If you’ve run out of I/O pins on a project and need a way to add user input you can find a slew of port expanders that work with various communications protocols like I2C and 1-Wire. But if y… ...

As usual, we have tried to keep the circuit as simple as possible even though stable. This circuit can be considered as a general purpose daisy-chained parallel shift-out register group for a total of ...

I’ve always appreciated simulation tools. Sure, there’s no substitute for actually building a circuit but it sure is handy if you can fix a lot of easy problems before you start solderi… ...

Arduino is famous for empowering DIY projects, but it’s one of a multitude of choices available these days for prototyping your IoT startup, or, like, text messaging you every time your cat sneezes.