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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 151.11
edited by Xiaoling
on 2022/06/11 09:38
Change comment: There is no comment for this version
To version 173.5
edited by Xiaoling
on 2022/06/15 10:15
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -LDDS75 - LoRaWAN Distance Detection Sensor User Manual
1 +LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual
Content
... ... @@ -1,11 +1,10 @@
1 1  (% style="text-align:center" %)
2 -[[image:1654846127817-788.png]]
2 +[[image:1655254599445-662.png]]
3 3  
4 -**Contents:**
5 5  
6 -{{toc/}}
7 7  
8 8  
7 +**Table of Contents:**
9 9  
10 10  
11 11  
... ... @@ -12,9 +12,11 @@
12 12  
13 13  
14 14  
14 +
15 +
15 15  = 1.  Introduction =
16 16  
17 -== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
18 +== 1.1 ​ What is LoRaWAN Ultrasonic liquid level Sensor ==
18 18  
19 19  (((
20 20  
... ... @@ -21,7 +21,8 @@
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.
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
25 25  )))
26 26  
27 27  (((
... ... @@ -29,7 +29,7 @@
29 29  )))
30 30  
31 31  (((
32 -It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
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**. 
33 33  )))
34 34  
35 35  (((
... ... @@ -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.
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.
41 41  )))
42 42  
43 43  (((
... ... @@ -45,7 +45,7 @@
45 45  )))
46 46  
47 47  (((
48 -LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
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.
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.
58 +LDDS20 is powered by (% style="color:#4472c4" %)**8500mA Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
57 57  )))
58 58  
59 59  (((
... ... @@ -61,13 +61,24 @@
61 61  )))
62 62  
63 63  (((
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.
67 +)))
68 +
69 +(((
70 +
71 +)))
72 +)))
73 +
74 +(((
75 +(((
64 64  (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
65 65  )))
66 66  )))
67 67  )))
80 +)))
68 68  
69 69  
70 -[[image:1654847051249-359.png]]
83 +[[image:1655255122126-327.png]]
71 71  
72 72  
73 73  
... ... @@ -75,9 +75,10 @@
75 75  
76 76  * LoRaWAN 1.0.3 Class A
77 77  * Ultra low power consumption
78 -* Distance Detection by Ultrasonic technology
79 -* Flat object range 280mm - 7500mm
80 -* Accuracy: ±(1cm+S*0.3%) (S: Distance)
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)
81 81  * Cable Length : 25cm
82 82  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
83 83  * AT Commands to change parameters
... ... @@ -84,76 +84,130 @@
84 84  * Uplink on periodically
85 85  * Downlink to change configure
86 86  * IP66 Waterproof Enclosure
87 -* 4000mAh or 8500mAh Battery for long term use
101 +* 8500mAh Battery for long term use
88 88  
103 +== 1.3  Suitable Container & Liquid ==
89 89  
105 +* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
106 +* Container shape is regular, and surface is smooth.
107 +* Container Thickness:
108 +** Pure metal material.  2~~8mm, best is 3~~5mm
109 +** Pure non metal material: <10 mm
110 +* Pure liquid without irregular deposition.
90 90  
112 +== 1.4  Mechanical ==
91 91  
114 +[[image:image-20220615090910-1.png]]
92 92  
93 -== 1.3  Specification ==
94 94  
95 -=== 1.3.1  Rated environmental conditions ===
117 +[[image:image-20220615090910-2.png]]
96 96  
97 -[[image:image-20220610154839-1.png]]
98 98  
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)**
101 -)))
102 102  
121 +== 1.5  Install LDDS20 ==
103 103  
104 104  
105 -=== 1.3.2  Effective measurement range Reference beam pattern ===
124 +(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
106 106  
107 -**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
126 +LDDS20 (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
108 108  
128 +[[image:image-20220615091045-3.png]]
109 109  
110 110  
111 -[[image:1654852253176-749.png]]
112 112  
132 +(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
113 113  
134 +For Metal Surface with paint, it is important to polish the surface, first use crude sand paper to polish the paint level , then use exquisite sand paper to polish the metal level to make it shine & smooth.
114 114  
115 -(((
116 -**(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.**
117 -)))
136 +[[image:image-20220615092010-11.png]]
118 118  
119 119  
120 -[[image:1654852175653-550.png]](% style="display:none" %) ** **
139 +No polish needed if the container is shine metal surface without paint or non-metal container.
