The following circuit diagram shows how to connect 5V relay module with ESP32-S3 to control a DC motor . Here is a complete breakdown of how your circuit is wired, how each component interacts, and how the MicroPython firmware controls everythi…
This is an electronics circuit note on how to control household appliances with Arduino and relay . A note on how to connect household appliance (like AC bulb, Soldering Iron, Workbench Power, AC motors etc.) using an Arduino Nano, a 5V relay module…
The following circuit diagram shows how you can connect household AC lights and appliances to your microcontroller ( ATmega328P , ATmega32 , PIC, ATC8051 etc) or prefabricated readymade microcontroller boards like Arduino ESP32, Raspberry Pi Pico 2…
I created a simulation circuit for a KF-301(or KY-019) to analyze how the circuit works before I build one. Such module is important circuit part when powering AC household electronics and controlling using microcontroller like Arduino or ESP32. Th…
Controlling the direction of a DC motor is a fundamental concept in robotics and automation. One of the simplest ways to achieve this is by using an H-Bridge circuit . While transistor-based H-bridges are common, using relays offers a straightforw…
Relays offer the benefit of utilizing durable copper contacts, enabling them to handle high current loads with a relatively low input current. However, since the solenoid in the relay takes some time to actuate the contact, using Pulse Width Modulat…
Here is the updated article with all URLs unified to the ee-diary.net domain and the HTML structure cleaned for your blog. Automatic light switches are a modern solution to energy-saving and convenience in homes and workplaces. This post explains h…
Here, we’ll dive into a practical relay-based circuit that allows you to control an AC-powered load (like a light bulb) using a low-power DC signal. This circuit is simple, cost-effective, and highly versatile for various home and industrial automa…
Controlling actuators such as motor using an Arduino can be a simple task with the right components. Using relay we can avoid any damage to the microcontroller, the actual and other electronics circuits component in the system. In this guide, we wil…
