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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
Change comment: There is no comment for this version
To version 163.1
edited by Xiaoling
on 2022/06/15 09:10
Change comment: Uploaded new attachment "image-20220615091045-8.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -100,6 +100,8 @@
100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 +
104 +
103 103  == 1.3  Suitable Container & Liquid ==
104 104  
105 105  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -109,6 +109,8 @@
109 109  ** Pure non metal material: <10 mm
110 110  * Pure liquid without irregular deposition.
111 111  
114 +
115 +
112 112  == 1.4  Mechanical ==
113 113  
114 114  [[image:image-20220615090910-1.png]]
... ... @@ -118,110 +118,35 @@
118 118  
119 119  
120 120  
121 -== 1.5  Install LDDS20 ==
125 +== 1.5 ​ Applications ==
122 122  
127 +* Horizontal distance measurement
128 +* Liquid level measurement
129 +* Parking management system
130 +* Object proximity and presence detection
131 +* Intelligent trash can management system
132 +* Robot obstacle avoidance
133 +* Automatic control
134 +* Sewer
135 +* Bottom water level monitoring
123 123  
124 -(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
137 +== 1.6  Pin mapping and power on ==
125 125  
126 -LDDS20 (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
127 127  
128 -[[image:image-20220615091045-3.png]]
140 +[[image:1654847583902-256.png]]
129 129  
130 130  
131 131  
132 -(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
144 += 2.  Configure LDDS75 to connect to LoRaWAN network =
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.
135 -
136 -[[image:image-20220615092010-11.png]]
137 -
138 -
139 -No polish needed if the container is shine metal surface without paint or non-metal container.
140 -
141 -[[image:image-20220615092044-12.png]]
142 -
143 -
144 -
145 -(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
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 -
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 -
152 -[[image:1655256160324-178.png]][[image:image-20220615092327-13.png]]
153 -
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 -
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.
149 +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.
153 +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]]
165 +[[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.
175 +(% 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.
179 +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
221 +(% 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]]
226 +[[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.
230 +(% 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: 
241 +LDDS75 will uplink payload via LoRaWAN with below payload format: 
242 +)))
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).
244 +(((
245 +Uplink payload includes in total 4 bytes.
246 +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.
273 +Check the battery voltage for LDDS75.
345 345  
346 346  Ex1: 0x0B45 = 2885mV
347 347  
... ... @@ -352,19 +352,20 @@
352 352  === 2.3.2  Distance ===
353 353  
354 354  (((
355 -Get the distance. Flat object range 20mm - 2000mm.
284 +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.**
288 +For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
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  
292 +* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
293 +* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
294 +
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.
297 +This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up.
368 368  
369 369  **Example:**
370 370  
... ... @@ -410,92 +410,533 @@
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/]]
343 +LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
414 414  )))
415 415  
416 416  
417 417  
418 -== 2.4  Downlink Payload ==
348 +== 2.4  Uplink Interval ==
419 419  
420 -By default, LDDS20 prints the downlink payload to console port.
