LED
LCD
Product Description
The 0.56-inch 3-Digit Common Cathode 7-Segment Display is a bright, highly readable numeric display module engineered for digital clocks, counters, instrument panels, and microcontroller instrumentation projects. Featuring three crisp 0.56-inch digits with integrated decimal points and colon indicators, this display delivers excellent visibility across rooms or workshop benches while maintaining low power consumption.
Essential for building custom timing devices, voltage meters, temperature readouts, and numerical counters, 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 digit are tied together, while the individual segment lines are driven high. To drive multiple digits without ghosting, remember to use multiplexing with current-limiting resistors on the segment or digit lines to protect your microcontroller GPIO pins.
Technical & Architectural Highlights
High-Contrast Numeric Readout: 0.56-inch tall digits provide clear, distant legibility for numerical values and time counters.
Integrated Decimal & Colon Points: Includes built-in decimal points per digit and central colon dots ideal for clock displays.
Multiplexed Pin Configuration: Streamlines microcontroller wiring by sharing segment lines across all three digits.
Standard Breadboard Friendly: Clean row layout allows easy insertion into prototype boards and custom PCBs.
Technical Specifications
| Parameter | Value / Specification |
| Product Type | 3-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 | 3 Digits + Colon / Decimal Indicators |
| Forward Voltage (Vf) | Approx. 1.8V – 2.2V per segment (Red) |
| Forward Current (If) | Recommended 15mA – 20mA per segment |
Applications
Digital Clocks & Timers: Crafting desk clocks, stopwatch counters, and interval countdown timers.
Instrumentation & Test Equipment: Displaying voltage, current, temperature, or RPM measurements on custom bench meters.
Industrial & Hobbyist Counters: Building piece counters, scoreboards, and sensor readouts.
What’s in the Box
1 x 0.56-inch 3-Digit Common Cathode 7-Segment Display.
All your displays, microcontrollers, and electronic components are available with fast shipping across Egypt from Pro Tronix!
