Seven-Segment Displays

Turning binary into digits

An interactive lesson with 6 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

• Seven segments a–g, each driven by a Boolean function of the 4-bit input.
• A decoder turns binary digits into segment patterns.
• Simplifying each segment’s function is classic logic design.

Steps

1. Seven bars make ten digits
2. Lighting a 7
3. Inside the decoder
4. Segment e
5. Counting segments
6. Read the input