# Using the Interstate 75 with at 32 x 32 LED Matrix **URL:** \ **Category:** Support\ **Created:** [March 28, 2024, 7:01pm UTC](https://forums.pimoroni.com/t/using-the-interstate-75-with-at-32-x-32-led-matrix/24558 "2024-03-28T19:01:31Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Bob\_McGuire](https://avatars.discourse-cdn.com/v4/letter/b/85e7bf/32.png) [@Bob\_McGuire](https://forums.pimoroni.com/u/Bob_McGuire)\ **Post date:** [March 28, 2024, 7:01pm UTC](https://forums.pimoroni.com/t/using-the-interstate-75-with-at-32-x-32-led-matrix/24558/1 "2024-03-28T19:01:31Z")
Hello everyone. My name is Bob McGuire. I’m trying to use the Pimoroni Interstate 75 video Matrix driver circuit board. I’ve connected to a 32 x 32 LED Matrix and I’m getting some weird results. I believe I may need a different driver software or a different software set-up. I will show you the simple program I wrote and the weird results. I seem to get some ghosting of the leds and the current ones do not always illuminate. See the attached information. I would appreciate any help!!! It seems to jump to the wrong LEDs. I suspect it is something in the set-up or the driver. ![ScreenHunter 89](https://us1.discourse-cdn.com/flex016/uploads/pimoroni/original/2X/9/9542342c12d6d1c3769daad5f1253f980ee06b52.jpeg) ---
**Author:** ![alphanumeric](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/alphanumeric/32/2729_2.png) [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)\ **Post date:** [March 28, 2024, 8:17pm UTC](https://forums.pimoroni.com/t/using-the-interstate-75-with-at-32-x-32-led-matrix/24558/2 "2024-03-28T20:17:30Z")
Try `stb_invert=True` and see what happens. ---
**Author:** ![Bob\_McGuire](https://avatars.discourse-cdn.com/v4/letter/b/85e7bf/32.png) [@Bob\_McGuire](https://forums.pimoroni.com/u/Bob_McGuire)\ **Post date:** [March 29, 2024, 4:46pm UTC](https://forums.pimoroni.com/t/using-the-interstate-75-with-at-32-x-32-led-matrix/24558/3 "2024-03-29T16:46:06Z")
Thank you very much. I will give it a try as soon as I have a chance. ---
**Author:** ![alphanumeric](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/alphanumeric/32/2729_2.png) [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)\ **Post date:** [March 29, 2024, 7:40pm UTC](https://forums.pimoroni.com/t/using-the-interstate-75-with-at-32-x-32-led-matrix/24558/4 "2024-03-29T19:40:57Z")
What are you using for a power supply? Voltage and Current rating wise? ---
**Author:** ![Bob\_McGuire](https://avatars.discourse-cdn.com/v4/letter/b/85e7bf/32.png) [@Bob\_McGuire](https://forums.pimoroni.com/u/Bob_McGuire)\ **Post date:** [April 1, 2024, 12:17pm UTC](https://forums.pimoroni.com/t/using-the-interstate-75-with-at-32-x-32-led-matrix/24558/5 "2024-04-01T12:17:45Z")
I tried your suggestion but it made no difference. I’m using a 5 Volt 10 amp supply. ---
**Author:** ![Bob\_McGuire](https://avatars.discourse-cdn.com/v4/letter/b/85e7bf/32.png) [@Bob\_McGuire](https://forums.pimoroni.com/u/Bob_McGuire)\ **Post date:** [April 1, 2024, 12:19pm UTC](https://forums.pimoroni.com/t/using-the-interstate-75-with-at-32-x-32-led-matrix/24558/6 "2024-04-01T12:19:35Z")
When I run this program. ---
**Author:** ![Bob\_McGuire](https://avatars.discourse-cdn.com/v4/letter/b/85e7bf/32.png) [@Bob\_McGuire](https://forums.pimoroni.com/u/Bob_McGuire)\ **Post date:** [April 1, 2024, 12:20pm UTC](https://forums.pimoroni.com/t/using-the-interstate-75-with-at-32-x-32-led-matrix/24558/7 "2024-04-01T12:20:16Z")
![ScreenHunter 93](https://us1.discourse-cdn.com/flex016/uploads/pimoroni/original/2X/f/f3b9652172db4999205b327435c8e73c4066d89f.jpeg) ---
**Author:** ![Bob\_McGuire](https://avatars.discourse-cdn.com/v4/letter/b/85e7bf/32.png) [@Bob\_McGuire](https://forums.pimoroni.com/u/Bob_McGuire)\ **Post date:** [April 1, 2024, 12:22pm UTC](https://forums.pimoroni.com/t/using-the-interstate-75-with-at-32-x-32-led-matrix/24558/8 "2024-04-01T12:22:31Z")
![20240328_144851](https://us1.discourse-cdn.com/flex016/uploads/pimoroni/original/2X/5/50fb33d84ce803340554fc0b639d15734ae690ec.jpeg) I get this result. ---
**Author:** ![Bob\_McGuire](https://avatars.discourse-cdn.com/v4/letter/b/85e7bf/32.png) [@Bob\_McGuire](https://forums.pimoroni.com/u/Bob_McGuire)\ **Post date:** [April 1, 2024, 12:24pm UTC](https://forums.pimoroni.com/t/using-the-interstate-75-with-at-32-x-32-led-matrix/24558/9 "2024-04-01T12:24:14Z")
I’ve tried it with and with out this line: stb\_invert=True It makes no difference. ---
**Author:** ![alphanumeric](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/alphanumeric/32/2729_2.png) [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)\ **Post date:** [April 1, 2024, 1:10pm UTC](https://forums.pimoroni.com/t/using-the-interstate-75-with-at-32-x-32-led-matrix/24558/10 "2024-04-01T13:10:35Z")
Clicking the preformatted test option \ will let you clip and past your code, and not lose the formatting etc. Might be time to contact Pimoroni via e-mail. I’m lost as to why your getting the double text displayed. [Contact Us for Raspberry Pi Technical Support - Pimoroni](https://shop.pimoroni.com/pages/contact-us)