v 20121123 2
C 40000 40000 0 0 0 title-B.sym
C 47700 44600 1 90 0 zener-1.sym
{
T 47100 45000 5 10 0 0 90 0 1
device=ZENER_DIODE
T 47200 44900 5 10 1 1 90 0 1
refdes=Z1
T 47900 44900 5 10 1 1 90 0 1
value=5.1V
}
C 47600 45900 1 90 0 resistor-2.sym
{
T 47250 46300 5 10 0 0 90 0 1
device=RESISTOR
T 47300 46100 5 10 1 1 90 0 1
refdes=R1
T 47900 46100 5 10 1 1 90 0 1
value=2K7
}
N 47500 46800 47500 47000 4
N 47500 47000 48500 47000 4
N 47500 44600 47500 44400 4
N 45500 44400 48500 44400 4
N 47500 45900 47500 45500 4
N 47500 45700 45500 45700 4
C 45500 45800 1 180 0 output-1.sym
{
T 45400 45500 5 10 0 0 180 0 1
device=OUTPUT
T 44700 45400 5 10 1 1 0 0 1
pinlabel=Data pin (e.g.D2 on Nano)
}
C 45500 44500 1 180 0 output-1.sym
{
T 45400 44200 5 10 0 0 180 0 1
device=OUTPUT
T 44700 44600 5 10 1 1 0 0 1
pinlabel=GND
}
C 49300 47100 1 180 0 input-1.sym
{
T 49300 46800 5 10 0 0 180 0 1
device=INPUT
T 48300 46700 5 10 1 1 0 0 1
pinlabel=Right rail (+18V)
}
C 49300 44500 1 180 0 input-1.sym
{
T 49300 44200 5 10 0 0 180 0 1
device=INPUT
T 48300 44600 5 10 1 1 0 0 1
pinlabel=Left rail (GND)
}
T 48300 45700 9 10 1 0 0 0 1
To SCX digital track
T 44700 45000 9 10 1 0 0 0 1
To Arduino