v 20091004 2
C 43800 46900 1 0 0 atmegax8-2.sym
{
T 44095 51600 5 10 0 0 0 0 1
footprint=DIP28N
T 44295 51200 5 8 1 1 0 6 1
refdes=U4
T 46100 51200 5 10 1 1 0 0 1
device=ATmega328P
}
C 47400 49600 1 0 0 output-2.sym
{
T 48300 49800 5 10 0 0 0 0 1
net=HSYNC:1
T 47600 50300 5 10 0 0 0 0 1
device=none
T 48300 49700 5 10 1 1 0 1 1
value=HSYNC
}
C 47400 49300 1 0 0 output-2.sym
{
T 48300 49500 5 10 0 0 0 0 1
net=VSYNC:1
T 47600 50000 5 10 0 0 0 0 1
device=none
T 48300 49400 5 10 1 1 0 1 1
value=VSYNC
}
C 42000 47700 1 0 0 crystal-1.sym
{
T 42200 48200 5 10 0 0 0 0 1
device=CRYSTAL
T 42200 48200 5 10 1 1 0 0 1
refdes=X1
T 42200 48400 5 10 0 0 0 0 1
symversion=0.1
T 42100 48000 5 10 1 1 0 0 1
value=20MHz
T 42200 47700 5 10 0 1 0 0 1
footprint=HC49
}
C 42500 47800 1 270 0 capacitor-1.sym
{
T 43200 47600 5 10 0 0 270 0 1
device=CAPACITOR
T 42800 47500 5 10 1 1 0 0 1
refdes=C4
T 43400 47600 5 10 0 0 270 0 1
symversion=0.1
T 42800 47100 5 10 1 1 0 0 1
value=18pF
T 42500 47800 5 10 0 1 0 0 1
footprint=JUMPER2
}
C 41800 47800 1 270 0 capacitor-1.sym
{
T 42500 47600 5 10 0 0 270 0 1
device=CAPACITOR
T 42000 47500 5 10 1 1 0 6 1
refdes=C3
T 42700 47600 5 10 0 0 270 0 1
symversion=0.1
T 42000 47100 5 10 1 1 0 6 1
value=18pF
T 41800 47800 5 10 0 1 0 0 1
footprint=JUMPER2
}
C 41900 46600 1 0 0 gnd-1.sym
C 42600 46600 1 0 0 gnd-1.sym
N 43800 48500 42000 48500 4
N 42000 48500 42000 47800 4
N 43800 48200 42700 48200 4
N 42700 48200 42700 47800 4
C 42900 50800 1 0 0 resistor-1.sym
{
T 43200 51200 5 10 0 0 0 0 1
device=RESISTOR
T 43100 51100 5 10 1 1 0 0 1
refdes=R1
T 43400 51100 5 10 1 1 0 0 1
value=2.2k
T 42900 50800 5 10 0 1 0 0 1
footprint=ACY400
}
C 43300 49900 1 0 0 nc-left-1.sym
{
T 43300 50300 5 10 0 0 0 0 1
value=NoConnection
T 43300 50700 5 10 0 0 0 0 1
device=DRC_Directive
}
C 43300 49600 1 0 0 nc-left-1.sym
{
T 43300 50000 5 10 0 0 0 0 1
value=NoConnection
T 43300 50400 5 10 0 0 0 0 1
device=DRC_Directive
}
C 43300 47800 1 0 0 nc-left-1.sym
{
T 43300 48200 5 10 0 0 0 0 1
value=NoConnection
T 43300 48600 5 10 0 0 0 0 1
device=DRC_Directive
}
C 43300 47500 1 0 0 nc-left-1.sym
{
T 43300 47900 5 10 0 0 0 0 1
value=NoConnection
T 43300 48300 5 10 0 0 0 0 1
device=DRC_Directive
}
C 43300 47200 1 0 0 nc-left-1.sym
{
T 43300 47600 5 10 0 0 0 0 1
value=NoConnection
T 43300 48000 5 10 0 0 0 0 1
device=DRC_Directive
}
C 47400 46900 1 0 0 nc-right-1.sym
{
T 47500 47400 5 10 0 0 0 0 1
value=NoConnection
T 47500 47600 5 10 0 0 0 0 1
device=DRC_Directive
}
C 47400 47200 1 0 0 nc-right-1.sym
{
T 47500 47700 5 10 0 0 0 0 1
value=NoConnection
T 47500 47900 5 10 0 0 0 0 1
device=DRC_Directive
}
C 48100 48400 1 0 0 nc-right-1.sym
{
T 48200 48900 5 10 0 0 0 0 1
value=NoConnection
T 48200 49100 5 10 0 0 0 0 1
device=DRC_Directive
}
C 47400 48700 1 0 0 nc-right-1.sym
{
T 47500 49200 5 10 0 0 0 0 1
value=NoConnection
T 47500 49400 5 10 0 0 0 0 1
