Kari Argillander
f806c5829b
* pre-commit: Update and enable clang-format check There is newer version from clang-format so use that. We do not yet want 18 as that is little bit too new. * Format some thing by hand which clang-format "breaks" Clang-format will format some things little bit off in some cases. Format some things by hand so we get cleaner end result. * Run clang-format with ``` pre-commit run --all-files clang-format ``` We have already in previously checked places where clang-format does not make good format and ignored those (hopefully most of the things). --------- Co-authored-by: Kari Argillander <kari.argillander@fidelix.com>
Raspberry Pi connected to a Blinkt! RGB card demo
This demo includes a BACnet server with Color objects and service handlers for the eight RGB (red-green-blue) LEDs attached to the Blinkt! card.
Installation
The demo uses pigpiod (Pi GPIO Daemon) and developer library. To install and run the daemon at powerup (and immediately):
$ sudo apt install libpigpio-dev libpigpiod-if-dev pigpiod
$ sudo systemctl enable pigpiod
$ sudo systemctl start pigpiod
WiFi Power
If you are using a Raspberry Pi with WiFi, you will likely want to disable WiFi Power saving. Under Raspberry Pi OS, so the following.
Startup service in systemd
To manage to start programs you should use systemd Unit files.
File name: /etc/systemd/system/wlan0pwr.service
You can edit the file using the systemd edit:
rpi ~$ sudo systemctl --full --force edit wlan0pwr.service
In the empty editor insert these statements, save them and quit the editor:
[Unit]
Description=Disable wlan0 powersave
After=network-online.target
Wants=network-online.target
[Service]
Type=oneshot
ExecStart=/sbin/iw wlan0 set power_save off
[Install]
WantedBy=multi-user.target
Enable the new service with:
rpi ~$ sudo systemctl enable wlan0pwr.service
Building the Blinkt! BACnet Application
Build from the root folder:
$ make blinkt
Running the Blinkt! BACnet Application
Run from the bin/ folder:
$ ./bin/bacblinkt 9009
Blinkt! as a Startup service with systemd
To manage to start programs you should use systemd Unit files. Here is a very simple template you can use to start to solve your problem. Create a new service with:
rpi ~$ sudo systemctl --full --force edit bacnet.service
In the empty editor insert these statements, save them and quit the editor:
[Unit]
Description=BACnet Service
After=network-online.target
[Service]
ExecStart=/home/pi/bacnet.sh
[Install]
WantedBy=network-online.target
Enable the new service after the next reboot with:
rpi ~$ sudo systemctl enable bacnet.service
Create your bacnet.sh shell script in your home folder (change from pi if that is not your home folder). Use the shell script to set any environment variables that you want, or configuration settings for the bin/bacblinkt application such as a specific device ID.
A simplistic bacnet.sh script will look like this (with stdout/stderr to /dev/null):
#!/bin/bash
/home/pi/bacnet-stack/bin/bacblinkt 9009 > /dev/null 2>&1