So im fairly new at using an arduino, i have had some experience with the coding of it, but little with the hardware. For a resent project that im doing, i need to control 5 servo motors, i know that it is not possible to power all the motors from the arduino, so i would have to power them from an external power supply, the problem is that im not sure how to do this.
Hi,I'm new to this servo control thing too. Based on the great description above I jotted down a little diagram of a simple servo motor control. I just wanted to check and see if this diagram is accurate and I understood the post above correctly. My diagram is http://dl.dropbox.com/u/2622595/Servo_control_basics.pdfDoes this look right?
That looks OK to me, but you should specify in the diagram what kind of "AA" cells you are using; normal alkaline cells will be 1.5 VDC per cell, while rechargeables (generally) will be 1.2 VDC per cell. Based on your diagram, I am assuming you are meaning the latter rather than the former, as driving a servo with 7.5 VDC (if using alkalines) may shorten its life (most servos are rated to run on 4.5 - 6.0 VDC).
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