EP-0133

Descriptions

Electronic paper, also sometimes electronic ink(E-Ink) or electrophoretic display, are display devices that mimic the appearance of ordinary ink on paper.
Electrodes located above and below the capsules move up and down when a positive or negative electric field is applied, which makes the surface of the electronic paper display reflect a certain color.
The consumption of E-ink is very low during operation.
Once the data is refreshed on the screen, it can be kept for a long time without power consumption.
It is very suitable for displaying some specific information for a long time.
The only drawback may be the slow refresh speed.
The E-Ink provided by the product supports BRW three colors, B stands for black, R stands for red, and W stands for white, which can be refreshed on the screen through the picture file created in advance.

Features

• High Contrast
• Sunlight Readable
• low-power performance attributes
• Easy To Assemble

Specifications

• 250×122 pixels display
• High contrast High reflectance
• Ultra wide viewing angle Ultra low power consumption
• Pure reflective mode
• Bi-stable display
• Commercial temperature range
• Landscape portrait modes
• Hard-coat antiglare display surface
• Ultra Low current deep sleep mode
• On chip display RAM
• Waveform can stored in On-chip OTP or written by MCU
• Serial peripheral interface available
• On-chip oscillator
• On-chip booster and regulator control for generating VCOM, Gate and Source driving voltage
• I2C signal master interface to read external temperature sensor
• Built-in temperature sensor

Mechanical Specification

Parameter	Specifications	Unit	Remark
Screen Size	2.13	Inch	-
Display Resolution	122(H)×250(V)	Pixel	DPI:130
Active Area	23.705×48.55	mm	-
Pixel Pitch	0.1942×0.1942	mm	-
Pixel Configuration	Square	-	-
Outline Dimension	29.2(H)×59.2 (V) ×1.0(D)	mm	-
Screen Weight	3.2±0.5	g	-

Package Includes

• 1 x 2.13 inch E-paper (BRW)

How To Use

How To Assemble

• Just connect the Hat board of the e-paper to the GPIO pins of the Raspberry Pi as shown below.

此处应该有图接驳图

How To Configure

• Test Environment：

Item	Details
Hardware	Raspberry Pi 3B/3B+/4B/Zero/Zero W, 2.13 inch E-paper(BRW), 5V/3A USB-C power supply
OS	Raspberry Pi OS
Distributor ID	Raspbian
Description	Raspbian GNU/Linux 10 (buster)
Release	10
Codename	buster
Kernel Version	5.4.79-v7l+
Dependent library	libpng-dev Version: 1.6.36-6
Dependent Third Part library	wiringPi gpio version: 2.52

• Software configuration Steps

1. After assembling, boot up Raspberry Pi and login, make sure your Pi can access internet, and then open a terminal and typing:

sudo apt-get update
sudo apt-get -y install libpng-dev
sudo apt-get -y purge wiringpi
sudo hash -r
cd /tmp
wget https://project-downloads.drogon.net/wiringpi-latest.deb
sudo dpkg -i wiringpi-latest.deb
gpio -v

If the content shown in the figure appears in the terminal, the basic environment has been installed.

Keywords

• 2.13 inch E-paper (BRW), E-paper, EPD, e-ink, Electronic Ink, Electronics Ecosystem, display module.

FAQ

To be continue...