EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L MCU_Microchip_ATmega:ATmega8A-PU U1
U 1 1 5E54C24B
P 2250 3200
F 0 "U1" H 1800 4550 50  0000 C CNN
F 1 "ATmega8A-PU" H 2700 4550 50  0000 C CNN
F 2 "Package_DIP:DIP-28_W7.62mm" H 2250 3200 50  0001 C CIN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/Microchip%208bit%20mcu%20AVR%20ATmega8A%20data%20sheet%2040001974A.pdf" H 2250 3200 50  0001 C CNN
	1    2250 3200
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74HC595 U2
U 1 1 5E54D2F2
P 9300 1600
F 0 "U2" H 9050 2150 50  0000 C CNN
F 1 "74HC595" H 9550 2150 50  0000 C CNN
F 2 "" H 9300 1600 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/sn74hc595.pdf" H 9300 1600 50  0001 C CNN
	1    9300 1600
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74HC595 U3
U 1 1 5E54DF9A
P 9300 3500
F 0 "U3" H 9050 4050 50  0000 C CNN
F 1 "74HC595" H 9550 4050 50  0000 C CNN
F 2 "" H 9300 3500 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/sn74hc595.pdf" H 9300 3500 50  0001 C CNN
	1    9300 3500
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR?
U 1 1 5E54FA95
P 9300 950
F 0 "#PWR?" H 9300 800 50  0001 C CNN
F 1 "VCC" H 9317 1123 50  0000 C CNN
F 2 "" H 9300 950 50  0001 C CNN
F 3 "" H 9300 950 50  0001 C CNN
	1    9300 950 
	1    0    0    -1  
$EndComp
Wire Wire Line
	9300 950  9300 1000
$Comp
L power:VCC #PWR?
U 1 1 5E5508CD
P 9300 2850
F 0 "#PWR?" H 9300 2700 50  0001 C CNN
F 1 "VCC" H 9317 3023 50  0000 C CNN
F 2 "" H 9300 2850 50  0001 C CNN
F 3 "" H 9300 2850 50  0001 C CNN
	1    9300 2850
	1    0    0    -1  
$EndComp
Wire Wire Line
	9300 2850 9300 2900
$Comp
L power:GND #PWR?
U 1 1 5E550F46
P 9300 4250
F 0 "#PWR?" H 9300 4000 50  0001 C CNN
F 1 "GND" H 9305 4077 50  0000 C CNN
F 2 "" H 9300 4250 50  0001 C CNN
F 3 "" H 9300 4250 50  0001 C CNN
	1    9300 4250
	1    0    0    -1  
$EndComp
Wire Wire Line
	9300 4200 9300 4250
$Comp
L power:GND #PWR?
U 1 1 5E55166F
P 9300 2350
F 0 "#PWR?" H 9300 2100 50  0001 C CNN
F 1 "GND" H 9305 2177 50  0000 C CNN
F 2 "" H 9300 2350 50  0001 C CNN
F 3 "" H 9300 2350 50  0001 C CNN
	1    9300 2350
	1    0    0    -1  
$EndComp
Wire Wire Line
	9300 2300 9300 2350
Wire Wire Line
	8900 3100 8800 3100
Wire Wire Line
	8800 3100 8800 2600
Wire Wire Line
	8800 2600 9800 2600
Wire Wire Line
	9800 2600 9800 2100
Wire Wire Line
	9800 2100 9700 2100
Wire Wire Line
	9700 3300 10100 3300
Wire Wire Line
	9700 3400 10100 3400
Wire Wire Line
	9700 3500 10100 3500
Wire Wire Line
	9700 3600 10100 3600
Wire Wire Line
	9700 3700 10100 3700
Wire Wire Line
	9700 3800 10100 3800
$Comp
L 74xx:74HC595 U4
U 1 1 5E55A12A
P 9300 5450
F 0 "U4" H 9050 6000 50  0000 C CNN
F 1 "74HC595" H 9550 6000 50  0000 C CNN
F 2 "" H 9300 5450 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/sn74hc595.pdf" H 9300 5450 50  0001 C CNN
	1    9300 5450
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR?
