# Gigameter Display Electronics on Thingiverse

**URL:** <https://forum.gbfans.com/t/gigameter-display-electronics-on-thingiverse/18054>\
**Category:** Giga Meters\
**Created:** [December 30, 2015, 9:23pm UTC](https://forum.gbfans.com/t/gigameter-display-electronics-on-thingiverse/18054 "2015-12-30T21:23:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![berk](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/b/7993a0/32.png) [@berk](https://forum.gbfans.com/u/berk)\
**Post date:** [December 30, 2015, 9:23pm UTC](https://forum.gbfans.com/t/gigameter-display-electronics-on-thingiverse/18054/1 "2015-12-30T21:23:00Z")

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I posted this today:

> **[Ghostbuster Gigameter LED display by tgoacher](https://www.thingiverse.com/thing:1235666)**
>
> Code and circuit to drive a common anode (or cathode if you invert the HIGHs to LOWs and vice versa) 3 digit 7 segment LED display for the Ghostbuster Gigameter from an Arduino Nano.Nothing other than power, the Nano and a display are needed.The...

Just the 7 segment LED display at the moment, but code and circuit easily modifiable. I will add the horns/disk LEDs ASAP.

A two Arduino Nano project as it keeps everything so much simpler.

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**Author:** ![sapper36](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/s/58956e/32.png) [@sapper36](https://forum.gbfans.com/u/sapper36)\
**Post date:** [July 18, 2017, 10:01pm UTC](https://forum.gbfans.com/t/gigameter-display-electronics-on-thingiverse/18054/2 "2017-07-18T22:01:26Z")

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New to arduino stuff - how do I invert highs to lows on this wiring or programming?