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I am using 4 servo motors operating on same arduino board.Power source I am using was 12V 2A adapter.Is it sufficient? Answered

Since a servo motor operating voltage is about 6v.Is it safe for motor to use 12V 2A adapter?Power for all 4 servo motors are is supplied from ardunio board.All 4 servo motors are connected in parallel. 

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steveastrouk

2 years ago

No, its NOT safe !!

YOU NEED A 6V supply !!!

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ganesh27steveastrouk

Answer 2 years ago

Auctually operating voltage for arduino board was 12V.I connected the motors from 5V pin in arduino board.I heard that stall current of a servo motor is 400mA.Since I am using 4 servo motors I have to supply 1.6A in worst case.So I am using a 12V 2A adapter

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Quadrifoglioganesh27

Answer 2 years ago

http://forum.arduino.cc/index.php?topic=113591.0

“The biggest thing to keep in mind is that the pins on the Arduino are signal, not power.”

“An Arduino is capable of supplying no more than 40mA of current through any one IO pin, and the total current drawn by the ATMega328P chip (including what is drawn from its IO pins) must not exceed 200mA.”

Google and forum.arduino.cc can be very helpful in executing your Arduino projects.

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Downunder35mganesh27

Answer 2 years ago

You can misuse the 5V pin on the Arduino but it won't be good for it.
This is for sensors and similar so not for high demand use.
And with 5V the servo will not run happy either.
Do as Iceng suggested and use a dedicated power supply for both Arduino and the Servos.

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icengganesh27

Answer 2 years ago

As Steve pointed out the 12V can BURN out your servos by letting them draw 800ma each.

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iceng

2 years ago

Here is how to power a micro and servo with two power supplies.

Servo2.PNG