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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 168.1
edited by Xiaoling
on 2022/06/15 09:22
Change comment: Uploaded new attachment "1655256160324-178.png", version {1}
To version 174.9
edited by Xiaoling
on 2022/06/15 10:43
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -100,7 +100,6 @@
100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 -
104 104  == 1.3  Suitable Container & Liquid ==
105 105  
106 106  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -110,7 +110,6 @@
110 110  ** Pure non metal material: <10 mm
111 111  * Pure liquid without irregular deposition.
112 112  
113 -
114 114  == 1.4  Mechanical ==
115 115  
116 116  [[image:image-20220615090910-1.png]]
... ... @@ -131,7 +131,7 @@
131 131  
132 132  
133 133  
134 -(% style="color:blue" %)**Step 2**(%%): Polish the installation point.
132 +(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
135 135  
136 136  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.
137 137  
... ... @@ -140,30 +140,24 @@
140 140  
141 141  No polish needed if the container is shine metal surface without paint or non-metal container.
142 142  
143 -[[image:image-20220615092044-12.png]]
141 +[[image:image-20220615092044-12.png]]
144 144  
145 145  
146 -(% style="color:blue" %)**Step3: **(%%)Test the installation point.
147 147  
145 +(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
146 +
148 148  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.
149 149  
150 150  
151 151  It is necessary to put the coupling paste between the sensor and the container, otherwise LDDS20 won’t detect the liquid level.
152 152  
152 +[[image:1655256160324-178.png]][[image:image-20220615092327-13.png]]
153 153  
154 154  
155 -|(((
156 -BLUE LED
157 -)))
158 -
159 -[[image:image-20220615091045-6.png]] [[image:image-20220615091045-7.png]]
160 -
161 -
162 -
163 163  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.
164 164  
165 165  
166 -(% style="color:blue" %)LED Status:
158 +(% style="color:red" %)**LED Status:**
167 167  
168 168  * Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
169 169  
... ... @@ -172,68 +172,64 @@
172 172  
173 173  LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
174 174  
175 -Note 2:
176 176  
177 -Ultrasonic coupling paste is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
168 +(% style="color:red" %)**Note 2:**
178 178  
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.
179 179  
180 -(% style="color:blue" %)**Step4: **(%%)Install use Epoxy ab glue.
181 181  
182 -[[image:image-20220615091045-8.png]]
183 183  
174 +(% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
175 +
184 184  Prepare Eproxy AB glue.
185 185  
186 -
187 187  Put Eproxy AB glue in the sensor and press it hard on the container installation point.
188 188  
189 -
190 190  Reset LDDS20 and see if the BLUE LED is slowly blinking.
191 191  
192 -[[image:image-20220615091045-9.png]]
182 +[[image:image-20220615091045-8.png||height="226" width="380"]] [[image:image-20220615091045-9.png||height="239" width="339"]]
193 193  
194 -(% style="color:red" %)Note1:
195 195  
185 +(% style="color:red" %)**Note 1:**
186 +
196 196  Eproxy AB glue needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
197 197  
198 198  
199 -(% style="color:red" %)Note 2:
190 +(% style="color:red" %)**Note 2:**
200 200  
201 -(% style="color:blue" %)Eproxy AB glue(%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
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.
202 202  
203 203  
204 204  
196 +== 1.6 ​ Applications ==
205 205  
198 +* Smart liquid control solution.
199 +* Smart liquefied gas solution.
206 206  
201 +== 1.7  Precautions ==
207 207  
208 -== 1.5 ​ Applications ==
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.
209 209  
210 -* Horizontal distance measurement
211 -* Liquid level measurement
212 -* Parking management system
213 -* Object proximity and presence detection
214 -* Intelligent trash can management system
215 -* Robot obstacle avoidance
216 -* Automatic control
217 -* Sewer
218 -* Bottom water level monitoring
207 +== 1.8  Pin mapping and power on ==
219 219  
220 -== 1.6  Pin mapping and power on ==
221 221  
210 +[[image:1655257026882-201.png]]
222 222  
223 -[[image:1654847583902-256.png]]
224 224  
225 225  
214 += 2.  Configure LDDS20 to connect to LoRaWAN network =
226 226  
227 -= 2.  Configure LDDS75 to connect to LoRaWAN network =
228 228  
229 229  == 2.1  How it works ==
230 230  
231 231  (((
232 -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.
