Re: gEDA-user: Fun challenge: cat-5 cable tester

[User Tomdean <tomdean@xxxxxxxxxxxxx>]

How about 4 diodes and current limiting resistors?

tomdean

v 20060123 1
C 11100 37100 1 0 0 ATtiny28_DIP.sym
{
T 13500 43000 5 10 1 1 0 6 1
refdes=U?
}
C 15700 40500 1 0 0 diode-1.sym
{
T 16000 41000 5 10 1 1 0 0 1
refdes=D?
}
C 14600 40600 1 0 0 resistor-1.sym
{
T 14800 40900 5 10 1 1 0 0 1
refdes=R?
}
N 13800 40700 14600 40700 4
N 15500 40700 15700 40700 4
N 13800 40300 16600 40300 4
N 16600 40300 16600 40700 4
C 15700 39700 1 0 0 diode-1.sym
{
T 16000 40200 5 10 1 1 0 0 1
refdes=D?
}
C 14600 39800 1 0 0 resistor-1.sym
{
T 14800 40100 5 10 1 1 0 0 1
refdes=R?
}
N 13800 39900 14600 39900 4
N 15500 39900 15700 39900 4
N 13800 39500 16600 39500 4
N 16600 39500 16600 39900 4
C 15700 38900 1 0 0 diode-1.sym
{
T 16000 39400 5 10 1 1 0 0 1
refdes=D?
}
C 14600 39000 1 0 0 resistor-1.sym
{
T 14800 39300 5 10 1 1 0 0 1
refdes=R?
}
N 13800 39100 14600 39100 4
N 15500 39100 15700 39100 4
N 13800 38700 16600 38700 4
N 16600 38700 16600 39100 4
C 15700 38100 1 0 0 diode-1.sym
{
T 16000 38600 5 10 1 1 0 0 1
refdes=D?
}
C 14600 38200 1 0 0 resistor-1.sym
{
T 14800 38500 5 10 1 1 0 0 1
refdes=R?
}
N 13800 38300 14600 38300 4
N 15500 38300 15700 38300 4
N 13800 37900 16600 37900 4
N 16600 37900 16600 38300 4
C 9900 42300 1 0 0 leddual-1.sym
{
T 10700 42700 5 10 1 1 0 0 1
refdes=LED?
T 10700 43100 5 10 0 0 0 0 1
symversion=0.1
}
N 10800 42500 11200 42500 4
C 9900 41900 1 0 0 leddual-1.sym
{
T 10700 42300 5 10 1 1 0 0 1
refdes=LED?
T 10700 42700 5 10 0 0 0 0 1
symversion=0.1
}
N 10800 42100 11200 42100 4
C 9900 41500 1 0 0 leddual-1.sym
{
T 10700 41900 5 10 1 1 0 0 1
refdes=LED?
T 10700 42300 5 10 0 0 0 0 1
symversion=0.1
}
N 10800 41700 11200 41700 4
C 9900 41100 1 0 0 leddual-1.sym
{
T 10700 41500 5 10 1 1 0 0 1
refdes=LED?
T 10700 41900 5 10 0 0 0 0 1
symversion=0.1
}
N 10800 41300 11200 41300 4
C 9900 40700 1 0 0 leddual-1.sym
{
T 10700 41100 5 10 1 1 0 0 1
refdes=LED?
T 10700 41500 5 10 0 0 0 0 1
symversion=0.1
}
N 10800 40900 11200 40900 4
C 9900 40300 1 0 0 leddual-1.sym
{
T 10700 40700 5 10 1 1 0 0 1
refdes=LED?
T 10700 41100 5 10 0 0 0 0 1
symversion=0.1
}
N 10800 40500 11200 40500 4
C 9900 39900 1 0 0 leddual-1.sym
{
T 10700 40300 5 10 1 1 0 0 1
refdes=LED?
T 10700 40700 5 10 0 0 0 0 1
symversion=0.1
}
N 10800 40100 11200 40100 4
C 9900 39500 1 0 0 leddual-1.sym
{
T 10700 39900 5 10 1 1 0 0 1
refdes=LED?
T 10700 40300 5 10 0 0 0 0 1
symversion=0.1
}
N 10800 39700 11200 39700 4


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