INTRODUCTION Our Smart Station hardware consists of a PIC32MX250 microcontroller with a 3.5mm jack for speakers, a TFT display, keypad, NeoPixel LED ring, microphone, and a host of I2C environmental sensor breakouts: i.e. accelerometer, temperature, humidity, and luminosity sensor breakouts. All of the electronics are neatly contained within a 3D printed casing. Our Smart Station …
Introduction We built a miniature recording studio using the PIC32 that allows the user to record a short soundtrack, play it back, then layer on additional sounds. We chose to support sounds for three tonal instruments: piano, guitar, and bass, as well as eight unique drum sounds. The user can play a full octave on …
The fastest finger press quiz buzzer is very popular in school, Collage, different T.V. show, different quiz competition. Here in my pic microcontroller based fastest finger press quiz buzzer project you will find four tables with push button. For any instant if four teams on four tables press the push button then it will glow …
PIC microcontroller based fastest finger press quiz buzzer project Read More »
Overview A Pulse Width Modulation (PWM) output from a PIC microcontroller can be used to play tones on a piezo speaker. With this, musical scales and simple songs can be played on the piezo speaker. Piezoelectric speakers operate by the converse piezoelectric effect: when a voltage is applied across the terminals, the piezoelectric material in …
Driving a piezo speaker with a PIC using pic-microcontroller, Read More »
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 PC’s sound card, MP3 player and so on. SSD1928 Module Schematic diagram The reference voltage of ADC is set to 1V with potentiometer connected to Vref+ pin of PIC32. …
Audio spectrum analyzer on PIC32 using pic microcontoller Read More »
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 Transformation (FFT) routine coded entirely in C. The output from the FFT is displayed using a 128×64 graphical LCD to allow a real-time view of an audio signal. …
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 cycles, but the sum of the ON time and OFF time remains same for the entire cycles. …
How to Generate Sound using PWM with PIC Microcontroller Read More »
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 over 100 gigabytes (once they exist) including microdrives. (right now they are about 8 gig) It uses …
The Super-Simple pocket size mp3 player using PIC16LF877A Read More »
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 circuit. Programmable, in the sense that user can train the words (or vocal utterances) he needs the circuit to recognize. This board allows …
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 potentiometer is used at the input side of LM386 to provide a volume control in the output speaker. The potentiometer does not control the gain of the …
LM386 based stereo audio amplifier with digital volume control using PIC18F2550 Read More »