device=DRC_Directive
}
C 47400 49900 1 0 0 nc-right-1.sym
{
T 47500 50400 5 10 0 0 0 0 1
value=NoConnection
T 47500 50600 5 10 0 0 0 0 1
device=DRC_Directive
}
C 47400 50200 1 0 0 nc-right-1.sym
{
T 47500 50700 5 10 0 0 0 0 1
value=NoConnection
T 47500 50900 5 10 0 0 0 0 1
device=DRC_Directive
}
C 47400 50500 1 0 0 nc-right-1.sym
{
T 47500 51000 5 10 0 0 0 0 1
value=NoConnection
T 47500 51200 5 10 0 0 0 0 1
device=DRC_Directive
}
C 47400 50800 1 0 0 nc-right-1.sym
{
T 47500 51300 5 10 0 0 0 0 1
value=NoConnection
T 47500 51500 5 10 0 0 0 0 1
device=DRC_Directive
}
C 47400 50800 1 0 0 nc-right-1.sym
{
T 47500 51300 5 10 0 0 0 0 1
value=NoConnection
T 47500 51500 5 10 0 0 0 0 1
device=DRC_Directive
}
C 47400 50800 1 0 0 nc-right-1.sym
{
T 47500 51300 5 10 0 0 0 0 1
value=NoConnection
T 47500 51500 5 10 0 0 0 0 1
device=DRC_Directive
}
C 40200 47200 1 0 0 gnd-1.sym
C 40100 48400 1 270 0 capacitor-1.sym
{
T 40800 48200 5 10 0 0 270 0 1
device=CAPACITOR
T 40400 48100 5 10 1 1 0 0 1
refdes=C1
T 41000 48200 5 10 0 0 270 0 1
symversion=0.1
T 40400 47700 5 10 1 1 0 0 1
value=0.1uF
T 40200 48100 5 10 0 1 0 0 1
footprint=JUMPER2
}
C 41000 47200 1 0 0 gnd-1.sym
C 40900 48400 1 270 0 capacitor-2.sym
{
T 41600 48200 5 10 0 0 270 0 1
device=POLARIZED_CAPACITOR
T 41400 48000 5 10 1 1 0 0 1
refdes=C2
T 41800 48200 5 10 0 0 270 0 1
symversion=0.1
T 41400 47800 5 10 1 1 0 0 1
value=10uF
T 40900 48400 5 10 0 1 0 0 1
footprint=RCY100P
}
C 58300 41600 1 0 0 nc-bottom-1.sym
{
T 58300 42000 5 10 0 0 0 0 1
value=NoConnection
T 58300 42400 5 10 0 0 0 0 1
device=DRC_Directive
}
N 58600 42700 58100 42700 4
N 58100 42700 58100 42500 4
N 43800 47000 43800 46700 4
C 57600 41900 1 0 0 resistor-variable-3.sym
{
T 58400 42600 5 10 0 0 0 0 1
device=VARIABLE_RESISTOR
T 58200 42400 5 10 1 1 0 0 1
refdes=VR5
T 58200 42200 5 10 1 1 0 0 1
value=10k
T 58000 41800 5 10 0 1 0 0 1
footprint=SIP3
}
C 59100 42200 1 0 1 BNC-2.sym
{
T 58750 42650 5 10 0 0 0 6 1
device=BNC
T 59100 43000 5 10 1 1 0 6 1
refdes=CONN3
T 59000 42400 5 10 0 1 0 0 1
footprint=BNC-small
T 58500 43200 5 10 1 1 0 0 1
value=Z OUT
}
N 59000 42200 58900 42200 4
C 40100 48400 1 0 0 vcc-1.sym
C 40900 48400 1 0 0 vcc-1.sym
C 42700 50900 1 0 0 vcc-1.sym
T 40000 41100 9 18 1 0 0 0 1
Oscilloscope Serial Terminal
T 40000 40700 9 10 1 0 0 0 1
1.0 (February 13, 2009)
T 40000 40900 9 10 1 0 0 0 1
Matt Sarnoff (www.msarnoff.org)
N 57600 43300 57600 42000 4
T 40100 41500 9 10 1 0 0 0 9
U1 can be any high slew rate, single-supply quad op amp
U3 can be any single-supply op amp, it's just a buffer
Current through R6 should be about 5 mA
VGND should be close to 2.4V; may be less if current through R7 is less than Z1's zener current
Set VR1 so the output from U1 pin 8 is roughly VGND - 1.0V
Set VR2 so the output from U1 pin 7 is roughly VGND + 1.0V
VR3, VR4, and VR5 are to compensate for ringing.
