Driving a 7.3-Inch Color E-Paper Display with Raspberry Pi Pico 2 W

The Inky Frame 7.3-inch is an e-paper display driven by the Pico 2 W (Raspberry Pi’s latest MCU RP2350), equipped with a 7.3-inch E Ink screen, a resolution of 800 x 480, and supports 7 colors. Other features include 5 buttons with LEDs, 2 Qwiic/STEMMA QT connectors, 1 microSD card slot, and a battery connector with power-saving functionality.

Driving a 7.3-Inch Color E-Paper Display with Raspberry Pi Pico 2 W

The Pico 2 W e-paper display is ideal for low-power applications such as home automation dashboards, sensor data visualization panels, and image display in low refresh scenarios. E Ink e-paper consumes power only when the screen refreshes, and images are retained during power loss (low power consumption), flexible mounting options, and the included metal legs make it suitable for various setups.

Github Link:

https://github.com/pimoroni/inky-frame

https://learn.pimoroni.com/article/getting-started-with-inky-frame

Hardware Schematic:

Driving a 7.3-Inch Color E-Paper Display with Raspberry Pi Pico 2 W

Specifications

  • Raspberry Pi Pico 2 W

    • RP2350, dual Arm Cortex M33, running at up to 150MHz, with 520KB SRAM

    • 4MB QSPI flash memory supporting XiP

    • Powered and programmed via USB micro-B

    • 2.4GHz wireless

  • 7.3-inch EPD display (800 x 480 pixels)

    • E Ink Gallery Palette® ePaper

    • ACeP (Advanced Color ePaper) 7 colors: black, white, red, green, blue, yellow, orange.

    • Ultra-wide viewing angle

    • Ultra-low power consumption

    • Dot pitch – 0.2 x 0.2mm

  • 5 tactile buttons with LED indicators

  • Two Qwiic/ST connectors for connecting breakout boards

  • microSD card slot *

  • 8MB PSRAM memory

  • Dedicated RTC chip for deep sleep/wake (PCF85063A)

  • Fully assembled

  • No soldering required.

  • Programmable using C/C++ or MicroPython

Driving a 7.3-Inch Color E-Paper Display with Raspberry Pi Pico 2 W

Driving a 7.3-Inch Color E-Paper Display with Raspberry Pi Pico 2 W

The multi-color EPD display relies on electrophoresis to move colored particles that reflect light, providing excellent visibility in bright conditions. These ePaper displays are very energy-efficient, consuming power only during refresh cycles while retaining images when powered off, making them ideal for battery-powered applications. Optimal performance can be achieved in ambient temperatures between 15°C and 35°C, as lower temperatures can reduce color vibrancy and display brightness.

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