1 files changed, 183 insertions, 0 deletions
diff --git a/buttons.sch b/buttons.sch
new file mode 100644
index 0000000..bee2474
--- /dev/null
+++ b/buttons.sch
@@ -0,0 +1,183 @@
+EESchema Schematic File Version 4
+LIBS:PinLock-cache
+EELAYER 30 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 2 4
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L 74xx:74LS323 U?
+U 1 1 5DDEC8F2
+P 2100 2100
+F 0 "U?" H 2350 2750 50  0000 C CNN
+F 1 "74LS323" H 1850 2750 50  0000 C CNN
+F 2 "" H 2100 2100 50  0001 C CNN
+F 3 "http://www.ti.com/lit/gpn/sn74LS323" H 2100 2100 50  0001 C CNN
+	1    2100 2100
+	1    0    0    -1  
+$EndComp
+$Comp
+L Connector:Conn_01x08_Female J?
+U 1 1 5DDED974
+P 3950 3050
+F 0 "J?" H 3978 3026 50  0000 L CNN
+F 1 "Conn_01x08_Female" H 3978 2935 50  0000 L CNN
+F 2 "" H 3950 3050 50  0001 C CNN
+F 3 "~" H 3950 3050 50  0001 C CNN
+	1    3950 3050
+	1    0    0    -1  
+$EndComp
+NoConn ~ 1600 1700
+Text HLabel 1600 1600 0    50   Input ~ 0
+ROWS
+Text HLabel 2600 3500 2    50   Output ~ 0
+COLUMNS
+Text HLabel 1050 1200 1    50   BiDi ~ 0
+VCC
+Text HLabel 1150 1200 1    50   BiDi ~ 0
+GND
+$Comp
+L 74xx:74LS323 U?
+U 1 1 5DDEF2AA
+P 2100 4000
+F 0 "U?" H 2350 4650 50  0000 C CNN
+F 1 "74LS323" H 1850 4650 50  0000 C CNN
+F 2 "" H 2100 4000 50  0001 C CNN
+F 3 "http://www.ti.com/lit/gpn/sn74LS323" H 2100 4000 50  0001 C CNN
+	1    2100 4000
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	1050 1200 1050 1300
+Wire Wire Line
+	1050 1300 1050 1900
+Wire Wire Line
+	1050 3200 2100 3200
+Connection ~ 1050 1300
+Wire Wire Line
+	1150 1200 1150 2000
+Wire Wire Line
+	1150 3000 2100 3000
+Wire Wire Line
+	1150 3000 1150 3900
+Wire Wire Line
+	1150 4900 2100 4900
+Connection ~ 1150 3000
+NoConn ~ 2600 3600
+NoConn ~ 1600 3600
+NoConn ~ 1600 3500
+NoConn ~ 2600 1600
+NoConn ~ 2600 1700
+NoConn ~ 2600 2200
+NoConn ~ 2600 2300
+NoConn ~ 2600 2400
+NoConn ~ 2600 2500
+NoConn ~ 2600 4100
+NoConn ~ 2600 4200
+NoConn ~ 2600 4300
+NoConn ~ 2600 4400
+Wire Wire Line
+	1050 1300 2100 1300
+Wire Wire Line
+	1600 1900 1050 1900
+Connection ~ 1050 1900
+Wire Wire Line
+	1050 1900 1050 2200
+Wire Wire Line
+	1600 2000 1150 2000
+Connection ~ 1150 2000
+Wire Wire Line
+	1150 2000 1150 3000
+Wire Wire Line
+	1050 3200 1050 3800
+Wire Wire Line
+	1050 3800 1600 3800
+Connection ~ 1050 3200
+Wire Wire Line
+	1600 3900 1150 3900
+Connection ~ 1150 3900
+Wire Wire Line
+	1150 3900 1150 4900
+Wire Wire Line
+	1600 2200 1050 2200
+Connection ~ 1050 2200
+Wire Wire Line
+	1050 2200 1050 3200
+Wire Wire Line
+	1050 3800 1050 4100
+Wire Wire Line
+	1050 4100 1600 4100
+Connection ~ 1050 3800
+Text HLabel 1250 1200 1    50   Input ~ 0
+CLK
+Wire Wire Line
+	1250 1200 1250 2400
+Wire Wire Line
+	1250 2400 1600 2400
+Wire Wire Line
+	1250 2400 1250 4300
+Wire Wire Line
+	1250 4300 1600 4300
+Connection ~ 1250 2400
+NoConn ~ 1600 2600
+NoConn ~ 1600 2700
+NoConn ~ 1600 4500
+NoConn ~ 1600 4600
+Wire Wire Line
+	2600 1800 3650 1800
+Wire Wire Line
+	3650 1800 3650 2750
+Wire Wire Line
+	3650 2750 3750 2750
+Wire Wire Line
+	2600 1900 3550 1900
+Wire Wire Line
+	3550 1900 3550 2850
+Wire Wire Line
+	3550 2850 3750 2850
+Wire Wire Line
+	2600 2000 3450 2000
+Wire Wire Line
+	3450 2000 3450 2950
+Wire Wire Line
+	3450 2950 3750 2950
+Wire Wire Line
+	2600 2100 3350 2100
+Wire Wire Line
+	3350 2100 3350 3050
+Wire Wire Line
+	3350 3050 3750 3050
+Wire Wire Line
+	2600 3700 3350 3700
+Wire Wire Line
+	3350 3700 3350 3150
+Wire Wire Line
+	3350 3150 3750 3150
+Wire Wire Line
+	2600 3800 3450 3800
+Wire Wire Line
+	3450 3800 3450 3250
+Wire Wire Line
+	3450 3250 3750 3250
+Wire Wire Line
+	2600 3900 3550 3900
+Wire Wire Line
+	3550 3900 3550 3350
+Wire Wire Line
+	3550 3350 3750 3350
+Wire Wire Line
+	2600 4000 3650 4000
+Wire Wire Line
+	3650 4000 3650 3450
+Wire Wire Line
+	3650 3450 3750 3450
+$EndSCHEMATC