Introduction In this project, we will be using an Arduino UNO to control a 5V SPDT relay module using an HC-SR501 IR Pyroelectric Infrared PIR Module Motion Sensor, and also post the status of the … Read more
Relay Circuits
Welcome to our comprehensive collection of relay circuits, designed to provide reliable switching and control solutions for a wide range of applications. Whether you’re an electronics hobbyist, DIY enthusiast, or professional engineer, our range of circuits offers versatile solutions for automation, power distribution, and control systems. Explore circuit designs for electromechanical relays, solid-state relays, and relay modules, equipped with features such as high current capacity, low power consumption, and reliable operation. Our detailed guides, tutorials, and circuit diagrams provide step-by-step instructions, troubleshooting tips, and creative ideas for incorporating relay circuits into your designs. Achieve precise control and automation in your projects with our curated selection of high-quality relay circuit.
Introduction An HC-SR04 ultrasonic sensor distance threshold dependent 5V SPDT relay using an Arduino UNO is a system that uses an ultrasonic sensor (HC-SR04) to measure the distance of an object in front of it … Read more
Ultrasonic Sensor with Relay – Arduino Tutorial
Introduction A LDR analog threshold controlled 5V SPDT Relay using an Arduino UNO microcontroller is a system that uses a Light Dependent Resistor (LDR) to sense the ambient light level and a Single Pole Double … Read more
Light Sensor Triggers Relay – Arduino Tutorial
Introduction A potentiometer analog threshold-controlled 5V SPDT relay module is a system that uses a potentiometer as an input device to control the state of a Single Pole Double Throw (SPDT) relay module. The potentiometer … Read more
Potentiometer Triggers Relay – Arduino Tutorial
Introduction A push button toggle SPDT (Single Pole Double Throw) relay module for controlling AC appliances is a design scheme that allows you to control high voltage or high current devices such as lights, motors, … Read more
Button Toggle Relay – Arduino Tutorial
Introduction A push button-controlled 5V SPDT relay using an Arduino Uno microcontroller is a system that uses a mechanical pushbutton to control the state of an SPDT relay, which is connected to the Arduino board. … Read more
Relay control with Button – Arduino Tutorial
Hey techies, have you ever imagined that you can control your home appliances remotely? In this tutorial, we are going to make “Home Automation using ESP8266 ESP01 Web Server & Relay Module” to control Home … Read more
Home Automation with ESP8266 Web Server & Relay Module
Dual Day and Night Switch is a sensor-based project that serves both day and night. IC NE555, an LDR and relay switch makes up the dual night and day switch circuit. Hardware Required S.no Component … Read more
Dual Day & Night Switch
The four-level temperature-controlled switch circuit distinguishes between different temperature levels. After that, the circuit switches ON/OFF the relays according to the temperature detected. The project involves the IC LM324 as its main component and also, … Read more
Switches Controlled with Four Temperatures
Introduction A toggle touch switch is also known as a tumbler switch. It is a category of electrical switches that are activated manually through a rocking mechanism, handle, or mechanical lever. In a few contexts, mainly in computing, the action … Read more
Toggle Touch Switch Circuit
In areas like the staircase or porch of your home, lighting is required only for a short period at night. We often forget to switch off these lights, which results in considerable wastage of electricity. … Read more
Auto Switch off Light Circuit
In this tutorial, we are going to make a “Variable Timer Relay” using Arduino. Timers are used in many applications in our day-to-day life. As some electronic or electrical appliances need a time-limited power supply, … Read more
Variable Timer Relay using Arduino
In this tutorial, we are going to make a “Time Delay Relay”. Time delay relays are simply controlled relays with a time delay function built in. They control an event by energizing the secondary circuit, … Read more
Time Delay Relay Circuit
Control is defined as an on-off switch when its function is to open or close an electrical circuit in a stable manner. If the closing or opening occurs in a non-stable or momentary manner, we are talking … Read more
One Touch ON-OFF Switch
Introduction LDR, a Light-dependent resistor, as the name implies resists light. Hence, resistance increases as the light intensity got increases. At dark, the circuit works. We can make many circuits using LDR. But, in this … Read more
LDR Switch Relay Circuit
Introduction In this tutorial, we are going to learn about the “Time Delay Relay.” Time delay relays are generally known to those who work with electricity. As you know, that device is used to regulate high … Read more