Quote Originally Posted by El_AMPo View Post
Right now the circuit is drawing 0,5mA and that is low but maybe i missing something else


My question is:
Did I miss something else to reduce power?
A quick look at the datasheet suggests you could save considerable power by using sleep mode. Conceptually you set up the watchdog to wake you up after a certain number of clock cycles, then go to sleep and draw only nano-Amps until you are awakened. I believe you can set the watchdog, using the prescaler, to 128 clocks (or 64, or 32, etc.). If the processor has nothing to do, you can reset the watchdog, then go to sleep and get awakened after an exact number of clock cycles, increment your counters and display, and do anything else you need to do before resetting the watchdog and going back to sleep. If you can sleep 1/2 the time, you can save 1/2 the power - it's pretty linear.