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Author Topic: Microcontroller board power requirements  (Read 2865 times)

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Offline BubblesTopic starter

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Microcontroller board power requirements
« on: January 21, 2008, 09:31:22 PM »
I have this board here:

http://www.futurlec.com.au/ATMEGA8535_Controller_Technical.jsp

and on that page it says that it needs 5v to run, i was wondering 2 things.

1. can i use something like 6v to run it instead or would that be bad?

2. will this supply the power to my servos/sensors or do hey need to be wired to their own battery packs?

Offline airman00

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Re: Microcontroller board power requirements
« Reply #1 on: January 21, 2008, 09:38:43 PM »
OK so the page calls for a 5V power supply. So you would need a 5V regulator. Now to power that regulator you need a voltage of above 7 volts.

Servos should not be powered from the regulator but from a regular , unregulated 6V source , but sensors can be powered from either regulated or unregulated power , doesn't matter

My guess is the board will run at 6V , since most microcontrollers are meant to run from between 4.8 and 6 volts, I run my PIC micros @ 6V all the time.

If you are scared then take a 6V battery and attach a diode to it (which usually drops the voltage by 1 volt as a side effect )  and then connect the diode end to the microcontroller .

Any questions?

Cheers,
Eric
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