The Adafruit 1.54" Tri-Colour eInk Display (152×152) brings electronic paper technology to your microcontroller projects. Featuring black, red, and white ink pixels, this breakout delivers high-contrast, daylight-readable visuals that persist even when power is completely disconnected — just like printed paper.

An onboard SRAM chip offloads the two-colour frame buffer (~5.7KB for black + red layers) from your microcontroller's memory, sharing the same SPI bus as the display with just one extra pin. Compose your image in SRAM and transfer it to the eInk panel when ready, keeping your microcontroller's RAM free for other tasks.

Key Features

• 152×152 Tri-Colour eInk – Black and red pixels on a white background
• Onboard SRAM – Offloads the ~5.7KB frame buffer so your microcontroller doesn't need spare RAM
• Ultra-Low Power – Image persists with no power; Enable pin lets you shut down SRAM, MicroSD, and display completely
• MicroSD Card Slot – Store images, text files, and other display content
• 3/5V Compatible – Onboard 3.3V regulator with logic-level safe inputs
• SPI Interface – Works with any microcontroller platform

Also Available

• 1.54" Tri-Colour eInk (200×200) – Higher resolution version
• 1.54" Monochrome eInk (200×200) – Faster refresh, black and white

Ideal For

• Low-power signage with colour highlights
• E-reader and digital label projects
• Battery-powered status indicators and dashboards
• Name badges, shelf tags, and price displays

Package Contents

• 1× Adafruit 1.54" Tri-Colour eInk display breakout with SRAM
• 1× Header strip

Specifications

• Display Size – 1.54" diagonal
• Resolution – 152×152 pixels
• Colours – Tri-colour (black, red, white)
• Interface – SPI
• Logic Level – 3.3V or 5V