I Have been following the list for a while, and I am surprised that nobody has mentioned Microchip as a valuable resource for this.

The App Note AN626, using a PIC 14C000 explain how to charge those.

Good luck

Jean-Paul





      
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist