Instructions.txt

# Parts List
1. Adafruit I2S MEMS Microphone Breakout - SPH0645LM4H - 2Nos - https://www.adafruit.com/product/3421
2. Adafruit I2S 3W Class D Amplifier Breakout - MAX98357A - 1No - https://www.adafruit.com/product/3006
3. Adafruit Perma-Proto HAT for Pi Mini Kit - With EEPROM - 1No - https://www.adafruit.com/product/2314

# Following steps to be completed on the Pi.

#Clone the project onto the pi
git clone https://github.com/shivasiddharth/custom-voice-hat

1. Turn on i2s support in /boot/config.txt with:
sudo nano /boot/config.txt

****Uncomment the following****
#dtparam=i2s=on
#dtparam=i2c_arm=on
#dtparam=spi=on
#dtparam=audio=on

****Add the following new entry****
dtparam=i2c_vc=on

Save Exit and Reboot.

2. Check for the Hats folder:
cd /proc/device-tree/

3. Open a new terminal and change directory to eepromutils:
cd /home/pi/custom-voice-hat/eepromutils

4. Make the EEPROM flasher executable and Flash the EEPROM with the eeprom file:
sudo chmod +x ./eepflash.sh
sudo ./eepflash.sh -w -f=voicehat.eep -t=24c32

5. Update raspberry pi kernels:
sudo apt-get update
sudo apt-get install raspberrypi-kernel

6. Reboot
sudo reboot

7. Check if your HAT is recognized,:
cd /proc/device-tree/

***YOU WILL HAVE A HAT FOLDER NOW WITH VOICE HAT DETAILS***

# Shutdown and Wire the Parts as indicated in the attached wiring diagram
***CAUTION- Amplifier board should be powered using 5V and the Mics using 3.3v***

# Start your Pi and move into the audio configuration scripts:
cd /home/pi/custom-voice-hat/audio-config/scripts/

#Make the scripts executable:
sudo chmod +x ./custom-voice-hat.sh
sudo chmod +x ./install-i2s.sh

#Run the Executable scripts
sudo ./custom-voice-hat.sh
sudo ./install-i2s.sh

****RUN THE custom-voice-hat.sh script untill you get .bak notification****
****REBOOT and Enjoy your HAT****