Start them at about 1K and adjust to get a clean picture.

C 42200 50500 1 0 0 resistor-1.sym
{
T 42500 50900 5 10 0 0 0 0 1
device=RESISTOR
T 42400 50700 5 10 1 1 0 0 1
refdes=R2
T 42700 50700 5 10 1 1 0 0 1
value=1k
T 42200 50500 5 10 0 1 0 0 1
footprint=ACY400
}
C 42900 50200 1 0 0 resistor-1.sym
{
T 43200 50600 5 10 0 0 0 0 1
device=RESISTOR
T 43100 50400 5 10 1 1 0 0 1
refdes=R3
T 43400 50400 5 10 1 1 0 0 1
value=1k
T 42900 50200 5 10 0 1 0 0 1
footprint=ACY400
}
N 43800 50600 43100 50600 4
N 42200 50600 41300 50600 4
C 40500 50500 1 0 0 input-1.sym
{
T 40500 50800 5 10 0 0 0 0 1
device=INPUT
T 40400 50600 5 10 1 1 0 7 1
value=TX
T 40500 50500 5 10 0 1 0 0 1
net=TX:1
}
C 41300 50400 1 180 0 output-1.sym
{
T 41200 50100 5 10 0 0 180 0 1
device=OUTPUT
T 40400 50300 5 10 1 1 0 7 1
value=RX
T 41300 50400 5 10 0 1 0 0 1
net=RX:1
}
N 42900 50300 41300 50300 4
C 43100 49400 1 0 1 switch-spst-1.sym
{
T 42700 50100 5 10 0 0 0 6 1
device=SPST
T 42500 49600 5 10 1 1 0 6 1
refdes=S1
T 42600 49300 5 10 0 1 0 6 1
footprint=JUMPER2
}
N 43800 49400 43100 49400 4
C 42200 49100 1 0 0 gnd-1.sym
T 42200 49400 9 10 1 0 0 7 1
PROFILE SELECT
C 47400 45500 1 0 0 resistor-1.sym
{
T 47700 45900 5 10 0 0 0 0 1
device=RESISTOR
T 47600 45700 5 10 1 1 0 0 1
refdes=R5
T 48000 45700 5 10 1 1 0 0 1
value=1k
T 47400 45500 5 10 0 1 0 0 1
footprint=ACY400
}
C 47400 45100 1 0 0 resistor-1.sym
{
T 47700 45500 5 10 0 0 0 0 1
device=RESISTOR
T 47600 45300 5 10 1 1 0 0 1
refdes=R6
T 48000 45300 5 10 1 1 0 0 1
value=1k
T 47400 45100 5 10 0 1 0 0 1
footprint=ACY400
}
N 48100 48500 47400 48500 4
C 44800 44100 1 0 0 ATtiny45-1.sym
{
T 45300 46400 5 10 1 1 0 6 1
refdes=U5
T 45100 46550 5 10 0 0 0 0 1
device=ATtiny45
T 45100 46750 5 10 0 0 0 0 1
footprint=DIP8
T 46400 46400 5 10 1 1 0 0 1
device=ATtiny45
}
C 43900 44300 1 0 0 resistor-1.sym
{
T 44200 44700 5 10 0 0 0 0 1
device=RESISTOR
T 44100 44600 5 10 1 1 0 0 1
refdes=R4
T 44500 44600 5 10 1 1 0 0 1
value=2.2k
T 43900 44300 5 10 0 1 0 0 1
footprint=ACY300
}
C 43700 44400 1 0 0 vcc-1.sym
N 47400 47900 49100 47900 4
N 49100 45600 49100 53800 4
N 49100 45600 48300 45600 4
N 47400 48200 49200 48200 4
N 49200 45200 49200 53200 4
N 49200 45200 48300 45200 4
C 47400 45900 1 0 0 nc-right-1.sym
{
T 47500 46400 5 10 0 0 0 0 1
value=NoConnection
T 47500 46600 5 10 0 0 0 0 1
device=DRC_Directive
}
T 46100 43800 9 10 1 0 0 3 1
KEYBOARD BUFFER/DECODER
C 40900 44200 1 0 0 minidin6-gnd.sym
{
T 41500 46200 5 10 1 1 0 0 1
refdes=CONN4
T 40900 47400 5 10 0 0 0 0 1
footprint=minidin6h
T 41500 46000 5 10 1 1 0 0 1
device=minidin-6
}
C 40800 44200 1 0 0 gnd-1.sym
C 42800 44200 1 0 0 gnd-1.sym
C 41800 43900 1 0 0 gnd-1.sym
C 40400 45600 1 0 0 nc-left-1.sym
{
T 40400 46000 5 10 0 0 0 0 1
value=NoConnection
T 40400 46400 5 10 0 0 0 0 1
device=DRC_Directive
}
C 40400 44800 1 0 0 nc-left-1.sym
{
T 40400 45200 5 10 0 0 0 0 1
value=NoConnection
T 40400 45600 5 10 0 0 0 0 1
device=DRC_Directive
}
C 40000 45300 1 0 0 vcc-1.sym
N 40900 45300 40200 45300 4
N 43100 45300 42900 45300 4
C 43000 45000 1 0 0 gnd-1.sym
N 42900 44900 43600 44900 4
N 43600 44900 43600 43700 4
N 43600 43700 48100 43700 4
N 48100 43700 48100 44800 4
N 48100 44800 47400 44800 4
N 42900 45700 43300 45700 4
N 43300 43400 43300 45700 4
N 43300 43400 47800 43400 4
N 47800 43400 47800 44400 4
N 47800 44400 47400 44400 4
T 41900 43600 9 10 1 0 0 3 1
PS/2 KEYBOARD
C 58900 41900 1 0 0 gnd-1.sym
C 49500 49900 1 0 0 zener-1.sym
{
T 49700 49700 5 10 1 1 0 0 1
device=1N5221
T 49800 50400 5 10 1 1 0 0 1
refdes=Z1
T 50100 50400 5 10 1 1 0 0 1
value=2k4
T 50300 50100 5 10 0 1 0 0 1
footprint=ACY300
}
C 49400 49800 1 0 0 gnd-1.sym
C 50400 51000 1 0 0 vcc-1.sym
C 50500 51000 1 270 0 resistor-1.sym
{
T 50900 50700 5 10 0 0 270 0 1
device=RESISTOR
T 50800 50600 5 10 1 1 0 0 1
refdes=R7
T 50800 50400 5 10 1 1 0 0 1
value=470
T 50500 51000 5 10 0 1 0 0 1
footprint=ACY400
}
N 50400 50100 51400 50100 4
C 51700 50700 1 0 0 vcc-1.sym
C 51800 49600 1 0 0 gnd-1.sym
N 52500 50300 52500 51200 4
N 52500 51200 51300 51200 4
N 51300 51200 51300 50500 4
N 51300 50500 51400 50500 4
C 50200 47700 1 0 0 resistor-variable-3.sym
{
T 51000 48600 5 10 0 0 0 0 1
device=VARIABLE_RESISTOR
T 50100 48100 5 10 1 1 0 0 1
refdes=VR1
T 50100 47900 5 10 1 1 0 0 1
value=100k
T 50600 47800 5 10 0 1 0 0 1
footprint=SIP3
}
C 50100 47500 1 0 0 gnd-1.sym
C 50900 47800 1 0 0 vcc-1.sym
C 51700 48900 1 0 0 vcc-1.sym
C 51800 47800 1 0 0 gnd-1.sym
N 52500 48500 52500 49400 4
N 52500 49400 51300 49400 4
N 51300 49400 51300 48700 4
N 51300 48700 51400 48700 4
N 51400 48300 50700 48300 4
N 52400 48500 54500 48500 4
C 50200 44600 1 0 0 resistor-variable-3.sym
{
T 51000 45500 5 10 0 0 0 0 1
device=VARIABLE_RESISTOR
T 50100 45000 5 10 1 1 0 0 1
refdes=VR2
T 50100 44800 5 10 1 1 0 0 1
value=100K
T 50600 44700 5 10 0 1 0 0 1
footprint=SIP3
}
C 50100 44400 1 0 0 gnd-1.sym
C 50900 44700 1 0 0 vcc-1.sym
C 51800 44700 1 0 0 gnd-1.sym
N 52500 45400 52500 46300 4
N 52500 46300 51300 46300 4
N 51300 46300 51300 45600 4
N 51300 45600 51400 45600 4
N 51400 45200 50700 45200 4
N 52400 45400 53700 45400 4
C 55800 47600 1 0 0 gnd-1.sym
C 55500 49200 1 0 0 capacitor-1.sym
{
T 55700 49900 5 10 0 0 0 0 1
device=CAPACITOR
T 56100 49700 5 10 1 1 0 0 1
refdes=C7
T 55700 50100 5 10 0 0 0 0 1
symversion=0.1
T 56100 49500 5 10 1 1 0 0 1
value=560pF polystyrene film
T 55500 49200 5 10 0 1 0 0 1
footprint=RCY100
}
N 56400 49400 56500 49400 4
C 53500 50100 1 0 0 input-2.sym
{
T 53500 50300 5 10 0 0 0 0 1
net=HSYNC:1
T 54100 50800 5 10 0 0 0 0 1
device=none
T 54000 50200 5 10 1 1 0 7 1
value=HSYNC
}
C 54900 49700 1 0 0 4066-3.sym
{
T 55200 50750 5 10 0 0 0 0 1
device=4066
T 56200 50900 5 10 1 1 0 6 1
refdes=U2
T 55200 50950 5 10 0 0 0 0 1
footprint=DIP14
T 55900 50500 5 10 0 1 0 0 1
slot=4
}
N 55700 49700 54900 49700 4
N 55500 49400 55400 49400 4
N 56500 48300 56500 50600 4
C 55500 51100 1 0 0 vcc-1.sym
C 55700 48700 1 0 0 vcc-1.sym
N 55400 48500 55400 50500 4
N 55400 50500 54900 50500 4
N 54900 50500 54900 50600 4
C 54800 49400 1 0 0 gnd-1.sym
C 54500 47800 1 0 0 resistor-1.sym
{
T 54800 48200 5 10 0 0 0 0 1
device=RESISTOR
T 54600 48100 5 10 1 1 0 0 1
refdes=R9
T 54900 48100 5 10 1 1 0 0 1
value=100k
T 54500 47800 5 10 0 1 0 0 1
footprint=ACY400
}
N 55400 47900 55400 48100 4
C 54500 48400 1 0 0 resistor-1.sym
{
T 54800 48800 5 10 0 0 0 0 1
device=RESISTOR
T 54600 48700 5 10 1 1 0 0 1
refdes=R8
T 55000 48700 5 10 1 1 0 0 1
value=68k
T 54500 48400 5 10 0 1 0 0 1
footprint=ACY400
}
C 55800 43500 1 0 0 gnd-1.sym
C 55500 45100 1 0 0 capacitor-1.sym
{
T 55700 45800 5 10 0 0 0 0 1
device=CAPACITOR
T 56100 45600 5 10 1 1 0 0 1
refdes=C8
T 55700 46000 5 10 0 0 0 0 1
symversion=0.1
T 56100 45400 5 10 1 1 0 0 1
value=560pF polystyrene film
T 55500 45100 5 10 0 1 0 0 1
footprint=RCY100
}
N 56400 45300 56500 45300 4
N 55400 44400 55400 46400 4
N 56500 44200 56500 46500 4
N 54900 46400 55400 46400 4
C 53500 46000 1 0 0 input-2.sym
{
T 53500 46200 5 10 0 0 0 0 1
net=VSYNC:1
T 54100 46700 5 10 0 0 0 0 1
device=none
T 54000 46100 5 10 1 1 0 7 1
value=VSYNC
}
C 54900 45600 1 0 0 4066-3.sym
{
T 55200 46650 5 10 0 0 0 0 1
device=4066
T 56200 46800 5 10 1 1 0 6 1
refdes=U2
T 55200 46850 5 10 0 0 0 0 1
footprint=DIP14
T 54900 45600 5 10 0 0 0 0 1
slot=1
}
N 55700 45600 54800 45600 4
C 55500 47000 1 0 0 vcc-1.sym
C 55700 44600 1 0 0 vcc-1.sym
C 54700 45300 1 0 0 gnd-1.sym
N 54900 46400 54900 46500 4
N 55500 45300 55400 45300 4
C 54500 43700 1 0 0 resistor-1.sym
{
T 54800 44100 5 10 0 0 0 0 1
device=RESISTOR
T 54500 44000 5 10 1 1 0 0 1
refdes=R11
T 54900 44000 5 10 1 1 0 0 1
value=100k
T 54500 43700 5 10 0 1 0 0 1
footprint=ACY400
}
N 55400 43800 55400 44000 4
C 54500 44300 1 0 0 resistor-1.sym
{
T 54800 44700 5 10 0 0 0 0 1
device=RESISTOR
T 54500 44600 5 10 1 1 0 0 1
refdes=R10
T 54900 44600 5 10 1 1 0 0 1
value=2.2M
T 54500 44300 5 10 0 1 0 0 1
footprint=ACY400
}
N 53700 45400 53700 44400 4
N 53700 44400 54500 44400 4
C 51400 49900 1 0 0 dual-opamp-1.sym
{
T 52100 49900 5 10 1 1 0 0 1
device=LM358
T 51500 50800 5 10 1 1 0 0 1
refdes=U3
T 51600 51800 5 10 0 0 0 0 1
footprint=DIP8
T 51600 52400 5 10 0 0 0 0 1
symversion=0.2
T 55600 51000 5 10 0 1 0 0 1
slot=2
}
T 49500 47800 9 10 1 0 0 0 1
X SIZE
T 49500 44700 9 10 1 0 0 0 1
Y SIZE
C 58300 47900 1 0 0 nc-bottom-1.sym
{
T 58300 48500 5 10 0 0 0 0 1
value=NoConnection
T 58300 48900 5 10 0 0 0 0 1
device=DRC_Directive
}
N 58600 49000 58100 49000 4
N 58100 49000 58100 48800 4
C 57600 48200 1 0 0 resistor-variable-3.sym
{
T 58400 49100 5 10 0 0 0 0 1
device=VARIABLE_RESISTOR
T 58200 48600 5 10 1 1 0 0 1
refdes=VR3
T 58200 48400 5 10 1 1 0 0 1
value=10k
T 58000 48300 5 10 0 1 0 0 1
footprint=SIP3
}
C 59100 48500 1 0 1 BNC-2.sym
{
T 58750 49150 5 10 0 0 0 6 1
device=BNC
T 59100 49300 5 10 1 1 0 6 1
refdes=CONN1
T 59000 48900 5 10 0 1 0 0 1
footprint=BNC-small
T 58500 49500 5 10 1 1 0 0 1
value=X OUT
}
N 58900 48500 59000 48500 4
C 58900 48200 1 0 0 gnd-1.sym
C 56700 48100 1 0 0 capacitor-2.sym
{
T 56900 48800 5 10 0 0 0 0 1
device=POLARIZED_CAPACITOR
T 56800 48600 5 10 1 1 0 0 1
refdes=C9
T 56900 49000 5 10 0 0 0 0 1
symversion=0.1
T 57200 48600 5 10 1 1 0 0 1
value=4.7uF
T 56700 48100 5 10 0 1 0 0 1
footprint=RCY100P
}
C 56700 44000 1 0 0 capacitor-2.sym
{
T 56900 44700 5 10 0 0 0 0 1
device=POLARIZED_CAPACITOR
T 56800 44500 5 10 1 1 0 0 1
refdes=C10
T 56900 44900 5 10 0 0 0 0 1
symversion=0.1
T 57200 44500 5 10 1 1 0 0 1
value=4.7uF
T 56700 44000 5 10 0 1 0 0 1
footprint=RCY100P
}
N 56700 48300 56400 48300 4
N 56700 44200 56400 44200 4
C 58300 43800 1 0 0 nc-bottom-1.sym
{
T 58300 44400 5 10 0 0 0 0 1
value=NoConnection
T 58300 44800 5 10 0 0 0 0 1
device=DRC_Directive
}
N 58100 46500 58100 44700 4
C 57600 44100 1 0 0 resistor-variable-3.sym
{
T 58400 45000 5 10 0 0 0 0 1
device=VARIABLE_RESISTOR
T 58200 44500 5 10 1 1 0 0 1
refdes=VR4
T 58200 44300 5 10 1 1 0 0 1
value=10k
T 58000 44200 5 10 0 1 0 0 1
footprint=SIP3
}
C 59100 46000 1 0 1 BNC-2.sym
{
T 58750 46650 5 10 0 0 0 6 1
device=BNC
T 59100 46800 5 10 1 1 0 6 1
refdes=CONN2
T 59000 46400 5 10 0 1 0 0 1
footprint=BNC-small
T 58500 47000 5 10 1 1 0 0 1
value=Y OUT
}
N 58100 46500 58600 46500 4
C 58200 46500 1 270 0 capacitor-1.sym
{
T 58900 46300 5 10 0 0 270 0 1
device=CAPACITOR
T 58500 45700 5 10 1 1 0 0 1
refdes=C11
T 59100 46300 5 10 0 0 270 0 1
symversion=0.1
T 58500 45500 5 10 1 1 0 0 1
value=0.001uF film
T 58500 46100 5 10 0 1 0 0 1
footprint=JUMPER2
}
C 58300 45300 1 0 0 gnd-1.sym
N 58900 46000 59000 46000 4
C 58900 45700 1 0 0 gnd-1.sym
C 51700 47000 1 0 0 vcc-1.sym
C 51900 46400 1 0 0 capacitor-2.sym
{
T 52100 47100 5 10 0 0 0 0 1
device=POLARIZED_CAPACITOR
T 52100 46900 5 10 1 1 0 0 1
refdes=C6
T 52100 47300 5 10 0 0 0 0 1
symversion=0.1
T 52400 46900 5 10 1 1 0 0 1
value=1uF
T 52500 46300 5 10 0 1 0 0 1
footprint=RCY100P
}
C 51000 46400 1 0 0 capacitor-1.sym
{
T 51200 47100 5 10 0 0 0 0 1
device=CAPACITOR
T 51100 46900 5 10 1 1 0 0 1
refdes=C5
T 51200 47300 5 10 0 0 0 0 1
symversion=0.1
T 51400 46900 5 10 1 1 0 0 1
value=0.1uF
T 51600 46300 5 10 0 1 0 0 1
footprint=JUMPER2
}
C 50900 46300 1 0 0 gnd-1.sym
C 52700 46300 1 0 0 gnd-1.sym
N 51900 45800 51900 47000 4
N 52400 50300 53100 50300 4
N 53100 43800 53100 50300 4
N 54500 43800 53100 43800 4
N 54500 47900 53100 47900 4
T 52600 50400 9 10 1 0 0 0 1
VGND
N 43800 46700 49400 46700 4
N 49400 43300 49400 46700 4
N 49400 43300 57600 43300 4
C 46200 52100 1 0 0 CON_Atmel_AVRISP_6PIN-1.sym
{
T 47100 54100 5 10 1 1 0 6 1
refdes=CONN5
T 46200 55700 5 10 0 0 0 0 1
device=Atmel AVRISP Connector