233 233  )))
234 234  
235 235  (((
236 -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.
237 237  )))
238 238  
239 239  
... ... @@ -245,7 +245,7 @@
245 245  )))
246 246  
247 247  (((
248 -[[image:1654848616367-242.png]]
236 +[[image:1655257698953-697.png]]
249 249  )))
250 250  
251 251  (((
... ... @@ -255,11 +255,11 @@
255 255  (((
256 256  
257 257  
258 -(% 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.
259 259  )))
260 260  
261 261  (((
262 -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.
263 263  )))
264 264  
265 265  [[image:image-20220607170145-1.jpeg]]
... ... @@ -289,6 +289,7 @@
289 289  [[image:image-20220610161353-7.png]]
290 290  
291 291  
280 +
292 292  You can also choose to create the device manually.
293 293  
294 294   [[image:image-20220610161538-8.png]]
... ... @@ -301,16 +301,17 @@
301 301  
302 302  
303 303  
304 -(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
293 +(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
305 305  
306 306  
307 307  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
308 308  
309 -[[image:image-20220610161724-10.png]]
298 +[[image:image-20220615095102-14.png]]
310 310  
311 311  
301 +
312 312  (((
313 -(% 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.
314 314  )))
315 315  
316 316  [[image:1654849068701-275.png]]
... ... @@ -321,12 +321,10 @@
321 321  
322 322  (((
323 323  (((
324 -LDDS75 will uplink payload via LoRaWAN with below payload format: 
325 -)))
314 +LDDS20 will uplink payload via LoRaWAN with below payload format: 
326 326  
327 -(((
328 -Uplink payload includes in total 4 bytes.
329 -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).
330 330  )))
331 331  )))
332 332  
... ... @@ -353,7 +353,7 @@
353 353  === 2.3.1  Battery Info ===
354 354  
355 355  
356 -Check the battery voltage for LDDS75.
344 +Check the battery voltage for LDDS20.
357 357  
358 358  Ex1: 0x0B45 = 2885mV
359 359  
... ... @@ -364,20 +364,21 @@
364 364  === 2.3.2  Distance ===
365 365  
366 366  (((
367 -Get the distance. Flat object range 280mm - 7500mm.
355 +Get the distance. Flat object range 20mm - 2000mm.
368 368  )))
369 369  
370 370  (((
371 -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.**
372 372  )))
373 373  
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.
374 374  
375 -* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
376 -* 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.
377 377  
366 +
378 378  === 2.3.3  Interrupt Pin ===
379 379  
380 -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.
369 +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.
381 381  
382 382  **Example:**
383 383  
... ... @@ -423,699 +423,300 @@
423 423  The payload decoder function for TTN V3 is here:
424 424  
425 425  (((
426 -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/]]
415 +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/]]
427 427  )))
428 428  
429 429  
430 430  
431 -== 2.4  Uplink Interval ==
420 +== 2.4  Downlink Payload ==
432 432  
433 -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"]]
422 +By default, LDDS20 prints the downlink payload to console port.
434 434  
424 +[[image:image-20220615100930-15.png]]
435 435  
436 436  
437 -== 2.5  ​Show Data in DataCake IoT Server ==
427 +**Examples:**
438 438  
439 -(((
440 -[[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:
441 -)))
442 442  
443 -(((
444 -
445 -)))
430 +* (% style="color:blue" %)**Set TDC**
446 446  
447 -(((
448 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
449 -)))
432 +If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
450 450  
451 -(((
452 -(% 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:**
453 -)))
434 +Payload:    01 00 00 1E    TDC=30S
454 454  
436 +Payload:    01 00 00 3C    TDC=60S
455 455  
456 -[[image:1654592790040-760.png]]
457 457  
439 +* (% style="color:blue" %)**Reset**
458 458  
459 -[[image:1654592800389-571.png]]
441 +If payload = 0x04FF, it will reset the LDDS20
460 460  
461 461  
462 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
444 +* (% style="color:blue" %)**CFM**
463 463  
464 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
446 +Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
465 465  
466 -[[image:1654851029373-510.png]]
467 467  
468 468  
469 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
450 +== 2.5  ​Show Data in DataCake IoT Server ==
470 470  
471 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
472 -
473 -
474 -
475 -== 2.6  Frequency Plans ==
476 -
477 477  (((
478 -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.
