Changes for page LDDS45 - LoRaWAN Distance Detection Sensor User Manual
Last modified by Mengting Qiu on 2025/02/26 15:04
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... ... @@ -20,24 +20,51 @@ 20 20 21 21 22 22 ((( 23 +((( 23 23 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 +))) 24 24 27 +((( 28 + 29 +))) 25 25 31 +((( 26 26 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 +))) 27 27 35 +((( 36 + 37 +))) 28 28 39 +((( 29 29 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 +))) 30 30 43 +((( 44 + 45 +))) 31 31 47 +((( 32 32 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 +))) 33 33 51 +((( 52 + 53 +))) 34 34 55 +((( 35 35 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 +))) 36 36 59 +((( 60 + 61 +))) 37 37 63 +((( 38 38 (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors. 39 39 ))) 40 40 ))) 67 +))) 41 41 42 42 43 43 [[image:1654847051249-359.png]] ... ... @@ -65,12 +65,12 @@ 65 65 66 66 [[image:image-20220610154839-1.png]] 67 67 68 -**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);** 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 +))) 69 69 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)** 71 71 72 72 73 - 74 74 === 1.3.2 Effective measurement range Reference beam pattern === 75 75 76 76 **(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.** ... ... @@ -81,7 +81,9 @@ 81 81 82 82 83 83 111 +((( 84 84 **(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 +))) 85 85 86 86 87 87 [[image:1654852175653-550.png]](% style="display:none" %) ** ** ... ... @@ -100,7 +100,6 @@ 100 100 * Sewer 101 101 * Bottom water level monitoring 102 102 103 - 104 104 == 1.6 Pin mapping and power on == 105 105 106 106 ... ... @@ -147,11 +147,17 @@ 147 147 [[image:image-20220607170145-1.jpeg]] 148 148 149 149 178 +((( 150 150 For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI. 180 +))) 151 151 182 +((( 152 152 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot: 184 +))) 153 153 186 +((( 154 154 **Add APP EUI in the application** 188 +))) 155 155 156 156 [[image:image-20220610161353-4.png]] 157 157 ... ... @@ -194,11 +194,15 @@ 194 194 == 2.3 Uplink Payload == 195 195 196 196 ((( 231 +((( 197 197 LDDS75 will uplink payload via LoRaWAN with below payload format: 233 +))) 198 198 235 +((( 199 199 Uplink payload includes in total 4 bytes. 200 200 Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance 201 201 ))) 239 +))) 202 202 203 203 ((( 204 204 ... ... @@ -233,9 +233,13 @@ 233 233 234 234 === 2.3.2 Distance === 235 235 274 +((( 236 236 Get the distance. Flat object range 280mm - 7500mm. 276 +))) 237 237 278 +((( 238 238 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 +))) 239 239 240 240 241 241 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor. ... ... @@ -242,7 +242,6 @@ 242 242 * If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid. 243 243 244 244 245 - 246 246 === 2.3.3 Interrupt Pin === 247 247 248 248 This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up. ... ... @@ -271,9 +271,13 @@ 271 271 272 272 === 2.3.5 Sensor Flag === 273 273 315 +((( 274 274 0x01: Detect Ultrasonic Sensor 317 +))) 275 275 319 +((( 276 276 0x00: No Ultrasonic Sensor 321 +))) 277 277 278 278 279 279 ... ... @@ -286,7 +286,9 @@ 286 286 287 287 The payload decoder function for TTN V3 is here: 288 288 334 +((( 289 289 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 +))) 290 290 291 291 292 292 ... ... @@ -817,10 +817,17 @@ 817 817 == 2.8 Firmware Change Log == 818 818 819 819 867 +((( 820 820 **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 +))) 821 821 871 +((( 872 + 873 +))) 822 822 875 +((( 823 823 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]] 877 +))) 824 824 825 825 826 826 ... ... @@ -964,7 +964,9 @@ 964 964 [[image:image-20220610172924-5.png]] 965 965 966 966 1021 +((( 967 967 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 +))) 968 968 969 969 970 970 [[image:image-20220610172924-6.png||height="601" width="860"]]