What's the simplest way to trigger a pushbutton or common grounded circuits from a computer, except from LPT1? Answered
Hi every one, I have did a lot of searching on internet, and found lots of ways for control leds and eletric devices from computers. By LTP1, COM ports, and others most expensive ways, like using a usb->lpt1 true emulator to work ok on win7.
I'm asking if anyone know how can I control pushbuttons and eletrical devices, from the computer using a easy and cheap way, it can be anything, microcontrollers, usb port. I prefer the cheapest one of course. But any advice will be great.
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