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path: root/pressure_control/schematics/pressure_control.sch
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EESchema Schematic File Version 1
LIBS:power,./atmega8-16PI,device,conn,linear,regul,74xx,cmos4000,adc-dac,memory,xilinx,special,microcontrollers,dsp,microchip,analog_switches,motorola,texas,intel,audio,interface,digital-audio,philips,display,cypress,siliconi,contrib,valves
EELAYER 23  0
EELAYER END
$Descr A4 11700 8267
Sheet 1 1
Title "AVR based pressure control"
Date "29 may 2009"
Rev "0.1"
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
	7550 5750 7550 2800
Wire Wire Line
	7550 5750 7400 5750
Wire Wire Line
	7400 5750 7400 6200
Wire Wire Line
	7200 6050 7200 6200
Wire Wire Line
	7300 6050 7300 6200
Wire Wire Line
	6950 2900 7450 2900
Connection ~ 7900 2600
Wire Wire Line
	6950 3400 7900 3400
Wire Wire Line
	7900 3400 7900 2600
Wire Wire Line
	3500 7300 3900 7300
Wire Wire Line
	3900 7300 3900 4950
Wire Wire Line
	3900 4950 7350 4950
Wire Wire Line
	7350 4950 7350 3000
Wire Wire Line
	7350 3000 6950 3000
Wire Wire Line
	3500 5900 3700 5900
Wire Wire Line
	3700 5900 3700 4750
Wire Wire Line
	3700 4750 7150 4750
Wire Wire Line
	7150 4750 7150 3200
Wire Wire Line
	7150 3200 6950 3200
Wire Wire Line
	1150 5400 1500 5400
Wire Wire Line
	1150 6800 1500 6800
Wire Wire Line
	2100 5400 2650 5400
Wire Wire Line
	2100 6800 2650 6800
Wire Wire Line
	2950 7300 3000 7300
Wire Wire Line
	2950 5900 3000 5900
Wire Wire Line
	2650 6400 2650 6300
Wire Wire Line
	2650 5000 2650 4900
Wire Wire Line
	2650 5700 2650 5600
Wire Wire Line
	2650 7100 2650 7000
Wire Wire Line
	2950 5200 3000 5200
Wire Wire Line
	2950 6600 3000 6600
Wire Wire Line
	2100 7500 2650 7500
Wire Wire Line
	2100 6100 2650 6100
Wire Wire Line
	1150 7500 1500 7500
Wire Wire Line
	1150 6100 1500 6100
Wire Wire Line
	4350 4450 8100 4450
Wire Wire Line
	4350 4450 4350 1800
Wire Wire Line
	9250 2400 6950 2400
Wire Wire Line
	11000 5700 11000 5000
Wire Wire Line
	11000 5000 10200 5000
Wire Wire Line
	10650 4700 10450 4700
Wire Wire Line
	10450 4700 10450 4500
Wire Wire Line
	10450 4500 10200 4500
Connection ~ 10500 3900
Wire Wire Line
	10500 4000 10500 3900
Wire Wire Line
	8600 5200 8100 5200
Wire Wire Line
	8100 5200 8100 4450
Wire Wire Line
	4350 1800 4550 1800
Wire Wire Line
	4550 1900 4450 1900
Wire Wire Line
	10200 4800 10900 4800
Wire Wire Line
	10900 4800 10900 4300
Wire Wire Line
	8600 4400 8400 4400
Wire Wire Line
	8400 3900 8600 3900
Wire Wire Line
	8450 2900 8600 2900
Wire Wire Line
	6950 2100 7450 2100
Wire Wire Line
	7450 2100 7450 1100
Wire Wire Line
	7650 1100 7650 1200
Wire Wire Line
	6950 2200 7150 2200
Wire Wire Line
	7150 2200 7150 1100
Wire Wire Line
	4850 900  4950 900 
Wire Wire Line
	3500 1700 4050 1700
Wire Wire Line
	4050 1700 4050 2300
Wire Wire Line
	4050 2300 4550 2300
Wire Wire Line
	3500 3100 4050 3100
Wire Wire Line
	4050 3100 4050 2500
Wire Wire Line
	4050 2500 4550 2500
Wire Wire Line
	1150 1200 1500 1200
Wire Wire Line
	1150 2600 1500 2600
Wire Wire Line
	2100 1200 2650 1200
Wire Wire Line
	2100 2600 2650 2600
Wire Wire Line
	5550 4250 5550 4200
Wire Wire Line
	5650 950  5650 1000
Wire Wire Line
	2950 3100 3000 3100
Wire Wire Line
	2950 1700 3000 1700
Wire Wire Line
	2650 2200 2650 2100
Wire Wire Line
	2650 800  2650 700 
Wire Wire Line
	2650 1500 2650 1400
Wire Wire Line
	2650 2900 2650 2800
Wire Wire Line
	2950 1000 3000 1000
Wire Wire Line
	2950 2400 3000 2400
Wire Wire Line
	6050 950  6050 1000
Wire Wire Line
	5950 4200 5950 4250
Wire Wire Line
	2100 3300 2650 3300
Wire Wire Line
	2100 1900 2650 1900
Wire Wire Line
	1150 3300 1500 3300
Wire Wire Line
	1150 1900 1500 1900
Wire Wire Line
	3500 2400 4550 2400
Wire Wire Line
	3500 1000 4150 1000
Wire Wire Line
	4150 1000 4150 2200
Wire Wire Line
	4150 2200 4550 2200
Wire Wire Line
	5350 900  5450 900 
Wire Wire Line
	5450 900  5450 1000
Wire Wire Line
	7250 1200 7250 1100
Wire Wire Line
	7350 1100 7350 2300
Wire Wire Line
	7350 2300 6950 2300
Wire Wire Line
	8550 2600 8500 2600
Wire Wire Line
	10200 4300 10650 4300
Wire Wire Line
	8400 4300 8600 4300
Wire Wire Line
	8400 4800 8600 4800
Wire Wire Line
	10900 3900 10200 3900
Wire Wire Line
	4450 1900 4450 4350
Wire Wire Line
	4450 4350 8200 4350
Wire Wire Line
	8200 4350 8200 5000
Wire Wire Line
	8200 5000 8600 5000
Wire Wire Line
	10300 4500 10300 4600
Connection ~ 10300 4500
Wire Wire Line
	10700 5700 10700 5550
Wire Wire Line
	10200 5200 10900 5200
Wire Wire Line
	10900 5200 10900 5700
Wire Wire Line
	3500 5200 3600 5200
Wire Wire Line
	3600 5200 3600 4650
Wire Wire Line
	3600 4650 7050 4650
Wire Wire Line
	7050 4650 7050 3300
Wire Wire Line
	7050 3300 6950 3300
Wire Wire Line
	3500 6600 3800 6600
Wire Wire Line
	3800 6600 3800 4850
Wire Wire Line
	3800 4850 7250 4850
Wire Wire Line
	7250 4850 7250 3100
Wire Wire Line
	7250 3100 6950 3100
Wire Wire Line
	7550 1100 7550 2600
Wire Wire Line
	7550 2600 8000 2600
Wire Wire Line
	7900 2900 8050 2900
Connection ~ 7900 2900
Wire Wire Line
