]](% style="display:none" %) ** ** ... ... @@ -178,17 +178,11 @@ 178 178 [[image:image-20220607170145-1.jpeg]] 179 179 180 180 181 -((( 182 182 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI. 183 -))) 184 184 185 -((( 186 186 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot: 187 -))) 188 188 189 -((( 190 190 **Add APP EUI in the application** 191 -))) 192 192 193 193 [[image:image-20220610161353-4.png]] 194 194 ... ... @@ -231,15 +231,11 @@ 231 231 == 2.3 Uplink Payload == 232 232 233 233 ((( 234 -((( 235 235 LDDS75 will uplink payload via LoRaWAN with below payload format: 236 -))) 237 237 238 -((( 239 239 Uplink payload includes in total 4 bytes. 240 240 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance 241 241 ))) 242 -))) 243 243 244 244 ((( 245 245 ... ... @@ -250,12 +250,12 @@ 250 250 **Size (bytes)** 251 251 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1** 252 252 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|((( 253 -[[Distance>>||anchor="H2.3. 2A0Distance"]]212 +[[Distance>>||anchor="H2.3.3A0Distance"]] 254 254 255 255 (unit: mm) 256 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3. 3A0InterruptPin"]]|(((257 -[[Temperature (Optional )>>||anchor="H2.3. 4A0DS18B20Temperaturesensor"]]258 -)))|[[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]] 259 259 260 260 [[image:1654850511545-399.png]] 261 261 ... ... @@ -274,13 +274,9 @@ 274 274 275 275 === 2.3.2 Distance === 276 276 277 -((( 278 278 Get the distance. Flat object range 280mm - 7500mm. 279 -))) 280 280 281 -((( 282 282 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.** 283 -))) 284 284 285 285 286 286 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor. ... ... @@ -288,10 +288,9 @@ 288 288 289 289 290 290 291 - 292 292 === 2.3.3 Interrupt Pin === 293 293 294 -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. 295 295 296 296 **Example:** 297 297 ... ... @@ -322,9 +322,9 @@ 322 322 0x00: No Ultrasonic Sensor 323 323 324 324 279 +=== 280 +(% style="color:inherit; font-family:inherit" %)2.3.6 Decode payload in The Things Network(%%) === 325 325 326 -=== 2.3.6 Decode payload in The Things Network === 327 - 328 328 While using TTN network, you can add the payload format to decode the payload. 329 329 330 330 ... ... @@ -858,6 +858,8 @@ 858 858 * Solid ON for 5 seconds once device successful Join the network. 859 859 * Blink once when device transmit a packet. 860 860 815 + 816 + 861 861 == 2.8 Firmware Change Log == 862 862 863 863 ... ... @@ -873,13 +873,11 @@ 873 873 874 874 [[image:image-20220610172003-1.png]] 875 875 876 - 877 877 [[image:image-20220610172003-2.png]] 878 878 879 879 835 +== 2.10 Battery Analysis == 880 880 881 -== 2.10 Battery Analysis == 882 - 883 883 === 2.10.1 Battery Type === 884 884 885 885 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. ... ... @@ -888,7 +888,7 @@ 888 888 The battery related documents as below: 889 889 890 890 * ((( 891 -[[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]], 892 892 ))) 893 893 * ((( 894 894 [[Lithium-Thionyl Chloride Battery datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]], ... ... @@ -904,7 +904,7 @@ 904 904 === 2.10.2 Replace the battery === 905 905 906 906 ((( 907 -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. 908 908 ))) 909 909 910 910 ((( ... ... @@ -912,22 +912,22 @@ 912 912 ))) 913 913 914 914 ((( 915 -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) 916 916 ))) 917 917 918 918 919 919 920 -= 3. Configure LD DS75via AT Command or LoRaWAN Downlink =874 += 3. Configure LLDS12 via AT Command or LoRaWAN Downlink = 921 921 922 922 ((( 923 923 ((( 924 -Use can configure LD DS75via AT Command or LoRaWAN Downlink.878 +Use can configure LLDS12 via AT Command or LoRaWAN Downlink. 925 925 ))) 926 926 ))) 927 927 928 928 * ((( 929 929 ((( 930 -AT Command Connection: See [[FAQ>>||anchor="H 4.A0FAQ"]].884 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]]. 