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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 173.5
edited by Xiaoling
on 2022/06/15 10:15
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To version 154.1
edited by Xiaoling
on 2022/06/15 08:56
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Summary

Details

Page properties
Title
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1 -LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual
1 +LDDS20 - LoRaWAN Liquid Level Sensor User Manual
Content
... ... @@ -1,11 +1,13 @@
1 1  (% style="text-align:center" %)
2 -[[image:1655254599445-662.png]]
2 +[[image:1654846127817-788.png]]
3 3  
4 4  
5 5  
6 6  
7 +
7 7  **Table of Contents:**
8 8  
10 +{{toc/}}
9 9  
10 10  
11 11  
... ... @@ -13,9 +13,10 @@
13 13  
14 14  
15 15  
18 +
16 16  = 1.  Introduction =
17 17  
18 -== 1.1 ​ What is LoRaWAN Ultrasonic liquid level Sensor ==
21 +== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
19 19  
20 20  (((
21 21  
... ... @@ -22,65 +22,33 @@
22 22  
23 23  (((
24 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
28 +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.
27 27  )))
28 28  
29 29  (((
30 -
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.
31 31  )))
32 32  
33 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**. 
36 +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.
35 35  )))
36 36  
37 37  (((
38 -
40 +LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
39 39  )))
40 40  
41 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.
44 +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.
43 43  )))
44 44  
45 45  (((
46 -
47 -)))
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 -)))
52 -
53 -(((
54 -
55 -)))
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 -)))
60 -
61 -(((
62 -
63 -)))
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.
67 -)))
68 -
69 -(((
70 -
71 -)))
72 -)))
73 -
74 -(((
75 -(((
76 76  (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
77 77  )))
78 78  )))
79 79  )))
80 -)))
81 81  
82 82  
83 -[[image:1655255122126-327.png]]
54 +[[image:1654847051249-359.png]]
84 84  
85 85  
86 86  
... ... @@ -88,10 +88,9 @@
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)
62 +* Distance Detection by Ultrasonic technology
63 +* Flat object range 280mm - 7500mm
64 +* 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
... ... @@ -98,130 +98,74 @@
98 98  * Uplink on periodically
99 99  * Downlink to change configure
100 100  * IP66 Waterproof Enclosure
101 -* 8500mAh Battery for long term use
71 +* 4000mAh or 8500mAh Battery for long term use
102 102  
103 -== 1.3  Suitable Container & Liquid ==
104 104  
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.
111 111  
112 -== 1.4  Mechanical ==
75 +== 1.3  Specification ==
113 113  
114 -[[image:image-20220615090910-1.png]]
77 +=== 1.3.1  Rated environmental conditions ===
115 115  
79 +[[image:image-20220610154839-1.png]]
116 116  
117 -[[image:image-20220615090910-2.png]]
81 +(((
82 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  **
118 118  
84 +**~ 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)**
85 +)))
119 119  
120 120  
121 -== 1.5  Install LDDS20 ==
122 122  
89 +=== 1.3.2  Effective measurement range Reference beam pattern ===
123 123  
124 -(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
91 +**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
125 125  
126 -LDDS20 (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
127 127  
128 -[[image:image-20220615091045-3.png]]
129 129  
95 +[[image:1654852253176-749.png]]
130 130  
131 131  
132 -(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
133 133  
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.
99 +(((
100 +**(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.**
101 +)))
135 135  
136 -[[image:image-20220615092010-11.png]]
137 137  
104 +[[image:1654852175653-550.png]](% style="display:none" %) ** **
138 138  
139 -No polish needed if the container is shine metal surface without paint or non-metal container.
140 140  
141 -[[image:image-20220615092044-12.png]]
142 142  
108 +== 1.5 ​ Applications ==
143 143  
110 +* Horizontal distance measurement
111 +* Liquid level measurement
112 +* Parking management system
113 +* Object proximity and presence detection
114 +* Intelligent trash can management system
115 +* Robot obstacle avoidance
116 +* Automatic control
117 +* Sewer
118 +* Bottom water level monitoring
144 144  
145 -(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
146 146  
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.
148 148  
122 +== 1.6  Pin mapping and power on ==
149 149  
150 -It is necessary to put the coupling paste between the sensor and the container, otherwise LDDS20 won’t detect the liquid level.
151 151  
152 -[[image:1655256160324-178.png]][[image:image-20220615092327-13.png]]
125 +[[image:1654847583902-256.png]]
153 153  
154 154  
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.
