STFD.sch

EESchema Schematic File Version 2
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:kevin
LIBS:kkrieger_logo
LIBS:kkrieger_logo_small
EELAYER 27 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "Shut the Front Door"
Date "10 aug 2014"
Rev "1"
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text Notes 7050 6900 0    60   ~ 0
SHUT THE FRONT DOOR\nKevin Krieger \nAugust 2014
$Comp
L LM358 U2
U 1 1 53E7B85C
P 5450 2600
F 0 "U2" H 5400 2800 60  0000 L CNN
F 1 "LM358" H 5400 2350 60  0000 L CNN
F 2 "DIP-8__300_ELL" H 5450 2600 60  0000 C CNN
F 3 "" H 5450 2600 60  0000 C CNN
	1    5450 2600
	1    0    0    -1  
$EndComp
$Comp
L LM358 U2
U 2 1 53E7B869
P 9600 2500
F 0 "U2" H 9550 2700 60  0000 L CNN
F 1 "LM358" H 9550 2250 60  0000 L CNN
F 2 "DIP-8__300_ELL" H 9600 2500 60  0000 C CNN
F 3 "" H 9600 2500 60  0000 C CNN
	2    9600 2500
	1    0    0    -1  
$EndComp
$Comp
L MIC MIC1
U 1 1 53E7B886
P 3150 3200
F 0 "MIC1" H 3150 3050 60  0000 C CNN
F 1 "MIC" H 3150 3350 60  0000 C CNN
F 2 "CMA_4544PF_W" H 3150 3350 60  0000 C CNN
F 3 "~" H 3150 3350 60  0000 C CNN
	1    3150 3200
	0    1    1    0   
$EndComp
$Comp
L BATTERY BT1
U 1 1 53E7B895
P 1700 1650
F 0 "BT1" H 1700 1850 50  0000 C CNN
F 1 "BATTERY" H 1700 1460 50  0000 C CNN
F 2 "S2B-PH-SM4-TB" H 1700 1650 60  0000 C CNN
F 3 "~" H 1700 1650 60  0000 C CNN
	1    1700 1650
	0    1    1    0   
$EndComp
$Comp
L OPTO-TRANSISTOR4 U3
U 1 1 53E7B8B8
P 6600 5500
F 0 "U3" H 6800 5750 60  0000 C CNN
F 1 "LTV-816" H 6600 5250 60  0000 C CNN
F 2 "DIP_4" H 6600 5500 60  0000 C CNN
F 3 "" H 6600 5500 60  0000 C CNN
	1    6600 5500
	1    0    0    -1  
$EndComp
$Comp
L LM555N U1
U 1 1 53E7B8C7
P 4350 5550
F 0 "U1" H 4350 5650 70  0000 C CNN
F 1 "LM555N" H 4350 5450 70  0000 C CNN
F 2 "DIP-8__300_ELL" H 4350 5550 60  0000 C CNN
F 3 "" H 4350 5550 60  0000 C CNN
	1    4350 5550
	1    0    0    -1  
$EndComp
$Comp
L R R2
U 1 1 53E7B8E8
P 3150 2400
F 0 "R2" V 3230 2400 40  0000 C CNN
F 1 "2k2" V 3157 2401 40  0000 C CNN
F 2 "R3" V 3080 2400 30  0000 C CNN
F 3 "~" H 3150 2400 30  0000 C CNN
	1    3150 2400
	1    0    0    -1  
$EndComp
$Comp
L C C3
U 1 1 53E7B8EE
P 3700 2700
F 0 "C3" H 3700 2800 40  0000 L CNN
F 1 "0.33u" H 3706 2615 40  0000 L CNN
F 2 "c_0805" H 3738 2550 30  0000 C CNN
F 3 "~" H 3700 2700 60  0000 C CNN
	1    3700 2700
	0    -1   -1   0   
$EndComp
$Comp
L +BATT #PWR3
U 1 1 53E7B90A
P 1700 1250
F 0 "#PWR3" H 1700 1200 20  0001 C CNN
F 1 "+BATT" H 1700 1350 30  0000 C CNN
F 2 "" H 1700 1250 60  0000 C CNN
F 3 "" H 1700 1250 60  0000 C CNN
	1    1700 1250
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR4
U 1 1 53E7B91A
P 1700 2050
F 0 "#PWR4" H 1700 2050 30  0001 C CNN
F 1 "GND" H 1700 1980 30  0001 C CNN
F 2 "" H 1700 2050 60  0000 C CNN
F 3 "" H 1700 2050 60  0000 C CNN
	1    1700 2050
	1    0    0    -1  
$EndComp
$Comp
L C C1
U 1 1 53E7B929
P 2200 1600
F 0 "C1" H 2200 1700 40  0000 L CNN
F 1 "10u" H 2206 1515 40  0000 L CNN
F 2 "c_0805" H 2238 1450 30  0000 C CNN
F 3 "~" H 2200 1600 60  0000 C CNN
	1    2200 1600
	-1   0    0    1   
$EndComp
$Comp
L +BATT #PWR5
U 1 1 53E7B92F
P 2200 1300
F 0 "#PWR5" H 2200 1250 20  0001 C CNN
F 1 "+BATT" H 2200 1400 30  0000 C CNN
F 2 "" H 2200 1300 60  0000 C CNN
F 3 "" H 2200 1300 60  0000 C CNN
	1    2200 1300
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR6
U 1 1 53E7B935
P 2200 1900
F 0 "#PWR6" H 2200 1900 30  0001 C CNN
F 1 "GND" H 2200 1830 30  0001 C CNN
F 2 "" H 2200 1900 60  0000 C CNN
F 3 "" H 2200 1900 60  0000 C CNN
	1    2200 1900
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR10
U 1 1 53E7BA9E
P 3150 3800
F 0 "#PWR10" H 3150 3800 30  0001 C CNN
F 1 "GND" H 3150 3730 30  0001 C CNN
F 2 "" H 3150 3800 60  0000 C CNN
F 3 "" H 3150 3800 60  0000 C CNN
	1    3150 3800
	1    0    0    -1  
$EndComp
$Comp
L R R3
U 1 1 53E7BAB5
P 4300 2700
F 0 "R3" V 4380 2700 40  0000 C CNN
F 1 "0R" V 4307 2701 40  0000 C CNN
F 2 "R3" V 4230 2700 30  0000 C CNN
F 3 "~" H 4300 2700 30  0000 C CNN
	1    4300 2700
	0    -1   -1   0   
$EndComp
$Comp
L R R8
U 1 1 53E7BAF4
P 5750 2100
F 0 "R8" V 5830 2100 40  0000 C CNN
F 1 "1M" V 5757 2101 40  0000 C CNN
F 2 "R3" V 5680 2100 30  0000 C CNN
F 3 "~" H 5750 2100 30  0000 C CNN
	1    5750 2100
	0    1    1    0   
$EndComp
$Comp
L GND #PWR17
U 1 1 53E7BB2C
P 5350 3050
F 0 "#PWR17" H 5350 3050 30  0001 C CNN
F 1 "GND" H 5350 2980 30  0001 C CNN
F 2 "" H 5350 3050 60  0000 C CNN
F 3 "" H 5350 3050 60  0000 C CNN
	1    5350 3050
	1    0    0    -1  
$EndComp
$Comp
L POT RV1
U 1 1 53E7BB6A
P 6250 1950
F 0 "RV1" H 6250 1850 50  0000 C CNN
F 1 "10k" H 6250 1950 50  0000 C CNN
F 2 "RV2X4" H 6250 1950 60  0000 C CNN
F 3 "~" H 6250 1950 60  0000 C CNN
	1    6250 1950
	0    1    1    0   
$EndComp
$Comp
L GND #PWR22
U 1 1 53E7BB92
P 6250 2300
F 0 "#PWR22" H 6250 2300 30  0001 C CNN
F 1 "GND" H 6250 2230 30  0001 C CNN
F 2 "" H 6250 2300 60  0000 C CNN
F 3 "" H 6250 2300 60  0000 C CNN
	1    6250 2300
	1    0    0    -1  
$EndComp
$Comp
L R R5
U 1 1 53E7BBE4
P 4750 2000
F 0 "R5" V 4830 2000 40  0000 C CNN
F 1 "10k" V 4757 2001 40  0000 C CNN
F 2 "R3" V 4680 2000 30  0000 C CNN
F 3 "~" H 4750 2000 30  0000 C CNN
	1    4750 2000
	-1   0    0    1   
$EndComp
$Comp
L R R6
U 1 1 53E7BBEA
P 4750 3100
F 0 "R6" V 4830 3100 40  0000 C CNN
F 1 "10k" V 4757 3101 40  0000 C CNN
F 2 "R3" V 4680 3100 30  0000 C CNN
F 3 "~" H 4750 3100 30  0000 C CNN
	1    4750 3100
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR15
U 1 1 53E7BC10
P 4750 3450
F 0 "#PWR15" H 4750 3450 30  0001 C CNN
F 1 "GND" H 4750 3380 30  0001 C CNN
F 2 "" H 4750 3450 60  0000 C CNN
F 3 "" H 4750 3450 60  0000 C CNN
	1    4750 3450
	1    0    0    -1  
$EndComp
$Comp
L R R9
U 1 1 53E7BC86
P 6300 2600
F 0 "R9" V 6380 2600 40  0000 C CNN
F 1 "0R" V 6307 2601 40  0000 C CNN
F 2 "R3" V 6230 2600 30  0000 C CNN
F 3 "~" H 6300 2600 30  0000 C CNN
	1    6300 2600
	0    1    1    0   
$EndComp
$Comp
L GND #PWR33
U 1 1 53E7BCDF
P 9500 3000
F 0 "#PWR33" H 9500 3000 30  0001 C CNN
F 1 "GND" H 9500 2930 30  0001 C CNN
F 2 "" H 9500 3000 60  0000 C CNN
F 3 "" H 9500 3000 60  0000 C CNN
	1    9500 3000
	1    0    0    -1  
$EndComp
Text Label 10200 2500 0    60   ~ 0
~TRIGGER
$Comp
L R R1
U 1 1 53E7BF90
P 3350 4950
F 0 "R1" V 3430 4950 40  0000 C CNN
F 1 "R_PU" V 3357 4951 40  0000 C CNN
F 2 "R3" V 3280 4950 30  0000 C CNN
F 3 "~" H 3350 4950 30  0000 C CNN
	1    3350 4950
	1    0    0    -1  
$EndComp
Text Label 3250 5350 2    60   ~ 0
~TRIGGER
$Comp
L R R7
U 1 1 53E7C008
P 5650 5350
F 0 "R7" V 5730 5350 40  0000 C CNN
F 1 "R_OPTO" V 5657 5351 40  0000 C CNN
F 2 "R3" V 5580 5350 30  0000 C CNN
F 3 "~" H 5650 5350 30  0000 C CNN
	1    5650 5350
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR20
U 1 1 53E7C06F
P 5900 5850
F 0 "#PWR20" H 5900 5850 30  0001 C CNN
F 1 "GND" H 5900 5780 30  0001 C CNN
F 2 "" H 5900 5850 60  0000 C CNN
F 3 "" H 5900 5850 60  0000 C CNN
	1    5900 5850
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR12
U 1 1 53E7C21D
P 3350 6250
F 0 "#PWR12" H 3350 6250 30  0001 C CNN
F 1 "GND" H 3350 6180 30  0001 C CNN
F 2 "" H 3350 6250 60  0000 C CNN
F 3 "" H 3350 6250 60  0000 C CNN
	1    3350 6250
	1    0    0    -1  
$EndComp
$Comp
L C C2
U 1 1 53E7C223
P 3350 5950
F 0 "C2" H 3350 6050 40  0000 L CNN
F 1 "0.1n" H 3356 5865 40  0000 L CNN
F 2 "c_0805" H 3388 5800 30  0000 C CNN
F 3 "~" H 3350 5950 60  0000 C CNN
	1    3350 5950
	1    0    0    -1  
$EndComp
$Comp
L R R4
U 1 1 53E7C3D6
P 5350 4950
F 0 "R4" V 5430 4950 40  0000 C CNN
F 1 "1M" V 5357 4951 40  0000 C CNN
F 2 "R3" V 5280 4950 30  0000 C CNN
F 3 "~" H 5350 4950 30  0000 C CNN
	1    5350 4950
	1    0    0    -1  
$EndComp
$Comp
L C C4
U 1 1 53E7C3DC
P 5350 6100
F 0 "C4" H 5350 6200 40  0000 L CNN
F 1 "0.1u" H 5356 6015 40  0000 L CNN
F 2 "c_0805" H 5388 5950 30  0000 C CNN
F 3 "~" H 5350 6100 60  0000 C CNN
	1    5350 6100
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR19
U 1 1 53E7C451
P 5350 6400
F 0 "#PWR19" H 5350 6400 30  0001 C CNN
F 1 "GND" H 5350 6330 30  0001 C CNN
F 2 "" H 5350 6400 60  0000 C CNN
F 3 "" H 5350 6400 60  0000 C CNN
	1    5350 6400
	1    0    0    -1  
$EndComp
Text Notes 3600 6300 0    60   ~ 0
Monostable Time constant: 1.1RC\nR = 1M\nC = 0.1u\nTime is approx 1.1 seconds
Text Notes 1950 4750 0    60   ~ 0
R_PU several hundred kOhm
Text Notes 2900 650  0    60   ~ 0
Microphone circuit detects only positive peaks higher than potentiometer output to comparator. Active low output
$Comp
L 3.5MMJACK J1
U 1 1 53E7CB29
P 10250 5450
F 0 "J1" H 10250 5100 60  0000 C CNN
F 1 "3.5MMJACK" H 10250 5800 60  0000 C CNN
F 2 "3.5mmJack_Sparkfun" H 10250 5450 60  0000 C CNN
F 3 "" H 10250 5450 60  0000 C CNN
	1    10250 5450
	1    0    0    -1  
$EndComp
Text Notes 9250 6000 0    60   ~ 0
3.5mm Jack from sparkfun: PRT-08032\npin 3 normally closed to pin 2\npin 4 normally closed to pin 5\nInsertion makes them open\nPin 1 is common
NoConn ~ 10400 5550
NoConn ~ 10400 5650
$Comp
L SCREW-6-32 MP1
U 1 1 53E7D209
P 1100 7150
F 0 "MP1" H 1100 6850 60  0000 C CNN
F 1 "SCREW-6-32" H 1050 7400 60  0000 C CNN
F 2 "SCREW_6_32" H 1100 7150 60  0000 C CNN
F 3 "~" H 1100 7150 60  0000 C CNN
	1    1100 7150
	1    0    0    -1  
$EndComp
$Comp
L SCREW-6-32 MP2
U 1 1 53E7D216
P 1750 7150
F 0 "MP2" H 1750 6850 60  0000 C CNN
F 1 "SCREW-6-32" H 1700 7400 60  0000 C CNN
F 2 "SCREW_6_32" H 1750 7150 60  0000 C CNN
F 3 "~" H 1750 7150 60  0000 C CNN
	1    1750 7150
	1    0    0    -1  
$EndComp
$Comp
L SCREW-6-32 MP3
U 1 1 53E7D21C
P 2400 7150
F 0 "MP3" H 2400 6850 60  0000 C CNN
F 1 "SCREW-6-32" H 2350 7400 60  0000 C CNN
F 2 "SCREW_6_32" H 2400 7150 60  0000 C CNN
F 3 "~" H 2400 7150 60  0000 C CNN
	1    2400 7150
	1    0    0    -1  
$EndComp
$Comp
L SCREW-6-32 MP4
U 1 1 53E7D24C
P 3050 7150
F 0 "MP4" H 3050 6850 60  0000 C CNN
F 1 "SCREW-6-32" H 3000 7400 60  0000 C CNN
F 2 "SCREW_6_32" H 3050 7150 60  0000 C CNN
F 3 "~" H 3050 7150 60  0000 C CNN
	1    3050 7150
	1    0    0    -1  
$EndComp
$Comp
L R R11
U 1 1 53E7D4A6
P 7500 5650
F 0 "R11" V 7580 5650 40  0000 C CNN
F 1 "0R" V 7507 5651 40  0000 C CNN
F 2 "R3" V 7430 5650 30  0000 C CNN
F 3 "~" H 7500 5650 30  0000 C CNN
	1    7500 5650
	0    -1   -1   0   
$EndComp
$Comp
L R R10
U 1 1 53E7D53A
P 7500 5350
F 0 "R10" V 7580 5350 40  0000 C CNN
F 1 "0R" V 7507 5351 40  0000 C CNN
F 2 "R3" V 7430 5350 30  0000 C CNN
F 3 "~" H 7500 5350 30  0000 C CNN
	1    7500 5350
	0    -1   -1   0   
$EndComp
$Comp
L SW_PUSH SW1
U 1 1 53E7D857
P 7200 6100
F 0 "SW1" H 7350 6210 50  0000 C CNN
F 1 "HALF_PRESS" H 7200 6020 50  0000 C CNN
F 2 "FSM4JSMA_pushbutton" H 7200 6100 60  0000 C CNN
F 3 "~" H 7200 6100 60  0000 C CNN
	1    7200 6100
	1    0    0    -1  
$EndComp
$Comp
L R R12
U 1 1 53E7D8F2
P 7800 6100
F 0 "R12" V 7880 6100 40  0000 C CNN
F 1 "0R" V 7807 6101 40  0000 C CNN
F 2 "R3" V 7730 6100 30  0000 C CNN
F 3 "~" H 7800 6100 30  0000 C CNN
	1    7800 6100
	0    1    1    0   
$EndComp
Text Notes 10350 4850 0    60   ~ 0
Common
Text Notes 9950 4850 0    60   ~ 0
CH1
Text Notes 9600 4850 0    60   ~ 0
CH2
Text Notes 8500 4300 0    60   ~ 0
Short CH1 and Common = half press\nShort CH2 and Common = Shutter release\nMeasured impedance between Common and CH1 - 4K\nMeasured impedance between Common and CH2 - 4K\nMeasured impedance between CH1 and CH2 - 50K\nCanon Rebel T3i
$Comp
L +BATT #PWR7
U 1 1 53E7EC9E
P 2550 1300
F 0 "#PWR7" H 2550 1250 20  0001 C CNN
F 1 "+BATT" H 2550 1400 30  0000 C CNN
F 2 "" H 2550 1300 60  0000 C CNN
F 3 "" H 2550 1300 60  0000 C CNN
	1    2550 1300
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR8
U 1 1 53E7ECA6
P 2750 1300
F 0 "#PWR8" H 2750 1400 30  0001 C CNN
F 1 "VCC" H 2750 1400 30  0000 C CNN
F 2 "" H 2750 1300 60  0000 C CNN
F 3 "" H 2750 1300 60  0000 C CNN
	1    2750 1300
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR9
U 1 1 53E7EDEA
P 3150 2100
F 0 "#PWR9" H 3150 2200 30  0001 C CNN
F 1 "VCC" H 3150 2200 30  0000 C CNN
F 2 "" H 3150 2100 60  0000 C CNN
F 3 "" H 3150 2100 60  0000 C CNN
	1    3150 2100
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR14
U 1 1 53E7EDFA
P 4750 1700
F 0 "#PWR14" H 4750 1800 30  0001 C CNN
F 1 "VCC" H 4750 1800 30  0000 C CNN
F 2 "" H 4750 1700 60  0000 C CNN
F 3 "" H 4750 1700 60  0000 C CNN
	1    4750 1700
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR16
U 1 1 53E7EE00
P 5350 2000
F 0 "#PWR16" H 5350 2100 30  0001 C CNN
F 1 "VCC" H 5350 2100 30  0000 C CNN
F 2 "" H 5350 2000 60  0000 C CNN
F 3 "" H 5350 2000 60  0000 C CNN
	1    5350 2000
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR32
U 1 1 53E7EE06
P 9500 2050
F 0 "#PWR32" H 9500 2150 30  0001 C CNN
F 1 "VCC" H 9500 2150 30  0000 C CNN
F 2 "" H 9500 2050 60  0000 C CNN
F 3 "" H 9500 2050 60  0000 C CNN
	1    9500 2050
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR18
U 1 1 53E7EE0C
P 5350 4650
F 0 "#PWR18" H 5350 4750 30  0001 C CNN
F 1 "VCC" H 5350 4750 30  0000 C CNN
F 2 "" H 5350 4650 60  0000 C CNN
F 3 "" H 5350 4650 60  0000 C CNN
	1    5350 4650
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR13
U 1 1 53E7EE12
P 3550 4650
F 0 "#PWR13" H 3550 4750 30  0001 C CNN
F 1 "VCC" H 3550 4750 30  0000 C CNN
F 2 "" H 3550 4650 60  0000 C CNN
F 3 "" H 3550 4650 60  0000 C CNN
	1    3550 4650
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR11
U 1 1 53E7EE18
P 3350 4650
F 0 "#PWR11" H 3350 4750 30  0001 C CNN
F 1 "VCC" H 3350 4750 30  0000 C CNN
F 2 "" H 3350 4650 60  0000 C CNN
F 3 "" H 3350 4650 60  0000 C CNN
	1    3350 4650
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR21
U 1 1 53E7EE2C
P 6250 1050
F 0 "#PWR21" H 6250 1150 30  0001 C CNN
F 1 "VCC" H 6250 1150 30  0000 C CNN
F 2 "" H 6250 1050 60  0000 C CNN
F 3 "" H 6250 1050 60  0000 C CNN
	1    6250 1050
	1    0    0    -1  
$EndComp
$Comp
L CONN_2 P1
U 1 1 53E7F402
P 900 1650
F 0 "P1" V 850 1650 40  0000 C CNN
F 1 "BATT" V 950 1650 40  0000 C CNN
F 2 "SIL-2" H 900 1650 60  0000 C CNN
F 3 "" H 900 1650 60  0000 C CNN
	1    900  1650
	-1   0    0    1   
$EndComp
$Comp
L ZENER D2
U 1 1 53E7F8ED
P 10200 2750
F 0 "D2" H 10200 2850 50  0000 C CNN
F 1 "3.3V" H 10200 2650 40  0000 C CNN
F 2 "DO-35" H 10200 2750 60  0000 C CNN
F 3 "~" H 10200 2750 60  0000 C CNN
	1    10200 2750
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR34
U 1 1 53E7F8FA
P 10200 3000
F 0 "#PWR34" H 10200 3000 30  0001 C CNN
F 1 "GND" H 10200 2930 30  0001 C CNN
F 2 "" H 10200 3000 60  0000 C CNN
F 3 "" H 10200 3000 60  0000 C CNN
	1    10200 3000
	1    0    0    -1  
$EndComp
$Comp
L R R13
U 1 1 53E7FCD0
P 6250 1350
F 0 "R13" V 6330 1350 40  0000 C CNN
F 1 "R_PIEZO" V 6257 1351 40  0000 C CNN
F 2 "R3" V 6180 1350 30  0000 C CNN
F 3 "~" H 6250 1350 30  0000 C CNN
	1    6250 1350
	1    0    0    -1  
$EndComp
Text Notes 6350 950  0    60   ~ 0
Populate R_PIEZO with 10K if using piezo disk\nThen use 1K trimpot instead of 10K
$Comp
L CRYSTAL X1
U 1 1 53E7FD68
P 6850 1700
F 0 "X1" H 6850 1850 60  0000 C CNN
F 1 "PIEZO" H 6850 1550 60  0000 C CNN
F 2 "SIL-2" H 6850 1700 60  0000 C CNN
F 3 "~" H 6850 1700 60  0000 C CNN
	1    6850 1700
	0    -1   -1   0   
$EndComp
$Comp
L VCC #PWR24
U 1 1 53E7FD75
P 6850 1350
F 0 "#PWR24" H 6850 1450 30  0001 C CNN
F 1 "VCC" H 6850 1450 30  0000 C CNN
F 2 "" H 6850 1350 60  0000 C CNN
F 3 "" H 6850 1350 60  0000 C CNN
	1    6850 1350
	1    0    0    -1  
$EndComp
$Comp
L R R14
U 1 1 53E7FF41
P 6600 3250
F 0 "R14" V 6680 3250 40  0000 C CNN
F 1 "1M" V 6607 3251 40  0000 C CNN
F 2 "R3" V 6530 3250 30  0000 C CNN
F 3 "~" H 6600 3250 30  0000 C CNN
	1    6600 3250
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR23
U 1 1 53E7FFB8
P 6600 3550
F 0 "#PWR23" H 6600 3550 30  0001 C CNN
F 1 "GND" H 6600 3480 30  0001 C CNN
F 2 "" H 6600 3550 60  0000 C CNN
F 3 "" H 6600 3550 60  0000 C CNN
	1    6600 3550
	1    0    0    -1  
$EndComp
$Comp
L ZENER D1
U 1 1 53E80028
P 6850 3200
F 0 "D1" H 6850 3300 50  0000 C CNN
F 1 "4.7V" H 6850 3100 40  0000 C CNN
F 2 "DO-35" H 6850 3200 60  0000 C CNN
F 3 "~" H 6850 3200 60  0000 C CNN
	1    6850 3200
	0    -1   -1   0   
$EndComp
$Comp
L C C5
U 1 1 53E8003C
P 7100 3200
F 0 "C5" H 7100 3300 40  0000 L CNN
F 1 "4.7n" H 7106 3115 40  0000 L CNN
F 2 "c_0805" H 7138 3050 30  0000 C CNN
F 3 "~" H 7100 3200 60  0000 C CNN
	1    7100 3200
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR25
U 1 1 53E802F8
P 6850 3550
F 0 "#PWR25" H 6850 3550 30  0001 C CNN
F 1 "GND" H 6850 3480 30  0001 C CNN
F 2 "" H 6850 3550 60  0000 C CNN
F 3 "" H 6850 3550 60  0000 C CNN
	1    6850 3550
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR27
U 1 1 53E802FE
P 7100 3550
F 0 "#PWR27" H 7100 3550 30  0001 C CNN
F 1 "GND" H 7100 3480 30  0001 C CNN
F 2 "" H 7100 3550 60  0000 C CNN
F 3 "" H 7100 3550 60  0000 C CNN
	1    7100 3550
	1    0    0    -1  
$EndComp
Text Notes 5850 3800 0    60   ~ 0
Only populate if using Piezo disk
$Comp
L R R15
U 1 1 53E80EEB
P 7550 3600
F 0 "R15" V 7650 3600 40  0000 C CNN
F 1 "1k" V 7557 3601 40  0000 C CNN
F 2 "R3" V 7480 3600 30  0000 C CNN
F 3 "~" H 7550 3600 30  0000 C CNN
	1    7550 3600
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR28
U 1 1 53E80F10
P 7550 2800
F 0 "#PWR28" H 7550 2900 30  0001 C CNN
F 1 "VCC" H 7550 2900 30  0000 C CNN
F 2 "" H 7550 2800 60  0000 C CNN
F 3 "" H 7550 2800 60  0000 C CNN
	1    7550 2800
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR30
U 1 1 53E81023
P 8850 2800
F 0 "#PWR30" H 8850 2900 30  0001 C CNN
F 1 "VCC" H 8850 2900 30  0000 C CNN
F 2 "" H 8850 2800 60  0000 C CNN
F 3 "" H 8850 2800 60  0000 C CNN
	1    8850 2800
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR29
U 1 1 53E81126
P 7550 3950
F 0 "#PWR29" H 7550 3950 30  0001 C CNN
F 1 "GND" H 7550 3880 30  0001 C CNN
F 2 "" H 7550 3950 60  0000 C CNN
F 3 "" H 7550 3950 60  0000 C CNN
	1    7550 3950
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR31
U 1 1 53E8112C
P 8950 3950
F 0 "#PWR31" H 8950 3950 30  0001 C CNN
F 1 "GND" H 8950 3880 30  0001 C CNN
F 2 "" H 8950 3950 60  0000 C CNN
F 3 "" H 8950 3950 60  0000 C CNN
	1    8950 3950
	1    0    0    -1  
$EndComp
Text Notes 7800 3650 0    60   ~ 0
Only populate if \nusing opto-interrupter
Text Notes 3300 1500 0    60   ~ 0
DNP circuit A if using piezo disk or optointerrupter
$Comp
L OPTO-TRANSISTOR4 U4
U 1 1 53E82D07
P 8250 3100
F 0 "U4" H 8450 3350 60  0000 C CNN
F 1 "QRB1134" H 8250 2850 60  0000 C CNN
F 2 "HEADER-4x0.1inch" H 8250 3100 60  0000 C CNN
F 3 "" H 8250 3100 60  0000 C CNN
	1    8250 3100
	1    0    0    -1  
$EndComp
$Comp
L R R16
U 1 1 53E8101D
P 8950 3650
F 0 "R16" V 9030 3650 40  0000 C CNN
F 1 "10k" V 8957 3651 40  0000 C CNN
F 2 "R3" V 8880 3650 30  0000 C CNN
F 3 "~" H 8950 3650 30  0000 C CNN
	1    8950 3650
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR1
U 1 1 53E836E8
P 1550 3650
F 0 "#PWR1" H 1550 3750 30  0001 C CNN
F 1 "VCC" H 1550 3750 30  0000 C CNN
F 2 "" H 1550 3650 60  0000 C CNN
F 3 "" H 1550 3650 60  0000 C CNN
	1    1550 3650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR2
U 1 1 53E83782
P 1550 4600
F 0 "#PWR2" H 1550 4600 30  0001 C CNN
F 1 "GND" H 1550 4530 30  0001 C CNN
F 2 "" H 1550 4600 60  0000 C CNN
F 3 "" H 1550 4600 60  0000 C CNN
	1    1550 4600
	1    0    0    -1  
$EndComp
Text Label 1550 3900 0    60   ~ 0
~TRIGGER
Text Label 8350 2550 0    60   ~ 0
COMPARATOR-
Text Label 8350 2350 0    60   ~ 0
COMPARATOR+
Text Label 1550 4000 0    60   ~ 0
COMPARATOR+
Text Label 1550 4100 0    60   ~ 0
COMPARATOR-
Text Label 8350 6100 0    60   ~ 0
HALF_PRESS
