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Florian Klemenz 2022-05-05 10:03:38 +02:00
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# FBDASH - lightweight dashboard for the RaspberryPi without X (using framebuffer only)
<a href="resources/_20220505_094153.JPG">
<img src="resources/_20220505_094153.JPG" width="200px;" align="none" hspace="25px" vspace="0" />
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## Get the sources
In order to setup the dashboard start with cloning this repo ;)
git clone https://git.klelifo.de/flo/fb-dash
cd fb-dash
# Connect the display to the RaspberryPi
## Connect the display to the RaspberryPi
Here is some info on how to wire the display to the RaspberryPi.
## Full connection diagram (9 wires needed)
### Full connection diagram (9 wires needed)
Wire the display connector according to the connector scheme below.\
**NOTE:** The 56 Ohm resistor is suggested for safety reasons - but it also seems to work fine wihtout it
@ -23,7 +30,7 @@ Wire the display connector according to the connector scheme below.\
GND --------------------------- GND | | PIN 9,14,20,25
VCC --------------------------- 3,3V | | PIN 1,17
## Minimal connection diagram (7 wires needed)
### Minimal connection diagram (7 wires needed)
Wire the display connector according to the connector scheme below.\
**NOTE:** The 56 Ohm resistor is suggested for safety reasons - but it also seems to work fine wihtout it
@ -39,7 +46,7 @@ Wire the display connector according to the connector scheme below.\
GND --------------------------- GND | | PIN 9,14,20,25
VCC --------------------------- 3,3V | | PIN 1,17
## Some explanation
### Some explanation
|---------> Power
GND --|
VCC --|
@ -59,7 +66,7 @@ Wire the display connector according to the connector scheme below.\
|---------> Resets the display controller when pulled low
RESET |
# Configure the display
## Configure the display
**TL;DR** just run ```make rpi-config```
Some work is needed before we can actually use the ILI9341 display with the RaspberryPi.\
@ -68,10 +75,10 @@ Essentially we need to
* Load the fbtft_device kernel module with the correct parameters
to get a working /dev/fb1 framebuffer device.
## Enable SPI interface on the raspberry pi
### Enable SPI interface on the raspberry pi
echo "dtparam=spi=on" | sudo tee -a /boot/config
## Activate modules to be loaded at boot
### Activate modules to be loaded at boot
echo "spi_bcm2835" | sudo tee -a /etc/modules
echo "fbtft_device" | sudo tee -a /etc/modules
echo "options fbtft_device name=rpi-display gpios=reset:25,dc:24,led:18" | sudo tee -a /etc/modprobe.d/fbtft_device.conf
@ -79,28 +86,28 @@ to get a working /dev/fb1 framebuffer device.
# Setup fbdash binary
## Setup fbdash binary
**TL;DR** just run ```sudo apt install -y libmariadb2 && make install```
After the display is setup we can build and install the fbdash binary.
## Build the sources
### Build the sources
sudo apt install libmariadb2
make
## Install in /usr/bin
### Install in /usr/bin
sudo make install
## Test it
### Test it
fbdash
# Use systemd for regular updates
## Use systemd for regular updates
While we could also use cron for regular execution of the fbdash binary I opted to use systemd this time.\
The future is now ... ;)
## Install unit files
### Install unit files
**TL;DR** just run ```make systemd-config```
The following files use systemd to setup a regular update of the dashboard screen (60s by default).\
@ -111,7 +118,7 @@ If you like to change the default, just edit the ```fbdash.timer``` file before
sudo systemctl enable fbdash.timer
sudo systemctl start fbdash.timer
## Check timers
### Check timers
systemctl list-timers
NEXT LEFT LAST PASSED UNIT ACTIVATES
Wed 2022-05-04 14:16:10 CEST 28s left Wed 2022-05-04 14:15:10 CEST 31s ago fbdash.timer fbdash.service