Changes for page LDDS45 - LoRaWAN Distance Detection Sensor User Manual
Last modified by Xiaoling on 2025/04/27 13:54
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... ... @@ -1,1 +1,1 @@ 1 -LDDS 45 - LoRaWAN Distance Detection Sensor User Manual1 +LDDS75 - LoRaWAN Distance Detection Sensor User Manual - Content
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... ... @@ -1,9 +1,8 @@ 1 1 (% style="text-align:center" %) 2 -[[image:1654 912614655-664.png||height="530" width="628"]]2 +[[image:1654846127817-788.png]] 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 == ... ... @@ -20,56 +20,27 @@ 20 20 21 21 22 22 ((( 23 -((( 24 -The Dragino LDDS45 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 LDDS45 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 -))) 21 +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. 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 -The LoRa wireless technology used in LDDS45 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 -))) 27 +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. 42 42 43 -((( 44 - 45 -))) 46 46 47 -((( 48 -LDDS45 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*. 49 -))) 30 +LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*. 50 50 51 -((( 52 - 53 -))) 54 54 55 -((( 56 -Each LDDS45 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 -))) 33 +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. 58 58 59 -((( 60 - 61 -))) 62 62 63 -((( 64 -(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors. 65 - 66 - 36 +(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors 67 67 ))) 68 68 ))) 69 -))) 70 70 71 -[[image:1654912858581-740.png]] 72 72 41 +[[image:1654847051249-359.png]] 73 73 74 74 75 75 ... ... @@ -76,11 +76,10 @@ 76 76 == 1.2 Features == 77 77 78 78 * LoRaWAN 1.0.3 Class A 79 -* Ultra -low power consumption48 +* Ultra low power consumption 80 80 * Distance Detection by Ultrasonic technology 81 -* Flat object range 30mm -4500mm50 +* Flat object range 280mm - 7500mm 82 82 * Accuracy: ±(1cm+S*0.3%) (S: Distance) 83 -* Measure Angle: 60° 84 84 * Cable Length : 25cm 85 85 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865 86 86 * AT Commands to change parameters ... ... @@ -87,7 +87,7 @@ 87 87 * Uplink on periodically 88 88 * Downlink to change configure 89 89 * IP66 Waterproof Enclosure 90 -* 8500mAh Battery for long term use 58 +* 4000mAh or 8500mAh Battery for long term use 91 91 92 92 93 93 ... ... @@ -97,15 +97,12 @@ 97 97 98 98 [[image:image-20220610154839-1.png]] 99 99 68 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);** 100 100 101 -((( 102 -**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing); ** 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 -**~ 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)** 105 -))) 106 106 107 107 108 - 109 109 === 1.3.2 Effective measurement range Reference beam pattern === 110 110 111 111 **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.** ... ... @@ -115,10 +115,7 @@ 115 115 [[image:1654852253176-749.png]] 116 116 117 117 118 - 119 -((( 120 120 **(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.** 121 -))) 122 122 123 123 124 124 [[image:1654852175653-550.png]](% style="display:none" %) ** ** ... ... @@ -146,16 +146,16 @@ 146 146 147 147 148 148 149 -= 2. Configure LDDS 45 to connect to LoRaWAN network =111 += 2. Configure LDDS75 to connect to LoRaWAN network = 150 150 151 151 == 2.1 How it works == 152 152 153 153 ((( 154 -The LDDS 45 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS45. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value116 +The LDDS75 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value 155 155 ))) 156 156 157 157 ((( 158 -In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS 45.120 +In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS75. 159 159 ))) 160 160 161 161 ... ... @@ -164,15 +164,10 @@ 164 164 165 165 ((( 166 166 Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example. 