Wi-Fi Audio Streamer, ATxmega256

This wireless receiver can be used to receive and play audio transmitted over an 802.11 Wi-Fi network. The project is built based on Atmel ATxmega256A3U microcontroller and a RN-XV Wifly module made by Roving Networks.

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dsPIC MiniTron Amplifier

The MiniTron is a high end vacuum tube stereo amplifier with efficiency, distortion, and power output enhancements provided by some unique circuitry featuring a dsPIC30F2023 controller IC. The dsPIC is used in this project to create a tracking buck converter whose output voltage tracks the audio signal. The unique SMPS resources in these IC’s do most of the "hard stuff" usually required in an SMPS design, leaving ample processing power available for other activities.

These IC’s and the Avago galvanic isolators are truly the "enabling technology" for this project. The controller IC is also used to perform system health checks, and set the operating points of the individual vacuum tubes. This allows total system programmability, offering several possible preset operating modes.

© George Anderson

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Project Documentation

tag : Tube Stereo Amplifier, Audio, dsPIC projec

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PICTalker - Low Cost PIC Speech Synthesizer

PICTalker is a low cost allophone-based system for synthesis speech. The system use PIC16F628 microcontroller as main processor. You need a PIC development system and programmer, and Microsoft QBasic to program the microcontroller and EEPROMs to build this poject.

Speech quality is somewhat inferior to that from an SPO256 system. Most people immediately understand most or all of the speech it produces provided sufficient care is taken when constructing words from the component allophones. The speech is significantly easier to understand if the loudspeaker used has poor base response.

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Documentation and source code

tag : low cost speech synthesizer, PIC project (src)

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MC9S08GT60 MCU Musical Gloves

The wearable Musical Gloves enable you to play various forms of music on virtually any surface. This exciting wireless system is built around an MC13192 SARD board’s MC9S08GT60 MCU, MC13192 transceiver, and MMA6261Q (x- and y-axis) and MMA1260D (z-axis) accelerometers. The gloves are instrumented with fingertip switches and the three axis accelerometers. The system tracks finger presses, which start and stop notes, and hand motion, which determines the loudness and octave of each note. The Musical Gloves are connected via a wireless RF connection to a host PC, which processes the finger presses and accelerometer readings in order to control the musical output. This project created and build by Steve Kranish.

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Project, Abstract

Tags : Virtul Music Instrument, MC9S08GT60 MCU, Microcontroller Project

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MC9S08GT60 Virtual Interactive Boxing

The creative Virtual Interactive Boxing system makes shadow boxing more interesting by providing a virtual opponent with whom to spar. Designed around an MC9S08GT60 microcontroller and an MC13192 RF transmitter, the system monitors the user’s performance. Enhancements include digitized audio and speech that provide motivational cues and feedback about the user’s performance to help him improve his technique.

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Tags : MC9S08GT60 microcontroller, MC13192 RF transmitter, Microcontroller Project

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