The power for the relay card and the Arduino Pro MINI is derived by a POE 802.3af ethernet switch. A Texas Instruments TPS2375 chip is used to negotiate the power class (there are a couple of classes ...

Here, we are using a 4 relay module because we will only control four appliances. If you want to automate a different number of appliances, you can use a different relay module.

An Arduino project for turning on/off a relay at a scheduled time. The project uses the Adafruit Feather and a real-time clock to ensure accuracy. This project is essentially a hand-made version of ...

A single-channel relay is an electronic switch that can be controlled by a low-power electrical signal, such as the output from an Arduino microcontroller. By using an Arduino Uno and a single-channel ...

If you would like to build your very own benchtop power supply you might be interested in a DIY tutorial for Supplino. A versatile compact Arduino power supply capable of providing from 4 to 40 ...

Created by an engineer named Marco Riedesser, the board has CE-rated relays and controls that can handle heavy voltages as well as connect to standard Arduino shields.

Arduino has recently announced two new expansions to their Arduino Pro Opta PLC series – the Arduino Pro Opta Ext D1608E and Arduino Pro Opta Ext D1608S, the main difference between the two is that ...

Relay protection and emergency automation systems serve as automatic safeguards against damage and abnormal operating conditions in electrical components of power grids. They constitute a critical ...

This paper illustrates the design and implementation of a differential protection relay for protecting transformers in power distribution systems. Transformers are a key component of the electric ...