167 - 168 - 169 169 ))) 170 170 171 -[[image:1654913911773-521.png]] 172 - 173 - 174 174 ((( 175 - 132 +[[image:1654848616367-242.png]] 176 176 ))) 177 177 178 178 ((( ... ... @@ -180,27 +180,21 @@ 180 180 ))) 181 181 182 182 ((( 183 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS 45.140 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75. 184 184 ))) 185 185 186 186 ((( 187 -Each LDDS 45 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.144 +Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below. 188 188 ))) 189 189 190 190 [[image:image-20220607170145-1.jpeg]] 191 191 192 192 193 -((( 194 194 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI. 195 -))) 196 196 197 -((( 198 198 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot: 199 -))) 200 200 201 -((( 202 202 **Add APP EUI in the application** 203 -))) 204 204 205 205 [[image:image-20220610161353-4.png]] 206 206 ... ... @@ -243,15 +243,11 @@ 243 243 == 2.3 Uplink Payload == 244 244 245 245 ((( 246 -((( 247 247 LDDS75 will uplink payload via LoRaWAN with below payload format: 248 -))) 249 249 250 -((( 251 251 Uplink payload includes in total 4 bytes. 252 252 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance 253 253 ))) 254 -))) 255 255 256 256 ((( 257 257 ... ... @@ -262,12 +262,12 @@ 262 262 **Size (bytes)** 263 263 )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1** 264 264 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|((( 265 -[[Distance>>||anchor="H2.3. 2A0Distance"]]212 +[[Distance>>||anchor="H2.3.3A0Distance"]] 266 266 267 267 (unit: mm) 268 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3. 3A0InterruptPin"]]|(((269 -[[Temperature (Optional )>>||anchor="H2.3. 4A0DS18B20Temperaturesensor"]]270 -)))|[[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]] 271 271 272 272 [[image:1654850511545-399.png]] 273 273 ... ... @@ -286,13 +286,9 @@ 286 286 287 287 === 2.3.2 Distance === 288 288 289 -((( 290 290 Get the distance. Flat object range 280mm - 7500mm. 291 -))) 292 292 293 -((( 294 294 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.** 295 -))) 296 296 297 297 298 298 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor. ... ... @@ -302,7 +302,7 @@ 302 302 303 303 === 2.3.3 Interrupt Pin === 304 304 305 -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. 306 306 307 307 **Example:** 308 308 ... ... @@ -328,18 +328,14 @@ 328 328 329 329 === 2.3.5 Sensor Flag === 330 330 331 -((( 332 332 0x01: Detect Ultrasonic Sensor 333 -))) 334 334 335 -((( 336 336 0x00: No Ultrasonic Sensor 337 -))) 338 338 339 339 279 +=== 280 +(% style="color:inherit; font-family:inherit" %)2.3.6 Decode payload in The Things Network(%%) === 340 340 341 -=== 2.3.6 Decode payload in The Things Network === 342 - 343 343 While using TTN network, you can add the payload format to decode the payload. 344 344 345 345 ... ... @@ -347,9 +347,7 @@ 347 347 348 348 The payload decoder function for TTN V3 is here: 349 349 350 -((( 351 351 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/]] 352 -))) 353 353 354 354 355 355 ... ... @@ -880,17 +880,10 @@ 880 880 == 2.8 Firmware Change Log == 881 881 882 882 883 -((( 884 884 **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/]] 885 -))) 886 886 887 -((( 888 - 889 -))) 890 890 891 -((( 892 892 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]] 893 -))) 894 894 895 895 896 896 ... ... @@ -899,13 +899,11 @@ 899 899 900 900 [[image:image-20220610172003-1.png]] 901 901 902 - 903 903 [[image:image-20220610172003-2.png]] 904 904 905 905 835 +== 2.10 Battery Analysis == 906 906 907 -== 2.10 Battery Analysis == 908 - 909 909 === 2.10.1 Battery Type === 910 910 911 911 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. ... ... @@ -914,7 +914,7 @@ 914 914 The battery related documents as below: 915 915 916 916 * ((( 917 -[[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]], 918 918 ))) 919 919 * ((( 920 920 [[Lithium-Thionyl Chloride Battery datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]], ... ... @@ -929,31 +929,84 @@ 929 929 930 930 === 2.10.2 Replace the battery === 