树莓派用GPIO做模拟音频输出，对于zero和CM3没有模拟音频的适用

树莓派音频

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树莓派用GPIO做模拟音频输出，对于zero和CM3没有模拟音频的适用

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Adding Basic Audio Ouput to Raspberry Pi Zero

Created by lady ada

Last updated on 2016-09-13 12:53:43 AM UTC

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Guide Contents
Guide Contents
Overview
How Audio Works on Other Pi Computers
Pi Zero PWM Audio
Let's go!
Option 1. Use Device Tree Overlay
Option 2. Manually Assigning PWM pins
Changing the GPIO ALTs
Low Pass Filter Wiring
Set Audio Output
First Test
Adjusting Volume
Automate it!
© Adafruit Industries
https://learn.adafruit.com/adding-basic-audio-ouput-to-raspberry-pi-
zero
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