> so, I've figured out how to turn on the dots now, > > is there a way to gain control over the dots completely? > > as in 1 dot on in different rows and columns? Here's what I'm thinking of for mine - each dot is addressable and the rows can be extended to the the right. How you drive the LED crosspoints is up to you. I'm considering a 74HC164 for each group of 8 columns and either a single 74HC164 for all the rows or a 74HC164 for each 8 columns (thereby making it possible to break the display down into 8x8 characters that can be manipulated individually) I've chosen Zetex transistors as they will switch high current quickly and also have a low saturation voltage. Another reason is that a feature I'd like to add is fading. With greater control over the pulse width (and its integrity), fading should be quite feasible http://home.clear.net.nz/pages/joecolquitt/8x8led.html > thanks, > > no typos this time... Thanks for plyaing ;-)) -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body