Unfortunately, the device is going to be both transmitting and recieving. I ordered the MAX232 today, now I will just have to wait till it gets here to try it out. I figure that once i get the dang circuit actually built, I can try to worry about how I'm gonna power it while on the move. Baby steps are a good thing for novices such as myself :) On Sat, 3 Mar 2001, Kevin Wang wrote: > From James Davidheiser > > Question for the electronics savvy amongst you... > > > > I am building a circuit to interface a PIC16C71 to a serial port. > > How much serial port signalling do you need to do? If it's > single-directional, you don't need a max232, you can just use a resistor > and transistor to tie the tx line to either the idle rx line or to the > high rts line. I have a serial keypad that does this already, see > http://rightsock.com/~kjw/Wearables/SerialKeypad/ > > Bi Directional probably won't work. > > I'm also not sure how much power a max232 would draw. I'd suspect it's > too much for a serial port, but that's just my guess. > > - Kevin > James Davidheiser Drexel University Department of Physics "Tell a man that there are 400 billion stars and he'll believe you" "Say a bench has wet paint and he has to touch it" -- Subscription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" toWear-Hard Mailing List Archive (searchable): http://wearables.blu.org please, Please, *PLEASE* don't subscribe through a forward/false domain
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