Nintendo has always been one for innovation in how people can play with its beloved franchises and during the Super Mario Bros 35th Anniversary presentation, they did not disappoint in this regard.

The following automatic battery-charger design is created with a circuit that could qualify as the simplest window comparator ever built around a single transistor (see the figure). It starts charging ...

One of the coolest things any sound system can have is some kind of musical visualization. Thumping level meters that pump with the volume are a great example, and were particularly popular in the ...