I have looked in the PICLIST archives and I have not found what I am looking for so..... One of my clients is considering a project that could possibly use the PIC10F2xx series of controllers. I am a little concerned with these devices due to there limited program size and 12 bit instruction set. (Been there done that with the 16F506 device. Lots of pain and anguish with the program space and usable RAM.) What are groups thoughts on this series? I know that it has a limited number of I/O's and small program space but do you have some guidelines for its use? Where would you recommend it? What type of apps? Where would you be afraid of it? Looks good but just doesn't cut it. Thanks for your advice and thoughts. Phil -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist