736 B
736 B
Stream Analog input to Serial
We can read an analog signal from a microphone and and write it out to Serial so that we can check the result in the Arduino Serial Plotter. To test the functionality I am using a MCP6022 microphone module.
The MCP6022 is a anlog microphone which operates at 3.3 V We sample the sound signal with the help of the ESP32 I2S ADC input functionality.
Pins:
| MCP6022 | ESP32 |
|---|---|
| VCC | 3.3 |
| GND | GND |
| OUT | GPIO34 |
Serial Plotter
