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69	69	* Firmware upgradable via program port
70	70
71	71
72		-
73	73	== 1.3 Applications ==
74	74
75	75
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81	81	* Smart Factory
82	82
83	83
84		-
85	85	== 1.4 Dimension ==
86	86
87	87
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244	244
245	245
246	246	(((
247		-Example Payload Decoder in TTN V3: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
	245	+Example Payload Decoder in TTN V3: [[https:~~/~~/www.dropbox.com/sh/oi7buxzczrokwcy/AAA_iwAhbJvE0bSAapkmeYlga?dl=0>>https://www.dropbox.com/sh/oi7buxzczrokwcy/AAA_iwAhbJvE0bSAapkmeYlga?dl=0]]
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483	483	|(% style="width:184px" %)Send an uplink message|(% style="width:275px" %)(% style="color:green" %)**GREEN LED**(%%) blinks once
484	484	|(% style="width:184px" %)Got a downlink message|(% style="width:275px" %)(% style="color:blue" %)**BLUE LED**(%%) blinks once
485	485
486		-
487		-
488	488	= 5. Battery & How to replace =
489	489
490		-
491	491	== 5.1 Battery Type and replace ==
492	492
493		-
494	494	(((
495	495	LDS02 is equipped with 2 x AAA LR03 batteries. If the batteries running low (shows 2.1v in the platform). User can buy generic AAA battery and replace it.
496	496
497		-
498	498	(% style="color:red" %)**Note:**
499	499
500	500	1. The LDS02 doesn't have any screw, use can use nail to open it by the middle.
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516	516	[[image:1654675278044-307.png]]
517	517
518	518
519		-
520	520	== 5.2 Power Consumption Analyze ==
521	521
522		-
523	523	(((
524	524	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:
525	525	)))
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529	529	)))
530	530
531	531
532		-
533	533	= 6. Use AT Command =
534	534
535		-
536	536	== 6.1 Access AT Command ==
537	537
538		-
539	539	LDS02 supports AT Command set. User can use a USB to TTL adapter to configure LDS02 via use AT command, as below.
540	540
541		-
542	542	[[image:image-20220609085453-1.png]]
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544	544
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567	567	)))
568	568
569	569	(((
570		-When entering the first command, the (% style="color:red" %)**RED LED**(%%) will on and user can now input AT Commands. After input all needed AT Commands, please input **AT+CLPM=1** to set the device to work in Low Power mode and (% style="color:red" %)**RED LED**(%%) will be off.
	557	+When entering the first command, the (% style="color:red" %)**RED LED**(%%) will on and user can now input AT Commands. After input all needed AT Commands, please input AT+CLPM=1 to set the device to work in Low Power mode and (% style="color:red" %)**RED LED**(%%) will be off.
571	571	)))
572	572
573	573	(((
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575	575	)))
576	576
577	577
578		-
579	579	= 7. FAQ =
580	580
581		-
582	582	== 7.1 How to upgrade the image? ==
583	583
584		-
585	585	User can upgrade the of LDS02 for bug fix, new features, or change working region. The upgrade instruction is here: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
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587	587
588		-
589	589	== 7.2 How to change the LoRa Frequency Bands/Region? ==
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591		-
592	592	If user has for example US915 frequency and want to change it to AS923 frequency. User can follow the introduction for [[how to upgrade image>>||anchor="H7.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
593	593
594	594
595		-
596	596	== 7.3 Can I disable uplink for each event to save battery life? ==
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598		-
599	599	Yes, User can use below method to disable this:
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601	601
602		-(% style="color:blue" %)**via AT Command**:
	582	+(% style="color:#4f81bd" %)**via AT Command**:
603	603
604		-(% style="color:red" %)**AT+DISALARM=1**(%%), End node will only send packet in TDC time.
	584	+AT+DISALARM=1, End node will only send packet in TDC time.
605	605
606		-(% style="color:red" %)**AT+DISALARM=0**(%%), End node will send packet in TDC time or status change for door sensor.
	586	+AT+DISALARM=0, End node will send packet in TDC time or status change for door sensor.
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608	608
609		-(% style="color:blue" %)**via LoRaWAN downlink Command**:
	589	+(% style="color:#4f81bd" %)**via LoRaWAN downlink Command**:
610	610
611		-(% style="color:red" %)**0xA701**(%%) : Equal to AT+DISALARM=1
	591	+0xA701 : Equal to AT+DISALARM=1
612	612
613		-(% style="color:red" %)**0xA700**(%%) : Equal to AT+DISALARM=0
	593	+0xA700 : Equal to AT+DISALARM=0
614	614
615	615
616		-
617	617	= 8. Order Info =
618	618
619		-
620	620	**Part Number: (% style="color:blue" %)LDS02-XXX(%%)**
621	621
622	622	(% style="color:blue" %)**XXX:**
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631	631	* (% style="color:red" %)**IN865**(%%):  frequency bands  IN865
632	632	* (% style="color:red" %)**CN779**(%%): frequency bands CN779
633	633
634		-
635		-
636		-
637	637	= 9. Packing Info =
638	638
639		-
640	640	(((
641	641	**Package Includes**:
642	642	)))
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653	653	Device Size: 69.2 x 29.2 x 14.8 mm
654	654
655	655
656		-
657	657
658	658	)))
659	659
660	660	= 10. Support =
661	661
662		-
663	663	* 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.
664	664	* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
665	665
666		-
667	667