7.5inch E-Paper Display Monochrome Expansion HAT 800x480

SKU: 402382

Model: 7.5inch E-paper Display

Brand: Seengreat

Category: IO Boards

$56.55

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7.5 Inch E-paper Display

800x480 resolution, black and white display, uses SPI communication, supports partial refresh

This product is a 7.5-inch black-and-white e-ink display expansion module with a screen resolution of 800x480. It uses SPI communication and supports both full and partial refresh modes. The driver board is designed based on the 40-pin interface of Raspberry Pi, making it suitable for Raspberry Pi series boards. We provide example programs in C and Python for Raspberry Pi. A pre-configured SPI control interface is reserved for easy integration with main control boards like Arduino, STM32, and ESP32. Additionally, we provide example code for Arduino, STM32, and ESP32, which enables functions such as displaying images, English characters, numbers, and drawing points, lines, rectangles, and circles.

Product Features

Resolution: 800x480
SPI interface, requiring fewer pins
Onboard level-shifting chip, compatible with 3.3V and 5V microcontroller interfaces
Designed based on the Raspberry Pi 40-pin GPIO interface, compatible with Raspberry Pi series boards
Reserved SPI communication interface for easy integration with main control boards such as Arduino, STM32, and ESP32
Provides open-source example programs for Raspberry Pi, Arduino, STM32, and ESP32 development boards

Product Specifications

Dimensions	Screen: 170.2mm x 111.2mm，Driver Board: 65mm (length) x 30mm (width)
Pixels	800 x 480
Display Colors	Monochrome (Black and White)
Gray Levels	2
Level-Shifting Chip	TXS0108EPWR
Signal Interface	SPI
Power Supply Voltage	3.3V/5V
Display Area	163.2mm x 97.9mm
Partial Refresh	0.3s (4-wire SPI mode)
Full Refresh	3s (4-wire SPI mode)

Refresh Process Explanation: (Refresh Time: The entire process from the start of screen activity to the stable display of the image)

The driver board is designed based on the 40-pin interface of Raspberry Pi, making it suitable for Raspberry Pi series boards.

A pre-configured SPI control interface is reserved for easy integration with main control boards like Arduino, STM32, and ESP32.

Note: for reference only, the Raspberry Pi boards are NOT included

This driver board equipped with an E-Ink screen adapter board and a flexible flat cable (FPC) for 7.5 inch E-paper screen.

Sunlight Readability

This E-paper display can be read directly, unlike LCD screens that require brightness adjustment or backlight to read, can better protect the eyes and body health.

Product Advantages

E-paper uses "microcapsule electrophoretic display" technology for image display. Its working principle involves charged nanoparticles suspended in a liquid that migrate under the influence of an electric field, creating a display effect close to traditional printed paper through reflection under ambient light. Once refreshed, it requires no power and can maintain the displayed image for a long time. E-paper can clearly display images under various lighting conditions, including ambient and natural light, without the need for backlighting, and offers an almost 180° viewing angle. Due to its paper-like display quality, it is commonly used in e-readers, labels, and similar applications.

Interface Definition

VCC	3.3V/5V
GND	Power ground
RST	External reset pin (low level reset)
BUSY	Busy status output pin
D/C	Data/Command control pin (high level for data, low level for command)
MOSI	SPI communication MOSI pin
CS	SPI chip select pin (active low)
CLK	SPI communication SCK pin
LED1_P	LED1 control pin
LED2_P	LED2 control pin
K1_P	Button K1 control pin
K2_P	Button K2 control pin

Resource Overview

The overview of the driver board resources is shown in the figure below:

① E-paper screen matching resistor selection switch(default is "A" position)

② E-paper screen connector

③ SPI line selection switch(default is "0" position)

④ Two LEDs

⑤ Two buttons

⑥ SPI control interface connector

⑦ Control pins for LEDs and buttons

⑧ Level-shifting chip TXS0108

⑨ Raspberry Pi 40-pin GPIO interface

Application

Suitable for e-book readers, electronic price tags, industrial and logistics labels, digital signage, billboards, conference nameplates, electronic memos, etc.