Robert L Cochran <[EMAIL PROTECTED]> wrote: > I was planning to use a lithium polymer battery that pumps out 12v > at 1300 mA. I connected that to a power supply board which will give > me 5v output and 1100 mA current.
If that's a linear regulator, it will waste a lot of energy. If you've got a choice, a single LiIon cell delivers a voltage in the range of (3.0 ... 4.2) V (nominal voltage 3.7 V), this is a good power supply to drive an AVR directly from it, without any regulation. You just have to mind the CPU frequency limit for the given voltage, which is 10 MHz max. for the ATmega644. -- cheers, J"org .-.-. --... ...-- -.. . DL8DTL http://www.sax.de/~joerg/ NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-) _______________________________________________ AVR-chat mailing list AVR-chat@nongnu.org http://lists.nongnu.org/mailman/listinfo/avr-chat
