Hi all, Been searching for a 8 bit or 16 bit microcontroller with the lowest power consumption possible. Any recommendation? I am looking for those with at least 10 GPIO. My intention is to power the uC using a 3000mAh battery for maybe 5 years...? Is this possible? The uController may be in normal mode at most 4 hours a day and the remaining in sleep mode... Thanks for any infor provided.... If there are no such a low powered uC,any battery that can provide a higher mAh? Have a good day. chicken_feet Send instant messages to your online friends http://uk.messenger.yahoo.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist