This device is designed to test for oral diadochokinesis. It measures the number of “pa,” “ta,” and “ka” pronunciations.
ESP-WROOM-32 Dev Module
MAX4466
1602 LCD with I2C adapter
2 LEDs and a limiting resistor of about 330 ohms (depending on the LEDs)
Push switch (reset button)
Power switch (as needed)
Turn on the power and pronounce into the microphone to start measurement automatically. The maximum number of utterances per second is also displayed.