Adafruit MONSTER M4SK - Two Eyes are Better Than One!
The Adafruit MONSTER M4SK is a dual-display development board designed for creating animated electronic eyes for costumes, props, and interactive projects. Powered by a 120 MHz ATSAMD51 Cortex M4 processor, it drives two 240×240 pixel IPS TFT displays with smooth, real-time 3D eyeball animations — no Raspberry Pi required.
The two eyes are spaced at human pupil distance (~63 mm) and the nose section can be snapped apart and reconnected with a 9-pin JST SH cable (up to 100 mm), allowing you to position the eyes independently on masks, helmets, or props. Built-in audio output includes a Class D amplifier for small speakers and a stereo headphone jack for external amplification.
Key Features
- ATSAMD51G19 Cortex M4 – 120 MHz, 512 KB Flash, 192 KB RAM
- Two 240×240 IPS TFT Displays – Each on its own SPI bus for fast parallel rendering
- 8 MB QSPI Flash – For storing graphics and sound effects
- Separable Design – Snap apart and reconnect via JST SH cable for flexible eye placement
- LiPo Battery Charging – Built-in charge circuit for portable use
- Audio Output – Mono Class D amp (1 W into 8 Ω) plus stereo headphone jack
- STEMMA Connectors – 1× 4-pin I2C (Grove compatible), 2× 3-pin analog/digital/PWM
- PDM Microphone Port – 4-pin JST SH for optional microphone input
- Built-In Sensors – Light sensor, capacitive touch pad (nose), 3 tactile buttons
- On/Off Switch – Plus reset button and display backlight controls
Ideal For
- Halloween costumes and cosplay masks
- Animatronic props and puppets
- Interactive art installations
- Creepy or whimsical eye displays on robots and gadgets
Package Contents
- 1× Adafruit MONSTER M4SK (with two IPS TFT displays)
The Adafruit MONSTER M4SK - Two Eyes are Better Than One! appears in the following collections:
