The tool that Felini will replace in this log update is an RC ESC/Servo tester. Servos require a pulse frequency of 50Hz, with active-high time ranging from 0.5ms to 2.5ms.

If you don't want or don't have a blue-colored Servo tester like the one in the picture, you will need to invest some time in coding and generating PWM pulses... just to set the rotation angle or check if the servo is actually functioning. This is unnecessary when you have Felini.