0.56 inch Red 4 Digit 7 Segment LED Display CA

The 0.56 inch Red 4 Digit 7 Segment LED Display CA shows four red digits, each 0.56 inch (about 14 mm) tall, with a decimal point after every digit. It is a common anode (CA) type with 12 pins: 8 segment pins shared by all digits and 4 digit-select pins, so it is driven by multiplexing from an Arduino or ESP32, or from a display driver chip.

4 Digit 7 Segment LED Display Specifications

• Digits: 4, each with 7 segments and a decimal point
• Digit height: 0.56 inch (about 14 mm)
• Colour: red
• Configuration: common anode (CA)
• Pins: 12 (8 segment pins + 4 digit pins), 2.54 mm pitch
• Segment forward voltage: about 2 V (red LED)

4 Digit 7 Segment LED Display Applications

• Digital clocks and countdown timers
• Counters, scoreboards and frequency displays
• Showing sensor readings such as temperature or voltage
• Learning multiplexing with Arduino in electronics classes

What's in the Box

• 1 × 0.56 inch red 4-digit 7-segment display, common anode

Tip: On a common anode display a segment lights when its pin is pulled LOW, so put a 220 Ω to 330 Ω resistor on each segment pin and switch the 4 digit pins to the positive supply, ideally through PNP transistors. In the SevSeg Arduino library, select COMMON_ANODE.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.