350 +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:**
354 +== 2.5  ​Show Data in DataCake IoT Server ==
426 426  
356 +(((
357 +[[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:
358 +)))
427 427  
428 -* (% style="color:blue" %)**Set TDC**
360 +(((
361 +
362 +)))
429 429  
430 -If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
364 +(((
365 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
366 +)))
431 431  
432 -Payload:    01 00 00 1E    TDC=30S
368 +(((
369 +(% 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:**
370 +)))
433 433  
434 -Payload:    01 00 00 3C    TDC=60S
435 435  
373 +[[image:1654592790040-760.png]]
436 436  
437 -* (% style="color:blue" %)**Reset**
438 438  
439 -If payload = 0x04FF, it will reset the LDDS20
376 +[[image:1654592800389-571.png]]
440 440  
441 441  
442 -* (% style="color:blue" %)**CFM**
379 +(% 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
381 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
445 445  
383 +[[image:1654851029373-510.png]]
446 446  
447 447  
448 -== 2.5  ​Show Data in DataCake IoT Server ==
386 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
449 449  
388 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
389 +
390 +
391 +
392 +== 2.6  Frequency Plans ==
393 +
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:
395 +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  
398 +
399 +
400 +=== 2.6.1  EU863-870 (EU868) ===
401 +
454 454  (((
403 +(% style="color:blue" %)**Uplink:**
404 +)))
405 +
406 +(((
407 +868.1 - SF7BW125 to SF12BW125
408 +)))
409 +
410 +(((
411 +868.3 - SF7BW125 to SF12BW125 and SF7BW250
412 +)))
413 +
414 +(((
415 +868.5 - SF7BW125 to SF12BW125
416 +)))
417 +
418 +(((
419 +867.1 - SF7BW125 to SF12BW125
420 +)))
421 +
422 +(((
423 +867.3 - SF7BW125 to SF12BW125
424 +)))
425 +
426 +(((
427 +867.5 - SF7BW125 to SF12BW125
428 +)))
429 +
430 +(((
431 +867.7 - SF7BW125 to SF12BW125
432 +)))
433 +
434 +(((
435 +867.9 - SF7BW125 to SF12BW125
436 +)))
437 +
438 +(((
439 +868.8 - FSK
440 +)))
441 +
442 +(((
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.**
447 +(% 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:**
451 +Uplink channels 1-9 (RX1)
464 464  )))
465 465  
454 +(((
455 +869.525 - SF9BW125 (RX2 downlink only)
456 +)))
466 466  
467 -[[image:1654592790040-760.png]]
468 468  
469 469  
470 -[[image:1654592800389-571.png]]
460 +=== 2.6.2  US902-928(US915) ===
471 471  
462 +(((
463 +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.**
465 +(% 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)(%%)**
467 +903.9 - SF7BW125 to SF10BW125
476 476  
477 -[[image:1654851029373-510.png]]
469 +904.1 - SF7BW125 to SF10BW125
478 478  
471 +904.3 - SF7BW125 to SF10BW125
479 479  
480 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
473 +904.5 - SF7BW125 to SF10BW125
481 481  
482 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
475 +904.7 - SF7BW125 to SF10BW125
483 483  
477 +904.9 - SF7BW125 to SF10BW125
484 484  
479 +905.1 - SF7BW125 to SF10BW125
485 485  
486 -== 2.6  LED Indicator ==
481 +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  
484 +(% style="color:blue" %)**Downlink:**
490 490  
491 -* Blink once when device power on.
