Recommendations for Arduino bot power supply?
okay, posted more or less exact same post on @ sparkfun forums, thought put here elicit feed possible.
i'm working on first robot project. it's sort of mishmash of tech stuff caught eye.
i started down road interest in learning electronics working arduino diecimila. since time have acquired nokia n800 internet tablet.
i decided wanted rig simple diy remote controlled vehicle using nokia send commands arduino via bluetooth. purpose purchased sparkfun's blue smirf (silver), tamiya dual gearbox, , h-bridge chip.
i've had lot of fun learning how put together. curious, check out this post in this thread description of trying accomplish. this post describes did point of switching hard wired serial cable bt connection.
in fact switching cable bt 1 of least complicated aspects of project. have first version of bt vehicle , running.
my problem have 2 different power supplies: 9v batter powering arduino , 2aa pack powering motors. there couple of issues this. first, inconvenient fix 2 battery units vehicle. second, blue smirf seems draw lot of power out of 9v. finalizing first prototype today, drained 9v down barely more 7 volts (as indicated cheap radio shack multimeter). below threshold power blue smirf.
so find single power supply solution can use replace both 9v , 2aa packs. hold charge long possible. , being rechargeable bonus too. ideally, prefect power supply provide 3 separate supplies: 1 arduino , associated blue smirf, , 2 addition supplies 2 motor controls of h-bridge.
does have suggestions?
i'm working on first robot project. it's sort of mishmash of tech stuff caught eye.
i started down road interest in learning electronics working arduino diecimila. since time have acquired nokia n800 internet tablet.
i decided wanted rig simple diy remote controlled vehicle using nokia send commands arduino via bluetooth. purpose purchased sparkfun's blue smirf (silver), tamiya dual gearbox, , h-bridge chip.
i've had lot of fun learning how put together. curious, check out this post in this thread description of trying accomplish. this post describes did point of switching hard wired serial cable bt connection.
in fact switching cable bt 1 of least complicated aspects of project. have first version of bt vehicle , running.
my problem have 2 different power supplies: 9v batter powering arduino , 2aa pack powering motors. there couple of issues this. first, inconvenient fix 2 battery units vehicle. second, blue smirf seems draw lot of power out of 9v. finalizing first prototype today, drained 9v down barely more 7 volts (as indicated cheap radio shack multimeter). below threshold power blue smirf.
so find single power supply solution can use replace both 9v , 2aa packs. hold charge long possible. , being rechargeable bonus too. ideally, prefect power supply provide 3 separate supplies: 1 arduino , associated blue smirf, , 2 addition supplies 2 motor controls of h-bridge.
does have suggestions?
Arduino Forum > Forum 2005-2010 (read only) > Software > Interfacing > Recommendations for Arduino bot power supply?
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