Inventor HAT Mini

A compact motor, servo, and audio driver HAT for Raspberry Pi, perfect for building robots, props, kinetic sculptures, and mechanical creations. Drive motors with encoders, control up to four servos, and add sound effects through the built-in amplifier.

Features 8 addressable RGB LEDs for visual feedback, four ADC-capable GPIO pins for sensors, and a Qw/ST connector for easy breakout expansion. Comes fully assembled with pre-soldered headers and a Python library with examples.

Key Features

• Dual H-Bridge Motor Driver – DRV8833 with JST-SH connectors for encoder motors
• 4× Servo Headers – Connect standard 3-pin hobby servos
• I2S Audio Amplifier – MAX98357 3.2W mono amp with speaker connector
• 8× RGB LEDs – Addressable NeoPixels for status indicators
• 4× ADC GPIO Pins – Connect analog sensors, buttons, or LEDs
• Qw/ST Connector – Easy attachment of Qwiic/STEMMA QT breakouts
• Pass-Through Header – Stack with other HATs
• User Button – Built-in for interaction
• Fully Assembled – No soldering required

Ideal For

• Raspberry Pi robots
• Animatronics and props
• Kinetic sculptures
• Educational STEM projects
• IoT devices with motors

Specifications

• Microcontroller: Nuvoton MS51TC0AE (16-bit PWM, 12-bit ADC)
• Motor Driver: DRV8833 dual H-bridge
• Audio: MAX98357 I2S 3.2W mono amplifier
• Servo Outputs: 4× 3-pin headers
• GPIO: 4× ADC-capable pins
• LEDs: 8× addressable RGB (NeoPixel)
• External Power: Up to 10V via screw terminal (unpopulated)
• Dimensions: 65 × 30.5 × 15.5mm
• Compatibility: All 40-pin Raspberry Pi models

Package Contents

• 1× Inventor HAT Mini (fully assembled)