• See also in this wiki: E-Ink Display

• https://www.waveshare.com/wiki/2.13inch_e-Paper_HAT#Raspberry_Pi
• Data sheet: see programming/…
• Overview of all GPIO connections Sensor Connection Overview

If the board you get is the HAT version like 2.13inch e-Paper HAT, you can directly attach it on the 40PIN GPIO of Raspberry Pi. Or you can wire ti to Raspberry Pi with 8PIN cable.

Connect to Raspberry Pi

sudo raspi-config
Choose Interfacing Options -> SPI -> Yes  to enable SPI interface

• wiringPi
• BCM2835 (source: http://www.airspayce.com/mikem/bcm2835/)
• python
• example code

sudo apt-get install wiringpi

#For Pi 4, you need to update it：
cd /tmp
wget https://project-downloads.drogon.net/wiringpi-latest.deb
sudo dpkg -i wiringpi-latest.deb
gpio -v
#You will get 2.52 information if you install it correctly

• Downloadpath https://www.airspayce.com/mikem/bcm2835/
• Further information http://groups.google.com/group/bcm2835

# download the latest version of the library, say bcm2835-1.xx.tar.gz, then:
tar zxvf bcm2835-1.xx.tar.gz
cd bcm2835-1.xx
./configure
make
sudo make check
sudo make install

#python2
sudo apt-get update
sudo apt-get install python-pip
sudo apt-get install python-pil
sudo apt-get install python-numpy
sudo pip install RPi.GPIO
sudo pip install spidev
#python3
sudo apt-get update
sudo apt-get install python3-pip
sudo apt-get install python3-pil
sudo apt-get install python3-numpy
sudo pip3 install RPi.GPIO
sudo pip3 install spidev

sudo git clone https://github.com/waveshare/e-Paper
cd e-Paper/RaspberryPi\&JetsonNano/

cd python/examples
# python2
sudo python xxx.py
# python3
sudo python3 xxx.py

sudo pigpiod
pi@raspberrypi:~ $ pigs spio 0 50000 0
0
pi@raspberrypi:~ $ pigs spix 0 10 20 30 40 50
5 10 20 30 40 50
pi@raspberrypi:~ $ pigs spix 0 10 20 30 40 50
5 10 20 30 40 50
pi@raspberrypi:~ $ pigs spix 0 10 20 30 40 50
5 0 0 0 0 0
pi@raspberrypi:~ $ pigs spix 0 10 20 30 40 50
5 10 20 30 40 50

If the pins are connected, it returns the same result as passed in the command, if the disconnect get zeros. Is this a compiled application with an error or missing rights?