Content for Relay

Relay

A relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. The switch may have any number of contacts in multiple contact forms, such as make contacts, break contacts, or combinations thereof.

Project  Heat-o-matic

Heat-o-matic

“A proportional integral derivative (PID) controller that will be used to run a home-made precision heater. PID is a fancy way of saying that the code plays a game of ‘Warmer’, ‘Colder’ to get something to a particular value (in …

Low-Cost DC Motor Direction Controller with Fast Brake using 2 Relays

“The project presented here is a low-cost easy to use DC brushed motor direction controller with fast-brake, the project was built using two 12V Relays, 2 x BJT transistors, and 2 x tactile switches. The two LEDs are provided to …

Supplino - DIY PSU

“A simple PSU made with breakout boards and having a cool graphical display Supplino is a Quick & Dirty PSU (Power Supply Unit) made with some widely available breakout boards, an Arduino Nano (or an Arduino Nano Every) and a graphical …

ESP01 Project Using Blynk IFTTT & Google Assistant

“Make an ESP01 Project using Blynk IFTTT to control a 2-channel relay module with the Google Assistant. (Circuit + Source Code) In this IoT project, I have shown how to make an ESP01 Project using Blynk IFTTT to control a 2-channel …

Motion Sensor Lights

“Convert simple light to motion sensor light Now you might be wondering about the working of these lights, well the key component of these lights is “Passive Infrared Sensor”, abbreviated as PIR senor. Upon which Motion sensing lights work. Our …

Automated Hydroponic System

“An automated system for growing plants in a hydroponic set up. Reduce water usage by automatically recycling and amending your water. Hydroponics is the practice of growing plants in water instead of soil. I have long wanted to build a …

LoRa Project With ESP8266 Arduino Control Relay

“In this Lora project, I have shown how to make the LoRa Arduino ESP8266 control relay using the RYLR896 LoRa module with real-time feedback. Required component for this Transmitter circuit: - REYAX RYLR896 Lora Module - Arduino Nano - 220-ohm Resistor - 4.7k …

Making an old Air Purifier smart

“adding the Phillips AC4014 to a Home Assistant network The Phillips AC4014 is certainly not the newest model of an air purifier, but I have some of them and they still work perfectly fine. Filters are readily available, so I …

CO2 levels monitoring and Airflow control using Wio Terminal

“This device monitors CO2 level in the living or bedroom and controls a ventilation fan to improve airflow. Carbon dioxide (CO2) is the fourth most abundant gas in the earth’s atmosphere. CO2 is a byproduct of normal cell function …

Smart Extension Board

“Arduino based Smart Bluetooth Controlled Extension Board A home automation system typically connects controlled devices to a central smart home hub. The user interface for control of the system uses a mobile phone application. Bluetooth Controlled Electronic Home Appliances is …