Sound Moduleο
Audio Amplifier Moduleο
Description: The I2S audio amplifier module receives digital audio via the I2S interface and drives a speaker with up to 3.2W output. It supports 16βbit stereo or mono audio at sample rates from 8kHz to 96kHz.
Test Code: GitHub
Connection:
W55MH32 |
I2S Amplifier |
|---|---|
3V3 |
3.3V |
GND |
GND |
PB3 |
SCK |
PB5 |
DIN |
PA15 |
LRC |
Demo:
Passive Buzzerο
Description: The passive buzzer module generates tones of different frequencies using PWM (Pulse Width Modulation). Unlike an active buzzer which only produces a fixed frequency, a passive buzzer allows you to play melodies and varying tones by changing the PWM frequency.
Connection:
W55MH32 |
Passive Buzzer |
|---|---|
3V3 |
VCC |
GND |
GND |
PA0 (PWM) |
Signal |
Test Code: GitHub
Demo:
