Circuit Splash

Here is a simple audio amplifier circuit that is easy to build and has few components. This circuit is built around the LM386 (click for datasheet) audio amplifier integrated circuit, useful when you need to power medium sized speakers from a music player that can only drive earphones.

Elevate your music with the GPD2846A TF Card MP3 Decoder Board 2W Amplifier Module. This module features GPD2846A decoding and 2W output amplifier, delivering clear and powerful sound for superior music enjoyment. Ideal for audio applications and DIY projects.

555 time IC is very powerful and versatile IC, it can be used in many forms. In this tutorial we are going to see how a 555 IC can be used as Audio Amplifier. A low power audio signal can be amplified using 555 Timer IC.

Here in this project we are using Arduino and relay to trigger the Electric Door Lock and RFID to authenticate, so your RFID tag will act as a key. If you place wrong RFID card near RFID reader a buzzer will beep to alert about wrong card.

LM386 is a low voltage audio amplifier and frequently used in battery powered music devices like radios, guitars, toys etc. The gain range is 20 to 200, gain is internally set to 20 (without using external component) but can be increased to 200 by using resistor and capacitor between PIN 1 and 8, or just with a capacitor.

The TDA2030 IC is a powerful audio amplifier IC able to deliver up to 20W of output power, so you can use it to run a 4Ω speaker at 12W or a 8Ω speaker at 8W.

Dancing LED lights which dances to the tune of any music playing....

It is going to be the heart of any party and liven up your room and outdoors...

As simple as plugging the music from your favorite music player/ipod/stereo and the lights start blinking with the music...

i wanted to make cheap motion sensor lights that work from a standard 220V socket. This is the best that I could achieve, for now)

Learn how to connect a micro SD card module to Arduino step by step. This beginner-friendly guide covers wiring, SPI communication, code for reading and writing files, and practical data logging applications.