SparkFun’s latest tutorial shows you how to work with relays. A relay is an electrically operated switch. In this case, they’re using it to switch a 120V AC outlet. The article carries … ...

The past 29 years have seen a proliferation of relays on cars. From a DIY point of view this is good news. Not only is a good-quality relay a very reliable component, but its working is also easy ...

Working with the Azure client libraries, you can create containers for your service’s data, delivering a schema for the messages that your service will relay.