931 931 ))) 932 932 ))) 933 933 * ((( ... ... @@ -942,7 +942,7 @@ 942 942 ))) 943 943 944 944 ((( 945 -There are two kinds of commands to configure LD DS75, they are:899 +There are two kinds of commands to configure LLDS12, they are: 946 946 ))) 947 947 ))) 948 948 ... ... @@ -983,148 +983,351 @@ 983 983 984 984 * ((( 985 985 ((( 986 -(% style="color:#4f81bd" %)** Commands special design for LD DS75**940 +(% style="color:#4f81bd" %)** Commands special design for LLDS12** 987 987 ))) 988 988 ))) 989 989 990 990 ((( 991 991 ((( 992 -These commands only valid for LD DS75, as below:946 +These commands only valid for LLDS12, as below: 993 993 ))) 994 994 ))) 995 995 996 996 997 997 998 -== 3.1AccessATCommands ==952 +== 4.1 Set Transmit Interval Time == 999 999 1000 - 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. 1001 1001 1002 - [[image:image-20220610172924-4.png||height="483"width="988"]]956 +(% style="color:#037691" %)**AT Command: AT+TDC** 1003 1003 958 +[[image:image-20220607171554-8.png]] 1004 1004 1005 -Or if you have below board, use below connection: 1006 1006 961 +((( 962 +(% style="color:#037691" %)**Downlink Command: 0x01** 963 +))) 1007 1007 1008 -[[image:image-20220610172924-5.png]] 965 +((( 966 +Format: Command Code (0x01) followed by 3 bytes time value. 967 +))) 1009 1009 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 +))) 1010 1010 1011 -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: 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 +))) 1012 1012 980 +== 4.2 Set Interrupt Mode == 1013 1013 1014 - [[image:image-20220610172924-6.png||height="601"width="860"]]982 +Feature, Set Interrupt mode for GPIO_EXIT. 1015 1015 984 +(% style="color:#037691" %)**AT Command: AT+INTMOD** 1016 1016 986 +[[image:image-20220610105806-2.png]] 1017 1017 1018 -== 3.2 Set Transmit Interval Time == 1019 1019 1020 -Feature: Change LoRaWAN End Node Transmit Interval. 989 +((( 990 +(% style="color:#037691" %)**Downlink Command: 0x06** 991 +))) 1021 1021 1022 -(% style="color:#037691" %)**AT Command: AT+TDC** 993 +((( 994 +Format: Command Code (0x06) followed by 3 bytes. 995 +))) 1023 1023 1024 -[[image:image-20220610173409-7.png]] 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 +))) 1025 1025 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 +))) 1026 1026 1008 +== 4.3 Get Firmware Version Info == 1009 + 1010 +Feature: use downlink to get firmware version. 1011 + 1012 +(% style="color:#037691" %)**Downlink Command: 0x26** 1013 + 1014 +[[image:image-20220607171917-10.png]] 1015 + 1016 +* Reply to the confirmation package: 26 01 1017 +* Reply to non-confirmed packet: 26 00 1018 + 1019 +Device will send an uplink after got this downlink command. With below payload: 1020 + 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 + 1027 1027 ((( 1028 - (%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. 1029 1029 ))) 1030 1030 1031 1031 ((( 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 + 1032 1032 ((( 1033 -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 +))) 1034 1034 1035 -If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01. 1117 +((( 1118 +And make sure the positive and negative pins match. 1119 +))) 1036 1036 1037 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds 1038 -* 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. 1039 1039 ))) 1040 1040 1129 +((( 1130 +Instruction to use as below: 1131 +))) 1041 1041 1042 - 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]], 1043 1043 ))) 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 +))) 1044 1044 1045 - == 3.3 Set Interrupt Mode ==1162 +[[image:image-20220607172042-11.png]] 1046 1046 1047 -Feature, Set Interrupt mode for GPIO_EXIT. 1048 1048 1049 -(% style="color:#037691" %)**Downlink Command: AT+INTMOD** 1050 1050 1051 - [[image:image-20220610174917-9.png]]1166 +=== 5.3.1 Battery Note === 1052 1052 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 +))) 1053 1053 1054 -(% style="color:#037691" %)**Downlink Command: 0x06** 1055 1055 1056 -Format: Command Code (0x06) followed by 3 bytes. 1057 1057 1058 - Thismeansthat theinterrupt modeoftheend node is seto 0x000003=3 (risingedge trigger), and the typecode is 06.1174 +=== 5.3.2 Replace the battery === 1059 1059 1060 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode 1061 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 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 +))) 1062 1062 1063 -= 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 +))) 1064 1064 1065 -== 4.1 What is the frequency plan for LDDS75? == 1066 1066 1067 -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"]] 1068 1068 1186 += 6. Use AT Command = 1069 1069 1188 +== 6.1 Access AT Commands == 1070 1070 1071 - == 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. 1072 1072 1073 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]]. 1074 -When downloading the images, choose the required image file for download. 1192 +[[image:1654593668970-604.png]] 1075 1075 1194 +**Connection:** 1076 1076 1196 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND** 1077 1077 1078 - ==4.3 Can I useLDDS75 incondensation environment?==1198 +(% style="background-color:yellow" %)** USB TTL TXD <~-~-~-~-> UART_RXD** 1079 1079 1080 - LDDS75isnotsuitabletobe used in condensation environment. Condensationon the LDDS75 probewillaffectthereadingandalwaysgot 0.1200 +(% style="background-color:yellow" %)** USB TTL RXD <~-~-~-~-> UART_TXD** 1081 1081 1082 1082 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 +))) 1083 1083 1084 -= 5. Trouble Shooting = 1208 +((( 1209 +LLDS12 will output system info once power on as below: 1210 +))) 1211 +))) 1085 1085 1086 -== 5.1 Why I can’t join TTN V3 in US915 / AU915 bands? == 1087 1087 1088 - 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]] 1089 1089 1216 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]]. 1090 1090 1091 -== 5.2 AT Command input doesn't work == 1092 1092 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 +((( 1093 1093 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 +))) 1094 1094 1236 + 1237 +== 8.2 Significant error between the output distant value of LiDAR and actual distance == 1238 + 1239 + 1095 1095 ((( 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 +((( 1096 1096 1097 1097 ))) 1098 1098 1252 +((( 1253 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked. 1254 +))) 1099 1099 1100 -= 6. Order Info = 1256 +((( 1257 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter. 1258 +))) 1101 1101 1102 1102 1103 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY** 1104 1104 1262 += 9. Order Info = 1105 1105 1106 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band 1107 1107 1108 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band 1109 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band 1110 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band 1111 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band 1112 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band 1113 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band 1114 -* (% style="color:red" %)**IN865 **(%%)**:** LoRaWAN IN865 band 1115 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band 1265 +Part Number: (% style="color:blue" %)**LLDS12-XX** 1116 1116 1117 -(% style="color:blue" %)**YY**(%%): Battery Option 1118 1118 1119 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery 1120 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery 1268 +(% style="color:blue" %)**XX**(%%): The default frequency band 1121 1121 1122 -= 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 1123 1123 1279 += 10. Packing Info = 1124 1124 1281 + 1125 1125 **Package Includes**: 1126 1126 1127 -* LD DS75LoRaWAN DistanceDetectionSensor x 11284 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1 1128 1128 1129 1129 **Dimension and weight**: 1130 1130 ... ... @@ -1133,7 +1133,7 @@ 1133 1133 * Package Size / pcs : cm 1134 1134 * Weight / pcs : g 1135 1135 1136 -= 8. Support =1293 += 11. Support = 1137 1137 1138 1138 * 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. 1139 1139 * 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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