4 Digit 7 Segment 0.56 Inch Red LED Display Module – Common Cathode

The 4 Digit 7 Segment 0.56 Inch Red LED Display Module is a raw four-digit numeric LED display with 12 pins and no onboard driver IC — different from the TM1637 four-digit module that uses a dedicated driver and two-wire interface, this 7 segment led display connects all seven segment lines, the decimal point, and four digit-select lines directly to the microcontroller using multiplexing, where the Arduino cycles through each digit rapidly — activating one at a time at high speed — so all four digits appear simultaneously lit to the eye even though only one is truly active at any instant. This approach teaches the fundamental display multiplexing technique and gives the builder direct segment-level control over every digit.

The 0.56inch 7 segment display draws only 10mA per segment at standard brightness, keeping total current low enough to drive from Arduino GPIO pins with current-limiting resistors. The 12-pin common cathode 7 segment display is compatible with the SevSeg Arduino library, which handles all multiplexing timing automatically — the builder only calls one function with the number to display and the library manages per-digit cycling internally. Each digit position measures 15×14mm, giving the 4 digit 7 segment led display a compact footprint suitable for direct breadboard mounting and PCB integration in project enclosures and instrument panels. Available from StemVolt. This 0.56inch display module is ideal for Arduino ESP32 4-digit counter clock temperature display and STEM project 7-segment raw multiplexed display.

Related Product:

• Checkout 10-Segment Red LED Bar Graph Display

Features:

• 4 digits in one module — no driver IC required
• 12-pin common cathode — 7 shared segments plus 4 digit selects
• Multiplexed display — one digit cycling fast appears all on
• 10mA per segment — low current for direct GPIO driving
• SevSeg library support — handles multiplexing automatically in Arduino code

Technical Specifications:

Applications:

• Arduino 4-digit counter display without TM1637 driver using SevSeg library
• India maker builds raw 7-segment clock learning multiplexing technique
• STEM project for 4 digit 7 segment led display multiplexing demo
• Temperature sensor 4-digit readout on common cathode 7 segment module
• 0.56inch display module for 7-segment multiplexing GPIO

Package Includes:

• 1 × 4 Digit 7 Segment 0.56 Inch Red LED Display Module – Common Cathode