121 121  
141 +[[image:image-20220615092044-12.png]]
122 122  
123 123  
124 -== 1.5 ​ Applications ==
125 125  
126 -* Horizontal distance measurement
127 -* Liquid level measurement
128 -* Parking management system
129 -* Object proximity and presence detection
130 -* Intelligent trash can management system
131 -* Robot obstacle avoidance
132 -* Automatic control
133 -* Sewer
134 -* Bottom water level monitoring
145 +(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
135 135  
147 +Power on LDDS75, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
136 136  
137 137  
150 +It is necessary to put the coupling paste between the sensor and the container, otherwise LDDS20 won’t detect the liquid level.
138 138  
152 +[[image:1655256160324-178.png]][[image:image-20220615092327-13.png]]
139 139  
140 -== 1.6  Pin mapping and power on ==
141 141  
155 +After paste the LDDS20 well, power on LDDS20. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life.
142 142  
143 -[[image:1654847583902-256.png]]
144 144  
158 +(% style="color:red" %)**LED Status:**
145 145  
160 +* Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
146 146  
147 -= 2.  Configure LDDS75 to connect to LoRaWAN network =
162 +* (% style="color:blue" %)BLUE LED(% style="color:red" %) always ON(%%): Sensor is power on but doesn’t detect liquid. There is problem in installation point.
163 +* (% style="color:blue" %)BLUE LED(% style="color:red" %) slowly blinking(%%): Sensor detects Liquid Level, The installation point is good.
148 148  
165 +LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
166 +
167 +
168 +(% style="color:red" %)**Note 2:**
169 +
170 +(% style="color:red" %)Ultrasonic coupling paste (%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
171 +
172 +
173 +
174 +(% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
175 +
176 +Prepare Eproxy AB glue.
177 +
178 +Put Eproxy AB glue in the sensor and press it hard on the container installation point.
179 +
180 +Reset LDDS20 and see if the BLUE LED is slowly blinking.
181 +
182 +[[image:image-20220615091045-8.png||height="226" width="380"]] [[image:image-20220615091045-9.png||height="239" width="339"]]
183 +
184 +
185 +(% style="color:red" %)**Note 1:**
186 +
187 +Eproxy AB glue needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
188 +
189 +
190 +(% style="color:red" %)**Note 2:**
191 +
192 +(% style="color:red" %)Eproxy AB glue(%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
193 +
194 +
195 +
196 +== 1.6 ​ Applications ==
197 +
198 +* Smart liquid control solution.
199 +* Smart liquefied gas solution.
200 +
201 +== 1.7  Precautions ==
202 +
203 +* At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
204 +* For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
205 +* When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.
206 +
207 +== 1.8  Pin mapping and power on ==
208 +
209 +
210 +[[image:1655257026882-201.png]]
211 +
212 +
213 +
214 += 2.  Configure LDDS20 to connect to LoRaWAN network =
215 +
216 +
149 149  == 2.1  How it works ==
150 150  
151 151  (((
152 -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
220 +The LDDS20 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 LDDS20. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value.
153 153  )))
154 154  
155 155  (((
156 -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.
224 +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.A0UsingtheATCommands"]]to set the keys in the LDDS20.
157 157  )))
158 158  
159 159  
... ... @@ -165,7 +165,7 @@
165 165  )))
166 166  
167 167  (((
168 -[[image:1654848616367-242.png]]
236 +[[image:1655257698953-697.png]]
169 169  )))
170 170  
171 171  (((
... ... @@ -173,11 +173,13 @@
173 173  )))
174 174  
175 175  (((
176 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
244 +
245 +
246 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS20.
177 177  )))
178 178  
179 179  (((
180 -Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
250 +Each LDDS20 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
181 181  )))
182 182  
183 183  [[image:image-20220607170145-1.jpeg]]
... ... @@ -192,6 +192,8 @@
192 192  )))
193 193  
194 194  (((
265 +
266 +
195 195  **Add APP EUI in the application**
196 196  )))
197 197  
... ... @@ -205,6 +205,7 @@
205 205  [[image:image-20220610161353-7.png]]
206 206  
207 207  
280 +
208 208  You can also choose to create the device manually.
209 209  
210 210   [[image:image-20220610161538-8.png]]
... ... @@ -217,16 +217,17 @@
217 217  
218 218  
219 219  
220 -(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
293 +(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
221 221  
222 222  
223 223  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
224 224  
225 -[[image:image-20220610161724-10.png]]
298 +[[image:image-20220615095102-14.png]]
226 226  
227 227  
301 +
228 228  (((
229 -(% 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.
303 +(% style="color:blue" %)**Step 3**(%%)**:**  The LDDS20 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.
230 230  )))
231 231  
232 232  [[image:1654849068701-275.png]]
... ... @@ -237,12 +237,10 @@
237 237  
238 238  (((
239 239  (((
240 -LDDS75 will uplink payload via LoRaWAN with below payload format: 
241 -)))
314 +LDDS20 will uplink payload via LoRaWAN with below payload format: 
242 242  
243 -(((
244 -Uplink payload includes in total 4 bytes.
245 -Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
316 +Uplink payload includes in total 8 bytes.
317 +Payload for firmware version v1.1.4. . Before v1.1.3, there is only 5 bytes: BAT and Distance(Please check manual v1.2.0 if you have 5 bytes payload).
246 246  )))
247 247  )))
248 248  
... ... @@ -269,7 +269,7 @@
269 269  === 2.3.1  Battery Info ===
270 270  
271 271  
272 -Check the battery voltage for LDDS75.
344 +Check the battery voltage for LDDS20.
273 273  
274 274  Ex1: 0x0B45 = 2885mV
275 275  
... ... @@ -280,24 +280,19 @@
280 280  === 2.3.2  Distance ===
281 281  
282 282  (((
283 -Get the distance. Flat object range 280mm - 7500mm.
355 +Get the distance. Flat object range 20mm - 2000mm.
284 284  )))
285 285  
286 286  (((
287 -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.**
359 +For example, if the data you get from the register is __0x06 0x05__, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0605(H) = 1541 (D) = 1541 mm.**
288 288  )))
289 289  
362 +* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
363 +* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
290 290  
291 -* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
292 -* 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.
293 -
294 -
295 -
296 -
297 -
298 298  === 2.3.3  Interrupt Pin ===
299 299  
300 -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.
367 +This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.2A0SetInterruptMode"]] for the hardware and software set up.
301 301  
302 302  **Example:**
303 303  
... ... @@ -343,537 +343,92 @@
343 343  The payload decoder function for TTN V3 is here:
344 344  
345 345  (((
346 -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/]]
413 +LDDS20 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS20/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
347 347  )))
348 348  
349 349  
350 350  
351 -== 2.4  Uplink Interval ==
418 +== 2.4  Downlink Payload ==
352 352  
353 -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"]]
420 +By default, LDDS20 prints the downlink payload to console port.
354 354  
422 +[[image:image-20220615100930-15.png]]
355 355  
356 356  
357 -== 2.5  ​Show Data in DataCake IoT Server ==
425 +**Examples:**
358 358  
359 -(((
360 -[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
361 -)))
362 362  
363 -(((
364 -
365 -)))
428 +* (% style="color:blue" %)**Set TDC**
366 366  
367 -(((
368 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
369 -)))
430 +If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
