The table shows the pin configuration of the Arduino UNO–based robotic arm. The red (VCC) wires of all servos are connected ...

A small portable device featuring timer, clock, and calendar functions, equipped with a simple and functional interface and a truly long battery life.

If you wanted to build a robot that chased light, you might start thinking about Raspberry Pis, cameras, and off-the-shelf computer vision systems. However, it needn’t be so complex. [Ed] of ...

A converter that tapers off a 4 mA input to zero, and adds the input and the tapered off 4mA signal to create a 2-wire 4-20 mA output loop.

You’re seated at the restaurant, given a menu, and notice something missing: no prices. What’s going on? It’s sure to be an expensive place, but… Read More ...