492 -* The device detects the sensor and flashes 5 times.
493 -* Solid ON for 5 seconds once device successful Join the network.
486 +923.3 - SF7BW500 to SF12BW500
494 494  
495 -Blink once when device transmit a packet.
488 +923.9 - SF7BW500 to SF12BW500
496 496  
490 +924.5 - SF7BW500 to SF12BW500
497 497  
492 +925.1 - SF7BW500 to SF12BW500
498 498  
494 +925.7 - SF7BW500 to SF12BW500
495 +
496 +926.3 - SF7BW500 to SF12BW500
497 +
498 +926.9 - SF7BW500 to SF12BW500
499 +
500 +927.5 - SF7BW500 to SF12BW500
501 +
502 +923.3 - SF12BW500(RX2 downlink only)
503 +
504 +
505 +
506 +)))
507 +
508 +=== 2.6.3  CN470-510 (CN470) ===
509 +
510 +(((
511 +Used in China, Default use CHE=1
512 +)))
513 +
514 +(((
515 +(% style="color:blue" %)**Uplink:**
516 +)))
517 +
518 +(((
519 +486.3 - SF7BW125 to SF12BW125
520 +)))
521 +
522 +(((
523 +486.5 - SF7BW125 to SF12BW125
524 +)))
525 +
526 +(((
527 +486.7 - SF7BW125 to SF12BW125
528 +)))
529 +
530 +(((
531 +486.9 - SF7BW125 to SF12BW125
532 +)))
533 +
534 +(((
535 +487.1 - SF7BW125 to SF12BW125
536 +)))
537 +
538 +(((
539 +487.3 - SF7BW125 to SF12BW125
540 +)))
541 +
542 +(((
543 +487.5 - SF7BW125 to SF12BW125
544 +)))
545 +
546 +(((
547 +487.7 - SF7BW125 to SF12BW125
548 +)))
549 +
550 +(((
551 +
552 +)))
553 +
554 +(((
555 +(% style="color:blue" %)**Downlink:**
556 +)))
557 +
558 +(((
559 +506.7 - SF7BW125 to SF12BW125
560 +)))
561 +
562 +(((
563 +506.9 - SF7BW125 to SF12BW125
564 +)))
565 +
566 +(((
567 +507.1 - SF7BW125 to SF12BW125
568 +)))
569 +
570 +(((
571 +507.3 - SF7BW125 to SF12BW125
572 +)))
573 +
574 +(((
575 +507.5 - SF7BW125 to SF12BW125
576 +)))
577 +
578 +(((
579 +507.7 - SF7BW125 to SF12BW125
580 +)))
581 +
582 +(((
583 +507.9 - SF7BW125 to SF12BW125
584 +)))
585 +
586 +(((
587 +508.1 - SF7BW125 to SF12BW125
588 +)))
589 +
590 +(((
591 +505.3 - SF12BW125 (RX2 downlink only)
592 +)))
593 +
594 +
595 +
596 +=== 2.6.4  AU915-928(AU915) ===
597 +
598 +(((
599 +Default use CHE=2
600 +
601 +(% style="color:blue" %)**Uplink:**
602 +
603 +916.8 - SF7BW125 to SF12BW125
604 +
605 +917.0 - SF7BW125 to SF12BW125
606 +
607 +917.2 - SF7BW125 to SF12BW125
608 +
609 +917.4 - SF7BW125 to SF12BW125
610 +
611 +917.6 - SF7BW125 to SF12BW125
612 +
613 +917.8 - SF7BW125 to SF12BW125
614 +
615 +918.0 - SF7BW125 to SF12BW125
616 +
617 +918.2 - SF7BW125 to SF12BW125
618 +
619 +
620 +(% style="color:blue" %)**Downlink:**
621 +
622 +923.3 - SF7BW500 to SF12BW500
623 +
624 +923.9 - SF7BW500 to SF12BW500
625 +
626 +924.5 - SF7BW500 to SF12BW500
627 +
628 +925.1 - SF7BW500 to SF12BW500
629 +
630 +925.7 - SF7BW500 to SF12BW500
631 +
632 +926.3 - SF7BW500 to SF12BW500
633 +
634 +926.9 - SF7BW500 to SF12BW500
635 +
636 +927.5 - SF7BW500 to SF12BW500
637 +
638 +923.3 - SF12BW500(RX2 downlink only)
639 +
640 +
641 +
642 +)))
643 +
644 +=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
645 +
646 +(((
647 +(% style="color:blue" %)**Default Uplink channel:**
648 +)))
649 +
650 +(((
651 +923.2 - SF7BW125 to SF10BW125
652 +)))
653 +
654 +(((
655 +923.4 - SF7BW125 to SF10BW125
656 +)))
657 +
658 +(((
659 +
660 +)))
661 +
662 +(((
663 +(% style="color:blue" %)**Additional Uplink Channel**:
664 +)))
665 +
666 +(((
667 +(OTAA mode, channel added by JoinAccept message)