370 370  
371 -(((
372 -(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
373 -)))
432 +Payload:    01 00 00 1E    TDC=30S
374 374  
434 +Payload:    01 00 00 3C    TDC=60S
375 375  
376 -[[image:1654592790040-760.png]]
377 377  
437 +* (% style="color:blue" %)**Reset**
378 378  
379 -[[image:1654592800389-571.png]]
439 +If payload = 0x04FF, it will reset the LDDS20
380 380  
381 381  
382 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
442 +* (% style="color:blue" %)**CFM**
383 383  
384 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
444 +Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
385 385  
386 -[[image:1654851029373-510.png]]
387 387  
388 388  
389 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
448 +== 2.5  ​Show Data in DataCake IoT Server ==
390 390  
391 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
392 -
393 -
394 -
395 -== 2.6  Frequency Plans ==
396 -
397 397  (((
398 -The LDDS75 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
451 +[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
399 399  )))
400 400  
401 -
402 -
403 -=== 2.6.1  EU863-870 (EU868) ===
404 -
405 405  (((
406 -(% style="color:blue" %)**Uplink:**
407 -)))
408 -
409 -(((
410 -868.1 - SF7BW125 to SF12BW125
411 -)))
412 -
413 -(((
414 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
415 -)))
416 -
417 -(((
418 -868.5 - SF7BW125 to SF12BW125
419 -)))
420 -
421 -(((
422 -867.1 - SF7BW125 to SF12BW125
423 -)))
424 -
425 -(((
426 -867.3 - SF7BW125 to SF12BW125
427 -)))
428 -
429 -(((
430 -867.5 - SF7BW125 to SF12BW125
431 -)))
432 -
433 -(((
434 -867.7 - SF7BW125 to SF12BW125
435 -)))
436 -
437 -(((
438 -867.9 - SF7BW125 to SF12BW125
439 -)))
440 -
441 -(((
442 -868.8 - FSK
443 -)))
444 -
445 -(((
446 446  
447 447  )))
448 448  
449 449  (((
450 -(% style="color:blue" %)**Downlink:**
459 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
451 451  )))
452 452  
453 453  (((
454 -Uplink channels 1-9 (RX1)
463 +(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
455 455  )))
456 456  
457 -(((
458 -869.525 - SF9BW125 (RX2 downlink only)
459 -)))
460 460  
467 +[[image:1654592790040-760.png]]
461 461  
462 462  
463 -=== 2.6.2  US902-928(US915) ===
470 +[[image:1654592800389-571.png]]
464 464  
465 -(((
466 -Used in USA, Canada and South America. Default use CHE=2
467 467  
468 -(% style="color:blue" %)**Uplink:**
473 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
469 469  
470 -903.9 - SF7BW125 to SF10BW125
475 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
471 471  
472 -904.1 - SF7BW125 to SF10BW125
477 +[[image:1654851029373-510.png]]
473 473  
474 -904.3 - SF7BW125 to SF10BW125
475 475  
476 -904.5 - SF7BW125 to SF10BW125
480 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
477 477  
478 -904.7 - SF7BW125 to SF10BW125
482 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
479 479  
480 -904.9 - SF7BW125 to SF10BW125
481 481  
482 -905.1 - SF7BW125 to SF10BW125
483 483  
484 -905.3 - SF7BW125 to SF10BW125
486 +== 2.6  LED Indicator ==
485 485  
488 +The LDDS20 has an internal LED which is to show the status of different state.
486 486  
487 -(% style="color:blue" %)**Downlink:**
488 488  
489 -923.3 - SF7BW500 to SF12BW500
490 -
491 -923.9 - SF7BW500 to SF12BW500
492 -
493 -924.5 - SF7BW500 to SF12BW500
494 -
495 -925.1 - SF7BW500 to SF12BW500
496 -
497 -925.7 - SF7BW500 to SF12BW500
498 -
499 -926.3 - SF7BW500 to SF12BW500
500 -
501 -926.9 - SF7BW500 to SF12BW500
502 -