931 931 860 +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 + 862 + 863 +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) 864 + 865 + 866 + 867 += 3. LiDAR ToF Measurement = 868 + 869 +== 3.1 Principle of Distance Measurement == 870 + 871 +The LiDAR probe is based on TOF, namely, Time of Flight principle. To be specific, the product emits modulation wave of near infrared ray on a periodic basis, which will be reflected after contacting object. The product obtains the time of flight by measuring round-trip phase difference and then calculates relative range between the product and the detection object, as shown below. 872 + 873 +[[image:1654831757579-263.png]] 874 + 875 + 876 + 877 +== 3.2 Distance Measurement Characteristics == 878 + 879 +With optimization of light path and algorithm, The LiDAR probe has minimized influence from external environment on distance measurement performance. Despite that, the range of distance measurement may still be affected by the environment illumination intensity and the reflectivity of detection object. As shown in below: 880 + 881 +[[image:1654831774373-275.png]] 882 + 883 + 932 932 ((( 933 - Youcan changetheatteryintheLDDS75.The type of battery isotlimited aslong astheoutputsbetween3v to3.6v. Onthemain board,thereisa diode(D1)betweenthe battery and the maincircuit. If you need to use a batterywithlessthan 3.3v, pleaseremovethe D1 and shortcut the two padsofitsotherewon't be voltage dropbetween battery and main board.885 +(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable. 934 934 ))) 935 935 936 936 ((( 937 - 889 +(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m. 938 938 ))) 939 939 940 940 ((( 941 - Thedefaultbatterypackof LDDS75 includesaER18505 plus super capacitor. If user can'tfind thispack locally,theycan findER18505 orequivalence,which will alsoworkinmost case.TheSPCcanenlargethebattery lifefor highfrequency use (update period below 5 minutes)893 +(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m. 942 942 ))) 943 943 944 944 897 +((( 898 +Vertical Coordinates: Represents the radius of light spot for The LiDAR probe at the different distances. The diameter of light spot depends on the FOV of The LiDAR probe (the term of FOV generally refers to the smaller value between the receiving angle and the transmitting angle), which is calculated as follows: 899 +))) 945 945 946 -= 3. Configure LDDS75 via AT Command or LoRaWAN Downlink = 947 947 902 +[[image:1654831797521-720.png]] 903 + 904 + 948 948 ((( 906 +In the formula above, d is the diameter of light spot; D is detecting range; β is the value of the receiving angle of The LiDAR probe, 3.6°. Correspondence between the diameter of light spot and detecting range is given in Table below. 907 +))) 908 + 909 +[[image:1654831810009-716.png]] 910 + 911 + 949 949 ((( 950 - Use can configureLDDS75viaATCommand orLoRaWANDownlink.913 +If the light spot reaches two objects with different distances, as shown in Figure 3, the output distance value will be a value between the actual distance values of the two objects. For a high accuracy requirement in practice, the above situation should be noticed to avoid the measurement error. 951 951 ))) 915 + 916 + 917 + 918 +== 3.3 Notice of usage: == 919 + 920 +Possible invalid /wrong reading for LiDAR ToF tech: 921 + 922 +* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings. 923 +* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong. 924 +* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe. 925 +* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window. 926 + 927 += 4. Configure LLDS12 via AT Command or LoRaWAN Downlink = 928 + 929 +((( 930 +((( 931 +Use can configure LLDS12 via AT Command or LoRaWAN Downlink. 952 952 ))) 933 +))) 953 953 954 954 * ((( 955 955 ((( 956 -AT Command Connection: See [[FAQ>>||anchor="H 4.A0FAQ"]].937 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]]. 957 957 ))) 958 958 ))) 959 959 * ((( ... ... @@ -968,7 +968,7 @@ 968 968 ))) 969 969 970 970 ((( 971 -There are two kinds of commands to configure LD DS75, they are:952 +There are two kinds of commands to configure LLDS12, they are: 972 972 ))) 973 973 ))) 974 974 ... ... @@ -1009,159 +1009,351 @@ 1009 1009 1010 1010 * ((( 1011 1011 ((( 1012 -(% style="color:#4f81bd" %)** Commands special design for LD DS75**993 +(% style="color:#4f81bd" %)** Commands special design for LLDS12** 1013 1013 ))) 1014 1014 ))) 1015 1015 1016 1016 ((( 1017 1017 ((( 1018 -These commands only valid for LD DS75, as below:999 +These commands only valid for LLDS12, as below: 1019 1019 ))) 1020 1020 ))) 1021 1021 1022 1022 1023 1023 1024 -== 3.1AccessATCommands ==1005 +== 4.1 Set Transmit Interval Time == 1025 1025 1026 - LDDS75 supportsATCommand setin the stock firmware.You canuse a USB toTTL adapterto connect to LDDS75 for using ATcommand, asbelow.1007 +Feature: Change LoRaWAN End Node Transmit Interval. 1027 1027 1028 - [[image:image-20220610172924-4.png||height="483"width="988"]]1009 +(% style="color:#037691" %)**AT Command: AT+TDC** 1029 1029 1011 +[[image:image-20220607171554-8.png]] 1030 1030 1031 -Or if you have below board, use below connection: 1032 1032 1014 +((( 1015 +(% style="color:#037691" %)**Downlink Command: 0x01** 1016 +))) 1033 1033 1034 -[[image:image-20220610172924-5.png]] 1018 +((( 1019 +Format: Command Code (0x01) followed by 3 bytes time value. 1020 +))) 1035 1035 1022 +((( 1023 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01. 1024 +))) 1036 1036 1026 +* ((( 1027 +Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds 1028 +))) 1029 +* ((( 1030 +Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 1031 +))) 1032 + 1033 +== 4.2 Set Interrupt Mode == 1034 + 1035 +Feature, Set Interrupt mode for GPIO_EXIT. 1036 + 1037 +(% style="color:#037691" %)**AT Command: AT+INTMOD** 1038 + 1039 +[[image:image-20220610105806-2.png]] 1040 + 1041 + 1037 1037 ((( 1038 - 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:1043 +(% style="color:#037691" %)**Downlink Command: 0x06** 1039 1039 ))) 1040 1040 1046 +((( 1047 +Format: Command Code (0x06) followed by 3 bytes. 1048 +))) 1041 1041 1042 - [[image:image-20220610172924-6.png||height="601" width="860"]] 1050 +((( 1051 +This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06. 1052 +))) 1043 1043 1054 +* ((( 1055 +Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode 1056 +))) 1057 +* ((( 1058 +Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 1059 +))) 1044 1044 1061 +== 4.3 Get Firmware Version Info == 1045 1045 1046 - == 3.2 SetTransmitIntervalTime==1063 +Feature: use downlink to get firmware version. 1047 1047 1048 - Feature:ChangeLoRaWAN EndNode Transmit Interval.1065 +(% style="color:#037691" %)**Downlink Command: 0x26** 1049 1049 1050 - (% style="color:#037691" %)**AT Command: AT+TDC**1067 +[[image:image-20220607171917-10.png]] 1051 1051 1052 -[[image:image-20220610173409-7.png]] 1069 +* Reply to the confirmation package: 26 01 1070 +* Reply to non-confirmed packet: 26 00 1053 1053 1072 +Device will send an uplink after got this downlink command. With below payload: 1054 1054 1074 +Configures info payload: 1075 + 1076 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %) 1077 +|=((( 1078 +**Size(bytes)** 1079 +)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1** 1080 +|**Value**|Software Type|((( 1081 +Frequency 1082 + 1083 +Band 1084 +)))|Sub-band|((( 1085 +Firmware 1086 + 1087 +Version 1088 +)))|Sensor Type|Reserve|((( 1089 +[[Message Type>>||anchor="H2.3.7A0MessageType"]] 1090 +Always 0x02 1091 +))) 1092 + 1093 +**Software Type**: Always 0x03 for LLDS12 1094 + 1095 + 1096 +**Frequency Band**: 1097 + 1098 +*0x01: EU868 1099 + 1100 +*0x02: US915 1101 + 1102 +*0x03: IN865 1103 + 1104 +*0x04: AU915 1105 + 1106 +*0x05: KZ865 1107 + 1108 +*0x06: RU864 1109 + 1110 +*0x07: AS923 1111 + 1112 +*0x08: AS923-1 1113 + 1114 +*0x09: AS923-2 1115 + 1116 +*0xa0: AS923-3 1117 + 1118 + 1119 +**Sub-Band**: value 0x00 ~~ 0x08 1120 + 1121 + 1122 +**Firmware Version**: 0x0100, Means: v1.0.0 version 1123 + 1124 + 1125 +**Sensor Type**: 1126 + 1127 +0x01: LSE01 1128 + 1129 +0x02: LDDS75 1130 + 1131 +0x03: LDDS20 1132 + 1133 +0x04: LLMS01 1134 + 1135 +0x05: LSPH01 1136 + 1137 +0x06: LSNPK01 1138 + 1139 +0x07: LLDS12 1140 + 1141 + 1142 + 1143 += 5. Battery & How to replace = 1144 + 1145 +== 5.1 Battery Type == 1146 + 1055 1055 ((( 1056 - (%style="color:#037691"%)**DownlinkCommand:0x01**1148 +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. 