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From version 155.1
edited by Xiaoling
on 2022/06/15 09:05
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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
... ... @@ -1,85 +1,43 @@
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  
82 -
83 83  [[image:1654847051249-359.png]]
84 84  
85 85  
... ... @@ -105,11 +105,9 @@
105 105  
106 106  [[image:image-20220610154839-1.png]]
107 107  
108 -(((
109 -**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
66 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
110 110  
111 -**~ 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)**
112 -)))
68 +**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)**
113 113  
114 114  
115 115  
... ... @@ -122,10 +122,7 @@
122 122  [[image:1654852253176-749.png]]
123 123  
124 124  
125 -
126 -(((
127 127  **(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.**
128 -)))
129 129  
130 130  
131 131  [[image:1654852175653-550.png]](% style="display:none" %) ** **
... ... @@ -180,8 +180,6 @@
180 180  )))
181 181  
182 182  (((
183 -
184 -
185 185  (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
186 186  )))
187 187  
... ... @@ -192,19 +192,11 @@
192 192  [[image:image-20220607170145-1.jpeg]]
193 193  
194 194  
195 -(((
196 196  For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
197 -)))
198 198  
199 -(((
200 200  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
201 -)))
202 202  
203 -(((
204 -
205 -
206 206  **Add APP EUI in the application**
207 -)))
208 208  
209 209  [[image:image-20220610161353-4.png]]
210 210  
... ... @@ -247,15 +247,11 @@
247 247  == 2.3  ​Uplink Payload ==
248 248  
249 249  (((
250 -(((
251 251  LDDS75 will uplink payload via LoRaWAN with below payload format: 
252 -)))
253 253  
254 -(((
255 255  Uplink payload includes in total 4 bytes.
256 256  Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
257 257  )))
258 -)))
259 259  
260 260  (((
261 261  
... ... @@ -266,12 +266,12 @@
266 266  **Size (bytes)**
267 267  )))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
268 268  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
269 -[[Distance>>||anchor="H2.3.2A0Distance"]]
208 +[[Distance>>||anchor="H2.3.3A0Distance"]]
270 270  
271 271  (unit: mm)
272 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
273 -[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
274 -)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
211 +)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|(((
212 +[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]]
213 +)))|[[Sensor Flag>>path:#Sensor_Flag]]
275 275  
276 276  [[image:1654850511545-399.png]]
277 277  
... ... @@ -290,13 +290,9 @@
290 290  
291 291  === 2.3.2  Distance ===
292 292  
293 -(((
294 294  Get the distance. Flat object range 280mm - 7500mm.
295 -)))
296 296  
297 -(((
298 298  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.**
299 -)))
300 300  
301 301  
302 302  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
... ... @@ -304,7 +304,7 @@
304 304  
305 305  === 2.3.3  Interrupt Pin ===
306 306  
307 -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.
242 +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.
308 308  
309 309  **Example:**
310 310  
... ... @@ -330,18 +330,14 @@
330 330  
331 331  === 2.3.5  Sensor Flag ===
332 332  
333 -(((
334 334  0x01: Detect Ultrasonic Sensor
335 -)))
336 336  
337 -(((
338 338  0x00: No Ultrasonic Sensor
339 -)))
340 340  
341 341  
273 +===
274 +(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
342 342  
343 -=== 2.3.6  Decode payload in The Things Network ===
344 -
345 345  While using TTN network, you can add the payload format to decode the payload.
346 346  
347 347  
... ... @@ -349,9 +349,7 @@
349 349  
350 350  The payload decoder function for TTN V3 is here:
351 351  
352 -(((
353 353  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/]]
354 -)))
355 355  
356 356  
357 357  
... ... @@ -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  
... ... @@ -899,11 +899,9 @@
899 899  
900 900  [[image:image-20220610172003-1.png]]
901 901  
902 -
903 903  [[image:image-20220610172003-2.png]]
904 904  
905 905  
906 -
907 907  == 2.10  Battery Analysis ==
908 908  
909 909  === 2.10.1  Battery Type ===
... ... @@ -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]],
837 +[[ 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]],
... ... @@ -930,7 +930,7 @@
930 930  === 2.10.2  Replace the battery ===
931 931  
932 932  (((
933 -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.
853 +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.
934 934  )))
935 935  
936 936  (((
... ... @@ -938,12 +938,12 @@
938 938  )))
939 939  
940 940  (((
941 -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)
861 +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)
942 942  )))
943 943  
944 944  
945 945  
946 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
866 += 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
947 947  
948 948  (((
949 949  (((
... ... @@ -953,7 +953,7 @@
953 953  
954 954  * (((
955 955  (((
956 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
876 +AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
957 957  )))
958 958  )))
959 959  * (((
... ... @@ -1034,9 +1034,7 @@
1034 1034  [[image:image-20220610172924-5.png]]
1035 1035  
1036 1036  
1037 -(((
1038 1038  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:
1039 -)))
1040 1040  
1041 1041  
1042 1042   [[image:image-20220610172924-6.png||height="601" width="860"]]
... ... @@ -1060,19 +1060,16 @@
1060 1060  (((
1061 1061  Format: Command Code (0x01) followed by 3 bytes time value.
