Overview
QuecPython provides a concise and efficient QR code generation and display solution. Developers only need to call one line of code to present a QR code on the device screen, significantly lowering the development threshold for information interaction in IoT devices. This feature is perfectly compatible with various screen-equipped modules, supports standard formats such as text, URLs, and WiFi configurations, and allows customization of size and colors. It can be quickly applied to scenarios like device provisioning and information display. Through highly encapsulated API design, QuecPython makes QR code function development unprecedentedly simple and efficient, helping developers easily implement convenient interaction between devices and mobile phones.
Core Advantages
- Minimalist Invocation: No need for complex graphics libraries, display QR codes directly
- Intelligent Adaptation: Automatically matches screen resolution
- Multi-content Support: Supports formats such as URLs, text, and contact information
Typical Application Scenarios
- Device Provisioning: Display WiFi connection QR codes for one-click network configuration
- Information Exchange: Share device serial numbers, configuration information, and other key data
- Webpage Redirection: Display links to product official websites and technical documents
Feature Introduction
### QR Code Display
This method is used to display a QR code on the LCD.
qrcode.show(qrcode_str, magnification, start_x, start_y, Background_color, Foreground_color)
Parameter Description:
- qrcode_str - string type, QR code content (required)
- magnification - int type, magnification factor 1, 6
- start_x - int type, starting X coordinate for QR code display (required)
- start_y - int type, starting Y coordinate for QR code display (required)
- Background_color - int type, background color (hexadecimal), default: 0xffffff (white)
- Foreground_color - int type, foreground color (hexadecimal), default: 0x000000 (black)
Application Example
Note: Before using the QR code function, you must initialize the LCD first.
LCD initialization program reference: https://github.com/QuecPython/QuecPython_lib_bundles/tree/master/libraries/LCD
Use QuecPython series development boards and LCD screens to implement QR code display.
import qrcode
qrcode.show("python.quectel.com", 6, 45, 45, 0xffffff, 0x00ff00)
After entering the above code in the QPYcom interactive tool, the QR code will be successfully generated
Scan the generated QR code with a mobile phone to quickly access the QuecPython official website
