What are the Capacitors and Resistors for?

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MacBean
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What are the Capacitors and Resistors for?

Post by MacBean » Mon Jun 06, 2016 6:44 am

Hey everyone!
I just finished guide 4 and have been poking around the forums trying to get a better idea of what is still left to do other then wiring the cartridge / cartridge reader up. I know, I know... I should just be patient and wait for the next guide. :lol: Anyway, I found a couple of wiring diagrams and was surprised to see how close to the end we already are after finishing guide 4. I might even try to finish on my own. One thing I can't seem to find anywhere on the forums however is where we need these capacitors and resistors. Does anyone know what we will be using them for and how?
Thanks!

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Ganreizu
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Re: What are the Capacitors and Resistors for?

Post by Ganreizu » Mon Jun 06, 2016 7:05 am

They're for an audio buffer board that you make when trying to get PWM audio out of the zero through the GPIO. They're not used if you do USB audio though.

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wermy
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Re: What are the Capacitors and Resistors for?

Post by wermy » Wed Jun 08, 2016 7:13 am

It's a low-pass filter for the PWM audio signal. Pretty good explanation of everything here if you're bored: https://learn.adafruit.com/adding-basic ... o?view=all :)
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