Last modified by Mengting Qiu on 2025/02/26 15:04
<
From version < 154.2 >
edited by Xiaoling
on 2022/06/11 10:01
To version < 158.13 >
edited by Xiaoling
on 2022/06/11 10:42
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Summary

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Content
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3 3  
4 4  **Contents:**
5 5  
6 -{{toc/}}
7 7  
8 8  
9 9  
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21 21  
22 22  (((
23 23  (((
24 -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.
23 +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 25  )))
26 26  
27 27  (((
... ... @@ -37,7 +37,7 @@
37 37  )))
38 38  
39 39  (((
40 -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.
39 +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 41  )))
42 42  
43 43  (((
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45 45  )))
46 46  
47 47  (((
48 -LDDS75 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
47 +LDDS45 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
49 49  )))
50 50  
51 51  (((
... ... @@ -53,7 +53,7 @@
53 53  )))
54 54  
55 55  (((
56 -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.
55 +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 57  )))
58 58  
59 59  (((
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76 76  == ​1.2  Features ==
77 77  
78 78  * LoRaWAN 1.0.3 Class A
79 -* Ultra low power consumption
78 +* Ultra-low power consumption
80 80  * Distance Detection by Ultrasonic technology
81 -* Flat object range 280mm - 7500mm
80 +* Flat object range 30mm - 4500mm
82 82  * Accuracy: ±(1cm+S*0.3%) (S: Distance)
82 +* Measure Angle: 60°
83 83  * Cable Length : 25cm
84 84  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
85 85  * AT Commands to change parameters
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86 86  * Uplink on periodically
87 87  * Downlink to change configure
88 88  * IP66 Waterproof Enclosure
89 -* 4000mAh or 8500mAh Battery for long term use
89 +* 8500mAh Battery for long term use
90 90  
91 91  
92 -
93 93  == 1.3  Specification ==
94 94  
95 95  === 1.3.1  Rated environmental conditions ===
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96 96  
97 97  [[image:image-20220610154839-1.png]]
98 98  
98 +
99 99  (((
100 -**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)**
100 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
101 +
102 +**~ 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)**
101 101  )))
102 102  
103 103  
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134 134  * Bottom water level monitoring
135 135  
136 136  
137 -
138 138  == 1.6  Pin mapping and power on ==
139 139  
140 140  
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142 142  
143 143  
144 144  
145 -= 2.  Configure LDDS75 to connect to LoRaWAN network =
146 += 2.  Configure LDDS45 to connect to LoRaWAN network =
146 146  
147 147  == 2.1  How it works ==
148 148  
149 149  (((
150 -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
151 +The LDDS45 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 value
151 151  )))
152 152  
153 153  (((
154 -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.
155 +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 LDDS45.
155 155  )))
156 156  
157 157  
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160 160  
161 161  (((
162 162  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.
164 +
165 +
163 163  )))
164 164  
168 +[[image:1654913911773-521.png]]
169 +
170 +
165 165  (((
166 -[[image:1654848616367-242.png]]
172 +
167 167  )))
168 168  
169 169  (((
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171 171  )))
172 172  
173 173  (((
174 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
180 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS45.
175 175  )))
176 176  
177 177  (((
178 -Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
184 +Each LDDS45 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
179 179  )))
180 180  
181 181  [[image:image-20220607170145-1.jpeg]]
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202 202  
203 203  [[image:image-20220610161353-7.png]]
204 204  
211 +**Choose LDDS75 instead of LDDS45 is ok. They are of the same payload**
205 205  
213 +
214 +
206 206  You can also choose to create the device manually.
207 207  
208 208   [[image:image-20220610161538-8.png]]
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215 215  
216 216  
217 217  
218 -(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
227 +(% style="color:blue" %)**Step 2**(%%): Power on LDDS45
219 219  
220 220  
221 221  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
222 222  
223 -[[image:image-20220610161724-10.png]]
232 +[[image:image-20220611102908-2.png]]
224 224  
225 225  
226 226  (((
227 -(% style="color:blue" %)**Step 3**(%%)**:** The LDDS75 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
236 +(% style="color:blue" %)**Step 3**(%%)**:** The LDDS45 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
228 228  )))
229 229  
230 230  [[image:1654849068701-275.png]]
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235 235  
236 236  (((
237 237  (((
238 -LDDS75 will uplink payload via LoRaWAN with below payload format: 
239 -)))
247 +LDDS45 will uplink payload via LoRaWAN with below payload format: 
240 240  
241 -(((
242 -Uplink payload includes in total 4 bytes.
243 -Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
249 +Uplink payload includes in total 8 bytes.
244 244  )))
245 245  )))
246 246  
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267 267  === 2.3.1  Battery Info ===
268 268  
269 269  
270 -Check the battery voltage for LDDS75.
276 +Check the battery voltage for LDDS45.
271 271  
272 272  Ex1: 0x0B45 = 2885mV
273 273  
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278 278  === 2.3.2  Distance ===
279 279  
280 280  (((
281 -Get the distance. Flat object range 280mm - 7500mm.
287 +Get the distance. Flat object range 30mm - 4500mm.
282 282  )))
283 283  
284 284  (((
285 -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.**
291 +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.**
286 286  )))
287 287  
288 288  
289 289  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
290 -* 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.
296 +* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
291 291  
292 292  
293 -
294 294  === 2.3.3  Interrupt Pin ===
295 295  
296 -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.
301 +This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.3A0SetInterruptMode"]] for the hardware and software set up.
297 297  
298 298  **Example:**
299 299  
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313 313  
314 314  If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
315 315  
316 -(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
317 317  
318 318  
319 -
320 320  === 2.3.5  Sensor Flag ===
321 321  
322 322  (((
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339 339  The payload decoder function for TTN V3 is here:
340 340  
341 341  (((
342 -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/]]
345 +LDDS45 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/]]
343 343  )))
344 344  
345 345  
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346 346  
347 347  == 2.4  Uplink Interval ==
348 348  
349 -The LDDS75 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
352 +The LDDS45 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
350 350  
351 351  
352 352  
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377 377  
378 378  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
379 379  
380 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
383 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS45 and add DevEUI.**
381 381  
382 382  [[image:1654851029373-510.png]]
383 383  
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867 867  * Blink once when device transmit a packet.
868 868  
869 869  
870 -
871 871  == 2.8  ​Firmware Change Log ==
872 872  
873 873  
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1085 1085  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1086 1086  
1087 1087  
1088 -
1089 1089  = 4.  FAQ =
1090 1090  
1091 1091  == 4.1  What is the frequency plan for LDDS75? ==
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1146 1146  * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1147 1147  
1148 1148  
1149 -
1150 1150  = 7. ​ Packing Info =
1151 1151  
1152 1152  
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1162 1162  * Weight / pcs : g
1163 1163  
1164 1164  
1165 -
1166 1166  = 8.  ​Support =
1167 1167  
1168 1168  * 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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