7 Segment red LED display, common cathode.

7 Segment Red LED Display 

Display numbers clearly and effectively with this compact 7 Segment Red LED Display. Measuring 12.5mm x 17.5mm, it features bright red segments that provide excellent visibility, making it ideal for counters, timers, and digital readouts in both classroom and hobby projects.

Designed in a common cathode configuration, all LED segment cathodes are connected together, allowing straightforward control using microcontrollers such as Arduino and PICAXE. Each segment can be individually driven to display numbers 0–9 and a range of simple characters.

Its compact size and standard pin layout make it easy to integrate into breadboards and PCB designs, supporting students as they explore digital electronics, coding, and display systems.

Key Features:

• Bright red 7 segment LED display
• Display size: 12.5mm x 17.5mm
• Common cathode configuration
• Clear, easy-to-read numeric output
• Suitable for breadboards and PCB mounting
• Compatible with Arduino, PICAXE, and other microcontrollers

Australian Curriculum Links:

• Years 5–8 (Design and Technologies): Develop solutions incorporating electrical components and systems
• Years 7–10 (Digital Technologies): Design and implement digital systems using hardware and software

Classroom & Project Ideas:

• Digital counters and timers
• Scoreboards and simple displays
• Temperature or sensor data readouts
• Stopwatch or reaction timer projects
• Learning binary to decimal conversion