U 1 1 5E55A134
P 9300 4800
F 0 "#PWR?" H 9300 4650 50  0001 C CNN
F 1 "VCC" H 9317 4973 50  0000 C CNN
F 2 "" H 9300 4800 50  0001 C CNN
F 3 "" H 9300 4800 50  0001 C CNN
	1    9300 4800
	1    0    0    -1  
$EndComp
Wire Wire Line
	9300 4800 9300 4850
$Comp
L power:GND #PWR?
U 1 1 5E55A13F
P 9300 6200
F 0 "#PWR?" H 9300 5950 50  0001 C CNN
F 1 "GND" H 9305 6027 50  0000 C CNN
F 2 "" H 9300 6200 50  0001 C CNN
F 3 "" H 9300 6200 50  0001 C CNN
	1    9300 6200
	1    0    0    -1  
$EndComp
Wire Wire Line
	9300 6150 9300 6200
Wire Wire Line
	8900 5050 8800 5050
Wire Wire Line
	8800 5050 8800 4550
Wire Wire Line
	9700 5050 10100 5050
Wire Wire Line
	9700 5150 10100 5150
Wire Wire Line
	9700 5250 10100 5250
Wire Wire Line
	9700 5350 10100 5350
Wire Wire Line
	9700 5450 10100 5450
Wire Wire Line
	9700 5550 10100 5550
Wire Wire Line
	9700 5650 10100 5650
Wire Wire Line
	9700 5750 10100 5750
Wire Wire Line
	8800 4550 9800 4550
Wire Wire Line
	9800 4550 9800 4000
Wire Wire Line
	9800 4000 9700 4000
Wire Wire Line
	9700 5950 10100 5950
NoConn ~ 10100 5950
$Comp
L Device:R_Small R1
U 1 1 5E551CDC
P 10200 3300
F 0 "R1" V 10250 3450 50  0000 C CNN
F 1 "10K" V 10250 3150 50  0000 C CNN
F 2 "" H 10200 3300 50  0001 C CNN
F 3 "~" H 10200 3300 50  0001 C CNN
	1    10200 3300
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R2
U 1 1 5E552336
P 10200 3400
F 0 "R2" V 10250 3550 50  0000 C CNN
F 1 "10K" V 10250 3250 50  0000 C CNN
F 2 "" H 10200 3400 50  0001 C CNN
F 3 "~" H 10200 3400 50  0001 C CNN
	1    10200 3400
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R3
U 1 1 5E5527C9
P 10200 3500
F 0 "R3" V 10250 3650 50  0000 C CNN
F 1 "10K" V 10250 3350 50  0000 C CNN
F 2 "" H 10200 3500 50  0001 C CNN
F 3 "~" H 10200 3500 50  0001 C CNN
	1    10200 3500
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R4
U 1 1 5E552DE4
P 10200 3600
F 0 "R4" V 10250 3750 50  0000 C CNN
F 1 "10K" V 10250 3450 50  0000 C CNN
F 2 "" H 10200 3600 50  0001 C CNN
F 3 "~" H 10200 3600 50  0001 C CNN
	1    10200 3600
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R5
U 1 1 5E553248
P 10200 3700
F 0 "R5" V 10250 3850 50  0000 C CNN
F 1 "10K" V 10250 3550 50  0000 C CNN
F 2 "" H 10200 3700 50  0001 C CNN
F 3 "~" H 10200 3700 50  0001 C CNN
	1    10200 3700
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R6
U 1 1 5E553793
P 10200 3800
F 0 "R6" V 10250 3950 50  0000 C CNN
F 1 "10K" V 10250 3650 50  0000 C CNN
F 2 "" H 10200 3800 50  0001 C CNN
F 3 "~" H 10200 3800 50  0001 C CNN
	1    10200 3800
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R7
U 1 1 5E553DF6
P 10200 5050
F 0 "R7" V 10250 5200 50  0000 C CNN
F 1 "10K" V 10250 4900 50  0000 C CNN
F 2 "" H 10200 5050 50  0001 C CNN
