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Electronics => Electronics => Topic started by: bennyber on November 11, 2012, 12:38:05 PM

Title: How to use 5V servos with axon mote that operates on 3.3V?
Post by: bennyber on November 11, 2012, 12:38:05 PM
Hello

Can anyone, please, tell me how to use 5V servos
with axon mote that operates on 3.3V?

Thanks, in advance.
Title: Re: How to use 5V servos with axon mote that operates on 3.3V?
Post by: newInRobotics on November 12, 2012, 02:53:17 AM
You use separate power supply :)
Title: Re: How to use 5V servos with axon mote that operates on 3.3V?
Post by: stridera on November 12, 2012, 03:26:00 AM
Or use a voltage divider to reduce it to the required voltage.

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/voldiv.html (http://hyperphysics.phy-astr.gsu.edu/hbase/electric/voldiv.html)
Title: Re: How to use 5V servos with axon mote that operates on 3.3V?
Post by: bennyber on November 12, 2012, 05:11:49 AM
One really nice guy 'palmisano' already answered this question (on you-tube):

"The Axon Mote has regulated (3.3V) and unregulated (battery voltage) power buses. You hook up the servo to the unregulated power bus. Servos work with any PWM signal above 3V."

Thank you palmisano.
Title: Re: How to use 5V servos with axon mote that operates on 3.3V?
Post by: Soeren on November 12, 2012, 06:30:11 PM
Hi,

One really nice guy 'palmisano' [...]
Known here as Admin :)
Title: Re: How to use 5V servos with axon mote that operates on 3.3V?
Post by: Gertlex on November 14, 2012, 07:43:08 PM
He also made the board, so he's in this for the money. Nice? I don't know about that :D
Title: Re: How to use 5V servos with axon mote that operates on 3.3V?
Post by: sebastian on November 20, 2012, 01:30:13 PM
The servo can be powered independently ,it only needs the signal from the micro controller, make sure the ground of the signal and the ground of the power supply are common