Simple reaction time test.
This is an implementation of the visual simple reaction time test, which is a wide used psycho-physiological technique. A variant of the technique has been implemented, in which both phases of the reaction time can be determined, the latent time before the start of the movement and the time of the motor component.
Hold the button start till the square appears. Immediately afterwards, press the stop button.
The color of the square can be set differently, white, red, green or blue.
You can change the size if the square by swipe left and right at the level of the square.
The brightness of the square can also be changed.