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LED-Guided Piano Instruction using pic microcontoller
[Kay Choe] can’t play the piano. Rather, he couldn’t, until he converted his keyboard to include LED-guided instruction. [Kay] is a microbial engineering graduate student, and the last thing a grad...
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One-chip sound player.
The purpose of this project was to create a sound player that can play high quality sound using nothing but a single chip (plus an SD card for data storage). The chosen microcontroller was the...
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NJM2035 – HI-FI Stereo Encoder / Multiplexer using pic microcontoller
Part’s List: 2x 47K 1x 10K 1x 82K 1x 50K POT 1x 33uF 1x 10uF 3x 100nF (104) 1x 100pF (101) 1x 10pF (10) 1x NJM2035 IC 1x 38 KHz Crystal Technical Specifications: Voltage Supply: 1.2V – 3.6V MAX...
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Project Ryu Lagger Guitar Pedal Take 3 using pic microcontoller
It has been a quiet period but a very busy period, very active and very fruitful. I will be launching the projectryu.com site soon with tons of free resources for the audio hobbyist. Getting back to...
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Music player built on microcontroller AT91SAM7S256 with ARM core
1. The player allows: playback wav files in stereo format, 22,500Hz freqfency, and 8 bits of resolution, display the song titles, display time of songs, the possibility of stopping (pause) and switch...
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Audio spectrum analyzer on PIC32 using pic microcontoller
This simple audio spectrum analyzer is based on PIC32 proto board on PIC32MX360F512L with 320×240px colour LCD (LVC75Z779 Eval Board). The analyzer can be connected to unamplified audio source like...
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PIC16C63 Midi controlled Light dimmer
This is Ver2.0 of a finished project. I usually do projects about the same way every time. Product definition (10 min), Code outline (10 min), Schematic generation, Build prototype, Write code all at...
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Record+play fast 1bit sound on a PIC!
BTc “Binary Time constant” algorithm. A system to record and/or play sound in a bitstream format using just one digital output pin. This is a sound playback system for a PIC or any other...
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Project Ryu Lagger – Guitar Effect
Do you remember BOSS Slow Gear pedal? If your a guitarist you most likely do or at least you’ve heard of it. It was a great pedal sold from 1979 to 1982 and it was made in Japan. The pedal would cut...
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Audio spectrum analyzer using PIC18F4550
Introduction This project implements a real-time audio spectrum analyser using a PIC18F4550 8-bit microcontroller. The spectrum frequency analysis is performed by a highly optimised 16-bit Fast Fourier...
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Echo MP3 player using PIC18LF452
The EchoMp3 is a small DIY* MP3 player. It’s cheap and of excellent quality. 64, 128, 256, 512MB and 1, 2, 4 GB MMC and SD(HC) cards used as storage. FAT (FAT16) and FAT32 supported.Low power operation...
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MIDI Chord Button Keyboard Using PIC18f4620 part 1
Every time I sit down to document one of my projects, I try to remember the occasions in the past when looking at the finished web page, I might say ‘Well, I won’t do that again!’, because despite how...
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MIDI Chord Button Keyboard Using PIC18F4620 part 2
How chords are formed Before discussing the processor board and software, it is worth mentioning how the chords are composed. I have provided the table below which shows the installed chords together...
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MIDI Chord Button Keyboard Using PIC18F4620 part 3
Connections The following table documents the connecting leads and molex pin-header numbers tying the various interfaces together.HeaderPin no.Signal/FunctionDirectionHeaderPin no.Signal/FunctionChord...
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Soundtrack using PIC16F688 Microcontroller
This project uses a microcontroller to drive a speaker and play one of two songs: Yakety Sax (the chase song from the Benny Hill Show) and Entrance of the Gladiators (the clown juggling unicycle song)....
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How to Generate Sound using PWM with PIC Microcontroller
Pulse Width Modulation (PWM) is a technique in which the width of a pulse is modulated keeping the time period of the wave constant. The ON time and OFF time can have any different values in the wave...
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The Super-Simple pocket size mp3 player using PIC16LF877A
It is based on the PIC 16LF877, with plenty of processor time to spare. There is a bare bones assembly version, and a new C version with more features and stability. It uses compact flash cards up to...
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Voice controlled wheelchair
The Project aims at controlling a wheelchair for handicaps by means of human voice. The speech recognition system is a useful way of implementation and is easy to use programmable speech recognition...
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LM386 based stereo audio amplifier with digital volume control using PIC18F2550
Due to its simplicity (requires minimum external components) and high availability, LM386 is very popular among hobbyists for use in low-voltage audio amplification applications. Most of the time a...
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Treslie – A 3-phase speaker system for Leslie emulation using PIC18F26K20
This post describes the design and construction of a 3-phase loudspeaker intended for Leslie Speaker emulation. The unit is intended to be driven by a 3-channel audio amplifier The Brute, which in turn...
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