Circuits & Schematics - Audio - 6

IC1: MAX2606 L1: 390nH Voltage Supply: 3 - 5V Frequency: 88 - 108MHz A simple FM transmitter links your home-entertainment system to a portable radio that can be carried around the house and into the back yard. For example, you can play music on ...

Part 1 - Schematic In the mode Pin-to-Pin (mode 1) to perform a song you have to select the track number using binary inputs IN1, IN2, IN3, IN4, IN5 and IN6 and then run the selected file simply giving a ground pulse on the PLAY line. Applying ...

This embedded MP3 module is an universal and compact circuit for playing MP3 audio files. The MP3 module can be used in embedded systems. The MP3 files (up 65,536) are stored in a micro SDcard. Controlling the module could be done either by buttons ...

This is a precision 15V regulator on a single side PCB. The circuit is based on EB-802 with design by zerosoft on www.headphoneamp.co.kr . I have replaced some components that easy to find in the market and design a new PCB that look like symmetry ...

Rotary encoders are very versatile input devices for microcontroller projects, not only do they provide 360 degrees of rotational freedom they also allow digital positioning information to be gained without the use of analogue to digital converters ...

Part 1. Schematic Supported Sound Formats and Control Commands Supported sound file format is RIFF/WAVE in LPCM, 8/16bit, mono/stereo and 8kHz-48kHz. Any other sound files, such as ADPCM, MP3 and AAC, must be converted into the PCM. The sound files ...

This is a simple sound generator based on 8-pin SD Audio Player . It is built with an Atmel ATtiny861 microcontroller from Atmel and an SD memory card. The tiny861 has fast PWM outpus like tiny85 so that it can generate clear sound compared to any ...

Part 1. Schematic and construction The firmware is completely written in C and can be downloaded from the downloads section below. The firmware is split into 4 parts: ADC Sampling The ADC sampling routine samples the voltage level on RA0 every 50 ...

This project implements a real-time audio spectrum analyser using a PIC18F4550 8-bit microcontroller from Microchip . The spectrum frequency analysis is performed by a highly optimised 16-bit Fast Fourier Transformation (FFT) routine coded entirely ...

Paul Bishop Once again, I decided to put the old travel DVD player's screen to good use by using as an output device for the Arduino. Though the DVD mechanism is broken, the screen allows for standard NTSC composite video input. runs on an ...