need schmatic to control 10 valves

[developer]

via a serial port of a IBM notebook. ( irrigation purpose)

 

[Jim Backus]

via a serial port of a IBM notebook. ( irrigation purpose)

You might be better off buying a ready made unit such as this:

http://www.quasarelectronics.com/3108.htm

The relay outputs might be rated sufficiently to drive the 10 valves
directly, otherwise you might need intermediate relays.

Quasar are UK based.

 

[Wim Ton]

via a serial port of a IBM notebook. ( irrigation purpose)

Feed the statuslines with some level shifting to a binary to decimal (or
hex) decoder, followed by enough oopmh to drive the valves?

Wim