I encounter a little problem playing with my arduino board. I am just trying to have one servo going in two positions. The servo is a Futaba s3151 (doc here: http://www.servocity.com/html/s3151_sport_ball_bearing.html) The Arduino Board is powered by USB, and the servo by a Laboratory Power Suply in 5V, 200mA max. Grounds are connected.
It is working perfectly fine in the mid range (30° to 160° aprox.), or (775ms pulse to 2177ms pulse) But outside this range, the servo is de-activated.
I switched to the Servo -> Sweep example to eliminate software problem. The servo is sweeping from 30° to 160°, the a littel pause de-activated, the sweeping from 160 to 30, the a littel pause de-activated .....
I change to a small 9g servo, and it is working fine the whole range.
Does anyone allready had a problem like this?