28 lines
834 B
Markdown
28 lines
834 B
Markdown
# PWM Output Test
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This is a simple basic test for the PWM output.
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We just send a generated sine wave to some defined pins and expect to hear some audio signal.
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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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You can also use some simple earphones
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It should also be possible to connect a headphone to the output pins...
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The pins depend on the Processor:
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| PIEZO | ESP32 | RPI Pico | MBED | UNO R4 |
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| --------| -------------|---------------|--------------|-------------|
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| + | GPIO4/GPIO5 | GPIO2/GPIO3 | GPIO2/GPIO3 | GPIO2/GPIO4 |
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| - | GND | GND | GND | GND |
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