A simple spectrum analyzer using dsPIC30F4011

This is a project for viewing the frequency spectrum of input signal using dsPIC. The hardware uses the following: - 1. dsPIC30F4011. 2. Opamp (any one, like LM358, TL084). 3. Power supply. Software includes the following: - 1. FFT library code from Microchip 2. Graphic LCD driver code (for line, pixel plot etc). Graphic LCD showing spectrum of a square wave: - Description of hardware: - The dsPIC runs on t ...

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How to set up your B&W Zeppelin Air

With the B&W Zeppelin Air being such a popular iPod docking station as well as a fantastic AirPlay compatible device we thought it would be a good idea to write a ‘how to’ on setting up your new Zeppelin Air. As of September 2012 newer machines are installed with a slightly newer firmware version. The main reason for this is to make the Zeppelin Air easier to setup for AirPlay. The main benefit being yo ...

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eDrum – Trigger MIDI Converter using PIC16F877

Introduction This page is about electronic drums. Here you will find detailed information on how to build an electronic Trigger to MIDI Converter module, based on PIC Microcontroller, and how to build the triggers. This project has been developed for many years now, and it is constantly improving. You can expect professional results form your eDrum module. Let's start with the... Design description eDrum de ...

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Alchemist Forseti APD15A RC Integrated amplifier

We recently had a customer present this faulty Alchemist Forseti integrated amp for repair – I’d guess this dates from the 1990’s and has been well looked after. It’s a bit of a bruiser as you can see from the extensive heatsinking! Unfortunately it developed a DC fault on the loudspeaker outputs and destroyed the customers speakers, so it’s now in the naughty corner awaiting surgery. Access to the internal ...

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MIDI-Controlled Analog Music Synthesizer

For my electrical engineering senior design project, I decided on designing a analog music synthesizer with MIDI control. I have to admit, this was what I wanted to do since high school and was my ultimate goal as a musician, artist, DIY person, and engineer. This project, in the end, will combine all of my knowledge into one nice little package that I get to show off to friends, family, and faculty and is ...

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MIDI-Controlled Analog Music Synthesizer

For my electrical engineering senior design project, I decided on designing a analog music synthesizer with MIDI control. I have to admit, this was what I wanted to do since high school and was my ultimate goal as a musician, artist, DIY person, and engineer. This project, in the end, will combine all of my knowledge into one nice little package that I get to show off to friends, family, and faculty and is ...

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Echo Mp3 DIY Audio player using PIC18F46K20

The EchoMp3 is a small DIY* Audio player. Mp3, Wav, Ogg-Vorbis, Wma and Mid formats are supported. 4, 8, 16 GB SDHC cards used as storage. FAT (FAT16) and FAT32 supported. Low power operation with two AA (HR6) 1V2 Ni-Mh batteries. Power input range is +2.4V ... +3.0V Runs on a PIC18F46K20 at 64 MhZ. Up to 320 kBps bitrate CBR  and VBR at 44,1 kHz supported. ID3 v2.3 tags supported. Full user control (volume ...

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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 PIC12F1840. It was chosen because of its fast clock rate (up to 32 MHz). Since microchip PICs have this atrocious property of executing one instruction every four clock cycles, this results in 8MIPS performance. The s ...

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Circuit design and electronics using pic-microcontroller

I completed a 2-part assignment for this week. The first part was to build a sorta-random sound generator based on a schematic that Joe Paradiso made available. The second part was to build a circuit that could transmit MIDI messages - this will go towards my final project. Sound Generator Midi output Midi input Sound generator The description for this assignment is here. Electronics knowledge base from 200 ...

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Circuit design and electronics using pic-microcontroller

I completed a 2-part assignment for this week. The first part was to build a sorta-random sound generator based on a schematic that Joe Paradiso made available. The second part was to build a circuit that could transmit MIDI messages - this will go towards my final project. Sound Generator Midi output Midi input Sound generator The description for this assignment is here. Electronics knowledge base from 200 ...

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