Reaction time game with a stop light, a sportsman tree and a pro tree.

Test your reaction time against the drag racing lights (Christmas tree lights).

Use the accelerometer to start, calibrate it, use a 5 second delay, and combine with location to have a simulated drag strip! Keep in mind GPS updates at 1hz so this is just for fun, not an accurate timing device.

Use as a simple start light when racing RC cars or slot racing (starts with a delay allowing us to set up our controllers).

Includes the option to set a vehicle reaction time, allowing a start on 3rd amber instead of reacting to green.

Select one of the following start modes:

- Stoplight - Green light comes on at a random time. Does not use vehicle reaction time.

- Sportsman tree - ambers light up sequentially 0.5 seconds apart, followed by the green light

- Pro tree - all ambers light up at the same time, followed by the green light after 0.4 seconds