Haiblogg

How often have you fallen asleep waiting for Granny to take her turn at Scrabble? (To be fair, most grannies are pretty smart, so it may be she who falls asleep waiting for you.) The brief for designing the Games Timer was to develop an electronic replacement for the sand timer which could provide timed intervals up to three minutes, a visible indication of how much time was left, an audible indication at the end of the timed period, and which could be instantly reset. The Games Timer solves all of these problems. 

The Games Timer is an extended project suitable as a GCSE Electronics Products or GCSE Electronics project. If you follow through the practical work, you will develop a good understanding of the process of developing an electronic circuit. The reasons for choosing particular components and subsytems are clearly explained.