What do you do with 144 7-segment displays? If you’re [Frugha] you put them all together to create an epic clock. Each display has 8 ... the clock with a single Arduino Nano.

Sometimes you need to display a number nice and large, making it easily readable at a good distance. [Lewis] has just the thing for that: a big expandable 7-segment display. The build is modular ...

The image shown below indicates the basic wiring diagram of the current limiting resistors and driver transistors. Next is the Hookup diagram of the Arduino 4-Digit 7-segment LED Display, followed by ...

This is what it looks like in action: My model uses the car's OBD-II port to connect to an Arduino microcontroller, which is programmed to display the car's speed on a 7 ... a segment of a wire ...