	7550 2800 6950 2800
Wire Wire Line
	7450 2900 7450 5650
Wire Wire Line
	7450 5650 5850 5650
Wire Wire Line
	5850 5650 5850 6200
Wire Wire Line
	5750 6050 5750 6200
Wire Wire Line
	5650 6050 5650 6200
NoConn ~ 6950 1900
NoConn ~ 6950 1800
$Comp
L +5V #PWR20
U 1 1 4A20046C
P 5650 6050
F 0 "#PWR20" H 5650 6140 20  0001 C C
F 1 "+5V" H 5650 6140 30  0000 C C
	1    5650 6050
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR24
U 1 1 4A200467
P 7200 6050
F 0 "#PWR24" H 7200 6140 20  0001 C C
F 1 "+5V" H 7200 6140 30  0000 C C
	1    7200 6050
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR21
U 1 1 4A20044B
P 5750 6050
F 0 "#PWR21" H 5750 6050 30  0001 C C
F 1 "GND" H 5750 5980 30  0001 C C
	1    5750 6050
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR26
U 1 1 4A200441
P 7300 6050
F 0 "#PWR26" H 7300 6050 30  0001 C C
F 1 "GND" H 7300 5980 30  0001 C C
	1    7300 6050
	-1   0    0    1   
$EndComp
NoConn ~ 5550 6200
NoConn ~ 5450 6200
NoConn ~ 5350 6200
NoConn ~ 7100 6200
NoConn ~ 7000 6200
NoConn ~ 6900 6200
$Comp
L CONN_6 P8
U 1 1 4A2003AF
P 7150 6550
F 0 "P8" V 7100 6550 60  0000 C C
F 1 "X/Y pressure sensor" V 7200 6550 60  0000 C C
	1    7150 6550
	0    1    1    0   
$EndComp
$Comp
L CONN_6 P7
U 1 1 4A2003A9
P 5600 6550
F 0 "P7" V 5550 6550 60  0000 C C
F 1 "Z pressure sensor" V 5650 6550 60  0000 C C
	1    5600 6550
	0    1    1    0   
$EndComp
Text Notes 600  5000 0    60   ~
Z Inlet/outlet valve control
$Comp
L +24V #PWR8
U 1 1 4A200275
P 1150 7500
F 0 "#PWR8" H 1150 7450 20  0001 C C
F 1 "+24V" H 1150 7600 30  0000 C C
	1    1150 7500
	0    -1   -1   0   
$EndComp
$Comp
L +24V #PWR7
U 1 1 4A200274
P 1150 6800
F 0 "#PWR7" H 1150 6750 20  0001 C C
F 1 "+24V" H 1150 6900 30  0000 C C
	1    1150 6800
	0    -1   -1   0   
$EndComp
$Comp
L +24V #PWR6
U 1 1 4A200273
P 1150 6100
F 0 "#PWR6" H 1150 6050 20  0001 C C
F 1 "+24V" H 1150 6200 30  0000 C C
	1    1150 6100
	0    -1   -1   0   
$EndComp
$Comp
L +24V #PWR5
U 1 1 4A200272
P 1150 5400
F 0 "#PWR5" H 1150 5350 20  0001 C C
F 1 "+24V" H 1150 5500 30  0000 C C
	1    1150 5400
	0    -1   -1   0   
$EndComp
$Comp
L INDUCTOR L6
U 1 1 4A200271
P 1800 6100
F 0 "L6" V 1750 6100 40  0000 C C
F 1 "Valve coil, 270 Ohms" V 1900 6100 40  0000 C C
	1    1800 6100
	0    1    1    0   
$EndComp
$Comp
L INDUCTOR L7
U 1 1 4A200270
P 1800 6800
F 0 "L7" V 1750 6800 40  0000 C C
F 1 "Valve coil, 270 Ohms" V 1900 6800 40  0000 C C
	1    1800 6800
	0    1    1    0   
$EndComp
$Comp
L INDUCTOR L8
U 1 1 4A20026F
P 1800 7500
