26 lines
642 B
Markdown
26 lines
642 B
Markdown
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# I2S Analog Output Test
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This is a simple basic test for the ESP32 __analog output__ using I2S.
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We just send a generated sine wave and expect to hear a clean signal.
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Please note the log level should be set so that there is no disturbing output!
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### Output Device: Piezo Electric Element
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To test the output I am using a piezo electric element
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It should also be possible to connect a headphone to the output pins...
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On the ESP32 the output is on the Pins GPIO26 and GPIO27
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| PIEZO | ESP32
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| --------| ---------------
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| + | GPIO25 / GPIO26
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| - | GND
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