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69	69	* Firmware upgradable via program port
70	70
71	71
72		-
73		-
74	74	== 1.3 Applications ==
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76	76
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82	82	* Smart Factory
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84	84
85		-
86		-
87	87	== 1.4 Dimension ==
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89	89
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485	485	|(% style="width:184px" %)Send an uplink message|(% style="width:275px" %)(% style="color:green" %)**GREEN LED**(%%) blinks once
486	486	|(% style="width:184px" %)Got a downlink message|(% style="width:275px" %)(% style="color:blue" %)**BLUE LED**(%%) blinks once
487	487
488		-
489		-
490	490	= 5. Battery & How to replace =
491	491
492		-
493	493	== 5.1 Battery Type and replace ==
494	494
495		-
496	496	(((
497	497	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.
498	498
499		-
500	500	(% style="color:red" %)**Note:**
501	501
502	502	1. The LDS02 doesn't have any screw, use can use nail to open it by the middle.
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518	518	[[image:1654675278044-307.png]]
519	519
520	520
521		-
522	522	== 5.2 Power Consumption Analyze ==
523	523
524		-
525	525	(((
526	526	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:
527	527	)))
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531	531	)))
532	532
533	533
534		-
535	535	= 6. Use AT Command =
536	536
537		-
538	538	== 6.1 Access AT Command ==
539	539
540		-
541	541	LDS02 supports AT Command set. User can use a USB to TTL adapter to configure LDS02 via use AT command, as below.
542	542
543		-
544	544	[[image:image-20220609085453-1.png]]
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546	546
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569	569	)))
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571	571	(((
572		-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.
573	573	)))
574	574
575	575	(((
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577	577	)))
578	578
579	579
580		-
581	581	= 7. FAQ =
582	582
583		-
584	584	== 7.1 How to upgrade the image? ==
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586		-
587	587	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]]
588	588
589	589
590		-
591	591	== 7.2 How to change the LoRa Frequency Bands/Region? ==
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593		-
594	594	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.
595	595
596	596
597		-
598	598	== 7.3 Can I disable uplink for each event to save battery life? ==
599	599
600		-
601	601	Yes, User can use below method to disable this:
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603	603
604		-(% style="color:blue" %)**via AT Command**:
	582	+(% style="color:#4f81bd" %)**via AT Command**:
605	605
606		-(% 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.
607	607
608		-(% 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.
609	609
610	610
611		-(% style="color:blue" %)**via LoRaWAN downlink Command**:
	589	+(% style="color:#4f81bd" %)**via LoRaWAN downlink Command**:
612	612
613		-(% style="color:red" %)**0xA701**(%%) : Equal to AT+DISALARM=1
	591	+0xA701 : Equal to AT+DISALARM=1
614	614
615		-(% style="color:red" %)**0xA700**(%%) : Equal to AT+DISALARM=0
	593	+0xA700 : Equal to AT+DISALARM=0
616	616
617	617
618		-
619	619	= 8. Order Info =
620	620
621		-
622	622	**Part Number: (% style="color:blue" %)LDS02-XXX(%%)**
623	623
624	624	(% style="color:blue" %)**XXX:**
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633	633	* (% style="color:red" %)**IN865**(%%):  frequency bands  IN865
634	634	* (% style="color:red" %)**CN779**(%%): frequency bands CN779
635	635
636		-
637		-
638		-
639		-
640	640	= 9. Packing Info =
641	641
642		-
643	643	(((
644	644	**Package Includes**:
645	645	)))
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656	656	Device Size: 69.2 x 29.2 x 14.8 mm
657	657
658	658
659		-
660	660
661	661	)))
662	662
663	663	= 10. Support =
664	664
665		-
666	666	* 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.
667	667	* 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]].
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669		-
670		-
671	671