> Yup, you can read multiple keys, but you can't quite do it in the manner > Mike is suggesting. Mike is close, but has to change his resistor > ladder to R, 2R, 4R.... to catch multiple keypresses and I wouldn't > recommend going more than 5 buttons on a plain PIC pin (using the > method kRC = T), or 7 buttons on an analog input since by the 7th > button you're at 64R (getting close to 1% tolerance values) . I didn't specify any values, actually, because I wanted that to be an exercise for the original poster, if he chose to use that method. Mike H. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist