Mike Hibbett
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Practical Electronics PicNMix May 2020 PCB - Audio Spectrum display
Using a dsPIC33 DSP processor, the circuit combines an electret microphone and a low cost 320 x 240 colour graphics LCD panel. Two buttons allow the trace to be held, and the span of the display to change between 500Hz and 20KHz.
There is over 64KB of code space remaining to allow further enhancements - all code if freely downloadable from the magazine's website.
A demonstration of the circuit can be seen here: https://youtu.be/mGIGxUU9w1k
Feb 26,2020
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Practical Electronics PicNMix May 2020 PCB - Audio Spectrum display
2 Layers PCB 43 x 77.5 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen
This is the PCB as covered in the Practical Electronics magazine PicNMix column by Mike Hibbett, issue May 2020.
2842
2
0
Published: Feb 26,2020
Download Gerber file 40
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- Nikita Viktorovich Kuzovkin Jan 18,2023
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