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Summary

Details

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Title
... ... @@ -1,1 +1,1 @@
1 -LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual
1 +LDDS75 - LoRaWAN Distance Detection Sensor User Manual
Content
... ... @@ -1,97 +1,54 @@
1 1  (% style="text-align:center" %)
2 -[[image:1655254599445-662.png]]
2 +[[image:1654846127817-788.png]]
3 3  
4 +**Contents:**
4 4  
5 5  
6 6  
7 -**Table of Contents:**
8 8  
9 9  
10 10  
11 11  
12 12  
13 -
14 -
15 -
16 16  = 1.  Introduction =
17 17  
18 -== 1.1 ​ What is LoRaWAN Ultrasonic liquid level Sensor ==
15 +== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
19 19  
20 20  (((
21 21  
22 22  
23 23  (((
24 -(((
25 -(((
26 -The Dragino LDDS20 is a (% style="color:#4472c4" %)**LoRaWAN Ultrasonic liquid level sensor**(%%) for Internet of Things solution. It uses (% style="color:#4472c4" %)**none-contact method **(%%)to measure the height of liquid in a container without opening the container, and send the value via LoRaWAN network to IoT Server
27 -)))
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.
28 28  
29 -(((
30 -
31 -)))
32 32  
33 -(((
34 -The LDDS20 sensor is installed directly below the container to detect the height of the liquid level. User doesn’t need to open a hole on the container to be tested. The (% style="color:#4472c4" %)**none-contact measurement makes the measurement safety, easier and possible for some strict situation**. 
35 -)))
24 +It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
36 36  
37 -(((
38 -
39 -)))
40 40  
41 -(((
42 -LDDS20 uses ultrasonic sensing technology for distance measurement. LDDS20 is of high accuracy to measure various liquid such as: (% style="color:#4472c4" %)**toxic substances**(%%), (% style="color:#4472c4" %)**strong acids**(%%), (% style="color:#4472c4" %)**strong alkalis**(%%) and (% style="color:#4472c4" %)**various pure liquids**(%%) in high-temperature and high-pressure airtight containers.
43 -)))
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.
44 44  
45 -(((
46 -
47 -)))
48 48  
49 -(((
50 -The LoRa wireless technology used in LDDS20 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.
51 -)))
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*.
52 52  
53 -(((
54 -
55 -)))
56 56  
57 -(((
58 -LDDS20 is powered by (% style="color:#4472c4" %)**8500mA Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
59 -)))
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.
60 60  
61 -(((
62 -
63 -)))
64 64  
65 -(((
66 -Each LDDS20 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.
36 +(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors
67 67  )))
68 -
69 -(((
70 -
71 71  )))
72 -)))
73 73  
74 -(((
75 -(((
76 -(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
77 -)))
78 -)))
79 -)))
80 -)))
81 81  
41 +[[image:1654847051249-359.png]]
82 82  
83 -[[image:1655255122126-327.png]]
84 84  
85 85  
86 -
87 87  == ​1.2  Features ==
88 88  
89 89  * LoRaWAN 1.0.3 Class A
90 90  * Ultra low power consumption
91 -* Liquid Level Measurement by Ultrasonic technology
92 -* Measure through container, No need to contact Liquid.
93 -* Valid level range 20mm - 2000mm
94 -* Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
49 +* Distance Detection by Ultrasonic technology
50 +* Flat object range 280mm - 7500mm
51 +* Accuracy: ±(1cm+S*0.3%) (S: Distance)
95 95  * Cable Length : 25cm
96 96  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
97 97  * AT Commands to change parameters
... ... @@ -98,30 +98,38 @@
98 98  * Uplink on periodically
99 99  * Downlink to change configure
100 100  * IP66 Waterproof Enclosure
101 -* 8500mAh Battery for long term use
58 +* 4000mAh or 8500mAh Battery for long term use
102 102  
103 103  
104 104  
105 -== 1.3  Suitable Container & Liquid ==
62 +== 1.3  Specification ==
106 106  
107 -* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
108 -* Container shape is regular, and surface is smooth.
109 -* Container Thickness:
110 -** Pure metal material.  2~~8mm, best is 3~~5mm
111 -** Pure non metal material: <10 mm
112 -* Pure liquid without irregular deposition.