1057 1057 ))) 1058 1058 1059 1059 ((( 1152 +The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance. 1153 +))) 1154 + 1155 +[[image:1654593587246-335.png]] 1156 + 1157 + 1158 +Minimum Working Voltage for the LLDS12: 1159 + 1160 +LLDS12: 2.45v ~~ 3.6v 1161 + 1162 + 1163 + 1164 +== 5.2 Replace Battery == 1165 + 1060 1060 ((( 1061 -Format: Command Code (0x01) followed by 3 bytes time value. 1167 +Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery. 1168 +))) 1062 1062 1063 1063 ((( 1064 - If the downlink payload=0100003C,itmeanssettheEND Node’sTransmitIntervalto 0x00003C=60(S), whiletype codeis01.1171 +And make sure the positive and negative pins match. 1065 1065 ))) 1066 1066 1067 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds 1068 -* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 1174 + 1175 + 1176 +== 5.3 Power Consumption Analyze == 1177 + 1178 +((( 1179 +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. 1069 1069 ))) 1181 + 1182 +((( 1183 +Instruction to use as below: 1070 1070 ))) 1071 1071 1072 1072 1187 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: 1073 1073 1189 +[[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/]] 1074 1074 1075 1075 1076 - ==3.3SetInterruptMode==1192 +**Step 2**: Open it and choose 1077 1077 1078 -Feature, Set Interrupt mode for GPIO_EXIT. 1194 +* Product Model 1195 +* Uplink Interval 1196 +* Working Mode 1079 1079 1080 - (%style="color:#037691"%)**DownlinkCommand:AT+INTMOD**1198 +And the Life expectation in difference case will be shown on the right. 1081 1081 1082 -[[image: image-20220610174917-9.png]]1200 +[[image:1654593605679-189.png]] 1083 1083 1084 1084 1085 - (%style="color:#037691"%)**DownlinkCommand:0x06**1203 +The battery related documents as below: 1086 1086 1087 -Format: Command Code (0x06) followed by 3 bytes. 1205 +* ((( 1206 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]], 1207 +))) 1208 +* ((( 1209 +[[Lithium-Thionyl Chloride Battery datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]], 1210 +))) 1211 +* ((( 1212 +[[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]] 1213 +))) 1088 1088 1215 +[[image:image-20220607172042-11.png]] 1216 + 1217 + 1218 + 1219 +=== 5.3.1 Battery Note === 1220 + 1089 1089 ((( 1090 -This means that theinterruptmodeofthe end nodeissetto0x000003=3(risingedgetrigger),andthe typecodeis06.1222 +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. 1091 1091 ))) 1092 1092 1093 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode 1094 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 1095 1095 1096 1096 1227 +=== 5.3.2 Replace the battery === 1097 1097 1098 -= 4. FAQ = 1229 +((( 1230 +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. 1231 +))) 1099 1099 1100 -== 4.1 What is the frequency plan for LDDS75? == 1233 +((( 1234 +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) 1235 +))) 1101 1101 1102 -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"]] 1103 1103 1104 1104 1239 += 6. Use AT Command = 1105 1105 1106 -== 4.2How tochangetheLoRaFrequency Bands/Region==1241 +== 6.1 Access AT Commands == 1107 1107 1108 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]]. 1109 -When downloading the images, choose the required image file for download. 1243 +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. 1110 1110 1245 +[[image:1654593668970-604.png]] 1111 1111 1247 +**Connection:** 1112 1112 1113 - ==4.3 Can I useLDDS75 incondensation environment?