Servos and ESCs are designed to accept input PPM signals from RC Transmitters and Receivers. This makes it difficult to control them without a RC Tx and Rx. Use this servo tester to control the position of your servo motor. The tester has a knob which can be turned and used to control upto 3 servo motors.
The servo motor position varies with the knob on this tester. You can also connect an ESC and to control a brushless/brushed motor and control it. This tester can control upto 3 servo motors.
It has 3 modes - Manual, Auto and Neutral.
In manual mode, the servo moves according to the knob on the tester.
In auto mode, the servo sweeps continuously from 0 to 180 and back.
In Neutral mode, the tester sends the servo to 90 degree.
It is useful for centering the servo motor before putting it in a RC plane, hexapod, biped, humanoid, etc.