Text Label 1550 4200 0    60   ~ 0
HALF_PRESS
Text Label 8400 5700 0    60   ~ 0
SHUTTER_RELEASE
Text Label 1550 4300 0    60   ~ 0
TIMER_OUT
$Comp
L CONN_8 P2
U 1 1 53E845B1
P 1000 4150
F 0 "P2" V 950 4150 60  0000 C CNN
F 1 "IO" V 1050 4150 60  0000 C CNN
F 2 "SIL-8" H 1000 4150 60  0000 C CNN
F 3 "" H 1000 4150 60  0000 C CNN
	1    1000 4150
	-1   0    0    1   
$EndComp
Text Label 5200 5100 2    60   ~ 0
TIMER_OUT
Text Label 1550 4400 0    60   ~ 0
SHUTTER_RELEASE
$Comp
L CONN_3 K1
U 1 1 53E85328
P 7500 2200
F 0 "K1" V 7450 2200 50  0000 C CNN
F 1 "CONN_3" V 7550 2200 40  0000 C CNN
F 2 "" H 7500 2200 60  0000 C CNN
F 3 "" H 7500 2200 60  0000 C CNN
	1    7500 2200
	1    0    0    -1  
$EndComp
Wire Wire Line
	1700 1250 1700 1350
Wire Wire Line
	1700 1950 1700 2050
Wire Wire Line
	2200 1900 2200 1800
Wire Wire Line
	2200 1400 2200 1300
Wire Wire Line
	3150 2100 3150 2150
Wire Wire Line
	3150 2650 3150 2750
Wire Wire Line
	3150 3800 3150 3700
Wire Wire Line
	3150 2700 3500 2700
Connection ~ 3150 2700
Wire Wire Line
	3900 2700 4050 2700
Wire Wire Line
	4550 2700 4950 2700
Wire Wire Line
	4850 2100 4850 2700
Connection ~ 4850 2700
Wire Wire Line
	6000 2100 6000 2600
Wire Wire Line
	5350 2000 5350 2200
Wire Wire Line
	5350 3050 5350 3000
Wire Wire Line
	4850 2100 5500 2100
Wire Wire Line
	6250 1600 6250 1700
Wire Wire Line
	6250 2300 6250 2200
Wire Wire Line
	4750 2250 4750 2850
Wire Wire Line
	4750 3350 4750 3450
Wire Wire Line
	4750 1750 4750 1700
Connection ~ 6000 2600
Wire Wire Line
	5950 2600 6050 2600
Wire Wire Line
	6550 2600 9100 2600
Wire Wire Line
	6400 1950 6450 1950
Wire Wire Line
	6450 1950 6450 2400
Wire Wire Line
	6450 2400 9100 2400
Wire Wire Line
	9500 3000 9500 2900
Wire Wire Line
	9500 2050 9500 2100
Wire Wire Line
	10100 2500 10200 2500
Wire Wire Line
	4750 2500 4950 2500
Connection ~ 4750 2500
Wire Wire Line
	3350 4700 3350 4650
Wire Wire Line
	3350 5200 3350 5350
Wire Wire Line
	3250 5350 3650 5350
Connection ~ 3350 5350
Wire Wire Line
	5050 5350 5400 5350
Wire Wire Line
	5900 5350 5950 5350
Wire Wire Line
	5900 5850 5900 5650
Wire Wire Line
	5900 5650 5950 5650
Wire Wire Line
	3550 4650 3550 5850
Wire Wire Line
	3550 5850 3650 5850
Wire Wire Line
	3350 6250 3350 6150
Wire Wire Line
	3350 5750 3350 5600
Wire Wire Line
	3350 5600 3650 5600
Wire Wire Line
	5050 5550 5200 5550
Wire Wire Line
	5200 5550 5200 5750
Wire Wire Line
	5200 5750 5050 5750
Wire Wire Line
	5200 5650 5350 5650
Connection ~ 5200 5650
Wire Wire Line
	5350 5200 5350 5900
Connection ~ 5350 5650
Wire Wire Line
	5350 6400 5350 6300
Wire Wire Line
	5350 4650 5350 4700
Wire Wire Line
	8000 5200 8000 5900
Wire Wire Line
	8000 5200 9650 5200
Wire Wire Line
	7200 5650 7250 5650
Wire Wire Line
	7750 5650 8000 5650
Wire Wire Line
	7200 5350 7250 5350
Wire Wire Line
	7750 5350 8150 5350
Wire Wire Line
	8050 6100 8350 6100
Wire Wire Line
	7500 6100 7550 6100
Wire Wire Line
	6900 6100 6900 5900
Connection ~ 8000 5650
Wire Notes Line
	10200 4700 10850 4700
Wire Notes Line
	10850 4900 10200 4900
Wire Notes Line
	10850 4700 10850 4900
Wire Notes Line
	10200 4900 10200 4700
Wire Notes Line
	10150 4700 9950 4700
Wire Notes Line
	9950 4700 9950 4900
Wire Notes Line
	9950 4900 10150 4900
Wire Notes Line