1062 1062  
1063 -(((
1064 1064  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1065 -)))
1066 1066  
1067 1067  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1068 1068  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1069 1069  )))
1070 -)))
1071 1071  
1072 1072  
988 +
989 +)))
1073 1073  
1074 -
1075 -
1076 1076  == 3.3  Set Interrupt Mode ==
1077 1077  
1078 1078  Feature, Set Interrupt mode for GPIO_EXIT.
... ... @@ -1079,7 +1079,7 @@
1079 1079  
1080 1080  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1081 1081  
1082 -[[image:image-20220610174917-9.png]]
997 +[[image:image-20220610105907-1.png]]
1083 1083  
1084 1084  
1085 1085  (% style="color:#037691" %)**Downlink Command: 0x06**
... ... @@ -1086,72 +1086,115 @@
1086 1086  
1087 1087  Format: Command Code (0x06) followed by 3 bytes.
1088 1088  
1089 -(((
1090 1090  This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1091 -)))
1092 1092  
1093 1093  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1094 1094  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1095 1095  
1096 -= 4.  FAQ =
1097 1097  
1098 -== 4.1  What is the frequency plan for LDDS75? ==
1099 1099  
1100 -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"]]
1101 1101  
1102 1102  
1013 += 6.  Use AT Command =
1103 1103  
1104 -== 4.2  How to change the LoRa Frequency Bands/Region ==
1015 +== 6.1  Access AT Commands ==
1105 1105  
1106 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1107 -When downloading the images, choose the required image file for download. ​
1017 +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.
1108 1108  
1019 +[[image:1654593668970-604.png]]
1109 1109  
1021 +**Connection:**
1110 1110  
1111 -== 4.3  Can I use LDDS75 in condensation environment? ==
1023 +(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1112 1112  
1113 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1025 +(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1114 1114  
1027 +(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1115 1115  
1116 1116  
1117 -= 5.  Trouble Shooting =
1030 +(((
1031 +(((
1032 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1033 +)))
1118 1118  
1119 -== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1035 +(((
1036 +LLDS12 will output system info once power on as below:
1037 +)))
1038 +)))
1120 1120  
1121 -It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1122 1122  
1041 + [[image:1654593712276-618.png]]
1123 1123  
1124 -== 5.2  AT Command input doesn't work ==
1043 +Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1125 1125  
1045 +
1046 += 7.  FAQ =
1047 +
1048 +== 7.1  How to change the LoRa Frequency Bands/Region ==
1049 +
1050 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1051 +When downloading the images, choose the required image file for download. ​
1052 +
1053 +
1054 += 8.  Trouble Shooting =
1055 +
1056 +== 8.1  AT Commands input doesn’t work ==
1057 +
1058 +
1059 +(((
1126 1126  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.
1061 +)))
1127 1127  
1063 +
1064 +== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
1065 +
1066 +
1128 1128  (((
1068 +(% 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.)
1069 +)))
1070 +
1071 +(((
1072 +Troubleshooting: Please avoid use of this product under such circumstance in practice.
1073 +)))
1074 +
1075 +(((
1129 1129  
1130 1130  )))
1131 1131  
1079 +(((
1080 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
1081 +)))
1132 1132  
1083 +(((
1084 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1085 +)))
1086 +
1087 +
1088 +
1133 1133  = 6.  Order Info =
1134 1134  
1135 1135  
1136 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1092 +Part Number: (% style="color:blue" %)**LDDS75-XX-YY**
1137 1137  
1138 1138  
1139 -(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1095 +(% style="color:blue" %)**XX**(%%): The default frequency band
1140 1140  
1141 -* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1142 -* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1143 -* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1144 -* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1145 -* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1146 -* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1147 -* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1148 -* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1097 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1098 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1099 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1100 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1101 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1102 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1103 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1104 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1149 1149  
1150 1150  (% style="color:blue" %)**YY**(%%): Battery Option
1151 1151  
1152 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1153 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1108 +* **(% style="color:red" %)4**(%%): 4000mAh battery
1109 +* **(% style="color:red" %)8**(%%): 8500mAh battery
1154 1154  
1111 +
1112 +
1155 1155  = 7. ​ Packing Info =
1156 1156  
1157 1157  
... ... @@ -1166,6 +1166,8 @@
1166 1166  * Package Size / pcs : cm
1167 1167  * Weight / pcs : g
1168 1168  
1127 +
1128 +
1169 1169  = 8.  ​Support =
1170 1170  
1171 1171  * 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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