ReTimer

Imagine that you are starting a car in the F1 in Schools competition. When all the lights go out, a trigger press sets the car off down the track. The time between when your eye registers that the lights are out and your pressing the trigger is your reaction time.

The three LEDs on the front of the Kookaberry light up in turn until they are all on. When they all go out press Button B.

Champions have reaction times of less than 20 Msecs. If you can achieve less than 200Msecs you are doing well!

Directions

A pdf of these directions can be downloaded from the sidebar to the right

Setup

This app does not require any external peripherals – it uses only the buttons and the LED’s on the front of the Kookaberry.  Navigate to the ReTimer app on the Kookaberry’s menu and press Button B to run.

Running the app

What is showing on the first (Home) screen?

1. Top Row: Name of app; ID of Kookaberry (01)
2. Second Row: Your reaction time in milliseconds
3. Third & Fourth Rows: Instructions
4. Fifth Row: Date and time if connected to your PC
5. Sixth Row: Button A is Exit; Button B starts the LED sequence.

Using the app

After pressing Button B to start, the instruction on the screen changes as shown in the left-hand screenshot above, and the LED’s on the front start to turn on one at a time.

As soon as all the LED’s turn off, Press Button B and your reaction time (ie the delay between your brain registering the fact and your finger pressing the button) is displayed on the second row of the screen.