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Compact Audio Spectrum Analyzer [Project]
posted June 12 2014 12:46.23 by spic0m




7 band compact audio sprectrum analyzer based on msgeq7 and msp430 mcu.

Features:
msp430 value line 20 pin w/ adc10 can be used, I used msp430g2452
Direct drive 7 x 12 led array w/ multiplexing row and columns and polarity
Compensation for 'noise floor' of circuit built via a pre-fixed table array
Logarithm mapping of adc values to volume unit dot levels
Choice of one-dot, two-dot and bar type of display (decide at build time)
Peak dot indicator avaliable (decide at build time)


[Link: simpleavr]
 
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