Fig.1 - Front view of the light controller Good Italian people, every year for Christmas renew the crib tradition.
Kids are very fond of it and adults vie to produce works of art.
Works of art stand out if they are equipped with lights and sounds and, about crib, with special effects to look it realistic as much as possible. All started the past november, at my children school. They asked me to prepare some light effects for the crib, knowing that I am vey fond of Electronics. Safety isolation between the low voltage circuits and the mains voltage. The light controller generated a complete sequence of day-night with light fading.