(kicad_pcb
	(version 20241229)
	(generator "pcbnew")
	(generator_version "9.0")
	(general
		(thickness 1.6)
		(legacy_teardrops no)
	)
	(paper "A4")
	(layers
		(0 "F.Cu" signal)
		(2 "B.Cu" signal)
		(9 "F.Adhes" user "F.Adhesive")
		(11 "B.Adhes" user "B.Adhesive")
		(13 "F.Paste" user)
		(15 "B.Paste" user)
		(5 "F.SilkS" user "F.Silkscreen")
		(7 "B.SilkS" user "B.Silkscreen")
		(1 "F.Mask" user)
		(3 "B.Mask" user)
		(17 "Dwgs.User" user "User.Drawings")
		(19 "Cmts.User" user "User.Comments")
		(21 "Eco1.User" user "User.Eco1")
		(23 "Eco2.User" user "User.Eco2")
		(25 "Edge.Cuts" user)
		(27 "Margin" user)
		(31 "F.CrtYd" user "F.Courtyard")
		(29 "B.CrtYd" user "B.Courtyard")
		(35 "F.Fab" user)
		(33 "B.Fab" user)
		(39 "User.1" user)
		(41 "User.2" user)
		(43 "User.3" user)
		(45 "User.4" user)
		(47 "User.5" user)
		(49 "User.6" user)
		(51 "User.7" user)
		(53 "User.8" user)
		(55 "User.9" user)
	)
	(setup
		(pad_to_mask_clearance 0)
		(allow_soldermask_bridges_in_footprints no)
		(tenting front back)
		(pcbplotparams
			(layerselection 0x00000000_00000000_55555555_57555553)
			(plot_on_all_layers_selection 0x00000000_00000000_00000000_00000000)
			(disableapertmacros no)
			(usegerberextensions no)
			(usegerberattributes yes)
			(usegerberadvancedattributes yes)
			(creategerberjobfile yes)
			(dashed_line_dash_ratio 12.000000)
			(dashed_line_gap_ratio 3.000000)
			(svgprecision 4)
			(plotframeref no)
			(mode 1)
			(useauxorigin no)
			(hpglpennumber 1)
			(hpglpenspeed 20)
			(hpglpendiameter 15.000000)
			(pdf_front_fp_property_popups yes)
			(pdf_back_fp_property_popups yes)
			(pdf_metadata yes)
			(pdf_single_document no)
			(dxfpolygonmode yes)
			(dxfimperialunits yes)
			(dxfusepcbnewfont yes)
			(psnegative no)
			(psa4output no)
			(plot_black_and_white yes)
			(plotinvisibletext no)
			(sketchpadsonfab no)
			(plotpadnumbers no)
			(hidednponfab no)
			(sketchdnponfab yes)
			(crossoutdnponfab yes)
			(subtractmaskfromsilk no)
			(outputformat 1)
			(mirror no)
			(drillshape 0)
			(scaleselection 1)
			(outputdirectory "gerber")
		)
	)
	(net 0 "")
	(net 1 "Net-(D1-A)")
	(net 2 "unconnected-(U2-EXP-Pad21)")
	(net 3 "PWR_GND")
	(net 4 "/CTS")
	(net 5 "PWR_5V")
	(net 6 "Net-(U2-PA1)")
	(net 7 "/RTS")
	(net 8 "/TX")
	(net 9 "/RX")
	(net 10 "/PA3")
	(net 11 "/PA2")
	(net 12 "/PC2")
	(net 13 "/PC1")
	(net 14 "/PC3")
	(net 15 "/PC0")
	(net 16 "/PB2")
	(net 17 "/PA5")
	(net 18 "/PB1")
	(net 19 "/PA6")
	(net 20 "/PB3")
	(net 21 "/PA4")
	(net 22 "/PB5")
	(net 23 "/PA7")
	(net 24 "/PB4")
	(net 25 "/PB0")
	(footprint "footprints:MountingHole_3.2mm_M3"
		(layer "F.Cu")
		(at 142.24 101.6)
		(descr "Mounting Hole 3.2mm, no annular, M3")
		(tags "mounting hole 3.2mm no annular m3")
		(property "Reference" "H2"
			(at 0 -4.2 0)
			(layer "F.SilkS")
		)
		(property "Value" "MountingHole"
			(at 0 4.2 0)
			(layer "F.Fab")
		)
		(property "Datasheet" ""
			(at 0 0 0)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(property "Description" "Mounting Hole without connection"
			(at 0 0 0)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(attr exclude_from_pos_files exclude_from_bom)
		(fp_text user "${REFERENCE}"
			(at 0 0 0)
			(layer "F.Fab")
		)
		(pad "" np_thru_hole circle
			(at 0 0)
			(size 3.2 3.2)
			(drill 3.2)
			(layers "*.Cu" "*.Mask")
			(clearance 1.9)
		)
		(embedded_fonts no)
	)
	(footprint "footprints:MountingHole_3.2mm_M3"
		(layer "F.Cu")
		(at 109.22 78.74)
		(descr "Mounting Hole 3.2mm, no annular, M3")
		(tags "mounting hole 3.2mm no annular m3")
		(property "Reference" "H2"
			(at 0 -4.2 0)
			(layer "F.SilkS")
		)
		(property "Value" "MountingHole"
			(at 0 4.2 0)
			(layer "F.Fab")
		)
		(property "Datasheet" ""
			(at 0 0 0)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(property "Description" "Mounting Hole without connection"
			(at 0 0 0)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(attr exclude_from_pos_files exclude_from_bom)
		(fp_text user "${REFERENCE}"
			(at 0 0 0)
			(layer "F.Fab")
		)
		(pad "" np_thru_hole circle
			(at 0 0)
			(size 3.2 3.2)
			(drill 3.2)
			(layers "*.Cu" "*.Mask")
			(clearance 1.9)
		)
		(embedded_fonts no)
	)
	(footprint "footprints:MountingHole_3.2mm_M3"
		(layer "F.Cu")
		(at 142.24 78.74)
		(descr "Mounting Hole 3.2mm, no annular, M3")
		(tags "mounting hole 3.2mm no annular m3")
		(property "Reference" "H2"
			(at 0 -4.2 0)
			(layer "F.SilkS")
		)
		(property "Value" "MountingHole"
			(at 0 4.2 0)
			(layer "F.Fab")
		)
		(property "Datasheet" ""
			(at 0 0 0)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(property "Description" "Mounting Hole without connection"
			(at 0 0 0)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(attr exclude_from_pos_files exclude_from_bom)
		(fp_text user "${REFERENCE}"
			(at 0 0 0)
			(layer "F.Fab")
		)
		(pad "" np_thru_hole circle
			(at 0 0)
			(size 3.2 3.2)
			(drill 3.2)
			(layers "*.Cu" "*.Mask")
			(clearance 1.9)
		)
		(embedded_fonts no)
	)
	(footprint "fab:PinSocket_01x06_P2.54mm_Vertical_SMD"
		(layer "F.Cu")
		(at 134.62 88.9)
		(descr "https://media.digikey.com/pdf/Data%20Sheets/Sullins%20PDFs/NPxCxx1KFXx-RC%2010487-D.pdf")
		(tags "vertical pin socket SMD 2.54mm")
		(property "Reference" "J1"
			(at 0 -7.239 180)
			(layer "F.SilkS")
		)
		(property "Value" "PinHeader_01x06_P2.54mm_Horizontal_SMD"
			(at 0 11.43 0)
			(layer "F.Fab")
		)
		(property "Datasheet" ""
			(at 0 0 0)
			(layer "F.Fab")
			(hide yes)
		)
		(property "Description" "Generic connector, single row, 01x06, script generated"
			(at 0 0 0)
			(layer "F.Fab")
			(hide yes)
		)
		(property ki_fp_filters "Connector*:*_1x??_*")
		(sheetname "/")
		(sheetfile "ATtiny_QFN.kicad_sch")
		(attr smd)
		(fp_text user "${REFERENCE}"
			(at 0 0 90)
			(layer "F.Fab")
		)
		(pad "1" smd rect
			(at 1.65 -5.08)
			(size 2 1)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(net 3 "PWR_GND")
			(pinfunction "Pin_1")
			(pintype "passive")
		)
		(pad "2" smd rect
			(at -1.65 -2.54)
			(size 2 1)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(net 4 "/CTS")
			(pinfunction "Pin_2")
			(pintype "passive")
		)
		(pad "3" smd rect
			(at 1.65 0)
			(size 2 1)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(net 5 "PWR_5V")
			(pinfunction "Pin_3")
			(pintype "passive")
		)
		(pad "4" smd rect
			(at -1.65 2.54)
			(size 2 1)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(net 8 "/TX")
			(pinfunction "Pin_4")
			(pintype "passive")
		)
		(pad "5" smd rect
			(at 1.65 5.08)
			(size 2 1)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(net 9 "/RX")
			(pinfunction "Pin_5")
			(pintype "passive")
		)
		(pad "6" smd rect
			(at -1.65 7.62)
			(size 2 1)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(net 7 "/RTS")
			(pinfunction "Pin_6")
			(pintype "passive")
		)
		(embedded_fonts no)
		(model "${FAB}/fab.3dshapes/PinSocket-01x05_P2.54mm_Vertical_SMD.step"
			(offset
				(xyz 0 0 0)
			)
			(scale
				(xyz 1 1 1)
			)
			(rotate
				(xyz 0 0 0)
			)
		)
	)
	(footprint "Capacitor_SMD:C_0805_2012Metric"
		(layer "F.Cu")
		(at 121.158 88.9 90)
		(descr "Capacitor SMD 0805 (2012 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: IPC-SM-782 page 76, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf, https://docs.google.com/spreadsheets/d/1BsfQQcO9C6DZCsRaXUlFlo91Tg2WpOkGARC1WS5S8t0/edit?usp=sharing), generated with kicad-footprint-generator")
		(tags "capacitor")
		(property "Reference" "Ce1"
			(at 0 -1.68 90)
			(layer "F.SilkS")
		)
		(property "Value" "C_1206"
			(at 0 1.68 90)
			(layer "F.Fab")
		)
		(property "Datasheet" "https://www.yageo.com/upload/media/product/productsearch/datasheet/mlcc/UPY-GP_NP0_16V-to-50V_18.pdf"
			(at 0 0 90)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(property "Description" "Unpolarized capacitor, SMD, 1206"
			(at 0 0 90)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(property ki_fp_filters "*C*")
		(sheetname "/")
		(sheetfile "ATtiny_QFN.kicad_sch")
		(attr smd)
		(fp_text user "${REFERENCE}"
			(at 0 0 90)
			(layer "F.Fab")
		)
		(pad "1" smd roundrect
			(at -0.95 0 90)
			(size 1 1.45)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.25)
			(net 5 "PWR_5V")
			(pintype "passive")
		)
		(pad "2" smd roundrect
			(at 0.95 0 90)
			(size 1 1.45)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.25)
			(net 3 "PWR_GND")
			(pintype "passive")
		)
		(embedded_fonts no)
		(model "${KICAD9_3DMODEL_DIR}/Capacitor_SMD.3dshapes/C_0805_2012Metric.wrl"
			(offset
				(xyz 0 0 0)
			)
			(scale
				(xyz 1 1 1)
			)
			(rotate
				(xyz 0 0 0)
			)
		)
	)
	(footprint "Diode_SMD:D_0805_2012Metric"
		(layer "F.Cu")
		(at 127.254 90.932 90)
		(descr "Diode SMD 0805 (2012 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: https://docs.google.com/spreadsheets/d/1BsfQQcO9C6DZCsRaXUlFlo91Tg2WpOkGARC1WS5S8t0/edit?usp=sharing), generated with kicad-footprint-generator")
		(tags "diode")
		(property "Reference" "D1"
			(at 0 -1.65 90)
			(layer "F.SilkS")
		)
		(property "Value" "LED_1206"
			(at 0 1.65 90)
			(layer "F.Fab")
		)
		(property "Datasheet" "https://optoelectronics.liteon.com/upload/download/DS-22-98-0002/LTST-C150CKT.pdf"
			(at 0 0 90)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(property "Description" "Light emitting diode, Lite-On Inc. LTST, SMD"
			(at 0 0 90)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(property ki_fp_filters "*LED*1206*")
		(sheetname "/")
		(sheetfile "ATtiny_QFN.kicad_sch")
		(attr smd)
		(fp_text user "${REFERENCE}"
			(at 0 0 90)
			(layer "F.Fab")
		)
		(pad "1" smd roundrect
			(at -0.9375 0 90)
			(size 0.975 1.4)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.25)
			(net 3 "PWR_GND")
			(pinfunction "K")
			(pintype "passive")
		)
		(pad "2" smd roundrect
			(at 0.9375 0 90)
			(size 0.975 1.4)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.25)
			(net 1 "Net-(D1-A)")
			(pinfunction "A")
			(pintype "passive")
		)
		(embedded_fonts no)
		(model "${KICAD9_3DMODEL_DIR}/Diode_SMD.3dshapes/D_0805_2012Metric.wrl"
			(offset
				(xyz 0 0 0)
			)
			(scale
				(xyz 1 1 1)
			)
			(rotate
				(xyz 0 0 0)
			)
		)
	)
	(footprint "footprints:QFN40P300X300X90-21N"
		(layer "F.Cu")
		(at 121.728 93.256 -90)
		(property "Reference" "U2"
			(at 0.05 2.8 90)
			(layer "F.SilkS")
		)
		(property "Value" "ATTINY1626-MU"
			(at 10.595 3.135 90)
			(layer "F.Fab")
		)
		(property "Datasheet" ""
			(at 0 0 90)
			(layer "F.Fab")
			(hide yes)
		)
		(property "Description" ""
			(at 0 0 90)
			(layer "F.Fab")
			(hide yes)
		)
		(property "PARTREV" "Rev.B"
			(at 0 0 270)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(property "STANDARD" "IPC 7351B"
			(at 0 0 270)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(property "MAXIMUM_PACKAGE_HEIGHT" "0.9 mm"
			(at 0 0 270)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(property "MANUFACTURER" "Microchip"
			(at 0 0 270)
			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
		)
		(sheetname "/")
		(sheetfile "ATtiny_QFN.kicad_sch")
		(attr smd)
		(pad "1" smd roundrect
			(at -1.45 -0.8 270)
			(size 0.81 0.22)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 11 "/PA2")
			(pinfunction "PA2")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "2" smd roundrect
			(at -1.45 -0.4 270)
			(size 0.81 0.22)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 10 "/PA3")
			(pinfunction "PA3(EXTCLK)")
			(pintype "input")
			(solder_mask_margin 0.01)
		)
		(pad "3" smd roundrect
			(at -1.45 0 270)
			(size 0.81 0.22)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 3 "PWR_GND")
			(pinfunction "GND")
			(pintype "power_in")
			(solder_mask_margin 0.01)
		)
		(pad "4" smd roundrect
			(at -1.45 0.4 270)
			(size 0.81 0.22)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 5 "PWR_5V")
			(pinfunction "VDD")
			(pintype "power_in")
			(solder_mask_margin 0.01)
		)
		(pad "5" smd roundrect
			(at -1.45 0.8 270)
			(size 0.81 0.22)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 21 "/PA4")
			(pinfunction "PA4")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "6" smd roundrect
			(at -0.8 1.45 270)
			(size 0.22 0.81)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 17 "/PA5")
			(pinfunction "PA5")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "7" smd roundrect
			(at -0.4 1.45 270)
			(size 0.22 0.81)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 19 "/PA6")
			(pinfunction "PA6")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "8" smd roundrect
			(at 0 1.45 270)
			(size 0.22 0.81)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 23 "/PA7")
			(pinfunction "PA7")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "9" smd roundrect
			(at 0.4 1.45 270)
			(size 0.22 0.81)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 22 "/PB5")
			(pinfunction "PB5")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "10" smd roundrect
			(at 0.8 1.45 270)
			(size 0.22 0.81)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 24 "/PB4")
			(pinfunction "PB4")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "11" smd roundrect
			(at 1.45 0.8 270)
			(size 0.81 0.22)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 20 "/PB3")
			(pinfunction "PB3(TOSC1)")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "12" smd roundrect
			(at 1.45 0.4 270)
			(size 0.81 0.22)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 16 "/PB2")
			(pinfunction "PB2(TOSC2)")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "13" smd roundrect
			(at 1.45 0 270)
			(size 0.81 0.22)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 18 "/PB1")
			(pinfunction "PB1")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "14" smd roundrect
			(at 1.45 -0.4 270)
			(size 0.81 0.22)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 25 "/PB0")
			(pinfunction "PB0")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "15" smd roundrect
			(at 1.45 -0.8 270)
			(size 0.81 0.22)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 15 "/PC0")
			(pinfunction "PC0")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "16" smd roundrect
			(at 0.8 -1.45 270)
			(size 0.22 0.81)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 13 "/PC1")
			(pinfunction "PC1")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "17" smd roundrect
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			(size 0.22 0.81)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 12 "/PC2")
			(pinfunction "PC2")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "18" smd roundrect
			(at 0 -1.45 270)
			(size 0.22 0.81)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 14 "/PC3")
			(pinfunction "PC3")
			(pintype "bidirectional")
			(solder_mask_margin 0.01)
		)
		(pad "19" smd roundrect
			(at -0.4 -1.45 270)
			(size 0.22 0.81)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 9 "/RX")
			(pinfunction "PA0(UPDI/~{RESET})")
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			(solder_mask_margin 0.01)
		)
		(pad "20" smd roundrect
			(at -0.8 -1.45 270)
			(size 0.22 0.81)
			(layers "F.Cu" "F.Mask" "F.Paste")
			(roundrect_rratio 0.125)
			(net 6 "Net-(U2-PA1)")
			(pinfunction "PA1")
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			(solder_mask_margin 0.01)
		)
		(pad "21" smd rect
			(at 0 0 270)
			(size 1.7 1.7)
			(layers "F.Cu" "F.Mask")
			(net 2 "unconnected-(U2-EXP-Pad21)")
			(pinfunction "EXP")
			(pintype "power_in")
			(solder_mask_margin 0.01)
		)
		(embedded_fonts no)
	)
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		(layer "F.Cu")
		(at 130.556 92.456 90)
		(descr "Resistor SMD 0805 (2012 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: IPC-SM-782 page 72, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator")
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		)
		(property "Value" "4.7k"
			(at 0 1.65 90)
			(layer "F.Fab")
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		(property "Datasheet" ""
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			(unlocked yes)
			(layer "F.Fab")
			(hide yes)
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		(property "Description" "Resistor"
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			(layer "F.Fab")
			(hide yes)
		)
		(property ki_fp_filters "*R*1206*")
		(sheetname "/")
		(sheetfile "ATtiny_QFN.kicad_sch")
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		(fp_text user "${REFERENCE}"
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		(embedded_fonts no)
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				(xyz 0 0 0)
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		(embedded_fonts no)
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				(xyz 0 0 0)
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