453 +[[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:
479 479  )))
480 480  
481 -
482 -
483 -=== 2.6.1  EU863-870 (EU868) ===
484 -
485 485  (((
486 -(% style="color:blue" %)**Uplink:**
487 -)))
488 -
489 -(((
490 -868.1 - SF7BW125 to SF12BW125
491 -)))
492 -
493 -(((
494 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
495 -)))
496 -
497 -(((
498 -868.5 - SF7BW125 to SF12BW125
499 -)))
500 -
501 -(((
502 -867.1 - SF7BW125 to SF12BW125
503 -)))
504 -
505 -(((
506 -867.3 - SF7BW125 to SF12BW125
507 -)))
508 -
509 -(((
510 -867.5 - SF7BW125 to SF12BW125
511 -)))
512 -
513 -(((
514 -867.7 - SF7BW125 to SF12BW125
515 -)))
516 -
517 -(((
518 -867.9 - SF7BW125 to SF12BW125
519 -)))
520 -
521 -(((
522 -868.8 - FSK
523 -)))
524 -
525 -(((
526 526  
527 527  )))
528 528  
529 529  (((
530 -(% style="color:blue" %)**Downlink:**
461 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
531 531  )))
532 532  
533 533  (((
534 -Uplink channels 1-9 (RX1)
465 +(% 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:**
535 535  )))
536 536  
537 -(((
538 -869.525 - SF9BW125 (RX2 downlink only)
539 -)))
540 540  
469 +[[image:1654592790040-760.png]]
541 541  
542 542  
543 -=== 2.6.2  US902-928(US915) ===
472 +[[image:1654592800389-571.png]]
544 544  
545 -(((
546 -Used in USA, Canada and South America. Default use CHE=2
547 547  
548 -(% style="color:blue" %)**Uplink:**
475 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
549 549  
550 -903.9 - SF7BW125 to SF10BW125
477 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
551 551  
552 -904.1 - SF7BW125 to SF10BW125
479 +[[image:1654851029373-510.png]]
553 553  
554 -904.3 - SF7BW125 to SF10BW125
555 555  
556 -904.5 - SF7BW125 to SF10BW125
482 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
557 557  
558 -904.7 - SF7BW125 to SF10BW125
484 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
559 559  
560 -904.9 - SF7BW125 to SF10BW125
561 561  
562 -905.1 - SF7BW125 to SF10BW125
563 563  
564 -905.3 - SF7BW125 to SF10BW125
488 +== 2.6  LED Indicator ==
565 565  
490 +The LDDS20 has an internal LED which is to show the status of different state.
566 566  
567 -(% style="color:blue" %)**Downlink:**
568 568  
569 -923.3 - SF7BW500 to SF12BW500
493 +* Blink once when device power on.
494 +* The device detects the sensor and flashes 5 times.
495 +* Solid ON for 5 seconds once device successful Join the network.
496 +* Blink once when device transmit a packet.
