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BirdNet-goMikrofon/Arduino-audio-tools-main/arduino-audio-tools-main/examples/examples-stream/streams-generator-pwm/README.md
Jannis 2316edfd4b Done
2026-09-26 01:20:55 +02:00

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PWM Output Test

This is a simple basic test for the PWM output.

We just send a generated sine wave to some defined pins and expect to hear some audio signal.

Output Device: Piezo Electric Element

To test the output I am using a piezo electric element

DAC

You can also use some simple earphones

DAC

It should also be possible to connect a headphone to the output pins...

The pins depend on the Processor:

PIEZO ESP32 RPI Pico MBED UNO R4
+ GPIO4/GPIO5 GPIO2/GPIO3 GPIO2/GPIO3 GPIO2/GPIO4
- GND GND GND GND