So you would like to do even more with your Pi? The BrainCraft HAT brings machine learning to your Raspberry Pi 4. It has a 240×240 TFT IPS display, 5-way joystick and button, left & right microphones, stereo headphone out, and 3 pin STEMMA connectors to drive NeoPixels or servos. It also has 3 x RGB DotStar LEDs to give you feedback.
The BrainCraft HAT lets you try all kinds of audio/video AI projects by adding more sensors.