Slack-Enabled Office Jumbotron Constructed From 48 LED Panels

After moving into a new office, Phil and company needed to decorate. While a 3D-printed model of their logo or plants (which they seem to have also acquired) would be nice touches, they decided to build a huge LED matrix wall — or a small Jumbotron depending on how you look at it.

The device stands at 2 meters wide by 1.2 meters tall, or 78 by 47 inches if you so prefer. In traditional TV terms, this works out to a 2.33m, or 92-inch diagonal display. Though I’m sure they are out there, try finding a TV that big at your local Best Buy. It uses 48 panels stacked together on a metallic frame, giving it a 384 x 256 resolution. That’s not exactly HD, but when you consider that this is 98,304 individual LEDs being addressed, the scale of the project becomes much more impressive!

What’s also impressive — and a little frightening — is that this monster is powered by three 5V, 60amp transformers. That’s 180 amps for those keeping score at home. Along with electrical power needs, computing power was a challenge as well. A Raspberry Pi 3 was initially pressed into use for control, but once more than ~28 panels were stacked together, performance began to suffer greatly. While one has to wonder how a Pi 4 would fare, they instead turned a professional setup in the form of LED sender and receiver cards.

These cards, a Linsn TS802 sender and Linsn RV908T receiver, are able to handle the setup with no problem, and after some configuration content is now fed to the Jumbotron via a Mac Mini and custom app. This allows it to play a variety of videos, photos, and gifs, and you can even DM it content on Slack if you so choose!

Slack-Enabled Office Jumbotron Constructed From 48 LED Panels was originally published in Hackster Blog on Medium, where people are continuing the conversation by highlighting and responding to this story.

Original article: Slack-Enabled Office Jumbotron Constructed From 48 LED Panels
Author: Jeremy S. Cook