156 156  
129 += 2.  Configure LDDS75 to connect to LoRaWAN network =
157 157  
158 -(% style="color:red" %)**LED Status:**
159 -
160 -* Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
161 -
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.
164 -
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 -
217 217  == 2.1  How it works ==
218 218  
219 219  (((
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.
134 +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
221 221  )))
222 222  
223 223  (((
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.
138 +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.
225 225  )))
226 226  
227 227  
... ... @@ -233,7 +233,7 @@
233 233  )))
234 234  
235 235  (((
236 -[[image:1655257698953-697.png]]
150 +[[image:1654848616367-242.png]]
237 237  )))
238 238  
239 239  (((
... ... @@ -243,11 +243,11 @@
243 243  (((
244 244  
245 245  
246 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS20.
160 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
247 247  )))
248 248  
249 249  (((
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.
164 +Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
251 251  )))
252 252  
253 253  [[image:image-20220607170145-1.jpeg]]
... ... @@ -277,7 +277,6 @@
277 277  [[image:image-20220610161353-7.png]]
278 278  
279 279  
280 -
281 281  You can also choose to create the device manually.
282 282  
283 283   [[image:image-20220610161538-8.png]]
... ... @@ -290,17 +290,16 @@
290 290  
291 291  
292 292  
293 -(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
206 +(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
294 294  
295 295  
296 296  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
297 297  
298 -[[image:image-20220615095102-14.png]]
211 +[[image:image-20220610161724-10.png]]
299 299  
300 300  
301 -
302 302  (((
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.
215 +(% 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.
304 304  )))
305 305  
306 306  [[image:1654849068701-275.png]]
... ... @@ -311,10 +311,12 @@
311 311  
312 312  (((
313 313  (((
314 -LDDS20 will uplink payload via LoRaWAN with below payload format: 
226 +LDDS75 will uplink payload via LoRaWAN with below payload format: 
227 +)))
315 315  
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).
229 +(((
230 +Uplink payload includes in total 4 bytes.
231 +Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
318 318  )))
319 319  )))
320 320  
... ... @@ -341,7 +341,7 @@
341 341  === 2.3.1  Battery Info ===
342 342  
343 343  
344 -Check the battery voltage for LDDS20.
258 +Check the battery voltage for LDDS75.
345 345  
346 346  Ex1: 0x0B45 = 2885mV
347 347  
... ... @@ -352,19 +352,22 @@
352 352  === 2.3.2  Distance ===
353 353  
354 354  (((
355 -Get the distance. Flat object range 20mm - 2000mm.
269 +Get the distance. Flat object range 280mm - 7500mm.
356 356  )))
357 357  
358 358  (((
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.**
273 +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.**
360 360  )))
361 361  
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.
364 364  
277 +* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
278 +* 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.
279 +
280 +
281 +
365 365  === 2.3.3  Interrupt Pin ===
366 366  
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.
284 +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.
368 368  
369 369  **Example:**
370 370  
... ... @@ -410,92 +410,535 @@
410 410  The payload decoder function for TTN V3 is here:
411 411  
412 412  (((
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/]]
330 +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/]]
414 414  )))
415 415  
416 416  
417 417  
418 -== 2.4  Downlink Payload ==
335 +== 2.4  Uplink Interval ==
419 419  
420 -By default, LDDS20 prints the downlink payload to console port.
337 +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"]]
421 421  
422 -[[image:image-20220615100930-15.png]]
423 423  
424 424  
425 -**Examples:**
341 +== 2.5  ​Show Data in DataCake IoT Server ==
426 426  
343 +(((
344 +[[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:
345 +)))
427 427  
428 -* (% style="color:blue" %)**Set TDC**
347 +(((
348 +
349 +)))
429 429  
430 -If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
351 +(((
352 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
353 +)))
431 431  
432 -Payload:    01 00 00 1E    TDC=30S
355 +(((
356 +(% 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:**
357 +)))
433 433  
434 -Payload:    01 00 00 3C    TDC=60S
435 435  
360 +[[image:1654592790040-760.png]]
436 436  
437 -* (% style="color:blue" %)**Reset**
438 438  
439 -If payload = 0x04FF, it will reset the LDDS20
363 +[[image:1654592800389-571.png]]
440 440  
441 441  
442 -* (% style="color:blue" %)**CFM**
366 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
443 443  
444 -Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
368 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
445 445  
370 +[[image:1654851029373-510.png]]
446 446  
447 447  
448 -== 2.5  ​Show Data in DataCake IoT Server ==
373 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
449 449  
375 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
376 +
377 +
378 +
379 +== 2.6  Frequency Plans ==
380 +
450 450  (((
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:
382 +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.
