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lnf-tag

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@khoanguyen-3fc

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KiCad projectAll 15 files, ready to open in KiCad666 KBSchematic PDFEvery sheet, to read or print52 KB3D modelThe board with its parts, for an enclosure (GLB)952 KB
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README

LnF Tag

OpenHaystack-based Lost and Found Tag

BOM

ReferenceQuantityDescription
U11E104-BT5005A module
C1, C22C0603 10pF
Y113215 32.768Mhz Crystal
PCB1Custom PCB
Battery2CR2032/CR2025/CR2016 with solder tabs

Battery life estimation

With the help of the XTAL, the power consumption is around 6.27uA.

Battery typeTypical CapacityEstimated life
2xCR20322x220mAh~8 years
2xCR20252x150mAh~5.4 years
2xCR20162x75mAh~2.7 years

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