570 570  
571 -923.9 - SF7BW500 to SF12BW500
572 572  
573 -924.5 - SF7BW500 to SF12BW500
574 574  
575 -925.1 - SF7BW500 to SF12BW500
500 +== 2.7  ​Firmware Change Log ==
576 576  
577 -925.7 - SF7BW500 to SF12BW500
578 578  
579 -926.3 - SF7BW500 to SF12BW500
580 -
581 -926.9 - SF7BW500 to SF12BW500
582 -
583 -927.5 - SF7BW500 to SF12BW500
584 -
585 -923.3 - SF12BW500(RX2 downlink only)
586 -
587 -
588 -
589 -)))
590 -
591 -=== 2.6.3  CN470-510 (CN470) ===
592 -
593 593  (((
594 -Used in China, Default use CHE=1
504 +**Firmware download link:  **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
595 595  )))
596 596  
597 597  (((
598 -(% style="color:blue" %)**Uplink:**
599 -)))
600 -
601 -(((
602 -486.3 - SF7BW125 to SF12BW125
603 -)))
604 -
605 -(((
606 -486.5 - SF7BW125 to SF12BW125
607 -)))
608 -
609 -(((
610 -486.7 - SF7BW125 to SF12BW125
611 -)))
612 -
613 -(((
614 -486.9 - SF7BW125 to SF12BW125
615 -)))
616 -
617 -(((
618 -487.1 - SF7BW125 to SF12BW125
619 -)))
620 -
621 -(((
622 -487.3 - SF7BW125 to SF12BW125
623 -)))
624 -
625 -(((
626 -487.5 - SF7BW125 to SF12BW125
627 -)))
628 -
629 -(((
630 -487.7 - SF7BW125 to SF12BW125
631 -)))
632 -
633 -(((
634 634  
635 635  )))
636 636  
637 637  (((
638 -(% style="color:blue" %)**Downlink:**
512 +**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
639 639  )))
640 640  
641 -(((
642 -506.7 - SF7BW125 to SF12BW125
643 -)))
644 644  
645 -(((
646 -506.9 - SF7BW125 to SF12BW125
647 -)))
648 648  
649 -(((
650 -507.1 - SF7BW125 to SF12BW125
651 -)))
517 +== 2.8  Battery Analysis ==
652 652  
653 -(((
654 -507.3 - SF7BW125 to SF12BW125
655 -)))
656 656  
657 -(((
658 -507.5 - SF7BW125 to SF12BW125
659 -)))
660 660  
661 -(((
662 -507.7 - SF7BW125 to SF12BW125
663 -)))
664 664  
665 -(((
666 -507.9 - SF7BW125 to SF12BW125
667 -)))
522 +=== 2.8.1  Battery Type ===
668 668  
669 -(((
670 -508.1 - SF7BW125 to SF12BW125
671 -)))
524 +The LDDS20 battery is a combination of a 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
672 672  
673 -(((
674 -505.3 - SF12BW125 (RX2 downlink only)
675 -)))
676 676  
527 +The battery related documents as below:
677 677  
678 -
679 -=== 2.6.4  AU915-928(AU915) ===
680 -
681 -(((
682 -Default use CHE=2
683 -
684 -(% style="color:blue" %)**Uplink:**
685 -
686 -916.8 - SF7BW125 to SF12BW125
687 -
688 -917.0 - SF7BW125 to SF12BW125
689 -
690 -917.2 - SF7BW125 to SF12BW125
691 -
692 -917.4 - SF7BW125 to SF12BW125
693 -
694 -917.6 - SF7BW125 to SF12BW125
695 -
696 -917.8 - SF7BW125 to SF12BW125
697 -
698 -918.0 - SF7BW125 to SF12BW125
699 -
700 -918.2 - SF7BW125 to SF12BW125
701 -
702 -
703 -(% style="color:blue" %)**Downlink:**
704 -
705 -923.3 - SF7BW500 to SF12BW500
706 -
707 -923.9 - SF7BW500 to SF12BW500
708 -
709 -924.5 - SF7BW500 to SF12BW500
710 -
711 -925.1 - SF7BW500 to SF12BW500
712 -
713 -925.7 - SF7BW500 to SF12BW500
714 -
715 -926.3 - SF7BW500 to SF12BW500
716 -
717 -926.9 - SF7BW500 to SF12BW500
718 -
719 -927.5 - SF7BW500 to SF12BW500
720 -
721 -923.3 - SF12BW500(RX2 downlink only)
722 -
723 -
724 -
529 +* (((
530 +[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
725 725  )))
726 -
727 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
728 -
729 -(((
730 -(% style="color:blue" %)**Default Uplink channel:**
532 +* (((
533 +[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
731 731  )))
732 -
733 -(((
734 -923.2 - SF7BW125 to SF10BW125
535 +* (((
536 +[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
735 735  )))
736 736  
737 -(((
738 -923.4 - SF7BW125 to SF10BW125
739 -)))
539 + [[image:image-20220615102527-16.png]]
740 740  
741 -(((
742 -
743 -)))
744 744  
745 -(((
746 -(% style="color:blue" %)**Additional Uplink Channel**:
747 -)))
748 748  
749 -(((
750 -(OTAA mode, channel added by JoinAccept message)
751 -)))
543 +== 2.8.2  Battery Note ==
752 752  
753 -(((
754 -
755 -)))
545 +The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to uplink data, then the battery life may be decreased.