452 452  )))
453 453  
385 +
386 +
387 +=== 2.6.1  EU863-870 (EU868) ===
388 +
454 454  (((
390 +(% style="color:blue" %)**Uplink:**
391 +)))
392 +
393 +(((
394 +868.1 - SF7BW125 to SF12BW125
395 +)))
396 +
397 +(((
398 +868.3 - SF7BW125 to SF12BW125 and SF7BW250
399 +)))
400 +
401 +(((
402 +868.5 - SF7BW125 to SF12BW125
403 +)))
404 +
405 +(((
406 +867.1 - SF7BW125 to SF12BW125
407 +)))
408 +
409 +(((
410 +867.3 - SF7BW125 to SF12BW125
411 +)))
412 +
413 +(((
414 +867.5 - SF7BW125 to SF12BW125
415 +)))
416 +
417 +(((
418 +867.7 - SF7BW125 to SF12BW125
419 +)))
420 +
421 +(((
422 +867.9 - SF7BW125 to SF12BW125
423 +)))
424 +
425 +(((
426 +868.8 - FSK
427 +)))
428 +
429 +(((
455 455  
456 456  )))
457 457  
458 458  (((
459 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
434 +(% style="color:blue" %)**Downlink:**
460 460  )))
461 461  
462 462  (((
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:**
438 +Uplink channels 1-9 (RX1)
464 464  )))
465 465  
441 +(((
442 +869.525 - SF9BW125 (RX2 downlink only)
443 +)))
466 466  
467 -[[image:1654592790040-760.png]]
468 468  
469 469  
470 -[[image:1654592800389-571.png]]
447 +=== 2.6.2  US902-928(US915) ===
471 471  
449 +(((
450 +Used in USA, Canada and South America. Default use CHE=2
472 472  
473 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
452 +(% style="color:blue" %)**Uplink:**
474 474  
475 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
454 +903.9 - SF7BW125 to SF10BW125
476 476  
477 -[[image:1654851029373-510.png]]
456 +904.1 - SF7BW125 to SF10BW125
478 478  
458 +904.3 - SF7BW125 to SF10BW125
479 479  
480 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
460 +904.5 - SF7BW125 to SF10BW125
481 481  
482 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
462 +904.7 - SF7BW125 to SF10BW125
483 483  
464 +904.9 - SF7BW125 to SF10BW125
484 484  
466 +905.1 - SF7BW125 to SF10BW125
485 485  
486 -== 2.6  LED Indicator ==
468 +905.3 - SF7BW125 to SF10BW125
487 487  
488 -The LDDS20 has an internal LED which is to show the status of different state.
489 489  
471 +(% style="color:blue" %)**Downlink:**
490 490  
473 +923.3 - SF7BW500 to SF12BW500
474 +
475 +923.9 - SF7BW500 to SF12BW500
476 +
477 +924.5 - SF7BW500 to SF12BW500
478 +
479 +925.1 - SF7BW500 to SF12BW500
480 +
481 +925.7 - SF7BW500 to SF12BW500
482 +
483 +926.3 - SF7BW500 to SF12BW500
484 +
485 +926.9 - SF7BW500 to SF12BW500
486 +
487 +927.5 - SF7BW500 to SF12BW500
488 +
489 +923.3 - SF12BW500(RX2 downlink only)
490 +
491 +
492 +
493 +)))
494 +
495 +=== 2.6.3  CN470-510 (CN470) ===
496 +
497 +(((
498 +Used in China, Default use CHE=1
499 +)))
500 +
501 +(((
502 +(% style="color:blue" %)**Uplink:**
503 +)))
504 +
505 +(((
506 +486.3 - SF7BW125 to SF12BW125
507 +)))
508 +
509 +(((
510 +486.5 - SF7BW125 to SF12BW125
511 +)))
512 +
513 +(((
514 +486.7 - SF7BW125 to SF12BW125
515 +)))
516 +
517 +(((
518 +486.9 - SF7BW125 to SF12BW125
519 +)))
520 +
521 +(((
522 +487.1 - SF7BW125 to SF12BW125
523 +)))
524 +
525 +(((
526 +487.3 - SF7BW125 to SF12BW125
527 +)))
528 +
529 +(((