F 0 "L8" V 1750 7500 40  0000 C C
F 1 "Valve coil, 270 Ohms" V 1900 7500 40  0000 C C
	1    1800 7500
	0    1    1    0   
$EndComp
$Comp
L INDUCTOR L5
U 1 1 4A20026E
P 1800 5400
F 0 "L5" V 1750 5400 40  0000 C C
F 1 "Valve coil, 270 Ohms" V 1900 5400 40  0000 C C
	1    1800 5400
	0    1    1    0   
$EndComp
$Comp
L R R17
U 1 1 4A20026D
P 3250 7300
F 0 "R17" V 3330 7300 50  0000 C C
F 1 "1.5k" V 3250 7300 50  0000 C C
	1    3250 7300
	0    1    1    0   
$EndComp
$Comp
L R R14
U 1 1 4A20026C
P 3250 5200
F 0 "R14" V 3330 5200 50  0000 C C
F 1 "1.5k" V 3250 5200 50  0000 C C
	1    3250 5200
	0    1    1    0   
$EndComp
$Comp
L R R16
U 1 1 4A20026B
P 3250 6600
F 0 "R16" V 3330 6600 50  0000 C C
F 1 "1.5k" V 3250 6600 50  0000 C C
	1    3250 6600
	0    1    1    0   
$EndComp
$Comp
L R R15
U 1 1 4A20026A
P 3250 5900
F 0 "R15" V 3330 5900 50  0000 C C
F 1 "1.5k" V 3250 5900 50  0000 C C
	1    3250 5900
	0    1    1    0   
$EndComp
$Comp
L GND #PWR13
U 1 1 4A200269
P 2650 4900
F 0 "#PWR13" H 2650 4900 30  0001 C C
F 1 "GND" H 2650 4830 30  0001 C C
	1    2650 4900
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR14
U 1 1 4A200268
P 2650 5600
F 0 "#PWR14" H 2650 5600 30  0001 C C
F 1 "GND" H 2650 5530 30  0001 C C
	1    2650 5600
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR16
U 1 1 4A200267
P 2650 7000
F 0 "#PWR16" H 2650 7000 30  0001 C C
F 1 "GND" H 2650 6930 30  0001 C C
	1    2650 7000
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR15
U 1 1 4A200266
P 2650 6300
F 0 "#PWR15" H 2650 6300 30  0001 C C
F 1 "GND" H 2650 6230 30  0001 C C
	1    2650 6300
	-1   0    0    1   
$EndComp
$Comp
L NPN Q8
U 1 1 4A200265
P 2750 7300
F 0 "Q8" H 2900 7300 50  0000 C C
F 1 "BD139" H 2652 7450 50  0000 C C
	1    2750 7300
	-1   0    0    1   
$EndComp
$Comp
L NPN Q5
U 1 1 4A200264
P 2750 5200
F 0 "Q5" H 2900 5200 50  0000 C C
F 1 "BD139" H 2652 5350 50  0000 C C
	1    2750 5200
	-1   0    0    1   
$EndComp
$Comp
L NPN Q7
U 1 1 4A200263
P 2750 6600
F 0 "Q7" H 2900 6600 50  0000 C C
F 1 "BD139" H 2652 6750 50  0000 C C
	1    2750 6600
	-1   0    0    1   
$EndComp
$Comp
L NPN Q6
U 1 1 4A200262
P 2750 5900
F 0 "Q6" H 2900 5900 50  0000 C C
F 1 "BD139" H 2652 6050 50  0000 C C
	1    2750 5900
	-1   0    0    1   
$EndComp
NoConn ~ 8600 5300
NoConn ~ 8600 5100
NoConn ~ 10200 5300
NoConn ~ 10200 5100
NoConn ~ 11100 5700
NoConn ~ 10800 5700
NoConn ~ 10600 5700
NoConn ~ 10500 5700
NoConn ~ 10400 5700
NoConn ~ 10300 5700
$Comp
L GND #PWR32
U 1 1 48EC97E3
P 10700 5550
