EESchema Schematic File Version 2  date Tue 31 Aug 2010 12:31:28 PM EDT
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:special
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:valves
LIBS:arccont-cache
EELAYER 24  0
EELAYER END
$Descr A4 11700 8267
Sheet 1 1
Title ""
Date "31 aug 2010"
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L +5V #PWR01
U 1 1 4C7D1146
P 5600 5300
F 0 "#PWR01" H 5600 5390 20  0001 C CNN
F 1 "+5V" H 5600 5390 30  0000 C CNN
	1    5600 5300
	1    0    0    -1  
$EndComp
Wire Wire Line
	5600 5300 5600 5400
Wire Wire Line
	5600 5400 5800 5400
Wire Wire Line
	5800 5400 5800 5200
Wire Wire Line
	5800 5200 5900 5200
Wire Wire Line
	5900 5100 5700 5100
Wire Wire Line
	5900 4900 5500 4900
Wire Wire Line
	5900 4700 5300 4700
Wire Wire Line
	5900 4500 5100 4500
Wire Wire Line
	5900 4300 5200 4300
Wire Wire Line
	5900 4100 5400 4100
Wire Wire Line
	5900 3900 5600 3900
Wire Wire Line
	1350 6100 1350 6300
Wire Wire Line
	1400 3400 1400 3700
Wire Wire Line
	1400 3700 1600 3700
Wire Wire Line
	800  5650 800  5250
Connection ~ 800  4450
Wire Wire Line
	800  4850 800  4000
Wire Wire Line
	800  4000 1600 4000
Wire Wire Line
	3850 2550 3850 4400
Wire Wire Line
	3850 1500 3850 2050
Wire Wire Line
	1800 1500 3850 1500
Wire Wire Line
	1800 1650 4350 1650
Wire Wire Line
	2500 2800 2500 3000
Wire Wire Line
	5200 4300 5200 3400
Wire Wire Line
	5200 3400 3500 3400
Wire Wire Line
	5400 4100 5400 3600
Wire Wire Line
	5400 3600 3500 3600
Wire Wire Line
	5600 3900 5600 3800
Wire Wire Line
	5600 3800 3500 3800
Wire Wire Line
	5200 5500 5200 4600
Wire Wire Line
	5200 5500 3500 5500
Wire Wire Line
	5400 5300 5400 4800
Wire Wire Line
	5400 5300 3500 5300
Wire Wire Line
	5600 5100 5600 5000
Wire Wire Line
	5600 5100 3500 5100
Connection ~ 4350 4200
Wire Wire Line
	4350 4300 3500 4300
Connection ~ 4350 1650
Connection ~ 2800 1500
Wire Wire Line
	2400 1650 2400 1900
Wire Wire Line
	2400 2400 2800 2400
Wire Wire Line
	2400 2400 2400 2300
Connection ~ 2400 1150
Wire Wire Line
	2700 1150 2050 1150
Wire Wire Line
	1050 1500 950  1500
Wire Wire Line
	950  1500 950  800 
Wire Wire Line
	950  800  2050 800 
Wire Wire Line
	2050 800  2050 1150
Wire Wire Line
	2400 1050 2400 1150
Wire Wire Line
	1050 1650 950  1650
Wire Wire Line
	950  1650 950  2200
Wire Wire Line
	2800 2500 2800 2300
Connection ~ 2800 2400
Wire Wire Line
	2800 1500 2800 1900
Connection ~ 2400 1650
Wire Wire Line
	3500 4200 4350 4200
Wire Wire Line
	3850 4400 3500 4400
Wire Wire Line
	3500 5200 5500 5200
Wire Wire Line
	5500 5200 5500 4900
Wire Wire Line
	3500 5400 5300 5400
Wire Wire Line
	5300 5400 5300 4700
Wire Wire Line
	3500 5600 5100 5600
Wire Wire Line
	5100 5600 5100 4500
Wire Wire Line
	3500 3700 5500 3700
Wire Wire Line
	5500 3700 5500 4000
Wire Wire Line
	3500 3500 5300 3500
Wire Wire Line
	5300 3500 5300 4200
Wire Wire Line
	3500 3300 5100 3300
Wire Wire Line
	5100 3300 5100 4400
Wire Wire Line
	2500 5900 2500 6100
Wire Wire Line
	4350 1150 3200 1150
Wire Wire Line
	4350 2050 4350 1150
Wire Wire Line
	4350 2550 4350 4300
Wire Wire Line
	1400 4200 1600 4200
Wire Wire Line
	1400 4850 1400 4200
Connection ~ 1400 4450
Wire Wire Line
	1400 5250 1400 5450
Wire Wire Line
	1400 5450 800  5450
Connection ~ 800  5450
Wire Wire Line
	1600 3500 1200 3500
Wire Wire Line
	1200 3500 1200 3600
Wire Wire Line
	1350 6700 1350 6900
Wire Wire Line
	5500 4000 5900 4000
Wire Wire Line
	5300 4200 5900 4200
Wire Wire Line
	5100 4400 5900 4400
Wire Wire Line
	5200 4600 5900 4600
Wire Wire Line
	5400 4800 5900 4800
Wire Wire Line
	5600 5000 5900 5000
Wire Wire Line
	5700 5100 5700 5300
$Comp
L GND #PWR02
U 1 1 4C7D10E8
P 5700 5300
F 0 "#PWR02" H 5700 5300 30  0001 C CNN
F 1 "GND" H 5700 5230 30  0001 C CNN
	1    5700 5300
	1    0    0    -1  
$EndComp
