Hey guys
im pretty n00b doing a team project at Uni, designing a circuit with some lights and buttons to make a Simon Says game (where you mimic the memory series of lights) and we are using at ATMEGA88.
For the MC and infra red, we need a nice 5 volts, using only alkaline batteries, and it has a long time.
I've read that in this type of application, 3v with a step up regulator lasts alot longer than a 9v batt with a step down, since the voltage drops too quick on 9v.
I just wondered what you guys think would be the best way to power this, and maybe some links to circuits that could show us how to generate this 5volts (obviously the rest of the circuit is done). Oh and we are on a budget, so piss cheap would be appreciated.
Cheers
im pretty n00b doing a team project at Uni, designing a circuit with some lights and buttons to make a Simon Says game (where you mimic the memory series of lights) and we are using at ATMEGA88.
For the MC and infra red, we need a nice 5 volts, using only alkaline batteries, and it has a long time.
I've read that in this type of application, 3v with a step up regulator lasts alot longer than a 9v batt with a step down, since the voltage drops too quick on 9v.
I just wondered what you guys think would be the best way to power this, and maybe some links to circuits that could show us how to generate this 5volts (obviously the rest of the circuit is done). Oh and we are on a budget, so piss cheap would be appreciated.
Cheers