1 files changed, 0 insertions, 199 deletions
diff --git a/buttons.sch-bak b/buttons.sch-bak
deleted file mode 100644
index 4989669..0000000
--- a/buttons.sch-bak
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-EESchema Schematic File Version 4
-EELAYER 30 0
-EELAYER END
-$Descr A4 11693 8268
-encoding utf-8
-Sheet 3 4
-Title ""
-Date ""
-Rev ""
-Comp ""
-Comment1 ""
-Comment2 ""
-Comment3 ""
-Comment4 ""
-$EndDescr
-$Comp
-L Connector:Conn_01x08_Female J5
-U 1 1 5DDED974
-P 5200 1900
-F 0 "J5" V 5250 1450 50  0000 L CNN
-F 1 "Conn_01x08_Female" V 5250 1650 50  0000 L CNN
-F 2 "Connector_PinHeader_2.00mm:PinHeader_1x08_P2.00mm_Vertical" H 5200 1900 50  0001 C CNN
-F 3 "~" H 5200 1900 50  0001 C CNN
-	1    5200 1900
-	0    -1   -1   0   
-$EndComp
-Text HLabel 3450 3000 0    50   BiDi ~ 0
-VCC
-Text HLabel 3450 5250 0    50   BiDi ~ 0
-GND
-Text HLabel 3450 4650 0    50   Input ~ 0
-CLK
-$Comp
-L 74xx:74HC164 U6
-U 1 1 5DCCE5D7
-P 4400 3850
-F 0 "U6" H 4650 4300 50  0000 C CNN
-F 1 "74HC164" H 4150 4300 50  0000 C CNN
-F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 5300 3550 50  0001 C CNN
-F 3 "https://assets.nexperia.com/documents/data-sheet/74HC_HCT164.pdf" H 5300 3550 50  0001 C CNN
-	1    4400 3850
-	1    0    0    -1  
-$EndComp
-Text HLabel 3450 3850 0    50   Input ~ 0
-ROWS
-Wire Wire Line
-	4800 3550 4900 3550
-Wire Wire Line
-	4800 3650 5000 3650
-Wire Wire Line
-	4800 3750 5100 3750
-Wire Wire Line
-	4800 3850 5200 3850
-Wire Wire Line
-	4400 5250 5800 5250
-Wire Wire Line
-	4400 3000 5800 3000
-Connection ~ 4400 3000
-Wire Wire Line
-	4000 4150 3900 4150
-Wire Wire Line
-	4000 3950 3900 3950
-Wire Wire Line
-	3900 3950 3900 3850
-Wire Wire Line
-	3900 3850 4000 3850
-Wire Wire Line
-	4000 3650 3900 3650
-Wire Wire Line
-	3900 3650 3900 3000
-Wire Wire Line
-	3900 3000 4400 3000
-Wire Wire Line
-	5300 3650 6100 3650
-Wire Wire Line
-	5400 3750 6100 3750
-Wire Wire Line
-	5500 3850 6100 3850
-Wire Wire Line
-	5600 3950 6100 3950
-Text HLabel 7100 3550 2    50   Output ~ 0
-COLUMNS
-NoConn ~ 4800 3950
-NoConn ~ 4800 4050
-NoConn ~ 4800 4150
-NoConn ~ 4800 4250
-NoConn ~ 6100 4350
-NoConn ~ 6100 4250
-NoConn ~ 6100 4150
-NoConn ~ 6100 4050
-NoConn ~ 6100 3550
-$Comp
-L 74xx:74LS166 U7
-U 1 1 5DCEF9EB
-P 6600 4250
-F 0 "U7" H 6800 5100 50  0000 L CNN
-F 1 "74LS166" H 6200 5100 50  0000 L CNN
-F 2 "Package_SO:SOIC-16_3.9x9.9mm_P1.27mm" H 6600 4250 50  0001 C CNN
-F 3 "http://www.ti.com/lit/gpn/sn74LS166" H 6600 4250 50  0001 C CNN
-	1    6600 4250
-	1    0    0    -1  
-$EndComp
-Wire Wire Line
-	3900 4150 3900 4650
-Wire Wire Line
-	3900 4650 6100 4650
-Wire Wire Line
-	6100 4950 6000 4950
-Wire Wire Line
-	6000 4950 6000 5250
-Connection ~ 6000 5250
-Wire Wire Line
-	6000 5250 6600 5250
-Wire Wire Line
-	6100 4750 6000 4750
-Wire Wire Line
-	6000 4750 6000 4950
-Connection ~ 6000 4950
-Text HLabel 3450 4550 0    50   Input ~ 0
-LOAD
-$Comp
-L Device:C C15
-U 1 1 5DE94356
-P 3650 3550
-F 0 "C15" H 3700 3650 50  0000 L CNN
-F 1 "C" H 3700 3450 50  0000 L CNN
-F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 3688 3400 50  0001 C CNN
-F 3 "~" H 3650 3550 50  0001 C CNN
-	1    3650 3550
-	1    0    0    -1  
-$EndComp
-$Comp
-L Device:C C16
-U 1 1 5DE96BB8
-P 5800 4200
-F 0 "C16" H 5850 4300 50  0000 L CNN
-F 1 "C" H 5850 4100 50  0000 L CNN
-F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 5838 4050 50  0001 C CNN
-F 3 "~" H 5800 4200 50  0001 C CNN
-	1    5800 4200
-	1    0    0    -1  
-$EndComp
-Wire Wire Line
-	5800 4350 5800 5250
-Connection ~ 5800 5250
-Wire Wire Line
-	5800 5250 6000 5250
-Wire Wire Line
-	3450 3000 3650 3000
-Connection ~ 3900 3000
-Wire Wire Line
-	3450 5250 3650 5250
-Connection ~ 4400 5250
-Wire Wire Line
-	4400 4450 4400 5250
-Wire Wire Line
-	4400 3000 4400 3350
-Wire Wire Line
-	6600 3000 6600 3250
-Wire Wire Line
-	5800 4050 5800 3000
-Connection ~ 5800 3000
-Wire Wire Line
-	5800 3000 6600 3000
-Wire Wire Line
-	3650 3400 3650 3000
-Connection ~ 3650 3000
-Wire Wire Line
-	3650 3000 3900 3000
-Wire Wire Line
-	3650 3700 3650 5250
-Connection ~ 3650 5250
-Wire Wire Line
-	3650 5250 4400 5250
-Wire Wire Line
-	3450 4650 3900 4650
-Connection ~ 3900 4650
-Wire Wire Line
-	3450 4550 6100 4550
-Wire Wire Line
-	3450 3850 3900 3850
-Connection ~ 3900 3850
-Wire Wire Line
-	5600 2100 5600 3950
-Wire Wire Line
-	5500 2100 5500 3850
-Wire Wire Line
-	5400 2100 5400 3750
-Wire Wire Line
-	5300 2100 5300 3650
-Wire Wire Line
-	5200 2100 5200 3850
-Wire Wire Line
-	5100 2100 5100 3750
-Wire Wire Line
-	5000 2100 5000 3650
-Wire Wire Line
-	4900 2100 4900 3550
-$EndSCHEMATC