[wlug] How to run an Arduino (clone) on a 9V battery for weeks or even months

"It is quite possible to run an ATMEGA with Arduino code for weeks if not months on a normal 9V battery, but it requires a different/special Arduino (clone)." -- source: http://hwstartup.wordpress.com/2013/03/11/how-to-run-an-arduino-on-a-9v-batt... Cheers, Peter -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cms.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174