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Day 13: Lessons – Countdown Clock with 7 Segment Display

You are here: Home / 30 Days to Arduino Programming Course / 30 Days to Arduino Lessons / Day 13: Lessons – Countdown Clock with 7 Segment Display

In this lesson, we look at three of the popular kinds of 4 digit 7 segment displays that you can use with Arduino

  • The kind that takes a whole mess of wires
  • Adafruit I2C display
  • TM1637

We create a countdown timer of the kind you could use for meditation, boiling an egg, or teaching your kid to brush their teeth properly!

Regular Segmented Display

Adafruit Display

TM1637 Display

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