We have develop A PIC controler use PIC56 and PIC57.
         PIC56 with tempreture sensor and relay out put to control water
tempreture from 35'c to 80'c.and have 24 hours anti clock timer.(use in
waterheater controll).
         PIC 57 with remot controller three shift timer control. relay
out put. use in waterheater controller.
                If you have intresting about that. Ican give you the
details
                                       JingMao