Moved to Python3, and moved to the new Adafruit Library

README.md

@@ -19,7 +19,9 @@ To make this project work, you will need :
 
 ## Installation
 
-Start by following the guide [here](https://learn.adafruit.com/networked-thermal-printer-using-cups-and-raspberry-pi) to install the CUPS software needed to print images. You can also get some information from [here](https://learn.adafruit.com/mini-thermal-receipt-printer) and [here](https://learn.adafruit.com/instant-camera-using-raspberry-pi-and-thermal-printer) if you're stuck.
+Start by following the guide [here](https://learn.adafruit.com/networked-thermal-printer-using-cups-and-raspberry-pi) to install the CUPS software needed to print images. If you want, you can install it via the command line, [following this guide](https://help.ubuntu.com/lts/serverguide/cups.html).
+
+You can also get some information from [here](https://learn.adafruit.com/mini-thermal-receipt-printer) and [here](https://learn.adafruit.com/instant-camera-using-raspberry-pi-and-thermal-printer) if you're stuck.
 
 Then, setup the project :
 ```
@@ -43,6 +45,15 @@ If you liked this project, feel free to support my work !
 
 [https://n07070.xyz/post/about-me/about-me/](Donations welcome :-])
 
+## Links
+
+- [A blog post about some CUPS configuration](http://scruss.com/blog/2015/07/12/thermal-printer-driver-for-cups-linux-and-raspberry-pi-zj-58/)
+- [Github repo with CUPS drivers for the Adafruit Thermal Printer ( zj-58 )](https://github.com/klirichek/zj-58)
+- [A link to buy one in Europe](https://rlx.sk/sk/various-boards/1829-mini-thermal-receipt-printer-adafruit-597.html)
+- [Another link to buy one, direct from factory](https://www.cashinotech.com/csn-a2-58mm-mini-panel-thermal-receipt-printer_p11.html)
+-
+
+
 ## Licence
 
 ```

littleprynter.py

@@ -3,12 +3,37 @@
 import os, random, sys, json
 from datetime import datetime
 from subprocess import call
-from Adafruit_Thermal import *
+
+import serial
 from flask import Flask, render_template, jsonify, make_response, request, redirect, url_for, abort, session, flash
 from flask_limiter import Limiter
 from pprint import pprint
 from flask_limiter.util import get_remote_address
 
+# Update to using the new Python 3 lib
+import board
+import busio
+
+import adafruit_thermal_printer
+
+ThermalPrinter = adafruit_thermal_printer.get_printer_class(2.69)
+
+RX = board.RX
+TX = board.TX
+
+uart = serial.Serial("/dev/ttyAMA0", baudrate=19200, timeout=3000)
+printer = ThermalPrinter(uart, auto_warm_up=False)
+
+# Initialize the printer.  Note this will take a few seconds for the printer
+# to warm up and be ready to accept commands (hence calling it explicitly vs.
+# automatically in the initializer with the default auto_warm_up=True).
+printer.warm_up()
+
+if printer.has_paper():
+    print('Printer has paper!')
+else:
+    print('Printer might be out of paper, or RX is disconnected!')
+
 
 
 app = Flask(__name__)
@@ -77,38 +102,31 @@ def logout():
     flash('Tu est déconnecté', 'info')
     return redirect(url_for('login'))
 
-@app.route('/print/image')
+# @app.route('/print/image')
-@limiter.limit("5 per minute", error_message=error_handler_limiter)
+# @limiter.limit("5 per minute", error_message=error_handler_limiter)
-def print_image():
+# def print_image():
-    if session.get('logged_in'):
+#     if session.get('logged_in'):
-        img = random.choice(os.listdir("static/images/")) #change dir name to whatever
+#         img = random.choice(os.listdir("static/images/")) #change dir name to whatever
-        # call(["lp", "-o fit-to-page", "static/images/" + img])
+#         # call(["lp", "-o fit-to-page", "static/images/" + img])
-        printer = Adafruit_Thermal(SERIAL_PORT, BAUDRATE, timeout=5)
+#         printer = Adafruit_Thermal(SERIAL_PORT, BAUDRATE, timeout=5)
-        printer.begin()
+#         printer.begin()
-        printer.feed(1)
+#         printer.feed(1)
-        printer.printImage("static/images/" + img, True)
+#         printer.printImage("static/images/" + img, True)
-        printer.feed(2)
+#         printer.feed(2)
-        return redirect(url_for('display_index_page'))
+#         return redirect(url_for('display_index_page'))
-    else:
+#     else:
-        return redirect(url_for('login'))
+#         return redirect(url_for('login'))
 
 @app.route('/print/text', methods=['POST'])
 @limiter.limit("3: per minute", error_message=error_handler_limiter)
 def print_text():
     if session.get('logged_in'):
         if len(request.form['message']) < 200:
-            printer = Adafruit_Thermal(SERIAL_PORT, BAUDRATE, timeout=5)
+            printer.set_defaults()
-            printer.begin()
+            printer.print((request.form['message']))
-            printer.justify('L')
+            printer.print("From" + session['user'])
-            printer.println((request.form['message']).encode())
-            printer.setSize('S')
-            printer.println(">> " + datetime.now().strftime("%Y-%m-%d %H:%M:%S") + " " + session.get('user'))
-            printer.justify('C')
-            printer.println("------------------------------")
             printer.feed(2)
-            printer.sleep()      # Tell printer to sleep
+
-            printer.wake()       # Call wake() before printing again, even if reset
-            printer.setDefault() # Restore printer to defaults
             return redirect(url_for('display_index_page'))
         else:
             flash('Le text est trop long, 200 caractères au maximum stp !')