As the user start cycling the device will detect the speed by calculating the number of rotation per minute.
We have a custom made hardware device which will attach to the wheels of the cycle. The speed will be sent to the computer which makes the calculations and send the signals to hardware system to fill the beer or lighten up the logo.
Users need to peddle the cycle as the user speed increases the bottle start filling up. Else we can have company logo where as the cycles speed increases the logo start lighten up and the winner will get goodie