Hi all, I just have a small question. How do I make 1 general purpose output myself? I know most matrix orbital LCD's have them. But I don't wanna buy a lcd just for the output.. What I wanna do, is make a led (or anything, using a relay), go on, when I have new email. I think I can find the emailchecker somewhere on the net. (U can post a link if somebody would know something that will work) but what I need, is a simple diagram, how I can use one of my ports (USB, Serial, Printer (parralel), ... as a output.. and the software to use it. So when I have new email, it should be triggered.. when I don't have any new anymore, it should be off again... All help is welcome, thanks L
P.Port Pin 2 ----> 1K Resistor ---> Standard LED ---> P. Port Pin 18 Should work, unless you are using a relay, then you'll need to use a transistor (wired like in the DigiBus guide) to drive the relay. To program some software you can use "inpout32.dll" which you can get from www.logix4u.net. To switch LED on: Out &H378, 1 To switch LED off: Out &H378, 0
Hi all Thanks for the quick comments, Well, its going have to be a relay. but uhm.. I'm such a noob at electronics, I understand what u mean, but I have no idea how to wire it up then.. how about a little diagram? I can solder and stuff, but I need a diagram, lol.. so then I can just execute that .dll file? using one of those email-checker programs, that will execute something when u have email... I'm worried that it will stay on though (even when I don't have new email anymore). Thanks again for the quick help L
easyest way would be as way would be as star882 said, and use one of the serial handshaking lines, as long as its just one LED it will be fine.
