- Sat May 08, 2010 1:50 pm
#100456
When a servo is driven by a Pro Mini with the simple 180 degree sweep program example provided (// Sweep
// by BARRAGAN <http://barraganstudio.com>) it rotates only about 90 degrees.
When the same servo is driven by the Arduino Duemilanove using the identical program and setup, it rotates 180 degrees as "advertised".
The same thing happens if the write parameter for the servo is in microseconds instead of degrees.
This has been found for more than one Pro Mini.
It is as if the Pro Mini CANNOT supply the pulse widths necessary to get the full angular range the servo can give. This is a major shortcoming and makes the Pro Mini NOT equivalent to the other Arduino boards.
Is this a common problem that others have found? Is there a fix?
// by BARRAGAN <http://barraganstudio.com>) it rotates only about 90 degrees.
When the same servo is driven by the Arduino Duemilanove using the identical program and setup, it rotates 180 degrees as "advertised".
The same thing happens if the write parameter for the servo is in microseconds instead of degrees.
This has been found for more than one Pro Mini.
It is as if the Pro Mini CANNOT supply the pulse widths necessary to get the full angular range the servo can give. This is a major shortcoming and makes the Pro Mini NOT equivalent to the other Arduino boards.
Is this a common problem that others have found? Is there a fix?