530 +487.5 - SF7BW125 to SF12BW125
531 +)))
532 +
533 +(((
534 +487.7 - SF7BW125 to SF12BW125
535 +)))
536 +
537 +(((
538 +
539 +)))
540 +
541 +(((
542 +(% style="color:blue" %)**Downlink:**
543 +)))
544 +
545 +(((
546 +506.7 - SF7BW125 to SF12BW125
547 +)))
548 +
549 +(((
550 +506.9 - SF7BW125 to SF12BW125
551 +)))
552 +
553 +(((
554 +507.1 - SF7BW125 to SF12BW125
555 +)))
556 +
557 +(((
558 +507.3 - SF7BW125 to SF12BW125
559 +)))
560 +
561 +(((
562 +507.5 - SF7BW125 to SF12BW125
563 +)))
564 +
565 +(((
566 +507.7 - SF7BW125 to SF12BW125
567 +)))
568 +
569 +(((
570 +507.9 - SF7BW125 to SF12BW125
571 +)))
572 +
573 +(((
574 +508.1 - SF7BW125 to SF12BW125
575 +)))
576 +
577 +(((
578 +505.3 - SF12BW125 (RX2 downlink only)
579 +)))
580 +
581 +
582 +
583 +=== 2.6.4  AU915-928(AU915) ===
584 +
585 +(((
586 +Default use CHE=2
587 +
588 +(% style="color:blue" %)**Uplink:**
589 +
590 +916.8 - SF7BW125 to SF12BW125
591 +
592 +917.0 - SF7BW125 to SF12BW125
593 +
594 +917.2 - SF7BW125 to SF12BW125
595 +
596 +917.4 - SF7BW125 to SF12BW125
597 +
598 +917.6 - SF7BW125 to SF12BW125
599 +
600 +917.8 - SF7BW125 to SF12BW125
601 +
602 +918.0 - SF7BW125 to SF12BW125
603 +
604 +918.2 - SF7BW125 to SF12BW125
605 +
606 +
607 +(% style="color:blue" %)**Downlink:**
608 +
609 +923.3 - SF7BW500 to SF12BW500
610 +
611 +923.9 - SF7BW500 to SF12BW500
612 +
613 +924.5 - SF7BW500 to SF12BW500
614 +
615 +925.1 - SF7BW500 to SF12BW500
616 +
617 +925.7 - SF7BW500 to SF12BW500
618 +
619 +926.3 - SF7BW500 to SF12BW500
620 +
621 +926.9 - SF7BW500 to SF12BW500
622 +
623 +927.5 - SF7BW500 to SF12BW500
624 +
625 +923.3 - SF12BW500(RX2 downlink only)
626 +
627 +
628 +
629 +)))
630 +
631 +=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
632 +
633 +(((
634 +(% style="color:blue" %)**Default Uplink channel:**
635 +)))
636 +
637 +(((
638 +923.2 - SF7BW125 to SF10BW125
639 +)))
640 +
641 +(((
642 +923.4 - SF7BW125 to SF10BW125
643 +)))
644 +
645 +(((
646 +
647 +)))
648 +
649 +(((
650 +(% style="color:blue" %)**Additional Uplink Channel**:
651 +)))
652 +
653 +(((
654 +(OTAA mode, channel added by JoinAccept message)
655 +)))
656 +
657 +(((
658 +
659 +)))
660 +
661 +(((
662 +(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
663 +)))
664 +
665 +(((
666 +922.2 - SF7BW125 to SF10BW125
667 +)))
668 +
669 +(((
670 +922.4 - SF7BW125 to SF10BW125
671 +)))
672 +
673 +(((
674 +922.6 - SF7BW125 to SF10BW125
675 +)))
676 +
677 +(((
678 +922.8 - SF7BW125 to SF10BW125
679 +)))
680 +
681 +(((
682 +923.0 - SF7BW125 to SF10BW125
683 +)))
684 +
685 +(((
686 +922.0 - SF7BW125 to SF10BW125
687 +)))
688 +
689 +(((
690 +
691 +)))
692 +
693 +(((
694 +(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
695 +)))
696 +
697 +(((
698 +923.6 - SF7BW125 to SF10BW125
699 +)))
700 +
701 +(((
702 +923.8 - SF7BW125 to SF10BW125
703 +)))
704 +
705 +(((
706 +924.0 - SF7BW125 to SF10BW125
707 +)))
708 +
709 +(((
710 +924.2 - SF7BW125 to SF10BW125
711 +)))
712 +
713 +(((
714 +924.4 - SF7BW125 to SF10BW125
715 +)))
716 +
717 +(((
718 +924.6 - SF7BW125 to SF10BW125
719 +)))
720 +
721 +(((
