Mia Larkin | Electronics

Audio Equalizer

An audio equalizer with three different bandpass filters. Each band had an adjustable gain that created a noticable output difference when changed. Music was played through the design and the indiviual bands adjusted treble, midrange, and bass, of the music. The design was a group project, however, I designed the full circuit and ran all the simulations using PSpice.

A full design paper for the project can be downloaded below. It includes multiple sections: An abstract, introduction, theory, design, procedures, results and discussion, and conclusion.

POSTNET to XS3

A bit converter that converts POSTNET, postal code, to XS3 code. Created with 22 non-valid input codes as only accounts for decimal 0 to decimal 9. A 5 variable K-Map was used to minimize the equation. LEDs light up to create binary half-byte where a lit LED signifies 1 and 0 otherwise.

Logicworks was used to test minimized equations before hardware implmentation. The Logicworks file can be downloaded below. It includes clear and colored wiring as well as text labels for ease of design comprehension.