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]] ... ... @@ -86,6 +86,7 @@ 86 86 * IP66 Waterproof Enclosure 87 87 * 4000mAh or 8500mAh Battery for long term use 88 88 60 + 89 89 == 1.3 Specification == 90 90 91 91 === 1.3.1 Rated environmental conditions === ... ... @@ -92,12 +92,12 @@ 92 92 93 93 [[image:image-20220610154839-1.png]] 94 94 95 -((( 96 -**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)** 97 -))) 67 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);** 98 98 69 +**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)** 99 99 100 100 72 + 101 101 === 1.3.2 Effective measurement range Reference beam pattern === 102 102 103 103 **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.** ... ... @@ -107,10 +107,7 @@ 107 107 [[image:1654852253176-749.png]] 108 108 109 109 110 - 111 -((( 112 112 **(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.** 113 -))) 114 114 115 115 116 116 [[image:1654852175653-550.png]](% style="display:none" %) ** ** ... ... @@ -129,6 +129,7 @@ 129 129 * Sewer 130 130 * Bottom water level monitoring 131 131 101 + 132 132 == 1.6 Pin mapping and power on == 133 133 134 134 ... ... @@ -175,17 +175,11 @@ 175 175 [[image:image-20220607170145-1.jpeg]] 176 176 177 177 178 -((( 179 179 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI. 180 -))) 181 181 182 -((( 183 183 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot: 184 -))) 185 185 186 -((( 187 187 **Add APP EUI in the application** 188 -))) 189 189 190 190 [[image:image-20220610161353-4.png]] 191 191 ... ... @@ -228,15 +228,11 @@ 228 228 == 2.3 Uplink Payload == 229 229 230 230 ((( 231 -((( 232 232 LDDS75 will uplink payload via LoRaWAN with below payload format: 233 -))) 234 234 235 -((( 236 236 Uplink payload includes in total 4 bytes. 237 237 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance 238 238 ))) 239 -))) 240 240 241 241 ((( 242 242 ... ... @@ -247,12 +247,12 @@ 247 247 **Size (bytes)** 248 248 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1** 249 249 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|((( 250 -[[Distance>>||anchor="H2.3. 2A0Distance"]]210 +[[Distance>>||anchor="H2.3.3A0Distance"]] 251 251 252 252 (unit: mm) 253 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3. 3A0InterruptPin"]]|(((254 -[[Temperature (Optional )>>||anchor="H2.3. 4A0DS18B20Temperaturesensor"]]255 -)))|[[Sensor Flag>> ||anchor="H2.3.5A0SensorFlag"]]213 +)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|((( 214 +[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]] 215 +)))|[[Sensor Flag>>path:#Sensor_Flag]] 256 256 257 257 [[image:1654850511545-399.png]] 258 258 ... ... @@ -271,13 +271,9 @@ 271 271 272 272 === 2.3.2 Distance === 273 273 274 -((( 275 275 Get the distance. Flat object range 280mm - 7500mm. 276 -))) 277 277 278 -((( 279 279 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.** 280 -))) 281 281 282 282 283 283 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor. ... ... @@ -286,7 +286,7 @@ 286 286 287 287 === 2.3.3 Interrupt Pin === 288 288 289 -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.245 +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. 290 290 291 291 **Example:** 292 292 ... ... @@ -312,18 +312,14 @@ 312 312 313 313 === 2.3.5 Sensor Flag === 314 314 315 -((( 316 316 0x01: Detect Ultrasonic Sensor 317 -))) 318 318 319 -((( 320 320 0x00: No Ultrasonic Sensor 321 -))) 322 322 323 323 276 +=== 277 +(% style="color:inherit; font-family:inherit" %)2.3.6 Decode payload in The Things Network(%%) === 324 324 325 -=== 2.3.6 Decode payload in The Things Network === 326 - 327 327 While using TTN network, you can add the payload format to decode the payload. 