756 756  
757 -(((
758 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
759 -)))
760 760  
761 -(((
762 -922.2 - SF7BW125 to SF10BW125
763 -)))
764 764  
765 -(((
766 -922.4 - SF7BW125 to SF10BW125
767 -)))
549 +=== 2.8.3  Replace the battery ===
768 768  
769 769  (((
770 -922.6 - SF7BW125 to SF10BW125
552 +You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won't be voltage drop between battery and main board.
771 771  )))
772 772  
773 773  (((
774 -922.8 - SF7BW125 to SF10BW125
775 -)))
776 -
777 -(((
778 -923.0 - SF7BW125 to SF10BW125
779 -)))
780 -
781 -(((
782 -922.0 - SF7BW125 to SF10BW125
783 -)))
784 -
785 -(((
786 786  
787 787  )))
788 788  
789 789  (((
790 -(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
560 +The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
791 791  )))
792 792  
793 -(((
794 -923.6 - SF7BW125 to SF10BW125
795 -)))
796 796  
797 -(((
798 -923.8 - SF7BW125 to SF10BW125
799 -)))
800 800  
801 -(((
802 -924.0 - SF7BW125 to SF10BW125
803 -)))
565 +== 2.8.4  Battery Life Analyze ==
804 804  
805 -(((
806 -924.2 - SF7BW125 to SF10BW125
807 -)))
567 +Dragino battery powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimate battery life:
808 808  
809 -(((
810 -924.4 - SF7BW125 to SF10BW125
811 -)))
569 +[[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
812 812  
813 -(((
814 -924.6 - SF7BW125 to SF10BW125
815 -)))
816 816  
817 -(((
818 -
819 -)))
820 820  
821 -(((
822 -(% style="color:blue" %)**Downlink:**
823 -)))
573 += 3.  Using the AT Commands =
824 824  
825 825  (((
826 -Uplink channels 1-8 (RX1)
827 -)))
828 -
829 829  (((
830 -923.2 - SF10BW125 (RX2)
831 -)))
832 -
833 -
834 -
835 -=== 2.6.6  KR920-923 (KR920) ===
836 -
837 -(((
838 -(% style="color:blue" %)**Default channel:**
839 -)))
840 -
841 -(((
842 -922.1 - SF7BW125 to SF12BW125
843 -)))
844 -
845 -(((
846 -922.3 - SF7BW125 to SF12BW125
847 -)))
848 -
849 -(((
850 -922.5 - SF7BW125 to SF12BW125
851 -)))
852 -
853 -(((
854 854  
855 855  )))
856 -
857 -(((
858 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
859 859  )))
860 860  
861 -(((
862 -922.1 - SF7BW125 to SF12BW125
863 -)))
581 +== 3.1  Access AT Commands ==
864 864  
865 -(((
866 -922.3 - SF7BW125 to SF12BW125
867 -)))
583 +LDDS20 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS20 for using AT command, as below.
868 868  
869 -(((
870 -922.5 - SF7BW125 to SF12BW125
871 -)))
872 872  
873 -(((
874 -922.7 - SF7BW125 to SF12BW125
875 -)))
586 +[[image:image-20220610172924-4.png||height="483" width="988"]]
876 876  
877 -(((
878 -922.9 - SF7BW125 to SF12BW125
879 -)))
880 880  
881 -(((
882 -923.1 - SF7BW125 to SF12BW125
883 -)))
589 +Or if you have below board, use below connection:
884 884  
885 -(((
886 -923.3 - SF7BW125 to SF12BW125
887 -)))
888 888  
889 -(((
890 -
891 -)))
592 +[[image:image-20220610172924-5.png]]
892 892  
893 -(((
894 -(% style="color:blue" %)**Downlink:**
895 -)))
896 896  
897 897  (((
898 -Uplink channels 1-7(RX1)
596 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS20. LDDS20 will output system info once power on as below:
899 899  )))
900 900  
901 -(((
902 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
903 -)))
904 904  
600 + [[image:image-20220610172924-6.png||height="601" width="860"]]
905 905  
602 +Below are the available commands, a more detailed AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/]].
906 906  
907 -=== 2.6.7  IN865-867 (IN865) ===
908 908  
909 -(((
910 -(% style="color:blue" %)**Uplink:**
911 -)))
605 +AT+<CMD>?  :  Help on <CMD>
912 912  
913 -(((
914 -865.0625 - SF7BW125 to SF12BW125
915 -)))
607 +AT+<CMD>  :  Run <CMD>
916 916  
917 -(((
918 -865.4025 - SF7BW125 to SF12BW125
919 -)))
609 +AT+<CMD>=<value>  :  Set the value
920 920  
921 -(((
922 -865.9850 - SF7BW125 to SF12BW125
923 -)))
611 +AT+<CMD>=?  :  Get the value
924 924  
925 -(((
926 -
927 -)))
928 928  
929 -(((
930 -(% style="color:blue" %)**Downlink:**
931 -)))
614 +**General Commands**      
932 932  
933 -(((
934 -Uplink channels 1-3 (RX1)
935 -)))
616 +AT                    : Attention       
936 936  
937 -(((
938 -866.550 - SF10BW125 (RX2)
939 -)))
618 +AT?                            : Short Help     
940 940  
620 +ATZ                            : MCU Reset    
941 941  
622 +AT+TDC           : Application Data Transmission Interval 
942 942  
943 -== 2.7  LED Indicator ==
944 944  
945 -The LDDS75 has an internal LED which is to show the status of different state.
625 +**Keys, IDs and EUIs management**
946 946  
627 +AT+APPEUI              : Application EUI      
947 947  
948 -* Blink once when device power on.
949 -* The device detects the sensor and flashes 5 times.
950 -* Solid ON for 5 seconds once device successful Join the network.
951 -* Blink once when device transmit a packet.
629 +AT+APPKEY              : Application Key     
952 952  
953 -== 2.8  ​Firmware Change Log ==
631 +AT+APPSKEY            : Application Session Key
954 954  
633 +AT+DADDR              : Device Address     
955 955  
956 -(((
957 -**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
958 -)))
635 +AT+DEUI                   : Device EUI     
959 959  
960 -(((
961 -
962 -)))
637 +AT+NWKID               : Network ID (You can enter this command change only after successful network connection) 
963 963  
964 -(((
965 -**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
966 -)))
639 +AT+NWKSKEY          : Network Session Key Joining and sending date on LoRa network  
967 967  
641 +AT+CFM          : Confirm Mode       
968 968  
643 +AT+CFS                     : Confirm Status       
969 969  
970 -== 2.9  Mechanical ==
645 +AT+JOIN          : Join LoRa? Network       
971 971  
647 +AT+NJM          : LoRa? Network Join Mode    
972 972  
973 -[[image:image-20220610172003-1.png]]
649 +AT+NJS                     : LoRa? Network Join Status    
974 974  
651 +AT+RECV                  : Print Last Received Data in Raw Format
975 975  
976 -[[image:image-20220610172003-2.png]]
653 +AT+RECVB                : Print Last Received Data in Binary Format      
977 977  
655 +AT+SEND                  : Send Text Data      
978 978  
657 +AT+SENB                  : Send Hexadecimal Data
979 979  
980 -== 2.10  Battery Analysis ==
981 981  
982 -=== 2.10.1  Battery Type ===
660 +**LoRa Network Management**
983 983  
984 -The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
662 +AT+ADR          : Adaptive Rate
985 985  
664 +AT+CLASS                : LoRa Class(Currently only support class A
986 986  
987 -The battery related documents as below:
666 +AT+DCS           : Duty Cycle Setting 
988 988  
989 -* (((
990 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
991 -)))
992 -* (((
993 -[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
994 -)))
995 -* (((
996 -[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
997 -)))
668 +AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
998 998  
999 - [[image:image-20220610172400-3.png]]
670 +AT+FCD           : Frame Counter Downlink       
1000 1000  
672 +AT+FCU           : Frame Counter Uplink   
1001 1001  
674 +AT+JN1DL                : Join Accept Delay1
1002 1002  
1003 -=== 2.10.2  Replace the battery ===
676 +AT+JN2DL                : Join Accept Delay2
1004 1004  
1005 -(((
1006 -You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won't be voltage drop between battery and main board.
