This voltage is used to drive the transistor that will switch ON the relay and ... supply that drive the LOAD to the arduino and transistor circuitry! You can use this code example to introduce a ...

Integrated circuits, chipsets, memory modules, and all kinds of other transistor-based technology ... full-sized PCs from a few decades ago. The Arduino is no exception to this trend, either ...

Here is a simple general-purpose security alarm circuit built on the Arduino ... and hence the reed switch should be in “closed”state at standby mode. When reed switch is opened, pin 2 of Arduino goes ...

In theory, the hundreds of photons, controlled by the triggering photon, could fan out and switch off hundreds of other transistors in an optical circuit. With its exotic clouds of atoms and bulky ...