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Last modified by Xiaoling on 2025/04/27 16:45
From version 119.4
edited by Xiaoling
on 2022/06/10 15:38
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To version 111.32
edited by Xiaoling
on 2022/06/10 14:53
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Title
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1 -LDDS75 - LoRaWAN Distance Detection Sensor User Manual
1 +LLDS12-LoRaWAN LiDAR ToF Distance Sensor User Manual
Content
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1 1  (% style="text-align:center" %)
2 -[[image:1654846127817-788.png]]
2 +[[image:image-20220610095606-1.png]]
3 3  
4 +
4 4  **Contents:**
5 5  
7 +{{toc/}}
6 6  
7 7  
8 8  
... ... @@ -12,28 +12,33 @@
12 12  
13 13  = 1.  Introduction =
14 14  
15 -== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
17 +== 1.1 ​ What is LoRaWAN LiDAR ToF Distance Sensor ==
16 16  
17 17  (((
18 18  
19 19  
20 20  (((
21 -The Dragino LDDS75 is a **(% style="color:#4F81BD" %)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 **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.
23 +The Dragino LLDS12 is a (% style="color:blue" %)**LoRaWAN LiDAR ToF (Time of Flight) Distance Sensor**(%%) for Internet of Things solution. It is capable to measure the distance to an object as close as 10 centimeters (+/- 5cm up to 6m) and as far as 12 meters (+/-1% starting at 6m)!. The LiDAR probe uses laser induction technology for distance measurement.
24 +)))
22 22  
26 +(((
27 +The LLDS12 can be applied to scenarios such as horizontal distance measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, etc.
28 +)))
23 23  
24 -It detects the distance** between the measured object and the sensor**, and uploads the value via wireless to LoRaWAN IoT Server.
30 +(((
31 +It detects the distance between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server.
32 +)))
25 25  
34 +(((
35 +The LoRa wireless technology used in LLDS12 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.
36 +)))
26 26  
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.
38 +(((
39 +LLDS12 is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
40 +)))
28 28  
29 -
30 -LDDS75 is powered by **4000mA or 8500mAh Li-SOCI2 battery**; It is designed for long term use up to 10 years*.
31 -
32 -
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.
34 -
35 -
36 -*Actually lifetime depends on network coverage and uplink interval and other factors
42 +(((
43 +Each LLDS12 is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
37 37  )))
38 38  )))
39 39  
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797 797  * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
798 798  * Blink once when device transmit a packet.
799 799  
800 -
801 801  == 2.8  ​Firmware Change Log ==
802 802  
803 803  
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868 868  * The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
869 869  * The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
870 870  
877 +
878 +
871 871  = 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
872 872  
873 873  (((
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955 955  [[image:image-20220607171554-8.png]]
956 956  
957 957  
966 +
958 958  (((
959 959  (% style="color:#037691" %)**Downlink Command: 0x01**
960 960  )))
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972 972  )))
973 973  * (((
974 974  Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
984 +
985 +
986 +
975 975  )))
976 976  
977 977  == 4.2  Set Interrupt Mode ==
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1198 1198  
1199 1199  
1200 1200  (((
1201 -(((
1202 1202  In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1203 -)))
1204 1204  
1205 -(((
1206 1206  LLDS12 will output system info once power on as below:
1207 1207  )))
1208 -)))
1209 1209  
1210 1210  
1211 1211   [[image:1654593712276-618.png]]
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1226 1226  == 8.1  AT Commands input doesn’t work ==
1227 1227  
1228 1228  
1229 -(((
1230 1230  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.
1231 -)))
1232 1232  
1233 1233  
1234 1234  == 8.2  Significant error between the output distant value of LiDAR and actual distance ==
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1273 1273  * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1274 1274  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1275 1275  
1276 -
1277 -
1278 1278  = 10. ​ Packing Info =
1279 1279  
1280 1280  
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1289 1289  * Package Size / pcs : cm
1290 1290  * Weight / pcs : g
1291 1291  
1292 -
1293 -
1294 1294  = 11.  ​Support =
1295 1295  
1296 1296  * 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.
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