LED
LCD
Product Description
The 0.56-inch 4-Digit Common Cathode 7-Segment Display is a bright, highly readable numeric display module engineered for digital clocks, multi-digit counters, frequency meters, and microcontroller instrumentation projects. Featuring four crisp 0.56-inch digits with integrated decimal points and a central colon indicator, this display delivers excellent visibility across rooms or workshop benches while maintaining low power consumption.
Essential for building custom timing devices, frequency counters, multimeters, and numerical readout modules, this multiplexed display module combines clean segment separation with standard pinout compatibility for Arduino, ESP32, and PIC microcontrollers.
🔌 Wiring Tip: This is a common cathode display, meaning all the negative common pins (cathodes) for each of the four digits are tied together separately, while the individual segment lines are shared. To drive all four digits without ghosting or flickering, implement a fast multiplexing routine (scanning digit by digit) with current-limiting resistors on the segment lines.
Technical & Architectural Highlights
High-Contrast Numeric Readout: 0.56-inch tall digits provide clear, distant legibility for 4-digit numerical values, timers, and measurements.
Integrated Decimal Points & Colon: Includes built-in decimal points per digit and a central colon separator ideal for clock applications.
Multiplexed Pin Configuration: Streamlines microcontroller I/O requirements by sharing segment lines across all four digits.
Standard Breadboard Friendly: Clean dual-row pin layout allows easy insertion into prototype boards and custom PCBs.
Technical Specifications
| Parameter | Value / Specification |
| Product Type | 4-Digit 7-Segment Numeric Display |
| Digit Height | 0.56 inches (approx. 14.2 mm) |
| Configuration | Common Cathode (CC) |
| Emitted Color | Bright Red |
| Number of Digits | 4 Digits + Decimal Points & Colon |
| Forward Voltage (Vf) | Approx. 1.8V – 2.2V per segment (Red) |
| Forward Current (If) | Recommended 15mA – 20mA per segment |
Applications
Digital Clocks & Timers: Crafting precision desk clocks, stopwatch counters, and interval timers.
Instrumentation & Test Equipment: Displaying multi-digit voltage, current, frequency, or temperature values on bench meters.
Industrial & Hobbyist Counters: Building piece counters, scoreboards, and sensor readouts.
What’s in the Box
1 x 0.56-inch 4-Digit Common Cathode 7-Segment Display.
All your displays, microcontrollers, and electronic components are available with fast shipping across Egypt from Pro Tronix!