T 46200 54300 5 10 0 0 0 0 1
footprint=HEADER6_2
}
C 47300 52000 1 0 0 gnd-1.sym
C 49200 53500 1 0 0 vcc-1.sym
N 47400 53500 49400 53500 4
N 47400 52600 47700 52600 4
N 47700 52600 47700 51800 4
N 47700 51800 43800 51800 4
N 43800 51800 43800 50900 4
N 49200 53200 47400 53200 4
N 47400 53800 49100 53800 4
N 47400 52900 49000 52900 4
N 49000 52900 49000 47600 4
N 49000 47600 47400 47600 4
C 43600 53200 1 0 0 gnd-1.sym
C 43100 53100 1 0 1 input-1.sym
{
T 43100 53400 5 10 0 0 0 6 1
device=INPUT
T 43200 53200 5 10 1 1 0 1 1
value=RX
T 43100 53100 5 10 0 1 0 6 1
net=RX:1
}
C 42300 53000 1 180 1 output-1.sym
{
T 42400 52700 5 10 0 0 180 6 1
device=OUTPUT
T 43200 52900 5 10 1 1 0 1 1
value=TX
T 42300 53000 5 10 0 1 0 6 1
net=TX:1
}
C 40600 52400 1 0 0 connector4-1.sym
{
T 42400 53300 5 10 0 0 0 0 1
device=CONNECTOR_4
T 40600 53800 5 10 1 1 0 0 1
refdes=CONN6
T 40600 53000 5 10 0 1 0 0 1
footprint=JUMPER4
}
N 42300 53500 43700 53500 4
C 43500 52600 1 0 0 vcc-1.sym
N 42300 52600 43700 52600 4
C 55400 43800 1 0 0 quad_opamp-mp-2.sym
{
T 56000 43700 5 10 1 1 0 0 1
device=MC34074
T 55500 44700 5 10 1 1 0 0 1
refdes=U1
T 57800 46100 5 10 0 0 0 0 1
footprint=DIP14
T 55600 46300 5 10 0 0 0 0 1
symversion=0.1
}
C 51400 45000 1 0 0 quad_opamp-mp-2.sym
{
T 52000 44900 5 10 1 1 0 0 1
device=MC34074
T 51500 45900 5 10 1 1 0 0 1
refdes=U1
T 53800 47300 5 10 0 0 0 0 1
footprint=DIP14
T 51600 47500 5 10 0 0 0 0 1
symversion=0.1
T 51400 45000 5 10 0 0 0 0 1
slot=2
}
C 51400 48100 1 0 0 quad_opamp-mp-2.sym
{
T 52000 48000 5 10 1 1 0 0 1
device=MC34074
T 51500 49000 5 10 1 1 0 0 1
refdes=U1
T 53800 50400 5 10 0 0 0 0 1
footprint=DIP14
T 51600 50600 5 10 0 0 0 0 1
symversion=0.1
T 51400 48100 5 10 0 0 0 0 1
slot=3
}
C 55400 47900 1 0 0 quad_opamp-mp-2.sym
{
T 56000 47800 5 10 1 1 0 0 1
device=MC34074
T 55500 48800 5 10 1 1 0 0 1
refdes=U1
T 57800 50200 5 10 0 0 0 0 1
footprint=DIP14
T 55600 50400 5 10 0 0 0 0 1
symversion=0.1
T 55400 47900 5 10 0 0 0 0 1
slot=4
}
C 44100 45000 1 0 0 gnd-1.sym
C 44000 46200 1 270 0 capacitor-1.sym
{
T 44700 46000 5 10 0 0 270 0 1
device=CAPACITOR
T 44300 45900 5 10 1 1 0 0 1
refdes=C12
T 44900 46000 5 10 0 0 270 0 1
symversion=0.1
T 44300 45500 5 10 1 1 0 0 1
value=0.1uF
T 44100 45900 5 10 0 1 0 0 1
footprint=JUMPER2
}
C 44000 46200 1 0 0 vcc-1.sym