1007 -)))
678 +AT+PNM                   : Public Network Mode   
1008 1008  
1009 -(((
1010 -
1011 -)))
680 +AT+RX1DL                : Receive Delay1      
1012 1012  
1013 -(((
1014 -The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
1015 -)))
682 +AT+RX2DL                : Receive Delay2      
1016 1016  
684 +AT+RX2DR               : Rx2 Window Data Rate 
1017 1017  
686 +AT+RX2FQ               : Rx2 Window Frequency
1018 1018  
1019 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
688 +AT+TXP           : Transmit Power
1020 1020  
1021 -(((
1022 -(((
1023 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
1024 -)))
1025 -)))
1026 1026  
1027 -* (((
1028 -(((
1029 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
1030 -)))
1031 -)))
1032 -* (((
1033 -(((
1034 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1035 -)))
1036 -)))
691 +**Information** 
1037 1037  
1038 -(((
1039 -(((
1040 -
1041 -)))
693 +AT+RSSI           : RSSI of the Last Received Packet   
1042 1042  
1043 -(((
1044 -There are two kinds of commands to configure LDDS75, they are:
1045 -)))
1046 -)))
695 +AT+SNR           : SNR of the Last Received Packet   
1047 1047  
1048 -* (((
1049 -(((
1050 -(% style="color:#4f81bd" %)** General Commands**.
1051 -)))
1052 -)))
697 +AT+VER           : Image Version and Frequency Band       
1053 1053  
1054 -(((
1055 -(((
1056 -These commands are to configure:
1057 -)))
1058 -)))
699 +AT+FDR           : Factory Data Reset
1059 1059  
1060 -* (((
1061 -(((
1062 -General system settings like: uplink interval.
1063 -)))
1064 -)))
1065 -* (((
1066 -(((
1067 -LoRaWAN protocol & radio related command.
1068 -)))
1069 -)))
701 +AT+PORT                  : Application Port    
1070 1070  
1071 -(((
1072 -(((
1073 -They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
1074 -)))
1075 -)))
703 +AT+CHS           : Get or Set Frequency (Unit: Hz) for Single Channel Mode
1076 1076  
1077 -(((
1078 -(((
1079 -
1080 -)))
1081 -)))
705 + AT+CHE                   : Get or Set eight channels mode, Only for US915, AU915, CN470
1082 1082  
1083 -* (((
1084 -(((
1085 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
1086 -)))
1087 -)))
1088 1088  
1089 -(((
1090 -(((
1091 -These commands only valid for LDDS75, as below:
1092 -)))
1093 -)))
1094 1094  
1095 -
1096 -
1097 -== 3.1  Access AT Commands ==
1098 -
1099 -LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
1100 -
1101 -[[image:image-20220610172924-4.png||height="483" width="988"]]
1102 -
1103 -
1104 -Or if you have below board, use below connection:
1105 -
1106 -
1107 -[[image:image-20220610172924-5.png]]
1108 -
1109 -
1110 -(((
1111 -In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below:
1112 -)))
1113 -
1114 -
1115 - [[image:image-20220610172924-6.png||height="601" width="860"]]
1116 -
1117 -
1118 -
1119 1119  == 3.2  Set Transmit Interval Time ==
1120 1120  
1121 1121  Feature: Change LoRaWAN End Node Transmit Interval.
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