> There are some issues, but there are generally not hard to > deal with if considered in the design from the start. My market is hobbyist and 'small scale professionals'. For that segment those issues can be very hard to deal with. But I totally agree that they can be dealt with by a competent designer when he is present early enough in the design process. > I didn't say "variable", only that the programmer needs to > control Vdd. By that I meant being able to turn it on and off OK, agree. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist