https://github.com/alifeee/thermal-printer-pi
Thermal Printer scripts for Raspberry Pi
https://github.com/alifeee/thermal-printer-pi
escpos python raspberry-pi thermal-printer zj-58
Last synced: 3 months ago
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Thermal Printer scripts for Raspberry Pi
- Host: GitHub
- URL: https://github.com/alifeee/thermal-printer-pi
- Owner: alifeee
- Created: 2024-09-03T22:29:15.000Z (11 months ago)
- Default Branch: main
- Last Pushed: 2025-03-16T14:31:04.000Z (4 months ago)
- Last Synced: 2025-03-28T16:49:57.171Z (4 months ago)
- Topics: escpos, python, raspberry-pi, thermal-printer, zj-58
- Language: Python
- Homepage:
- Size: 20.5 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Thermal Printing
For more context on the printer, see:
-
## python-escpos
The main Python library used is python-escpos:
Here is an example file:
```python
from escpos.printer import Usb
p = Usb(0x0416, 0x5011, profile="ZJ-5870")
p.text("Hello World\n")
p.barcode('4006381333931', 'EAN13', 64, 2, '', '')
p.qr("https://alifeee.co.uk")
p.close()
```
## Installation
```bash
# download files
mkdir -p /usr/alifeee
git clone [email protected]:alifeee/thermal-printer-pi.git /usr/alifeee/thermalprinter
# install python
python3 -m venv env
. env/bin/activate
pip install python-escpos[usb]
# add usb rules
echo 'SUBSYSTEM=="usb", ATTRS{idVendor}=="0416", ATTRS{idProduct}=="5011", MODE="0666", GROUP="dialout"' > /etc/udev/rules.d/99-escpos.rules
sudo systemctl restart udev
sudo udevadm control --reload-rules && sudo udevadm trigger
# add cgi scripts
mkdir -p /var/www/cgi/do/
sudo ln -s /usr/alifeee/thermalprinter/cgi/qr /var/www/cgi/do/qr
sudo ln -s /usr/alifeee/thermalprinter/cgi/qr.cgi /var/www/cgi/do/qr.cgi
```
## Use
### Test printer
```bash
./env/bin/python test.py
```
### Print QR code
```bash
./env/bin/python qr.py -t title -url "http://raspberrypi.local/do/qr"
```
## Using Flask server
### nginx configuration
```nginx
server {
listen 80 default_server;
listen [::]:80 default_server;
index index.html;
server_name _;
# return homepage even if Flask server is off
location = / {
alias /usr/alifeee/thermalprinter/templates/;
try_files index.html =404;
}
# otherwise use Flask server
location / {
# root /var/www/html;
# try_files $uri $uri/ =404;
proxy_pass http://localhost:5000;
proxy_redirect off;
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_read_timeout 900;
client_max_body_size 20M;
}
location /do/ {
root /var/www/cgi;
index index.cgi;
fastcgi_intercept_errors on;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME /var/www/cgi$fastcgi_script_name;
fastcgi_pass unix:/var/run/fcgiwrap.socket;
}
}
```
### test for debugging
./env/bin/flask --app server run --host 0.0.0.0
### enable service
```bash
# install modules
python3 -m venv env
./env/bin/pip install -r requirements.txt
# enable systemd
sudo cp thermalprinter.service /etc/systemd/system/thermalprinter.service
sudo systemctl enable thermalprinter.service
sudo systemctl start thermalprinter.service
sudo systemctl status thermalprinter.service
```