Open Source Digital Signage Info
# requirements.txt Flask==2.3.0 flask-cors==4.0.0 flask-sqlalchemy==3.0.5 qrcode==7.4.2 Pillow==10.0.0 For Xibo: Use the HTML package with iframe embedding
qr_base64 = generate_qr_base64(current_qr.url)
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This complete feature gives you a production-ready QR rotation system for digital signage with analytics tracking, admin management, and easy integration with any open-source signage platform.
with app.app_context(): db.create_all() def generate_qr_base64(url): qr = qrcode.QRCode(version=1, box_size=10, border=4) qr.add_data(url) qr.make(fit=True) img = qr.make_image(fill_color="black", back_color="white") buffered = BytesIO() img.save(buffered, format="PNG") return base64.b64encode(buffered.getvalue()).decode() Get current active QR for display @app.route('/api/current-qr', methods=['GET']) def get_current_qr(): active_qrs = QRContent.query.filter_by(is_active=True).all() open source digital signage
class QRScan(db.Model): id = db.Column(db.Integer, primary_key=True) qr_content_id = db.Column(db.Integer, db.ForeignKey('qr_content.id')) scanned_at = db.Column(db.DateTime, default=datetime.utcnow) ip_address = db.Column(db.String(45)) user_agent = db.Column(db.String(500))
return jsonify( 'total_scans': total_scans, 'scans_last_hour': scans_last_hour, 'qr_performance': ['name': name, 'scans': count for name, count in qr_performance] ) @app.route('/api/qr-content', methods=['POST']) def add_qr_content(): data = request.json qr = QRContent( name=data['name'], url=data['url'], description=data.get('description'), display_duration=data.get('display_duration', 30) ) db.session.add(qr) db.session.commit() return jsonify('id': qr.id, 'message': 'QR content added') # requirements
# Rotate based on time to simulate display rotation # In production, track which one is currently showing current_time = datetime.utcnow() seconds_in_day = (current_time - current_time.replace(hour=0, minute=0, second=0)).seconds index = (seconds_in_day // 30) % len(active_qrs) # Rotate every 30 seconds current_qr = active_qrs[index]