64 +=== 1.3.1  Rated environmental conditions ===
113 113  
66 +[[image:image-20220610154839-1.png]]
114 114  
68 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
115 115  
116 -== 1.4  Mechanical ==
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)**
117 117  
118 -[[image:image-20220615090910-1.png]]
119 119  
120 120  
121 -[[image:image-20220615090910-2.png]]
74 +=== 1.3.2  Effective measurement range Reference beam pattern ===
122 122  
76 +**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
123 123  
124 124  
79 +
80 +[[image:1654852253176-749.png]]
81 +
82 +
83 +**(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.**
84 +
85 +
86 +[[image:1654852175653-550.png]](% style="display:none" %) ** **
87 +
88 +
89 +
125 125  == 1.5 ​ Applications ==
126 126  
127 127  * Horizontal distance measurement
... ... @@ -134,6 +134,8 @@
134 134  * Sewer
135 135  * Bottom water level monitoring
136 136  
102 +
103 +
137 137  == 1.6  Pin mapping and power on ==
138 138  
139 139  
... ... @@ -170,8 +170,6 @@
170 170  )))
171 171  
172 172  (((
173 -
174 -
175 175  (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
176 176  )))
177 177  
... ... @@ -182,19 +182,11 @@
182 182  [[image:image-20220607170145-1.jpeg]]
183 183  
184 184  
185 -(((
186 186  For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
187 -)))
188 188  
189 -(((
190 190  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
191 -)))
192 192  
193 -(((
194 -
195 -
196 196  **Add APP EUI in the application**
197 -)))
198 198  
199 199  [[image:image-20220610161353-4.png]]
200 200  
... ... @@ -237,15 +237,11 @@
237 237  == 2.3  ​Uplink Payload ==
238 238  
239 239  (((
240 -(((
241 241  LDDS75 will uplink payload via LoRaWAN with below payload format: 
242 -)))
243 243  
244 -(((
245 245  Uplink payload includes in total 4 bytes.
246 246  Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
247 247  )))
248 -)))
249 249  
250 250  (((
251 251  
... ... @@ -256,12 +256,12 @@
256 256  **Size (bytes)**
257 257  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
258 258  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
259 -[[Distance>>||anchor="H2.3.2A0Distance"]]
212 +[[Distance>>||anchor="H2.3.3A0Distance"]]
260 260  
261 261  (unit: mm)
262 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
263 -[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
264 -)))|[[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]]
265 265  
266 266  [[image:1654850511545-399.png]]
267 267  
... ... @@ -280,21 +280,19 @@
280 280  
281 281  === 2.3.2  Distance ===
282 282  
283 -(((
284 284  Get the distance. Flat object range 280mm - 7500mm.
285 -)))
286 286  
287 -(((
288 288  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.**
289 -)))
290 290  
291 291  
292 292  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
293 293  * 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.
294 294  
244 +
245 +
295 295  === 2.3.3  Interrupt Pin ===
296 296  
297 -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.
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.
298 298  
299 299  **Example:**
300 300  
... ... @@ -320,18 +320,14 @@
320 320  
321 321  === 2.3.5  Sensor Flag ===
322 322  
323 -(((
324 324  0x01: Detect Ultrasonic Sensor
325 -)))
326 326  
327 -(((
328 328  0x00: No Ultrasonic Sensor
329 -)))
330 330  
331 331  
279 +===
280 +(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
332 332  
333 -=== 2.3.6  Decode payload in The Things Network ===
334 -
335 335  While using TTN network, you can add the payload format to decode the payload.
336 336  
337 337  
... ... @@ -339,9 +339,7 @@
339 339  
340 340  The payload decoder function for TTN V3 is here:
341 341  
342 -(((
343 343  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/]]
344 -)))
345 345  
346 346  
347 347  
... ... @@ -859,91 +859,92 @@
859 859  
860 860  == 2.7  LED Indicator ==
861 861  
862 -The LDDS75 has an internal LED which is to show the status of different state.
807 +The LLDS12 has an internal LED which is to show the status of different state.
863 863  
864 -
865 -* Blink once when device power on.
866 -* The device detects the sensor and flashes 5 times.
867 -* Solid ON for 5 seconds once device successful Join the network.
809 +* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
868 868  * Blink once when device transmit a packet.
869 869  
870 870  == 2.8  ​Firmware Change Log ==
871 871  
872 872  
873 -(((
874 -**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/]]
875 -)))
815 +**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/]]
876 876  
877 -(((
878 -
879 -)))
880 880  
881 -(((
882 882  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
883 -)))
884 884  
885 885  
886 886  
887 -== 2.9  Mechanical ==
822 += 3.  LiDAR ToF Measurement =
888 888  
824 +== 3.1 Principle of Distance Measurement ==
889 889  
890 -[[image:image-20220610172003-1.png]]
826 +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.
