Skip to Content
Last modified by Mengting Qiu on 2025/08/06 17:02
From version 161.1
edited by Xiaoling
on 2022/06/15 09:10
Change comment: Uploaded new attachment "image-20220615091045-6.png", version {1}
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
Content
... ... @@ -100,8 +100,6 @@
100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 -
104 -
105 105  == 1.3  Suitable Container & Liquid ==
106 106  
107 107  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -111,8 +111,6 @@
111 111  ** Pure non metal material: <10 mm
112 112  * Pure liquid without irregular deposition.
113 113  
114 -
115 -
116 116  == 1.4  Mechanical ==
117 117  
118 118  [[image:image-20220615090910-1.png]]
... ... @@ -122,35 +122,110 @@
122 122  
123 123  
124 124  
125 -== 1.5 ​ Applications ==
121 +== 1.5  Install LDDS20 ==
126 126  
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
136 136  
137 -== 1.6  Pin mapping and power on ==
124 +(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
138 138  
126 +LDDS20 (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
139 139  
140 -[[image:1654847583902-256.png]]
128 +[[image:image-20220615091045-3.png]]
141 141  
142 142  
143 143  
144 -= 2.  Configure LDDS75 to connect to LoRaWAN network =
132 +(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
145 145  
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 +
146 146  == 2.1  How it works ==
147 147  
148 148  (((
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
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.
150 150  )))
151 151  
152 152  (((
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.
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.
154 154  )))
155 155  
156 156  
... ... @@ -162,7 +162,7 @@
162 162  )))
163 163  
164 164  (((
165 -[[image:1654848616367-242.png]]
236 +[[image:1655257698953-697.png]]
166 166  )))
167 167  
168 168  (((
... ... @@ -172,11 +172,11 @@
172 172  (((
173 173  
174 174  
175 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
246 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS20.
176 176  )))
177 177  
178 178  (((
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.
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.
180 180  )))
181 181  
182 182  [[image:image-20220607170145-1.jpeg]]
... ... @@ -206,6 +206,7 @@
206 206  [[image:image-20220610161353-7.png]]
207 207  
208 208  
280 +
209 209  You can also choose to create the device manually.
210 210  
211 211   [[image:image-20220610161538-8.png]]
... ... @@ -218,16 +218,17 @@
218 218  
219 219  
220 220  
221 -(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
293 +(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
222 222  
223 223  
224 224  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
225 225  
226 -[[image:image-20220610161724-10.png]]
298 +[[image:image-20220615095102-14.png]]
227 227  
228 228  
301 +
229 229  (((
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.
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.
231 231  )))
232 232  
233 233  [[image:1654849068701-275.png]]
... ... @@ -238,12 +238,10 @@
238 238  
239 239  (((
240 240  (((
241 -LDDS75 will uplink payload via LoRaWAN with below payload format: 
242 -)))
314 +LDDS20 will uplink payload via LoRaWAN with below payload format: 
243 243  
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
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).
247 247  )))
248 248  )))
249 249  
... ... @@ -270,7 +270,7 @@
270 270  === 2.3.1  Battery Info ===
271 271  
272 272  
273 -Check the battery voltage for LDDS75.
344 +Check the battery voltage for LDDS20.
274 274  
275 275  Ex1: 0x0B45 = 2885mV
276 276  
... ... @@ -281,20 +281,19 @@
281 281  === 2.3.2  Distance ===
282 282  
283 283  (((
284 -Get the distance. Flat object range 280mm - 7500mm.
355 +Get the distance. Flat object range 20mm - 2000mm.
285 285  )))
286 286  
287 287  (((
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.**
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.**
289 289  )))
290 290  
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.
291 291  
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 -
295 295  === 2.3.3  Interrupt Pin ===
296 296  
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.
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.
298 298  
299 299  **Example:**
300 300  
... ... @@ -340,533 +340,92 @@
340 340  The payload decoder function for TTN V3 is here:
341 341  
342 342  (((
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/]]
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/]]
344 344  )))
345 345  
346 346  
347 347  
348 -== 2.4  Uplink Interval ==
418 +== 2.4  Downlink Payload ==
349 349  
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"]]
420 +By default, LDDS20 prints the downlink payload to console port.
