Raspberry Pi Setup

Basic Setup of the Raspberry

With the Raspberry Pi Imager install the desired Raspberry Pi Os Version on a SD-Card. If your system becomes headless, then you need to have SSH connection to the raspberry. Later on we need to use the terminal on the Raspberry Pi.

Now put the SD-Card into the Raspberry Pi and boot for the first time. To bring you system up to date I would run the following 3 commands and reboot the raspberry afterweards.

sudo apt update
sudo apt full-upgrade
sudo apt autoremove
sudo reboot now

Installation of Python and Pip

Install python and pip with the following command:

sudo apt install python3-full python3-pip

Installation of the Naneos Package in an virtual environment

Create a folder, where you want to execute the naneos Manager and go into this folder.

mkdir naneos-uploader
cd naneos-uploader

Now we create the virtual environment in an hidden folder called .venv:

python -m venv .venv

Now we activate the virtual environment and install the naneos package that we need for our uploader.

source .venv/bin/activate
pip install naneos-devices

After the installation we can exit the virtual environment.

deactivate

Creation of the uploader script:

Create a script and copy in the following content.

vim uploader-script.py

#!/home/pi/naneos-uploader/.venv/bin/python

import signal
import time

from naneos.manager import NaneosDeviceManager

running = True  # global flag to control the main loop


def handle_signal(signum, frame):
    global running
    running = False


# register signal handlers for SIGTERM and SIGINT
signal.signal(signal.SIGTERM, handle_signal)
signal.signal(signal.SIGINT, handle_signal)


def rp_service_main() -> None:
    manager = NaneosDeviceManager(
        use_serial=True, use_ble=True, upload_active=True, gathering_interval_seconds=30
    )
    manager.start()

    try:
        while running:
            remaining = manager.get_seconds_until_next_upload()

            slept = 0
            while running and slept < remaining + 1:
                time.sleep(1)
                slept += 1

            if not running:
                break

    finally:
        manager.stop()
        manager.join()


if __name__ == "__main__":
    rp_service_main()

Now we need to make our script executable mit:

chmod +x uploader-script.py

Creation of the service

First we need to create the service-file:

sudo vim /etc/systemd/system/naneos_uploader.service

Then we can enter the following to link the python file and the service.

[Unit]
Description=Naneos Uploader Service Example
After=network.target

[Service]
ExecStart=/home/pi/naneos-uploader/uploader-script.py
WorkingDirectory=/home/pi/naneos-uploader
StandardOutput=inherit
StandardError=inherit
Restart=always
RestartSec=5
User=pi

[Install]
WantedBy=multi-user.target

Now we need to reload the daemons and enable and start the service:

sudo systemctl daemon-reload
sudo systemctl enable naneos_uploader.service
sudo systemctl start naneos_uploader.service