891 891  
828 +[[image:1654831757579-263.png]]
892 892  
893 -[[image:image-20220610172003-2.png]]
894 894  
895 895  
832 +== 3.2 Distance Measurement Characteristics ==
896 896  
897 -== 2.10  Battery Analysis ==
834 +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:
898 898  
899 -=== 2.10.1  Battery Type ===
836 +[[image:1654831774373-275.png]]
900 900  
901 -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.
902 902  
839 +(((
840 +(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
841 +)))
903 903  
904 -The battery related documents as below:
843 +(((
844 +(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
845 +)))
905 905  
906 -* (((
907 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
847 +(((
848 +(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
908 908  )))
909 -* (((
910 -[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
911 -)))
912 -* (((
913 -[[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]]
914 -)))
915 915  
916 - [[image:image-20220610172400-3.png]]
917 917  
852 +(((
853 +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:
854 +)))
918 918  
919 919  
920 -=== 2.10.2  Replace the battery ===
857 +[[image:1654831797521-720.png]]
921 921  
922 -(((
923 -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.
924 -)))
925 925  
926 926  (((
927 -
861 +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.
928 928  )))
929 929  
864 +[[image:1654831810009-716.png]]
865 +
866 +
930 930  (((
931 -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)
868 +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.
932 932  )))
933 933  
934 934  
935 935  
936 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
873 +== 3.3 Notice of usage: ==
937 937  
875 +Possible invalid /wrong reading for LiDAR ToF tech:
876 +
877 +* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
878 +* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
879 +* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
880 +* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
881 +
882 += 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
883 +
938 938  (((
939 939  (((
940 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
886 +Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
941 941  )))
942 942  )))
943 943  
944 944  * (((
945 945  (((
946 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
892 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
947 947  )))
948 948  )))
949 949  * (((
... ... @@ -958,7 +958,7 @@
958 958  )))
959 959  
960 960  (((
961 -There are two kinds of commands to configure LDDS75, they are:
907 +There are two kinds of commands to configure LLDS12, they are:
962 962  )))
963 963  )))
964 964  
... ... @@ -999,155 +999,351 @@
999 999  
1000 1000  * (((
1001 1001  (((
1002 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
948 +(% style="color:#4f81bd" %)** Commands special design for LLDS12**
1003 1003  )))
1004 1004  )))
1005 1005  
1006 1006  (((
1007 1007  (((
1008 -These commands only valid for LDDS75, as below:
954 +These commands only valid for LLDS12, as below:
1009 1009  )))
1010 1010  )))
1011 1011  
1012 1012  
1013 1013  
1014 -== 3.1  Access AT Commands ==
960 +== 4.1  Set Transmit Interval Time ==
1015 1015  
1016 -LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
962 +Feature: Change LoRaWAN End Node Transmit Interval.
1017 1017  
1018 -[[image:image-20220610172924-4.png||height="483" width="988"]]
964 +(% style="color:#037691" %)**AT Command: AT+TDC**
1019 1019  
966 +[[image:image-20220607171554-8.png]]
1020 1020  
1021 -Or if you have below board, use below connection:
1022 1022  
969 +(((
970 +(% style="color:#037691" %)**Downlink Command: 0x01**
971 +)))
1023 1023  
1024 -[[image:image-20220610172924-5.png]]
973 +(((
974 +Format: Command Code (0x01) followed by 3 bytes time value.
975 +)))
1025 1025  
977 +(((
978 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
979 +)))
1026 1026  
981 +* (((
982 +Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
983 +)))
984 +* (((
985 +Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
986 +)))
987 +
988 +== 4.2  Set Interrupt Mode ==
989 +
990 +Feature, Set Interrupt mode for GPIO_EXIT.
991 +
992 +(% style="color:#037691" %)**AT Command: AT+INTMOD**
993 +
994 +[[image:image-20220610105806-2.png]]
995 +
996 +
1027 1027  (((
1028 -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:
998 +(% style="color:#037691" %)**Downlink Command: 0x06**
1029 1029  )))
1030 1030  
1001 +(((
1002 +Format: Command Code (0x06) followed by 3 bytes.
