Google announces the project called “Voice Kit”. This project extends the functionality of the most popular single board computer used for digital making — the Raspberry Pi. The included Voice Hardware Accessory on Top (HAT) contains hardware for audio capture and playback: easy-to-use connectors for the dual mic daughter board and speaker, GPIO pins to connect low-voltage components like micro-servos and sensors, and an optional barrel connector for dedicated power supply. It was designed and tested with the Raspberry Pi 3 Model B.