F 0 "#PWR32" H 10700 5550 30  0001 C C
F 1 "GND" H 10700 5480 30  0001 C C
	1    10700 5550
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR30
U 1 1 48EC97C8
P 10300 4600
F 0 "#PWR30" H 10300 4600 30  0001 C C
F 1 "GND" H 10300 4530 30  0001 C C
	1    10300 4600
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR31
U 1 1 48EC97A6
P 10500 4000
F 0 "#PWR31" H 10500 4090 20  0001 C C
F 1 "+5V" H 10500 4090 30  0000 C C
	1    10500 4000
	-1   0    0    1   
$EndComp
$Comp
L CONN_9 P6
U 1 1 48EC976F
P 10700 6050
F 0 "P6" V 10650 6050 60  0000 C C
F 1 "RS232 serial" V 10750 6050 60  0000 C C
	1    10700 6050
	0    1    1    0   
$EndComp
Text Notes 8950 5750 0    60   ~
Control interface
NoConn ~ 4550 2000
$Comp
L C C7
U 1 1 48EC9158
P 10900 4100
F 0 "C7" H 10950 4200 50  0000 L C
F 1 "1uF" H 10950 4000 50  0000 L C
	1    10900 4100
	1    0    0    -1  
$EndComp
$Comp
L C C6
U 1 1 48EC9140
P 10650 4500
F 0 "C6" H 10700 4600 50  0000 L C
F 1 "1uF" H 10700 4400 50  0000 L C
	1    10650 4500
	1    0    0    -1  
$EndComp
$Comp
L C C5
U 1 1 48EC913A
P 8400 4600
F 0 "C5" H 8450 4700 50  0000 L C
F 1 "1uF" H 8450 4500 50  0000 L C
	1    8400 4600
	1    0    0    -1  
$EndComp
$Comp
L C C4
U 1 1 48EC912F
P 8400 4100
F 0 "C4" H 8450 4200 50  0000 L C
F 1 "1uF" H 8450 4000 50  0000 L C
	1    8400 4100
	1    0    0    -1  
$EndComp
$Comp
L MAX232 U3
U 1 1 48EC9022
P 9400 4600
F 0 "U3" H 9400 5450 70  0000 C C
F 1 "MAX232" H 9400 3750 70  0000 C C
	1    9400 4600
	1    0    0    -1  
$EndComp
NoConn ~ 6950 2000
NoConn ~ 6950 2500
NoConn ~ 4550 3100
NoConn ~ 4550 3000
NoConn ~ 4550 2100
NoConn ~ 9850 2400
$Comp
L CRYSTAL X1
U 1 1 48EBE465
P 9550 2400
F 0 "X1" H 9550 2550 60  0000 C C
F 1 "16Mhz clock source" H 9550 2250 60  0000 C C
	1    9550 2400
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR29
U 1 1 48EB4074
P 8600 2900
F 0 "#PWR29" H 8600 2900 30  0001 C C
F 1 "GND" H 8600 2830 30  0001 C C
	1    8600 2900
	0    -1   -1   0   
$EndComp
$Comp
L C C3
U 1 1 48EB4067
P 8250 2900
F 0 "C3" H 8300 3000 50  0000 L C
F 1 "47p" H 8300 2800 50  0000 L C
	1    8250 2900
	0    1    1    0   
$EndComp
$Comp
L +5V #PWR25
U 1 1 48EB400B
P 7250 1200
F 0 "#PWR25" H 7250 1290 20  0001 C C
F 1 "+5V" H 7250 1290 30  0000 C C
	1    7250 1200
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR27
U 1 1 48EB3FFE
P 7650 1200
F 0 "#PWR27" H 7650 1200 30  0001 C C
F 1 "GND" H 7650 1130 30  0001 C C
	1    7650 1200
	1    0    0    -1  
$EndComp
$Comp
L CONN_6 P5
U 1 1 48EB3FC9
P 7400 750