668 +)))
669 +
670 +(((
671 +
672 +)))
673 +
674 +(((
675 +(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
676 +)))
677 +
678 +(((
679 +922.2 - SF7BW125 to SF10BW125
680 +)))
681 +
682 +(((
683 +922.4 - SF7BW125 to SF10BW125
684 +)))
685 +
686 +(((
687 +922.6 - SF7BW125 to SF10BW125
688 +)))
689 +
690 +(((
691 +922.8 - SF7BW125 to SF10BW125
692 +)))
693 +
694 +(((
695 +923.0 - SF7BW125 to SF10BW125
696 +)))
697 +
698 +(((
699 +922.0 - SF7BW125 to SF10BW125
700 +)))
701 +
702 +(((
703 +
704 +)))
705 +
706 +(((
707 +(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
708 +)))
709 +
710 +(((
711 +923.6 - SF7BW125 to SF10BW125
712 +)))
713 +
714 +(((
715 +923.8 - SF7BW125 to SF10BW125
716 +)))
717 +
718 +(((
719 +924.0 - SF7BW125 to SF10BW125
720 +)))
721 +
722 +(((
723 +924.2 - SF7BW125 to SF10BW125
724 +)))
725 +
726 +(((
727 +924.4 - SF7BW125 to SF10BW125
728 +)))
729 +
730 +(((
731 +924.6 - SF7BW125 to SF10BW125
732 +)))
733 +
734 +(((
735 +
736 +)))
737 +
738 +(((
739 +(% style="color:blue" %)**Downlink:**
740 +)))
741 +
742 +(((
743 +Uplink channels 1-8 (RX1)
744 +)))
745 +
746 +(((
747 +923.2 - SF10BW125 (RX2)
748 +)))
749 +
750 +
751 +
752 +=== 2.6.6  KR920-923 (KR920) ===
753 +
754 +(((
755 +(% style="color:blue" %)**Default channel:**
756 +)))
757 +
758 +(((
759 +922.1 - SF7BW125 to SF12BW125
760 +)))
761 +
762 +(((
763 +922.3 - SF7BW125 to SF12BW125
764 +)))
765 +
766 +(((
767 +922.5 - SF7BW125 to SF12BW125
768 +)))
769 +
770 +(((
771 +
772 +)))
773 +
774 +(((
775 +(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
776 +)))
777 +
778 +(((
779 +922.1 - SF7BW125 to SF12BW125
780 +)))
781 +
782 +(((
783 +922.3 - SF7BW125 to SF12BW125
784 +)))
785 +
786 +(((
787 +922.5 - SF7BW125 to SF12BW125
788 +)))
789 +
790 +(((
791 +922.7 - SF7BW125 to SF12BW125
792 +)))
793 +
794 +(((
795 +922.9 - SF7BW125 to SF12BW125
796 +)))
797 +
798 +(((
799 +923.1 - SF7BW125 to SF12BW125
800 +)))
801 +
802 +(((
803 +923.3 - SF7BW125 to SF12BW125
804 +)))
805 +
806 +(((
807 +
808 +)))
809 +
810 +(((
811 +(% style="color:blue" %)**Downlink:**
812 +)))
813 +
814 +(((
815 +Uplink channels 1-7(RX1)
816 +)))
817 +
818 +(((
819 +921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
820 +)))
821 +
822 +
823 +
824 +=== 2.6.7  IN865-867 (IN865) ===
825 +
826 +(((
827 +(% style="color:blue" %)**Uplink:**
828 +)))
829 +
830 +(((
831 +865.0625 - SF7BW125 to SF12BW125
832 +)))
833 +
834 +(((
835 +865.4025 - SF7BW125 to SF12BW125
836 +)))
837 +
838 +(((
839 +865.9850 - SF7BW125 to SF12BW125
840 +)))
841 +
842 +(((
843 +
844 +)))
845 +
846 +(((
847 +(% style="color:blue" %)**Downlink:**
848 +)))
849 +
850 +(((
851 +Uplink channels 1-3 (RX1)
852 +)))
853 +
854 +(((
855 +866.550 - SF10BW125 (RX2)
856 +)))
857 +
858 +
859 +
860 +== 2.7  LED Indicator ==
861 +
862 +The LDDS75 has an internal LED which is to show the status of different state.
863 +
864 +
865 +* Blink once when device power on.
866 +* The device detects the sensor and flashes 5 times.
867 +* Solid ON for 5 seconds once device successful Join the network.
868 +* Blink once when device transmit a packet.
869 +
499 499  == 2.8  ​Firmware Change Log ==
500 500  
501 501  
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