Items

• Raspberry 2 (or 3)
• Adafruit I2S 3W Stereo Speaker Bonnet for Raspberry
• I2S Mic SPH0645 (x2)
• 16-Channel 12-bit PWM/Servo Driver - I2C interface - PCA9685 - Basic Address = 0x40 (no connection)
• 2 speakers
• Raspberry Camera
• ADC+PGA (I2C) ADS1115 - Basic Address = 0x48 (ADR to GND)

Raspberry Pin Connections

Power Supply

• 01 N/A : +3,3 V
• 02 N/A : +5 V
• 04 N/A : +5 V
• 06 N/A : GND
• 09 N/A : GND

I2S

• 12 GPIO 18: BCLK BitClock
• 35 GPIO 19: LRCK Left/Right Clock
• 38 GPIO 20: DIN (Mic DOUT)
• 40 GPIO 21: DOUT (Speaker DIN)

I2C Interface (SERVO)

• 03 GPIO 02: SDA1
• 05 GPIO 03: SCL1