F 0 "P5" V 7350 750 60  0000 C C
F 1 "ISP" V 7450 750 60  0000 C C
	1    7400 750 
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR17
U 1 1 48EB3F38
P 4850 900
F 0 "#PWR17" H 4850 900 30  0001 C C
F 1 "GND" H 4850 830 30  0001 C C
	1    4850 900 
	0    1    1    0   
$EndComp
$Comp
L C C2
U 1 1 48EB3F22
P 5150 900
F 0 "C2" H 5200 1000 50  0000 L C
F 1 "47p" H 5200 800 50  0000 L C
	1    5150 900 
	0    1    1    0   
$EndComp
Text Notes 600  800  0    60   ~
X/Y Inlet/outlet valve control
$Comp
L +24V #PWR4
U 1 1 48EB372C
P 1150 3300
F 0 "#PWR4" H 1150 3250 20  0001 C C
F 1 "+24V" H 1150 3400 30  0000 C C
	1    1150 3300
	0    -1   -1   0   
$EndComp
$Comp
L +24V #PWR3
U 1 1 48EB3726
P 1150 2600
F 0 "#PWR3" H 1150 2550 20  0001 C C
F 1 "+24V" H 1150 2700 30  0000 C C
	1    1150 2600
	0    -1   -1   0   
$EndComp
$Comp
L +24V #PWR2
U 1 1 48EB371D
P 1150 1900
F 0 "#PWR2" H 1150 1850 20  0001 C C
F 1 "+24V" H 1150 2000 30  0000 C C
	1    1150 1900
	0    -1   -1   0   
$EndComp
$Comp
L +24V #PWR1
U 1 1 48EB3717
P 1150 1200
F 0 "#PWR1" H 1150 1150 20  0001 C C
F 1 "+24V" H 1150 1300 30  0000 C C
	1    1150 1200
	0    -1   -1   0   
$EndComp
$Comp
L INDUCTOR L2
U 1 1 48EB3674
P 1800 1900
F 0 "L2" V 1750 1900 40  0000 C C
F 1 "Valve coil, 270 Ohms" V 1900 1900 40  0000 C C
	1    1800 1900
	0    1    1    0   
$EndComp
$Comp
L INDUCTOR L3
U 1 1 48EB3670
P 1800 2600
F 0 "L3" V 1750 2600 40  0000 C C
F 1 "Valve coil, 270 Ohms" V 1900 2600 40  0000 C C
	1    1800 2600
	0    1    1    0   
$EndComp
$Comp
L INDUCTOR L4
U 1 1 48EB366C
P 1800 3300
F 0 "L4" V 1750 3300 40  0000 C C
F 1 "Valve coil, 270 Ohms" V 1900 3300 40  0000 C C
	1    1800 3300
	0    1    1    0   
$EndComp
$Comp
L INDUCTOR L1
U 1 1 48EB3663
P 1800 1200
F 0 "L1" V 1750 1200 40  0000 C C
F 1 "Valve coil, 270 Ohms" V 1900 1200 40  0000 C C
	1    1800 1200
	0    1    1    0   
$EndComp
$Comp
L +5V #PWR28
U 1 1 48EB35DA
P 8550 2600
F 0 "#PWR28" H 8550 2690 20  0001 C C
F 1 "+5V" H 8550 2690 30  0000 C C
	1    8550 2600
	0    1    1    0   
$EndComp
$Comp
L R R13
U 1 1 48EB35CD
P 8250 2600
F 0 "R13" V 8330 2600 50  0000 C C
F 1 "10k" V 8250 2600 50  0000 C C
	1    8250 2600
	0    1    1    0   
$EndComp
$Comp
L GND #PWR22
U 1 1 48EB35A8
P 5950 4250
F 0 "#PWR22" H 5950 4250 30  0001 C C
F 1 "GND" H 5950 4180 30  0001 C C
	1    5950 4250
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR18
U 1 1 48EB35A4
P 5550 4250
F 0 "#PWR18" H 5550 4250 30  0001 C C
F 1 "GND" H 5550 4180 30  0001 C C
	1    5550 4250
