A CLI-based e-paper display controller for Raspberry Pi with 2.13" e-Paper display:
- Screen Control: Turn the display on/off
- Display Modes: Light and dark mode support
- Message Layouts: Display messages in top or center positions
- Persistence: Latest message is saved to disk when screen is off
- Direct CLI Access: Perfect for SSH connections and automation
- System Monitoring: Scripts for sending system stats from remote machines
sudo apt update
sudo apt-get update
sudo apt-get install python3-pip gpiod libgpiod-dev
sudo locale-gen en_US.UTF-8
sudo dpkg-reconfigure locales
wget https://github.com/joan2937/lg/archive/master.zip
unzip master.zip
cd lg-master
make
sudo make install
wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.71.tar.gz
tar zxvf bcm2835-1.71.tar.gz
cd bcm2835-1.71/
sudo ./configure && sudo make && sudo make check && sudo make install
wget https://github.com/WiringPi/WiringPi/releases/download/3.10/wiringpi_3.10_armhf.deb
sudo apt install ./wiringpi_3.10_armhf.debMake sure sudo nvim /boot/firmware/config.txt looks like this:
dtparam=spi=on
[all]
enable_uart=1
dtoverlay=disable-bt
otherwise, run sudo raspi-config and enable Interface Options > I4 and Interface Options > I6
sudo make clean && sudo makejarvis --on
jarvis --off
jarvis --light
jarvis --dark
jarvis --helpy=0-2: Top margin (2px)
y=2-22: Navbar area (20px)
y=22-119: Main content (97px)
y=119-122: Bottom margin (3px)
# Display message at the top
jarvis --message "Status Update" --layout topbar
# Display message in center (default)
jarvis --message "Main message here" --layout main
# Display message in dark mode
jarvis --dark --message "Dark mode message"When the screen is off, the latest message is automatically saved to /tmp/jarvis_state.txt. When you turn the screen back on, the stored message will be displayed automatically.
# This message will be saved when screen is off
jarvis --message "Latest message" --layout topbar
# Turn screen on - will display the stored message
jarvis --onNew script init in the home folder
#!/usr/bin/env bash
/home/sjdonado/jarvis/scripts/countdown_topbar.sh && /home/sjdonado/jarvis/scripts/quote_of_the_day.sh && jarvis --on0 4 * * * /home/sjdonado/jarvis/init
Edit /etc/rc.local
/home/sjdonado/jarvis/init
The application maintains its state (screen on/off, display mode, latest message) in /tmp/jarvis_state.txt.