$Comp
L CONN_14 P1
U 1 1 4C7D1001
P 6250 4550
F 0 "P1" V 6220 4550 60  0000 C CNN
F 1 "Controls" V 6330 4550 60  0000 C CNN
	1    6250 4550
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR03
U 1 1 4C79CF7B
P 1350 6900
F 0 "#PWR03" H 1350 6900 30  0001 C CNN
F 1 "GND" H 1350 6830 30  0001 C CNN
	1    1350 6900
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR04
U 1 1 4C79CF71
P 1350 6100
F 0 "#PWR04" H 1350 6190 20  0001 C CNN
F 1 "+5V" H 1350 6190 30  0000 C CNN
	1    1350 6100
	1    0    0    -1  
$EndComp
$Comp
L C C1
U 1 1 4C79CF5E
P 1350 6500
F 0 "C1" H 1400 6600 50  0000 L CNN
F 1 "1µF" H 1400 6400 50  0000 L CNN
	1    1350 6500
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR05
U 1 1 4C79CE97
P 1400 3400
F 0 "#PWR05" H 1400 3490 20  0001 C CNN
F 1 "+5V" H 1400 3490 30  0000 C CNN
	1    1400 3400
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR06
U 1 1 4C79CE7A
P 1200 3600
F 0 "#PWR06" H 1200 3600 30  0001 C CNN
F 1 "GND" H 1200 3530 30  0001 C CNN
	1    1200 3600
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR07
U 1 1 4C79CB2E
P 800 5650
F 0 "#PWR07" H 800 5650 30  0001 C CNN
F 1 "GND" H 800 5580 30  0001 C CNN
	1    800  5650
	1    0    0    -1  
$EndComp
$Comp
L C C2
U 1 1 4C79CB04
P 800 5050
F 0 "C2" H 850 5150 50  0000 L CNN
F 1 "27pf" H 850 4950 50  0000 L CNN
	1    800  5050
	1    0    0    -1  
$EndComp
$Comp
L C C3
U 1 1 4C79CADC
P 1400 5050
F 0 "C3" H 1450 5150 50  0000 L CNN
F 1 "27pf" H 1450 4950 50  0000 L CNN
	1    1400 5050
	1    0    0    -1  
$EndComp
$Comp
L CRYSTAL X1
U 1 1 4C79CA95
P 1100 4450
F 0 "X1" H 1100 4600 60  0000 C CNN
F 1 "12MHz" H 1100 4300 60  0000 C CNN
	1    1100 4450
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR08
U 1 1 4C79C93A
P 2500 6100
F 0 "#PWR08" H 2500 6100 30  0001 C CNN
F 1 "GND" H 2500 6030 30  0001 C CNN
	1    2500 6100
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR09
U 1 1 4C79C923
P 2500 2800
F 0 "#PWR09" H 2500 2890 20  0001 C CNN
F 1 "+5V" H 2500 2890 30  0000 C CNN
	1    2500 2800
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR010
U 1 1 4C79C33D
P 2800 2500
F 0 "#PWR010" H 2800 2500 30  0001 C CNN
F 1 "GND" H 2800 2430 30  0001 C CNN
	1    2800 2500
	1    0    0    -1  
$EndComp
$Comp
L ZENER D3
U 1 1 4C79C2F2
P 2800 2100
F 0 "D3" H 2800 2200 50  0000 C CNN
F 1 "3.6V" H 2800 2000 40  0000 C CNN
	1    2800 2100
	0    1    -1   0   
$EndComp
$Comp
L R R2
U 1 1 4C79C111
P 4350 2300
F 0 "R2" V 4430 2300 50  0000 C CNN
F 1 "68Ω" V 4350 2300 50  0000 C CNN
	1    4350 2300
	1    0    0    -1  
$EndComp
$Comp
L R R3
U 1 1 4C79C109
P 3850 2300
F 0 "R3" V 3930 2300 50  0000 C CNN
F 1 "68Ω" V 3850 2300 50  0000 C CNN
	1    3850 2300
	1    0    0    -1  
$EndComp
$Comp
L R R1
U 1 1 4C79C0F3
P 2950 1150
F 0 "R1" V 3030 1150 50  0000 C CNN
F 1 "1.5kΩ" V 2950 1150 50  0000 C CNN
	1    2950 1150
	0    -1   -1   0   
$EndComp
$Comp
L ZENER D2
U 1 1 4C79BF77
P 2400 2100
F 0 "D2" H 2400 2200 50  0000 C CNN
F 1 "3.6V" H 2400 2000 40  0000 C CNN
	1    2400 2100
	0    1    -1   0   
$EndComp
$Comp
L +5V #PWR011
U 1 1 4C79BDC2
P 2400 1050
F 0 "#PWR011" H 2400 1140 20  0001 C CNN
F 1 "+5V" H 2400 1140 30  0000 C CNN
	1    2400 1050
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR012
U 1 1 4C79BDAC
P 950 2200
F 0 "#PWR012" H 950 2200 30  0001 C CNN
F 1 "GND" H 950 2130 30  0001 C CNN
	1    950  2200
	1    0    0    -1  
$EndComp
$Comp
L USB J1
U 1 1 4C79BD0D
P 1450 1300
F 0 "J1" H 1400 1700 60  0000 C CNN
F 1 "USB" V 1200 1450 60  0000 C CNN
	1    1450 1300
	1    0    0    -1  
$EndComp
$Comp
L ATMEGA8-P IC1
U 1 1 4C79BAC2
P 2500 4400
F 0 "IC1" H 1800 5650 50  0000 L BNN
F 1 "ATMEGA8-P" H 2750 3000 50  0000 L BNN
F 2 "DIL28" H 3000 2925 50  0001 C CNN
	1    2500 4400
	1    0    0    -1  
$EndComp
$EndSCHEMATC