Anyway, got them, got the SERVO sketch and tried one.
External power added.
From what I gather: BROWN - Power, NEGATIVE.RED - Power, POSITIVE. (5 volts)YELLOW - Signal.
It uses pin 9 as the output.... So that is the second pin (from the right) on the second row (from the left) looking at the arduino with the USB to the LEFT. Correct?
(Strange, I am not getting notifications of replies.)
The external power supply is connected to the ..... external power connector of the arduino.
It might be the pulses should be in the range of0 to 1 or 2 ms.so,,repeating 50 to 100 times per second may be something like right.