328 328 329 329 ... ... @@ -331,9 +331,7 @@ 331 331 332 332 The payload decoder function for TTN V3 is here: 333 333 334 -((( 335 335 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/]] 336 -))) 337 337 338 338 339 339 ... ... @@ -860,21 +860,13 @@ 860 860 * Blink once when device transmit a packet. 861 861 862 862 863 - 864 864 == 2.8 Firmware Change Log == 865 865 866 866 867 -((( 868 868 **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/]] 869 -))) 870 870 871 -((( 872 - 873 -))) 874 874 875 -((( 876 876 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]] 877 -))) 878 878 879 879 880 880 ... ... @@ -883,13 +883,11 @@ 883 883 884 884 [[image:image-20220610172003-1.png]] 885 885 886 - 887 887 [[image:image-20220610172003-2.png]] 888 888 889 889 831 +== 2.10 Battery Analysis == 890 890 891 -== 2.10 Battery Analysis == 892 - 893 893 === 2.10.1 Battery Type === 894 894 895 895 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. ... ... @@ -898,7 +898,7 @@ 898 898 The battery related documents as below: 899 899 900 900 * ((( 901 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]], 841 +[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]], 902 902 ))) 903 903 * ((( 904 904 [[Lithium-Thionyl Chloride Battery datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]], ... ... @@ -914,7 +914,7 @@ 914 914 === 2.10.2 Replace the battery === 915 915 916 916 ((( 917 -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.857 +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. 918 918 ))) 919 919 920 920 ((( ... ... @@ -922,12 +922,12 @@ 922 922 ))) 923 923 924 924 ((( 925 -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)865 +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) 926 926 ))) 927 927 928 928 929 929 930 -= 3. Configure LD DS75via AT Command or LoRaWAN Downlink =870 += 3. Configure LLDS12 via AT Command or LoRaWAN Downlink = 931 931 932 932 ((( 933 933 ((( ... ... @@ -937,7 +937,7 @@ 937 937 938 938 * ((( 939 939 ((( 940 -AT Command Connection: See [[FAQ>>||anchor="H 4.A0FAQ"]].880 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]]. 941 941 ))) 942 942 ))) 943 943 * ((( ... ... @@ -1018,9 +1018,7 @@ 1018 1018 [[image:image-20220610172924-5.png]] 1019 1019 1020 1020 1021 -((( 1022 1022 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: 1023 -))) 1024 1024 1025 1025 1026 1026 [[image:image-20220610172924-6.png||height="601" width="860"]] ... ... @@ -1036,109 +1036,304 @@ 1036 1036 [[image:image-20220610173409-7.png]] 1037 1037 1038 1038 977 + 978 + 1039 1039 ((( 1040 -(% style="color:#037691" %)**Downlink Command: 0x0 1**980 +(% style="color:#037691" %)**Downlink Command: 0x06** 1041 1041 ))) 1042 1042 1043 1043 ((( 984 +Format: Command Code (0x06) followed by 3 bytes. 985 +))) 986 + 1044 1044 ((( 1045 -Format: Command Code (0x01) followed by 3 bytes time value. 988 +This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06. 989 +))) 1046 1046 991 +* ((( 992 +Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode 993 +))) 994 +* ((( 995 +Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 996 +))) 997 + 998 +== 3.3 Get Firmware Version Info == 999 + 1000 +Feature: use downlink to get firmware version. 1001 + 1002 +(% style="color:#037691" %)**Downlink Command: 0x26** 1003 + 1004 +[[image:image-20220607171917-10.png]] 1005 + 1006 +* Reply to the confirmation package: 26 01 1007 +* Reply to non-confirmed packet: 26 00 1008 + 1009 +Device will send an uplink after got this downlink command. With below payload: 1010 + 1011 +Configures info payload: 1012 + 1013 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %) 1014 +|=((( 1015 +**Size(bytes)** 1016 +)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1** 1017 +|**Value**|Software Type|((( 1018 +Frequency 1019 + 1020 +Band 1021 +)))|Sub-band|((( 1022 +Firmware 1023 + 1024 +Version 1025 +)))|Sensor Type|Reserve|((( 1026 +[[Message Type>>||anchor="H2.3.7A0MessageType"]] 1027 +Always 0x02 1028 +))) 1029 + 1030 +**Software Type**: Always 0x03 for LLDS12 1031 + 1032 + 1033 +**Frequency Band**: 1034 + 1035 +*0x01: EU868 1036 + 1037 +*0x02: US915 1038 + 1039 +*0x03: IN865 1040 + 1041 +*0x04: AU915 1042 + 1043 +*0x05: KZ865 1044 + 1045 +*0x06: RU864 1046 + 1047 +*0x07: AS923 1048 + 1049 +*0x08: AS923-1 1050 + 1051 +*0x09: AS923-2 1052 + 1053 +*0xa0: AS923-3 1054 + 1055 + 1056 +**Sub-Band**: value 0x00 ~~ 0x08 1057 + 1058 + 1059 +**Firmware Version**: 0x0100, Means: v1.0.0 version 1060 + 1061 + 1062 +**Sensor Type**: 1063 + 1064 +0x01: LSE01 1065 + 1066 +0x02: LDDS75 1067 + 1068 +0x03: LDDS20 1069 + 1070 +0x04: LLMS01 1071 + 1072 +0x05: LSPH01 1073 + 1074 +0x06: LSNPK01 1075 + 1076 +0x07: LLDS12 1077 + 1078 + 1079 + 1080 += 5. Battery & How to replace = 1081 + 1082 +== 5.1 Battery Type == 1083 + 1047 1047 ((( 1048 - Ifthedownlinkpayload=0100003C,itmeansheNDNode’sTransmitIntervalto 0x00003C=60(S),whiletype code is01.1085 +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. 1049 1049 ))) 1050 1050 1051 - * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval(TDC) = 30 seconds1052 - *Example2:Downlink Payload: 0100003C ~/~/SetTransmitInterval(TDC)=60seconds1088 +((( 1089 +The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance. 1053 1053 ))) 1054 1054 1092 +[[image:1654593587246-335.png]] 1055 1055 1056 - 1094 + 1095 +Minimum Working Voltage for the LLDS12: 1096 + 1097 +LLDS12: 2.45v ~~ 3.6v 1098 + 1099 + 1100 + 1101 +== 5.2 Replace Battery == 1102 + 1103 +((( 1104 +Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery. 1057 1057 ))) 1058 1058 1059 -== 3.3 Set Interrupt Mode == 1107 +((( 1108 +And make sure the positive and negative pins match. 1109 +))) 1060 1060 1061 -Feature, Set Interrupt mode for GPIO_EXIT. 1062 1062 1063 -(% style="color:#037691" %)**Downlink Command: AT+INTMOD** 1064 1064 1065 - [[image:image-20220610174917-9.png]]1113 +== 5.3 Power Consumption Analyze == 1066 1066 1115 +((( 1116 +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. 1117 +))) 1067 1067 1068 -(% style="color:#037691" %)**Downlink Command: 0x06** 1119 +((( 1120 +Instruction to use as below: 1121 +))) 1069 1069 1070 -Format: Command Code (0x06) followed by 3 bytes. 1071 1071 1072 - This meansthat the interruptmode oftheend node is seto 0x000003=3 (risingedge trigger), and thetypecodeis06.1124 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: 1073 1073 1074 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode 1075 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 1126 +[[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/]] 1076 1076 1077 -= 4. FAQ = 1078 1078 1079 - == 4.1 Whatisthefrequencyplanfor LDDS75? ==1129 +**Step 2**: Open it and choose 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"]] 1131 +* Product Model 1132 +* Uplink Interval 1133 +* Working Mode 1082 1082 1135 +And the Life expectation in difference case will be shown on the right. 1083 1083 1137 +[[image:1654593605679-189.png]] 1084 1084 1085 -== 4.2 How to change the LoRa Frequency Bands/Region == 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. 1140 +The battery related documents as below: 1089 1089 1142 +* ((( 1143 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]], 1144 +))) 1145 +* ((( 1146 +[[Lithium-Thionyl Chloride Battery datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]], 1147 +))) 1148 +* ((( 1149 +[[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]] 1150 +))) 1090 1090 1152 +[[image:image-20220607172042-11.png]] 1091 1091 1092 -== 4.3 Can I use LDDS75 in condensation environment? == 1093 1093 1094 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0. 1095 1095 1156 +=== 5.3.1 Battery Note === 1096 1096 1158 +((( 1159 +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. 