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Minimal and clean dashboard to visualize some stats of Pi-Hole with an E-Ink display attached to your Raspberry Pi

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Clean Dashboard for Pi-Hole

Minimal and clean dashboard to visualize some stats of Pi-Hole with an E-Ink display attached to your Raspberry Pi.

This is very useful if you keep a Pi Zero with Pi-Hole connected to your router and you want a clean dashboard to monitor its status. Additionally, I do not use static IP so if this ever change, I have an easy way to get the real time IP of the Raspberry.

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Raspberry Pi Zero

My Setup

Configuration

After set the webui api token, the tool should run out of the box with standard installation of Pi-Hole.
You can find your API in Pi-Hole's webpage: Settings - API - Show API token - Yes, show API token. Then, RAW API Token is the token.
If your instance of Pi-Hole is running on a different port than 80, you should change it inside /etc/pihole-dashboard/config.toml.
The IP address is shown considering the wlan0 interface, you can change this value in /etc/pihole-dashboard/config.toml.

WaveShare e-Paper dependency

Making the E-Ink display work is not fully covered here, as it depends mostly on the display you use. As said before, I have the WaveShare's 2.13 inch E-Ink display, that has a nice detailed Wiki here: https://www.waveshare.com/wiki/2.13inch_e-Paper_HAT.

You can find on the above link the list of required dependencies for Python and how to run and test the provided examples. Just for reference, this is the list of dependencies that should be installed on a Raspberry Pi Zero to configure the display I have:

sudo apt-get install python3-pip python3-pil python3-numpy
sudo pip3 install RPi.GPIO
sudo pip3 install spidev 

In order to use the 2.13 inch E-Ink display with Python, you also need to get and build their waveshare-epd library:

git clone https://github.com/waveshare/e-Paper.git
cd e-Paper/RaspberryPi_JetsonNano/python/
sudo python3 setup.py install

You can check if the display is working by running the test example:

cd e-Paper/RaspberryPi_JetsonNano/python/
sudo python3 examples/epd_2in13_V2_test.py

Test script depends on your screen type. There should be a sticker which tells your screen type. If yours is a newer V3, before run the test, your should change V2 to V3.

Remember that you need root access to control the display, so be sure to run the python example as root.
You also need to enable the SPI interface, otherwise the display connection will not work.

The example will print several geometric objects on the screen if everything is working as expected, followed by a simple clock program that updates every second. If the example does not work, do not proceed further with the installation as this probably will not work either.

Installation

The installation requires to have already a Raspberry with Pi-Hole installed and correctly running, if you have problem installing Pi-Hole check their README.

Dependencies

Ensure that you have already this Pillow dependency installed:

sudo apt install libopenjp2-7

From PyPI

sudo pip3 install pihole-dashboard

From Source

git clone https://github.com/santoru/pihole-dashboard
cd pihole-dashboard
sudo pip3 install .

Once installed, Add API key to your config file, change screen type if needed (at /etc/pihole-dashboard/config.toml), then reboot the Raspberry Pi. The dashboard should appear few minutes after the reboot.

Uninstall

You can remove the tool anytime by running

sudo pip uninstall pihole-dashboard

You can also manually remove the cronjob and config file by running

sudo rm /etc/cron.d/pihole-dashboard-cron
sudo rm -rf /etc/pihole-dashboard/

How it works

The tool will install a Cron Job on the Raspberry Pi that will check the status of Pi-Hole every minute. If there's an update to display, the screen will refresh and update its content.

Troubleshooting

If the dashboard is not displaying, you can check if the script return an error by running

sudo pihole-dashboard-draw

If everything is working as expected, nothing will be printed out. If you still have errors, please open an issue.