1003 +)))
1031 1031  
1032 - [[image:image-20220610172924-6.png||height="601" width="860"]]
1005 +(((
1006 +This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1007 +)))
1033 1033  
1009 +* (((
1010 +Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1011 +)))
1012 +* (((
1013 +Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1014 +)))
1034 1034  
1016 +== 4.3  Get Firmware Version Info ==
1035 1035  
1036 -== 3.2  Set Transmit Interval Time ==
1018 +Feature: use downlink to get firmware version.
1037 1037  
1038 -Feature: Change LoRaWAN End Node Transmit Interval.
1020 +(% style="color:#037691" %)**Downlink Command: 0x26**
1039 1039  
1040 -(% style="color:#037691" %)**AT Command: AT+TDC**
1022 +[[image:image-20220607171917-10.png]]
1041 1041  
1042 -[[image:image-20220610173409-7.png]]
1024 +* Reply to the confirmation package: 26 01
1025 +* Reply to non-confirmed packet: 26 00
1043 1043  
1027 +Device will send an uplink after got this downlink command. With below payload:
1044 1044  
1029 +Configures info payload:
1030 +
1031 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
1032 +|=(((
1033 +**Size(bytes)**
1034 +)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
1035 +|**Value**|Software Type|(((
1036 +Frequency
1037 +
1038 +Band
1039 +)))|Sub-band|(((
1040 +Firmware
1041 +
1042 +Version
1043 +)))|Sensor Type|Reserve|(((
1044 +[[Message Type>>||anchor="H2.3.7A0MessageType"]]
1045 +Always 0x02
1046 +)))
1047 +
1048 +**Software Type**: Always 0x03 for LLDS12
1049 +
1050 +
1051 +**Frequency Band**:
1052 +
1053 +*0x01: EU868
1054 +
1055 +*0x02: US915
1056 +
1057 +*0x03: IN865
1058 +
1059 +*0x04: AU915
1060 +
1061 +*0x05: KZ865
1062 +
1063 +*0x06: RU864
1064 +
1065 +*0x07: AS923
1066 +
1067 +*0x08: AS923-1
1068 +
1069 +*0x09: AS923-2
1070 +
1071 +*0xa0: AS923-3
1072 +
1073 +
1074 +**Sub-Band**: value 0x00 ~~ 0x08
1075 +
1076 +
1077 +**Firmware Version**: 0x0100, Means: v1.0.0 version
1078 +
1079 +
1080 +**Sensor Type**:
1081 +
1082 +0x01: LSE01
1083 +
1084 +0x02: LDDS75
1085 +
1086 +0x03: LDDS20
1087 +
1088 +0x04: LLMS01
1089 +
1090 +0x05: LSPH01
1091 +
1092 +0x06: LSNPK01
1093 +
1094 +0x07: LLDS12
1095 +
1096 +
1097 +
1098 += 5.  Battery & How to replace =
1099 +
1100 +== 5.1  Battery Type ==
1101 +
1045 1045  (((
1046 -(% style="color:#037691" %)**Downlink Command: 0x01**
1103 +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.
1047 1047  )))
1048 1048  
1049 1049  (((
1107 +The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1108 +)))
1109 +
1110 +[[image:1654593587246-335.png]]
1111 +
1112 +
1113 +Minimum Working Voltage for the LLDS12:
1114 +
1115 +LLDS12:  2.45v ~~ 3.6v
1116 +
1117 +
1118 +
1119 +== 5.2  Replace Battery ==
1120 +
1050 1050  (((
1051 -Format: Command Code (0x01) followed by 3 bytes time value.
1122 +Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
1123 +)))
1052 1052  
1053 1053  (((
1054 -If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1126 +And make sure the positive and negative pins match.
1055 1055  )))
1056 1056  
1057 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1058 -* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1129 +
1130 +
1131 +== 5.3  Power Consumption Analyze ==
1132 +
1133 +(((
1134 +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.
1059 1059  )))
1136 +
1137 +(((
1138 +Instruction to use as below:
1060 1060  )))
1061 1061  
1062 1062  
1142 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
1063 1063  
1144 +[[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/]]
1064 1064  
1065 1065  
1066 -== 3.3  Set Interrupt Mode ==
1147 +**Step 2**: Open it and choose
1067 1067  
1068 -Feature, Set Interrupt mode for GPIO_EXIT.
1149 +* Product Model
1150 +* Uplink Interval
1151 +* Working Mode
1069 1069  
1070 -(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1153 +And the Life expectation in difference case will be shown on the right.
