Grungy pic will provide a lower pin count solution at a lower cost that out performs the 555 every time .... Sorry my $0.02 Steve On 12 December 2013 08:14, Lindy Mayfield wrote: > Oh I googled the hell out of it before asking. I have and LED flashing > with a POT to control the frequency. I also added a photo resistor to > control the speed. (It wasn't perfect because - for want of a better term= - > "amplify" the resistance to make it more "sensitive"). > > I also want to use it as a PWM to play with motors before actually > programming it into the Pi. That I think I can do without any help. :-) > > -----Original Message----- > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf > Of John Gardner > Sent: Thursday, December 12, 2013 12:01 AM > To: Microcontroller discussion list - Public. > Subject: Re: [EE] Help configuring a 555 > > > There's a vast literature on 555 apps - A little googling > will turn up much of interest. > > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .