Introduction Towards the end of the ’80s, when I started out in electronics, one day I decided to make a special alarm clock: one, that, when the time comes, switches on some device in my room – be it a radio, TV or anything else. At the time microcontrollers were …
Introduction In the eighties most TV sets did not have the sleep function that is standard on today’s TVs. My grandfather was known to fall asleep about 5 minutes into watching any program on TV in the evening. Then, the TV would go on all night long. Those TVs in …
Introduction This is an old school circuit – I made it (with the help of a friend) in 1987, when I first started out in digital electronics. At the time there were no PCs – or at least not for the average person in Hungary. So all the planning was done in …