I have the need to monitor whether two tv media devices are on or off. I've decided that the easiest/cheapest solution would be to use pin 8 of the scart lead which is 0-0.4V when off, 5-8V for 16:9 display and 9.5-12V for 4:3 display. I need to create either a on (voltage above 5v) or off(voltage is 0V) solution which I can connect up to the Joystick plugin, which would effectively complete/break the connection on one of the buttons. I'm thinking that this could be done with either a transistor or relay but I'm not sure on the best way or components to use for this.
I'm pretty good with a soldering iron if someone has the know how to advise on a small circuit that I could construct to get a on/off switch based on output from pin 8 on scart lead.
Thanks
Simon
I'm pretty good with a soldering iron if someone has the know how to advise on a small circuit that I could construct to get a on/off switch based on output from pin 8 on scart lead.
Thanks
Simon
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