LM3915 VU Meter Circuit Diagram
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LM3915 Based LED VU Meter Circuit Diagram And Working

Creating an LED VU meter using the LM3915 involves designing a circuit that converts audio signals into visual LED bar displays. The LM3915 is an IC that drives 10 LEDs in a logarithmic scale, making it suitable for audio level meters. A VU meter, or Volume Unit meter, is an audio visualizer that uses a […]

BLDC Motor Driver Circuit
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Brushless DC – BLDC Motor Driver Circuit using 555 Timer IC

This article describes a sensor-less BLDC motor driver circuit using 555 timer and DRV10866 motor driver IC, suitable for driving small 5V BLDC fans without position sensors. The rise in the use of brushless DC motors (BLDCs) is driven by their efficiency, durability, and precision. However, controlling these motors typically requires rotor position information to […]

Modbus with MAX485 and ESP32
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MAX485 TTL to RS485 Modbus Module Interfacing with ESP32

The MAX485 TTL to RS485 Modus Module is a popular RS-485/RS-422 transceiver chip manufactured by Maxim Integrated. It’s commonly used in applications where long-distance serial communication is required, such as industrial control systems, building automation, and instrumentation. MAX485 Modbus Module: A MAX485 module typically includes the MAX485 chip along with necessary support components like voltage […]

IR Remote Control by Arduino
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Control Home Appliances by IR Remote with Arduino

Controlling home appliances using an Arduino and an IR remote is a popular DIY project that’s relatively straightforward. An infrared (IR) remote control is a device that transmits signals to control electronic devices such as TVs, DVD players, and air conditioners. Working of IR Remote Control: Here’s a basic overview of how it works. Transmitter: […]

BME280 Based Altimeter By ESP32
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Altimeter and Environment Sensor Using BME280 and ESP32

Creating an altimeter project using the BME280 sensor and an ESP32 microcontroller can be a fun and educational project. The BME280 is a sensor that measures temperature, pressure, and humidity, making it perfect for altitude measurement. Here’s how you can build it: Components Needed: ESP32 development board BME280 sensor module Breadboard and jumper wires OLED […]

RC Phase Shift Oscillator Circuit
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RC Phase Shift Oscillator Circuit Working & Applications

An RC Phase Shift Oscillator Circuit is a type of electronic oscillator that generates sinusoidal signals. It is typically consisting of an amplifier (usually an operational amplifier), resistors, and capacitors arranged in a feedback network. The phase shift network created by the resistors and capacitors causes the output signal of the amplifier to be fed […]