	10150 4900 10150 4700
Wire Notes Line
	9900 4750 9700 4750
Wire Notes Line
	9700 4750 9700 4700
Wire Notes Line
	9700 4700 9600 4700
Wire Notes Line
	9600 4700 9600 4750
Wire Notes Line
	9600 4750 9550 4750
Wire Notes Line
	9550 4750 9550 4850
Wire Notes Line
	9550 4850 9600 4850
Wire Notes Line
	9600 4850 9600 4900
Wire Notes Line
	9600 4900 9700 4900
Wire Notes Line
	9700 4900 9700 4850
Wire Notes Line
	9700 4850 9900 4850
Wire Notes Line
	9900 4850 9900 4750
Wire Wire Line
	8150 5350 8150 5750
Wire Wire Line
	8150 5750 9650 5750
Wire Wire Line
	6900 5900 8000 5900
Wire Wire Line
	8300 6100 8300 5450
Wire Wire Line
	8300 5450 9650 5450
Wire Wire Line
	2550 1300 2550 1350
Wire Wire Line
	2550 1350 2750 1350
Wire Wire Line
	2750 1350 2750 1300
Wire Wire Line
	1250 1750 1250 2000
Wire Wire Line
	1250 2000 1700 2000
Connection ~ 1700 2000
Wire Wire Line
	1700 1300 1250 1300
Wire Wire Line
	1250 1300 1250 1550
Connection ~ 1700 1300
Wire Wire Line
	10200 3000 10200 2950
Wire Wire Line
	10200 2500 10200 2550
Wire Wire Line
	6250 1050 6250 1100
Wire Wire Line
	6850 1350 6850 1400
Wire Wire Line
	6850 2000 6850 3000
Connection ~ 6850 2600
Wire Wire Line
	6600 3550 6600 3500
Wire Wire Line
	6600 3000 6600 2950
Wire Wire Line
	6600 2950 7100 2950
Connection ~ 6850 2950
Wire Wire Line
	7100 2950 7100 3000
Wire Wire Line
	7100 3550 7100 3400
Wire Wire Line
	6850 3400 6850 3550
Wire Notes Line
	7300 2900 6450 2900
Wire Notes Line
	6450 3650 7300 3650
Wire Notes Line
	6450 2900 6450 3650
Wire Notes Line
	7300 3650 7300 2900
Wire Wire Line
	7550 2800 7550 2950
Wire Wire Line
	8850 2800 8850 2950
Wire Wire Line
	7550 3950 7550 3850
Wire Wire Line
	8950 3900 8950 3950
Connection ~ 8950 2600
Wire Wire Line
	8950 2600 8950 3400
Wire Wire Line
	7550 3350 7550 3250
Wire Wire Line
	7550 3250 7600 3250
Wire Wire Line
	7550 2950 7600 2950
Wire Notes Line
	7450 2650 7450 4050
Wire Notes Line
	7450 4050 9050 4050
Wire Notes Line
	9050 4050 9050 2650
Wire Notes Line
	9050 2650 7450 2650
Wire Wire Line
	1550 3800 1550 3650
Wire Wire Line
	1350 3800 1550 3800
Wire Wire Line
	1550 4500 1550 4600
Wire Wire Line
	1350 4500 1550 4500
Wire Wire Line
	1550 3900 1350 3900
Wire Wire Line
	1350 4000 1550 4000
Wire Wire Line
	8850 3250 8950 3250
Connection ~ 8950 3250
Wire Wire Line
	8350 2600 8350 2550
Connection ~ 8350 2600
Wire Wire Line
	8350 2400 8350 2350
Connection ~ 8350 2400
Wire Wire Line
	1550 4100 1350 4100
Connection ~ 8300 6100
Wire Wire Line
	5200 5100 5200 5350
Connection ~ 5200 5350
Wire Wire Line
	1550 4200 1350 4200
Wire Wire Line
	1350 4300 1550 4300
Wire Wire Line
	8400 5700 8400 5750
Connection ~ 8400 5750
Wire Wire Line
	1550 4400 1350 4400
Wire Wire Line
	7150 2100 6550 2100
Wire Wire Line
	6550 2100 6550 1650
Wire Wire Line
	6550 1650 6250 1650
Connection ~ 6250 1650
Wire Wire Line
	6450 2200 7150 2200
Connection ~ 6450 2200
$Comp
L GND #PWR26
U 1 1 53E855DF
P 7100 2450
F 0 "#PWR26" H 7100 2450 30  0001 C CNN
F 1 "GND" H 7100 2380 30  0001 C CNN
F 2 "" H 7100 2450 60  0000 C CNN
F 3 "" H 7100 2450 60  0000 C CNN
	1    7100 2450
	1    0    0    -1  
$EndComp
Wire Wire Line
	7100 2450 7100 2300
Wire Wire Line
	7100 2300 7150 2300
Text Notes 7100 2000 0    60   ~ 0
Alternative footprint for RV1
$EndSCHEMATC