722 +
723 +)))
724 +
725 +(((
726 +(% style="color:blue" %)**Downlink:**
727 +)))
728 +
729 +(((
730 +Uplink channels 1-8 (RX1)
731 +)))
732 +
733 +(((
734 +923.2 - SF10BW125 (RX2)
735 +)))
736 +
737 +
738 +
739 +=== 2.6.6  KR920-923 (KR920) ===
740 +
741 +(((
742 +(% style="color:blue" %)**Default channel:**
743 +)))
744 +
745 +(((
746 +922.1 - SF7BW125 to SF12BW125
747 +)))
748 +
749 +(((
750 +922.3 - SF7BW125 to SF12BW125
751 +)))
752 +
753 +(((
754 +922.5 - SF7BW125 to SF12BW125
755 +)))
756 +
757 +(((
758 +
759 +)))
760 +
761 +(((
762 +(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
763 +)))
764 +
765 +(((
766 +922.1 - SF7BW125 to SF12BW125
767 +)))
768 +
769 +(((
770 +922.3 - SF7BW125 to SF12BW125
771 +)))
772 +
773 +(((
774 +922.5 - SF7BW125 to SF12BW125
775 +)))
776 +
777 +(((
778 +922.7 - SF7BW125 to SF12BW125
779 +)))
780 +
781 +(((
782 +922.9 - SF7BW125 to SF12BW125
783 +)))
784 +
785 +(((
786 +923.1 - SF7BW125 to SF12BW125
787 +)))
788 +
789 +(((
790 +923.3 - SF7BW125 to SF12BW125
791 +)))
792 +
793 +(((
794 +
795 +)))
796 +
797 +(((
798 +(% style="color:blue" %)**Downlink:**
799 +)))
800 +
801 +(((
802 +Uplink channels 1-7(RX1)
803 +)))
804 +
805 +(((
806 +921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
807 +)))
808 +
809 +
810 +
811 +=== 2.6.7  IN865-867 (IN865) ===
812 +
813 +(((
814 +(% style="color:blue" %)**Uplink:**
815 +)))
816 +
817 +(((
818 +865.0625 - SF7BW125 to SF12BW125
819 +)))
820 +
821 +(((
822 +865.4025 - SF7BW125 to SF12BW125
823 +)))
824 +
825 +(((
826 +865.9850 - SF7BW125 to SF12BW125
827 +)))
828 +
829 +(((
830 +
831 +)))
832 +
833 +(((
834 +(% style="color:blue" %)**Downlink:**
835 +)))
836 +
837 +(((
838 +Uplink channels 1-3 (RX1)
839 +)))
840 +
841 +(((
842 +866.550 - SF10BW125 (RX2)
843 +)))
844 +
845 +
846 +
847 +== 2.7  LED Indicator ==
848 +
849 +The LDDS75 has an internal LED which is to show the status of different state.
850 +
851 +
491 491  * Blink once when device power on.
492 492  * The device detects the sensor and flashes 5 times.
493 493  * Solid ON for 5 seconds once device successful Join the network.
855 +* Blink once when device transmit a packet.
494 494  
495 -Blink once when device transmit a packet.
496 496  
497 497  
498 -
499 499  == 2.8  ​Firmware Change Log ==
500 500  
501 501  
... ... @@ -712,6 +712,8 @@
712 712  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
713 713  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
714 714  
1075 +
1076 +
715 715  = 4.  FAQ =
716 716  
717 717  == 4.1  What is the frequency plan for LDDS75? ==
... ... @@ -771,6 +771,8 @@
771 771  * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
772 772  * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
773 773  
1136 +
1137 +
774 774  = 7. ​ Packing Info =
775 775  
776 776  
... ... @@ -785,6 +785,8 @@
785 785  * Package Size / pcs : cm
786 786  * Weight / pcs : g
787 787  
1152 +
1153 +
788 788  = 8.  ​Support =
789 789  
790 790  * 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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