7 Segment Display ( 3D Printable )

7-segment display for 3D printing.

It allows to create 7-segment digits illuminated with an addressable LED strip, so that we only need to occupy one output of the microcontroller. You can group these digits together to create multi-purpose screens.

It is possible to concatenate several digits.

The example in the firmware folder includes routines using up to 4 displays and examples for displaying counters, temperatures and scrolling text messages.

The STL file is included.

The display size of the example is prepared to use LED strips of 144 pixels per meter so that the soldering is minimized by reducing these only to the connections between digits.

Obtain this way a display of 55mm high by 35mm wide.

- 3D printer

- Led strip (144 leds/meter)

- The digits should be covered on the front side with a sheet of translucent material (plastic, paper, masking tape...) to obtain a suitable lighting effect.

If multiple displays are used the access to the digits will be from right to left, i.e. units first. Within each display the order of the segments is as shown in the image below.

https://github.com/inopya/BIG-Digit

If special symbols are used, as in the case of the colon in the clock in the image above, they must be created with pixels from the end of the LED strip, i.e. after the formation of all digits, in order to maintain compatibility with the functions used in the firmware examples.

Added new version of digit (different typography)

More information on the project website

https://github.com/inopya/BIG-Digit