Ghani Lawal- Got 3D models for all components
- Formatted and aligned all the sub-circuits in the PCB editor
- Found a PCB design fundamentals resource http://alternatezone.com/electronics/files/PCBDesignTutorialRevA.pdf and posted (at the time) current PCB with LED driver and 2 filters traced on Reddit for a design review
- PCB making is subtractive process, better to keep traces as thick as possible and keep a ground fill unless there is a reason to not have one
- Will have a ground pour on both the top and bottom layers
- Set grid to mils
- Power traces will be 50 mils, everything else will be 10 mils
- Don't be afraid to use vias
- rotate components to make tracing easier
- PCB making is subtractive process, better to keep traces as thick as possible and keep a ground fill unless there is a reason to not have one
- Added 7th LM324 Quad-op amp IC to filter arrays, now each spectrum filter will have their own op amp IC
- Will allow traces of different stages of the same spectrum filter to go to the same IC
- Will be easier to route and read in the PCB - more aesthetically pleasing
- Minimizes trace length
- Added 10uF polarized filter capacitor for the LEDs
- Traced 9V power, sub-bass and bass filter
- ***Will use JLCPCB to manufacture the PCB, even though the minimum order is 5 and along with at least 2 have to be assembled if that is what I choose to do, it is still the cheapest option by far
PCB Update
A project log for Music Spectrum and dB Visualizer
Receive input from a 3.5mm jack, divides the music into 7 frequency bands, shows the loudness of each frequency band in DB using LEDS.
Discussions
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