==1249 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND** 1114 1114 1115 - LDDS75isnotsuitabletobe used in condensation environment. Condensationon the LDDS75 probewillaffectthereadingandalwaysgot 0.1251 +(% style="background-color:yellow" %)** USB TTL TXD <~-~-~-~-> UART_RXD** 1116 1116 1253 +(% style="background-color:yellow" %)** USB TTL RXD <~-~-~-~-> UART_TXD** 1117 1117 1118 1118 1119 -= 5. Trouble Shooting = 1256 +((( 1257 +((( 1258 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12. 1259 +))) 1120 1120 1121 -== 5.1 Why I can’t join TTN V3 in US915 / AU915 bands? == 1261 +((( 1262 +LLDS12 will output system info once power on as below: 1263 +))) 1264 +))) 1122 1122 1123 -It is due to channel mapping. Please see below link: [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] 1124 1124 1267 + [[image:1654593712276-618.png]] 1125 1125 1126 - ==5.2AT Commandinputdoesn't work==1269 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]]. 1127 1127 1271 + 1272 += 7. FAQ = 1273 + 1274 +== 7.1 How to change the LoRa Frequency Bands/Region == 1275 + 1276 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]]. 1277 +When downloading the images, choose the required image file for download. 1278 + 1279 + 1280 += 8. Trouble Shooting = 1281 + 1282 +== 8.1 AT Commands input doesn’t work == 1283 + 1284 + 1285 +((( 1128 1128 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. 1287 +))) 1129 1129 1289 + 1290 +== 8.2 Significant error between the output distant value of LiDAR and actual distance == 1291 + 1292 + 1130 1130 ((( 1131 - 1294 +(% 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.) 1132 1132 ))) 1133 1133 1297 +((( 1298 +Troubleshooting: Please avoid use of this product under such circumstance in practice. 1299 +))) 1134 1134 1135 -= 6. Order Info = 1301 +((( 1302 + 1303 +))) 1136 1136 1305 +((( 1306 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked. 1307 +))) 1137 1137 1138 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY** 1309 +((( 1310 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter. 1311 +))) 1139 1139 1140 1140 1141 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band 1142 1142 1143 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band 1144 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band 1145 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band 1146 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band 1147 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band 1148 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band 1149 -* (% style="color:red" %)**IN865 **(%%)**:** LoRaWAN IN865 band 1150 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band 1315 += 9. Order Info = 1151 1151 1152 -(% style="color:blue" %)**YY**(%%): Battery Option 1153 1153 1154 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery 1155 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery 1318 +Part Number: (% style="color:blue" %)**LLDS12-XX** 1156 1156 1157 1157 1321 +(% style="color:blue" %)**XX**(%%): The default frequency band 1158 1158 1159 -= 7. Packing Info = 1323 +* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band 1324 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band 1325 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band 1326 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band 1327 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band 1328 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band 1329 +* (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band 1330 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 1160 1160 1332 += 10. Packing Info = 1161 1161 1334 + 1162 1162 **Package Includes**: 1163 1163 1164 -* LD DS75LoRaWAN DistanceDetectionSensor x 11337 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1 1165 1165 1166 1166 **Dimension and weight**: 1167 1167 ... ... @@ -1170,9 +1170,7 @@ 1170 1170 * Package Size / pcs : cm 1171 1171 * Weight / pcs : g 1172 1172 1346 += 11. Support = 1173 1173 1174 - 1175 -= 8. Support = 1176 - 1177 1177 * 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. 1178 1178 * 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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