We discussed laying out of circuits today when I introduced the bicycle lights project we will be working on for your final assessment.
One of the methods for laying out a circuit is to use a breadboard. These youtube videos are a good introduction to using breadboards in electronics. Watch the upper clip first as the lower clip is designed to follow on from this one. Post a comment if you have any questions and I will try to provide an answer.
Note: we have met the 555 timer chip from the 2nd clip in our computer simulation sessions – remember the blinking LED exercises?