This guy really knows how to take all the fun out of PICing  :)

Calvin

>
>    Do you REALLY need a microcontroller for this????? Why not using a 555
>astable and a BIG divider... The error would be much less then 5 % when
>correctly adjusted! Or even better use the 555 as a monostable with large
>timing! It doesn't even have to be programmed!
>