A simple Flask webserver for plain text quick printing on a Phomemo M110 label printer.
Not security oriented.
Makes use of one-shot script that connects to the printer via bluetooth and sends raw bytes to print, then disconnects.
This project is based on:
First make sure your user can access bluetooth.
If yes, find your Phomemo M110 printer - MAC address and channel - using your preferred tool.
Edit webserver/.env file according to what you found:
PRINTER_BT_MAC="DE:AD:BE:EF:FE:ED"
PTINER_BT_CHAN="1"
You can run the web server manually by entering webserver directory, or set it up by creating a systemd service.
I recommend using virtualenv python module.
Start by running command below in top level of the repository
python -m venv venv && . venv/bin/activate
Then install python requirements by running
pip install -r requirements.txt
Enter into webserver directory:
cd webserver
Now web server can be directly started by running:
python webserver.py
It should be available on your machine on port 8081.
To make it run at startup, assuming you use systemd, first create a file, for example:
/etc/systemd/system/phomemo.service
[Unit]
Description=phomemo
[Service]
ExecStart=/home/user/git/phomemo/venv/bin/python /home/user/git/phomemo/webserver/webserver.py
Restart=always
User=user
Group=user
WorkingDirectory=/home/user/git/phomemo/webserver/
[Install]
WantedBy=multi-user.target
Then run:
systemctl daemon-reload
systemctl enable phomemo
systemctl start phomemo
And finally, make sure that bluetooth and a printer is powered on and the bluetooth device is visible, otherwise you will receive server error.
If you forgot, just turn on the printer and click F5 -> resend form. It should start printing then.
This project is just a crude example, but good enough for quick label printing.
Also, I do not encourage port forwarding this web server to the internet.