Installation

Prerequisities

• If you are using an OrangePi, you need to install WiringOP for your board type first.
• If you are using a NanoPi, you need to install WiringNP for your board type first.

What if I don't install them?

Well, of course, the system will not work without these packages. You may ask, how other board types can run without any dependencies; we use SYSFS interface to control GPIO pins of other boards manually. If you'd like to use SYSFS interface on OPi or NPi too, you can change the content of "ioPlatform" variable for your board type to 'sysfs'.

Installation Process

There are 2 ways to install this system to your SBC.

Online Installation

There is an automatic installation script at releases page of repository. You can use it to start the installation process. $ sudo bash auto_install.sh

This script is going to install the system as a Systemd service automatically. Name of the service will be "realtimeio".

Manual Installation

Prerequisities for Manual Installation

• NodeJS >= v10
• Git

For manual installation, you should first clone the git repository to your local board.

$ git clone https://github.com/ardaseremet/SBC-RealTimeIO.git
$ cd SBC-RealTimeIO

Then, install the NPM dependencies.

$ npm install

Next, we will create a Systemd entry for our system to run on system bootup automatically. If you don't want it, you can skip.

$ sudo nano /etc/systemd/system/realtimeio.service

After that, change the 'user', 'WorkingDirectory' and 'ExecStart' to point to the system path from the text below. Then, you can paste the contents to file and save.

[Unit]
Description=Realtime GPIO Controller for Linux SBCs
[Service]
User=${username}
Restart=always
KillSignal=SIGQUIT
WorkingDirectory=${projectPath}
ExecStart=${projectPath}/app.js
[Install]
WantedBy=multi-user.target

For the changes on systemd daemon to take effect, we need to reset daemon.

$ sudo systemctl daemon-reload

We are now ready to activate the systemd entry.

$ sudo systemctl enable realtimeio
$ sudo systemctl start realtimeio

Now, point your browser to port 80 of your SBC. If you see the homepage of system, you made it!

Thank you for reading!