1160 +))) 1097 1097 1098 -= 5. Trouble Shooting = 1099 1099 1100 -== 5.1 Why I can’t join TTN V3 in US915 / AU915 bands? == 1101 1101 1102 - Itisdueto channel mapping. Pleaseseebelow link: [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]1164 +=== 5.3.2 Replace the battery === 1103 1103 1166 +((( 1167 +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. 1168 +))) 1104 1104 1105 -== 5.2 AT Command input doesn't work == 1170 +((( 1171 +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) 1172 +))) 1106 1106 1174 + 1175 + 1176 += 6. Use AT Command = 1177 + 1178 +== 6.1 Access AT Commands == 1179 + 1180 +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. 1181 + 1182 +[[image:1654593668970-604.png]] 1183 + 1184 +**Connection:** 1185 + 1186 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND** 1187 + 1188 +(% style="background-color:yellow" %)** USB TTL TXD <~-~-~-~-> UART_RXD** 1189 + 1190 +(% style="background-color:yellow" %)** USB TTL RXD <~-~-~-~-> UART_TXD** 1191 + 1192 + 1193 +((( 1194 +((( 1195 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12. 1196 +))) 1197 + 1198 +((( 1199 +LLDS12 will output system info once power on as below: 1200 +))) 1201 +))) 1202 + 1203 + 1204 + [[image:1654593712276-618.png]] 1205 + 1206 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]]. 1207 + 1208 + 1209 += 7. FAQ = 1210 + 1211 +== 7.1 How to change the LoRa Frequency Bands/Region == 1212 + 1213 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]]. 1214 +When downloading the images, choose the required image file for download. 1215 + 1216 + 1217 += 8. Trouble Shooting = 1218 + 1219 +== 8.1 AT Commands input doesn’t work == 1220 + 1221 + 1222 +((( 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. 1224 +))) 1108 1108 1226 + 1227 +== 8.2 Significant error between the output distant value of LiDAR and actual distance == 1228 + 1229 + 1109 1109 ((( 1231 +(% 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.) 1232 +))) 1233 + 1234 +((( 1235 +Troubleshooting: Please avoid use of this product under such circumstance in practice. 1236 +))) 1237 + 1238 +((( 1110 1110 1111 1111 ))) 1112 1112 1242 +((( 1243 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked. 1244 +))) 1113 1113 1114 -= 6. Order Info = 1246 +((( 1247 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter. 1248 +))) 1115 1115 1116 1116 1117 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY** 1118 1118 1252 += 9. Order Info = 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 1255 +Part Number: (% style="color:blue" %)**LLDS12-XX** 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 1258 +(% style="color:blue" %)**XX**(%%): The default frequency band 1135 1135 1136 -= 7. Packing Info = 1260 +* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band 1261 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band 1262 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band 1263 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band 1264 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band 1265 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band 1266 +* (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band 1267 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 1137 1137 1269 += 10. Packing Info = 1138 1138 1271 + 1139 1139 **Package Includes**: 1140 1140 1141 -* LD DS75LoRaWAN DistanceDetectionSensor x 11274 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1 1142 1142 1143 1143 **Dimension and weight**: 1144 1144 ... ... @@ -1147,7 +1147,7 @@ 1147 1147 * Package Size / pcs : cm 1148 1148 * Weight / pcs : g 1149 1149 1150 -= 8. Support =1283 += 11. Support = 1151 1151 1152 1152 * 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. 1153 1153 * 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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