7 segment LED Display 3-digit 0.56-inch Common Cathode
3-Digit 7-Segment LED Display (0.56 inch, Common Cathode) is an electronic display module designed for showing numerical values using seven LED segments per digit. It features three digits in a single compact unit and uses the common cathode configuration, where all LED cathodes are internally connected. The display shows numbers from 0 to 9 by activating different segment combinations controlled by a microcontroller or driver IC. It is widely used in digital counters, clocks, meters, and measurement systems due to its simplicity, low power consumption, and high brightness, making it ideal for embedded and DIY electronics projects.
شاشة LED سباعية المقاطع بثلاث خانات (0.56 إنش، كاثود مشترك) هي وحدة عرض إلكترونية مخصصة لعرض الأرقام باستخدام 7 مقاطع LED لكل رقم. تحتوي على ثلاث خانات مدمجة في وحدة واحدة وتعمل بتوصيل الكاثود المشترك حيث يتم ربط جميع الكاثودات داخليًا. تعرض الأرقام من 0 إلى 9 عبر تشغيل مقاطع LED المختلفة بواسطة متحكم دقيق أو دائرة تشغيل. تُستخدم بشكل واسع في الساعات الرقمية وأجهزة القياس والعدادات بسبب بساطتها واستهلاكها المنخفض للطاقة وسطوعها العالي.
The 3-digit 7-segment LED display (0.56-inch, Common Cathode) is a compact numeric display module widely used in electronic circuits for displaying decimal numbers. Each digit consists of seven individual LED segments, which can be selectively activated to form numbers from 0 to 9.
In the common cathode configuration, all cathodes of the LEDs are internally connected and tied to ground, while individual segments are activated by applying a HIGH signal from a driver circuit or microcontroller. This makes it easy to interface with common platforms such as Arduino, ESP32, and other embedded systems.
The module is designed for clear visibility with high brightness red LEDs and a black background for improved contrast. It is commonly used in applications where numeric output is required in a simple and cost-effective manner. Because of its low power consumption and straightforward control logic, it is ideal for both educational and industrial projects.
Specifications
| Parameter | Value |
|---|---|
| Display Type | 7-Segment LED Display |
| Number of Digits | 3 Digits |
| Digit Size | 0.56 inch |
| Configuration | Common Cathode |
| Color | Red |
| LED Segments per Digit | 7 segments + decimal point (optional) |
| Operating Voltage | Typically 2V per LED segment (driven via resistors) |
| Current Consumption | Low power |
| Mounting Type | PCB Mount |
| Display Style | Black face, white segments |
| Control Method | Microcontroller or decoder IC |
| Output Type | Numeric (0–9) |
Applications
- Digital clocks and timers
- Electronic counters
- Voltage and current meters
- Temperature display systems
- Embedded control panels
- DIY electronics projects
- Industrial measurement systems
- Home appliances with digital display
- Calculators and simple computing devices
- Automation and monitoring systems