Servo Arduino
Spread Sheet
UNO differences
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Build in 4 square box.
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Servo library supports up to 12 motors on most Arduinos
Braid:
If you remove the servo connector (recommend replacing with a new end)
1/8" braid can be used. Without removing the end 1/4" is the smallest I
have found to go over the servo end.
Arduino Servo board 16 more.
Arduino Size: 2.76inch x 2.12inch x 0.94inch.
Box Size: 6.4 x 3.2 x 2.3 inch
The Servo library only uses Timer1 which means that it only prevents PWM being used on pins 9 and 10.
You can operate servos on any pins -
they don't have to be PWM pins. And you can use PWM on pins 3,5,6 and 11 while using servos on other pins.
Note
that the PWM produced by analogWrite() on the PWM pins is not the same
sort of pwm that is used to control a servo. It is unfortunate that the
same acronym is used for both.
...R
Arduino uses the pink digital pins 10, 11, 12, and 13 (SPI ) to communicate with the W5100 on the ethernet shield. These pins cannot be used for general i/o.
8 or 9 servos with the ethernet board plugged in.
The
amount of servos you may control with an Arduino depends on the number
of PWM pins(the pins with a little tidle on it). Arduino Uno R3 has 6
PWM pins.
The
second factor is the amount of output current. The output current from a
5v pin is 600mA max above which you have a chance of blowing something
up. You may power your servos from an external power supply for a safer
use.