I posted this in the Electronics Projects first by mistake. Sorry, Anyway I'm new to programming pic chips and sofar have learned A LOT from this site, so real quick, Thanks for posting your projects and tuts. What I'm needing to know is, with a 12f683 chip, what is the difference in 12F683 E/MF, 12F683 E/P and 12F683 I/P? I'm getting ready to order some as soon as the programmer I built, (Thanks to this site) is complete.