【software configuration】

sudo nano /boot/config.txt
add to
dtoverlay=audremap,pins_18_19
Save, exit, restart
sudo reboot
After rebooting , You need enable local audio
sudo raspi-config
Select System Options -> Audio -> 'headphone'

Then reboot again use
sudo reboot
Set audio voice max and play any music then you will hear sound

【Device Connection Diagram】

Connect Raspberry Pi Zero 2W (speaker output mode)

Connect to Raspberry Pi 4B (onboard speaker output mode)

External 8 Euro 5W Speaker Output Mode

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Raspberry Pi Audio Module (B) Tutorial

【software configuration】

【Device Connection Diagram】

Raspberry Pi GPIO audio amplification PWM sound card speaker Buzzer expansion board

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