503 -927.5 - SF7BW500 to SF12BW500
504 -
505 -923.3 - SF12BW500(RX2 downlink only)
506 -
507 -
508 -
509 -)))
510 -
511 -=== 2.6.3  CN470-510 (CN470) ===
512 -
513 -(((
514 -Used in China, Default use CHE=1
515 -)))
516 -
517 -(((
518 -(% style="color:blue" %)**Uplink:**
519 -)))
520 -
521 -(((
522 -486.3 - SF7BW125 to SF12BW125
523 -)))
524 -
525 -(((
526 -486.5 - SF7BW125 to SF12BW125
527 -)))
528 -
529 -(((
530 -486.7 - SF7BW125 to SF12BW125
531 -)))
532 -
533 -(((
534 -486.9 - SF7BW125 to SF12BW125
535 -)))
536 -
537 -(((
538 -487.1 - SF7BW125 to SF12BW125
539 -)))
540 -
541 -(((
542 -487.3 - SF7BW125 to SF12BW125
543 -)))
544 -
545 -(((
546 -487.5 - SF7BW125 to SF12BW125
547 -)))
548 -
549 -(((
550 -487.7 - SF7BW125 to SF12BW125
551 -)))
552 -
553 -(((
554 -
555 -)))
556 -
557 -(((
558 -(% style="color:blue" %)**Downlink:**
559 -)))
560 -
561 -(((
562 -506.7 - SF7BW125 to SF12BW125
563 -)))
564 -
565 -(((
566 -506.9 - SF7BW125 to SF12BW125
567 -)))
568 -
569 -(((
570 -507.1 - SF7BW125 to SF12BW125
571 -)))
572 -
573 -(((
574 -507.3 - SF7BW125 to SF12BW125
575 -)))
576 -
577 -(((
578 -507.5 - SF7BW125 to SF12BW125
579 -)))
580 -
581 -(((
582 -507.7 - SF7BW125 to SF12BW125
583 -)))
584 -
585 -(((
586 -507.9 - SF7BW125 to SF12BW125
587 -)))
588 -
589 -(((
590 -508.1 - SF7BW125 to SF12BW125
591 -)))
592 -
593 -(((
594 -505.3 - SF12BW125 (RX2 downlink only)
595 -)))
596 -
597 -
598 -
599 -=== 2.6.4  AU915-928(AU915) ===
600 -
601 -(((
602 -Default use CHE=2
603 -
604 -(% style="color:blue" %)**Uplink:**
605 -
606 -916.8 - SF7BW125 to SF12BW125
607 -
608 -917.0 - SF7BW125 to SF12BW125
609 -
610 -917.2 - SF7BW125 to SF12BW125
611 -
612 -917.4 - SF7BW125 to SF12BW125
613 -
614 -917.6 - SF7BW125 to SF12BW125
615 -
616 -917.8 - SF7BW125 to SF12BW125
617 -
618 -918.0 - SF7BW125 to SF12BW125
619 -
620 -918.2 - SF7BW125 to SF12BW125
621 -
622 -
623 -(% style="color:blue" %)**Downlink:**
624 -
625 -923.3 - SF7BW500 to SF12BW500
626 -
627 -923.9 - SF7BW500 to SF12BW500
628 -
629 -924.5 - SF7BW500 to SF12BW500
630 -
631 -925.1 - SF7BW500 to SF12BW500
632 -
633 -925.7 - SF7BW500 to SF12BW500
634 -
635 -926.3 - SF7BW500 to SF12BW500
636 -
637 -926.9 - SF7BW500 to SF12BW500
638 -
639 -927.5 - SF7BW500 to SF12BW500
640 -
641 -923.3 - SF12BW500(RX2 downlink only)
642 -
643 -
644 -
645 -)))
646 -
647 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
648 -
649 -(((
650 -(% style="color:blue" %)**Default Uplink channel:**
651 -)))
652 -
653 -(((
654 -923.2 - SF7BW125 to SF10BW125
655 -)))
656 -
657 -(((
658 -923.4 - SF7BW125 to SF10BW125
659 -)))
660 -
661 -(((
662 -
663 -)))
664 -
665 -(((
666 -(% style="color:blue" %)**Additional Uplink Channel**:
667 -)))
668 -
669 -(((
670 -(OTAA mode, channel added by JoinAccept message)
671 -)))
672 -
673 -(((
674 -
675 -)))
676 -
677 -(((
678 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
679 -)))
680 -
681 -(((
682 -922.2 - SF7BW125 to SF10BW125
683 -)))
684 -
685 -(((
686 -922.4 - SF7BW125 to SF10BW125
687 -)))
688 -
689 -(((
690 -922.6 - SF7BW125 to SF10BW125
691 -)))
692 -
693 -(((
694 -922.8 - SF7BW125 to SF10BW125
695 -)))
696 -
697 -(((
698 -923.0 - SF7BW125 to SF10BW125
699 -)))
700 -
701 -(((
702 -922.0 - SF7BW125 to SF10BW125
703 -)))
704 -
705 -(((
706 -
707 -)))
708 -
709 -(((
710 -(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
711 -)))
712 -
713 -(((
714 -923.6 - SF7BW125 to SF10BW125
715 -)))
716 -
717 -(((
718 -923.8 - SF7BW125 to SF10BW125
719 -)))
720 -
721 -(((
722 -924.0 - SF7BW125 to SF10BW125
723 -)))
724 -
725 -(((
726 -924.2 - SF7BW125 to SF10BW125
727 -)))
728 -
729 -(((
730 -924.4 - SF7BW125 to SF10BW125
731 -)))
732 -
733 -(((
734 -924.6 - SF7BW125 to SF10BW125
735 -)))
736 -
737 -(((
738 -
739 -)))
740 -
741 -(((
742 -(% style="color:blue" %)**Downlink:**
743 -)))
744 -
745 -(((
746 -Uplink channels 1-8 (RX1)
747 -)))
748 -
749 -(((
750 -923.2 - SF10BW125 (RX2)
751 -)))
752 -
753 -
754 -
755 -=== 2.6.6  KR920-923 (KR920) ===
756 -
757 -(((
758 -(% style="color:blue" %)**Default channel:**
759 -)))
760 -
761 -(((
762 -922.1 - SF7BW125 to SF12BW125
763 -)))
764 -
765 -(((
766 -922.3 - SF7BW125 to SF12BW125
767 -)))
768 -
769 -(((
770 -922.5 - SF7BW125 to SF12BW125
771 -)))
772 -
773 -(((
774 -
775 -)))
776 -
777 -(((
778 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
779 -)))
780 -
781 -(((
782 -922.1 - SF7BW125 to SF12BW125
783 -)))
784 -
785 -(((
786 -922.3 - SF7BW125 to SF12BW125
787 -)))
788 -
789 -(((
790 -922.5 - SF7BW125 to SF12BW125
791 -)))
792 -
793 -(((
794 -922.7 - SF7BW125 to SF12BW125
795 -)))
796 -
797 -(((
798 -922.9 - SF7BW125 to SF12BW125
799 -)))
800 -
801 -(((
802 -923.1 - SF7BW125 to SF12BW125
803 -)))
804 -
805 -(((
806 -923.3 - SF7BW125 to SF12BW125
807 -)))
808 -
809 -(((
810 -
811 -)))
812 -
813 -(((
814 -(% style="color:blue" %)**Downlink:**
815 -)))
816 -
817 -(((
818 -Uplink channels 1-7(RX1)
819 -)))
820 -
821 -(((
822 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
823 -)))
824 -
825 -
826 -
827 -=== 2.6.7  IN865-867 (IN865) ===
828 -
829 -(((
830 -(% style="color:blue" %)**Uplink:**
831 -)))
832 -
833 -(((
834 -865.0625 - SF7BW125 to SF12BW125
835 -)))
836 -
837 -(((
838 -865.4025 - SF7BW125 to SF12BW125
839 -)))
840 -
841 -(((
842 -865.9850 - SF7BW125 to SF12BW125
843 -)))
844 -
845 -(((
846 -
847 -)))
848 -
849 -(((
850 -(% style="color:blue" %)**Downlink:**
851 -)))
852 -
853 -(((
854 -Uplink channels 1-3 (RX1)
855 -)))
856 -
857 -(((
858 -866.550 - SF10BW125 (RX2)
859 -)))
860 -
861 -
862 -
863 -== 2.7  LED Indicator ==
864 -
865 -The LDDS75 has an internal LED which is to show the status of different state.
866 -
867 -
868 868  * Blink once when device power on.
869 869  * The device detects the sensor and flashes 5 times.
870 870  * Solid ON for 5 seconds once device successful Join the network.
871 -* Blink once when device transmit a packet.
872 872  
495 +Blink once when device transmit a packet.
873 873  
874 874  
875 875  
876 -
877 877  == 2.8  ​Firmware Change Log ==
878 878  
879 879  
... ... @@ -1064,7 +1064,6 @@
1064 1064  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1065 1065  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1066 1066  )))
1067 -
1068 1068  )))
1069 1069  
1070 1070  
... ... @@ -1091,10 +1091,6 @@
1091 1091  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1092 1092  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1093 1093  
1094 -
1095 -
1096 -
1097 -
1098 1098  = 4.  FAQ =
1099 1099  
1100 1100  == 4.1  What is the frequency plan for LDDS75? ==
... ... @@ -1154,7 +1154,6 @@
1154 1154  * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1155 1155  * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1156 1156  
1157 -
1158 1158  = 7. ​ Packing Info =
1159 1159  
1160 1160  
... ... @@ -1169,7 +1169,6 @@
1169 1169  * Package Size / pcs : cm
1170 1170  * Weight / pcs : g
1171 1171  
1172 -
1173 1173  = 8.  ​Support =
1174 1174  
1175 1175  * 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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