F 3 "~" H 10200 5050 50  0001 C CNN
	1    10200 5050
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R8
U 1 1 5E554351
P 10200 5150
F 0 "R8" V 10250 5300 50  0000 C CNN
F 1 "10K" V 10250 5000 50  0000 C CNN
F 2 "" H 10200 5150 50  0001 C CNN
F 3 "~" H 10200 5150 50  0001 C CNN
	1    10200 5150
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R9
U 1 1 5E5547F7
P 10200 5250
F 0 "R9" V 10250 5400 50  0000 C CNN
F 1 "10K" V 10250 5100 50  0000 C CNN
F 2 "" H 10200 5250 50  0001 C CNN
F 3 "~" H 10200 5250 50  0001 C CNN
	1    10200 5250
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R10
U 1 1 5E554C91
P 10200 5350
F 0 "R10" V 10250 5500 50  0000 C CNN
F 1 "10K" V 10250 5200 50  0000 C CNN
F 2 "" H 10200 5350 50  0001 C CNN
F 3 "~" H 10200 5350 50  0001 C CNN
	1    10200 5350
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R11
U 1 1 5E5551EB
P 10200 5450
F 0 "R11" V 10250 5600 50  0000 C CNN
F 1 "10K" V 10250 5300 50  0000 C CNN
F 2 "" H 10200 5450 50  0001 C CNN
F 3 "~" H 10200 5450 50  0001 C CNN
	1    10200 5450
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R12
U 1 1 5E55578C
P 10200 5550
F 0 "R12" V 10250 5700 50  0000 C CNN
F 1 "10K" V 10250 5400 50  0000 C CNN
F 2 "" H 10200 5550 50  0001 C CNN
F 3 "~" H 10200 5550 50  0001 C CNN
	1    10200 5550
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R13
U 1 1 5E555DED
P 10200 5650
F 0 "R13" V 10250 5800 50  0000 C CNN
F 1 "10K" V 10250 5500 50  0000 C CNN
F 2 "" H 10200 5650 50  0001 C CNN
F 3 "~" H 10200 5650 50  0001 C CNN
	1    10200 5650
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R14
U 1 1 5E556371
P 10200 5750
F 0 "R14" V 10250 5900 50  0000 C CNN
F 1 "10K" V 10250 5600 50  0000 C CNN
F 2 "" H 10200 5750 50  0001 C CNN
F 3 "~" H 10200 5750 50  0001 C CNN
	1    10200 5750
	0    -1   -1   0   
$EndComp
Wire Wire Line
	10300 3300 10800 3300
Wire Wire Line
	10300 3400 10800 3400
Wire Wire Line
	10300 3500 10800 3500
Wire Wire Line
	10300 3600 10800 3600
Wire Wire Line
	10300 3700 10800 3700
Wire Wire Line
	10300 3800 10800 3800
Wire Wire Line
	10300 5050 10800 5050
Wire Wire Line
	10300 5150 10800 5150
Wire Wire Line
	10300 5250 10800 5250
Wire Wire Line
	10300 5350 10800 5350
Wire Wire Line
	10300 5450 10800 5450
Wire Wire Line
	10300 5550 10800 5550
Wire Wire Line
	10300 5650 10800 5650
Wire Wire Line
	10300 5750 10800 5750
Wire Wire Line
	9700 1200 10800 1200
Wire Wire Line
	9700 1300 10800 1300
Wire Wire Line
	9700 1400 10800 1400
Wire Wire Line
	9700 1500 10800 1500
Wire Wire Line
	9700 1600 10800 1600
Wire Wire Line
	9700 1700 10800 1700
Wire Wire Line
	9700 1800 10800 1800
Wire Wire Line
	9700 1900 10800 1900
Wire Wire Line
	9700 3100 10800 3100
Wire Wire Line
	9700 3200 10800 3200
$EndSCHEMATC