1071 1071  
1072 -[[image:image-20220610174917-9.png]]
1155 +[[image:1654593605679-189.png]]
1073 1073  
1074 1074  
1075 -(% style="color:#037691" %)**Downlink Command: 0x06**
1158 +The battery related documents as below:
1076 1076  
1077 -Format: Command Code (0x06) followed by 3 bytes.
1160 +* (((
1161 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1162 +)))
1163 +* (((
1164 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
1165 +)))
1166 +* (((
1167 +[[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]]
1168 +)))
1078 1078  
1170 +[[image:image-20220607172042-11.png]]
1171 +
1172 +
1173 +
1174 +=== 5.3.1  ​Battery Note ===
1175 +
1079 1079  (((
1080 -This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1177 +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.
1081 1081  )))
1082 1082  
1083 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1084 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1085 1085  
1086 -= 4.  FAQ =
1087 1087  
1088 -== 4.1  What is the frequency plan for LDDS75? ==
1182 +=== ​5.3.2  Replace the battery ===
1089 1089  
1090 -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"]]
1184 +(((
1185 +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.
1186 +)))
1091 1091  
1188 +(((
1189 +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)
1190 +)))
1092 1092  
1093 1093  
1094 -== 4.2  How to change the LoRa Frequency Bands/Region ==
1095 1095  
1096 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1097 -When downloading the images, choose the required image file for download. ​
1194 += 6.  Use AT Command =
1098 1098  
1196 +== 6.1  Access AT Commands ==
1099 1099  
1198 +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.
1100 1100  
1101 -== 4.3  Can I use LDDS75 in condensation environment? ==
1200 +[[image:1654593668970-604.png]]
1102 1102  
1103 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1202 +**Connection:**
1104 1104  
1204 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1105 1105  
1206 +(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1106 1106  
1107 -= 5.  Trouble Shooting =
1208 +(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1108 1108  
1109 -== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1110 1110  
1111 -It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1211 +(((
1212 +(((
1213 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1214 +)))
1112 1112  
1216 +(((
1217 +LLDS12 will output system info once power on as below:
1218 +)))
1219 +)))
1113 1113  
1114 -== 5.2  AT Command input doesn't work ==
1115 1115  
1222 + [[image:1654593712276-618.png]]
1223 +
1224 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1225 +
1226 +
1227 += 7.  FAQ =
1228 +
1229 +== 7.1  How to change the LoRa Frequency Bands/Region ==
1230 +
1231 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1232 +When downloading the images, choose the required image file for download. ​
1233 +
1234 +
1235 += 8.  Trouble Shooting =
1236 +
1237 +== 8.1  AT Commands input doesn’t work ==
1238 +
1239 +
1240 +(((
1116 1116  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.
1242 +)))
1117 1117  
1244 +
1245 +== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1246 +
1247 +
1118 1118  (((
1249 +(% 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.)
1250 +)))
1251 +
1252 +(((
1253 +Troubleshooting: Please avoid use of this product under such circumstance in practice.
1254 +)))
1255 +
1256 +(((
1119 1119  
1120 1120  )))
1121 1121  
1260 +(((
1261 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1262 +)))
1122 1122  
1123 -= 6.  Order Info =
1264 +(((
1265 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1266 +)))
1124 1124  
1125 1125  
1126 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1127 1127  
1270 += 9.  Order Info =
1128 1128  
1129 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1130 1130  
1131 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1132 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1133 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1134 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1135 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1136 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1137 -* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1138 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1273 +Part Number: (% style="color:blue" %)**LLDS12-XX**
1139 1139  
1140 -(% style="color:blue" %)**YY**(%%): Battery Option
1141 1141  
1142 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1143 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1276 +(% style="color:blue" %)**XX**(%%): The default frequency band
1144 1144  
1145 -= 7. ​ Packing Info =
1278 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1279 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1280 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1281 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1282 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1283 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1284 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1285 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1146 1146  
1287 += 10. ​ Packing Info =
1147 1147  
1289 +
1148 1148  **Package Includes**:
1149 1149  
1150 -* LDDS75 LoRaWAN Distance Detection Sensor x 1
1292 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1151 1151  
1152 1152  **Dimension and weight**:
1153 1153  
... ... @@ -1156,7 +1156,7 @@
1156 1156  * Package Size / pcs : cm
1157 1157  * Weight / pcs : g
1158 1158  
1159 -= 8.  ​Support =
1301 += 11.  ​Support =
1160 1160  
1161 1161  * 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.
1162 1162  * 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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