Adafruit RP2040 Prop-Maker Feather with I2S Audio Amplifier

The Adafruit RP2040 Prop-Maker Feather is an all-in-one board designed for building props, cosplay pieces, lightsabers, animatronics, and interactive toys. It combines the RP2040 microcontroller with a prop-making toolkit — I2S audio amplifier, NeoPixel driver with level shifting, accelerometer, and servo header — with screw terminal connections for minimal or no soldering.

Powered by CircuitPython or Arduino, this board boots instantly and can drive LED strips, play sound effects through a speaker, detect motion and taps, and control a servo — everything you need for an interactive prop in one compact Feather.

Key Features

• RP2040 Processor – Dual-core Cortex M0+ at 133 MHz with 264 KB RAM and 8 MB QSPI flash
• MAX98357 I2S Audio Amplifier – 3 W Class D amplifier for driving 4–8 Ω speakers via screw terminals
• NeoPixel Port with Level Shifter – 5 V level-shifted output on screw terminals with power cut-off transistor for low-power sleep
• LIS3DH Triple-Axis Accelerometer – Motion, tilt, and tap detection for interactive responses
• Servo Header – Standard 3-pin 0.1" header for hobby servos
• Extra Button/Output Pin – Additional screw terminal for activation button or digital output
• Low Power Mode – Pin-controlled power cut to NeoPixels and amplifier for sleep/standby
• STEMMA QT Connector – Plug-and-play I2C for additional sensors and peripherals
• USB Type C – For programming, serial debugging, and power
• LiPo Battery Support – Built-in 200 mA+ charger with automatic USB/battery switching

Also Consider

• Feather RP2040 – Standard RP2040 Feather without prop-making hardware

Ideal For

• Lightsabers and illuminated swords with motion-reactive sound
• Cosplay props with lights, sound, and motion detection
• Animatronics with servo control and audio
• Interactive toys and wearable electronics

Package Contents

• 1× Adafruit RP2040 Prop-Maker Feather (assembled and tested)
• 1× Header strip (soldering required for breadboard use)