351 351  
422 +[[image:image-20220615100930-15.png]]
352 352  
353 353  
354 -== 2.5  ​Show Data in DataCake IoT Server ==
425 +**Examples:**
355 355  
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 -)))
359 359  
360 -(((
361 -
362 -)))
428 +* (% style="color:blue" %)**Set TDC**
363 363  
364 -(((
365 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
366 -)))
430 +If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
367 367  
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 -)))
432 +Payload:    01 00 00 1E    TDC=30S
371 371  
434 +Payload:    01 00 00 3C    TDC=60S
372 372  
373 -[[image:1654592790040-760.png]]
374 374  
437 +* (% style="color:blue" %)**Reset**
375 375  
376 -[[image:1654592800389-571.png]]
439 +If payload = 0x04FF, it will reset the LDDS20
377 377  
378 378  
379 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
442 +* (% style="color:blue" %)**CFM**
380 380  
381 -(% 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
382 382  
383 -[[image:1654851029373-510.png]]
384 384  
385 385  
386 -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 ==
387 387  
388 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
389 -
390 -
391 -
392 -== 2.6  Frequency Plans ==
393 -
394 394  (((
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.
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:
396 396  )))
397 397  
398 -
399 -
400 -=== 2.6.1  EU863-870 (EU868) ===
401 -
402 402  (((
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 -(((
443 443  
444 444  )))
445 445  
446 446  (((
447 -(% 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.**
448 448  )))
449 449  
450 450  (((
451 -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:**
452 452  )))
453 453  
454 -(((
455 -869.525 - SF9BW125 (RX2 downlink only)
456 -)))
457 457  
467 +[[image:1654592790040-760.png]]
458 458  
459 459  
460 -=== 2.6.2  US902-928(US915) ===
470 +[[image:1654592800389-571.png]]
461 461  
462 -(((
463 -Used in USA, Canada and South America. Default use CHE=2
464 464  
465 -(% style="color:blue" %)**Uplink:**
473 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
466 466  
467 -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)(%%)**
468 468  
469 -904.1 - SF7BW125 to SF10BW125
477 +[[image:1654851029373-510.png]]
470 470  
471 -904.3 - SF7BW125 to SF10BW125
472 472  
473 -904.5 - SF7BW125 to SF10BW125
480 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
474 474  
475 -904.7 - SF7BW125 to SF10BW125
482 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
476 476  
477 -904.9 - SF7BW125 to SF10BW125
478 478  
479 -905.1 - SF7BW125 to SF10BW125
480 480  
481 -905.3 - SF7BW125 to SF10BW125
486 +== 2.6  LED Indicator ==
482 482  
488 +The LDDS20 has an internal LED which is to show the status of different state.
483 483  
484 -(% style="color:blue" %)**Downlink:**
485 485  
486 -923.3 - SF7BW500 to SF12BW500
487 -
488 -923.9 - SF7BW500 to SF12BW500
489 -
490 -924.5 - SF7BW500 to SF12BW500
491 -
492 -925.1 - SF7BW500 to SF12BW500
493 -
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 -
865 865  * Blink once when device power on.
866 866  * The device detects the sensor and flashes 5 times.
867 867  * Solid ON for 5 seconds once device successful Join the network.
868 -* Blink once when device transmit a packet.
869 869  
495 +Blink once when device transmit a packet.
496 +
497 +
498 +
870 870  == 2.8  ​Firmware Change Log ==
871 871  
872 872  
1655256160324-178.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +177.0 KB
Content
1655257026882-201.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +492.6 KB
Content
1655257698953-697.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +101.7 KB
Content
image-20220615091045-7.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +371.1 KB
Content
image-20220615091045-8.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +206.3 KB
Content
image-20220615091045-9.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +115.0 KB
Content
image-20220615091929-10.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +37.7 KB
Content
image-20220615092010-11.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +37.3 KB
Content
image-20220615092044-12.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +63.5 KB
Content
image-20220615092327-13.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +66.3 KB
Content
image-20220615095102-14.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +179.0 KB
Content
image-20220615100930-15.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +10.5 KB
Content