On 9/2/2010 1:31 PM, BLuRry wrote:
On Sep 2, 1:23 pm, schmidtd<schmi...@my-deja.com> wrote:On Sep 2, 1:48 pm, BLuRry<brendan.rob...@gmail.com> wrote:Volt meter? :-) You can see the voltage reading bounce around on the RX pin when there's data coming over. If anything, it's the best thing to check that you're not going to blow a serial port elsewhere.One time, I had a guy tell me he just stuck his tongue against the pins to feel for it... I figure I'll use a slightly more sanitary method.Ah yes..< 12 volts -- but how many amps? ;-)
I've played around with a phone company 1.5 volt wet cell. Really nice clear case, about 8x16x24, but it melted/burned most anything connected.