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR23
U 1 1 48EB3592
P 6050 950
F 0 "#PWR23" H 6050 1040 20  0001 C C
F 1 "+5V" H 6050 1040 30  0000 C C
	1    6050 950 
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR19
U 1 1 48EB3587
P 5650 950
F 0 "#PWR19" H 5650 1040 20  0001 C C
F 1 "+5V" H 5650 1040 30  0000 C C
	1    5650 950 
	1    0    0    -1  
$EndComp
$Comp
L R R6
U 1 1 48EB33AC
P 3250 3100
F 0 "R6" V 3330 3100 50  0000 C C
F 1 "1.5k" V 3250 3100 50  0000 C C
	1    3250 3100
	0    1    1    0   
$EndComp
$Comp
L R R3
U 1 1 48EB33A5
P 3250 1000
F 0 "R3" V 3330 1000 50  0000 C C
F 1 "1.5k" V 3250 1000 50  0000 C C
	1    3250 1000
	0    1    1    0   
$EndComp
$Comp
L R R5
U 1 1 48EB339D
P 3250 2400
F 0 "R5" V 3330 2400 50  0000 C C
F 1 "1.5k" V 3250 2400 50  0000 C C
	1    3250 2400
	0    1    1    0   
$EndComp
$Comp
L R R4
U 1 1 48EB338E
P 3250 1700
F 0 "R4" V 3330 1700 50  0000 C C
F 1 "1.5k" V 3250 1700 50  0000 C C
	1    3250 1700
	0    1    1    0   
$EndComp
$Comp
L GND #PWR9
U 1 1 48EB336B
P 2650 700
F 0 "#PWR9" H 2650 700 30  0001 C C
F 1 "GND" H 2650 630 30  0001 C C
	1    2650 700 
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR10
U 1 1 48EB3367
P 2650 1400
F 0 "#PWR10" H 2650 1400 30  0001 C C
F 1 "GND" H 2650 1330 30  0001 C C
	1    2650 1400
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR12
U 1 1 48EB335F
P 2650 2800
F 0 "#PWR12" H 2650 2800 30  0001 C C
F 1 "GND" H 2650 2730 30  0001 C C
	1    2650 2800
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR11
U 1 1 48EB3357
P 2650 2100
F 0 "#PWR11" H 2650 2100 30  0001 C C
F 1 "GND" H 2650 2030 30  0001 C C
	1    2650 2100
	-1   0    0    1   
$EndComp
$Comp
L NPN Q4
U 1 1 48EB32CD
P 2750 3100
F 0 "Q4" H 2900 3100 50  0000 C C
F 1 "BD139" H 2652 3250 50  0000 C C
	1    2750 3100
	-1   0    0    1   
$EndComp
$Comp
L NPN Q1
U 1 1 48EB32C9
P 2750 1000
F 0 "Q1" H 2900 1000 50  0000 C C
F 1 "BD139" H 2652 1150 50  0000 C C
	1    2750 1000
	-1   0    0    1   
$EndComp
$Comp
L NPN Q3
U 1 1 48EA892D
P 2750 2400
F 0 "Q3" H 2900 2400 50  0000 C C
F 1 "BD139" H 2652 2550 50  0000 C C
	1    2750 2400
	-1   0    0    1   
$EndComp
$Comp
L NPN Q2
U 1 1 48EA8926
P 2750 1700
F 0 "Q2" H 2900 1700 50  0000 C C
F 1 "BD139" H 2652 1850 50  0000 C C
	1    2750 1700
	-1   0    0    1   
$EndComp
$Comp
L ATMEGA8-16PI I1
U 1 1 48E7ED06
P 5750 2550
F 0 "I1" H 6450 3950 60  0000 C C
F 1 "ATMEGA8-16PI" H 6400 1100 60  0000 C C
	1    5750 2550
	1    0    0    -1  
$EndComp
$EndSCHEMATC
bues.ch cgit interface