{"id":1305,"date":"2018-06-05T12:05:43","date_gmt":"2018-06-05T11:05:43","guid":{"rendered":"https:\/\/ofalcao.pt\/blog\/?p=1305"},"modified":"2018-06-05T12:11:10","modified_gmt":"2018-06-05T11:11:10","slug":"video-wall","status":"publish","type":"post","link":"https:\/\/ofalcao.pt\/blog\/2018\/video-wall","title":{"rendered":"Video Wall"},"content":{"rendered":"
This post is part 4 of 5 of \u00a0LEGO Rock Concert<\/a><\/div>

Xutos’ concert had several projection screens at the background so I want to have at least one small display in the background, above the drum player own stage.<\/p>\n

Outdoors concerts sometimes have a videowall or a projection screen at each side of the stage so also want that.<\/p>\n

First attempt of a videowall was with a NodeMCU (Arduino-like) and a small\u00a0 ST7735S based 128×160 display:<\/p>\n

<\/p>\n

It looks great for using as the right\/left side displays but there’s not enough power for videos, justs static images (but the NodeMCU has enough internal memory to store a few images so some kind of presentation is possible).<\/p>\n

The wiring is SPI so I could use just one NodeMCU to control several displays in parallel (using same Chip Select pin for all) or individually (NodeMCU has a few I\/O pins).\u00a0 I intend to return to this idea later on.<\/p>\n

For a “few” more Euros I got a better display, a 2.4″ 320×240 PiTFT for the Raspberry Pi. It’s just a bit larger so it can still used as side displays.<\/p>\n

I first tried it with a Raspberry Pi 2, installation is pretty forward:<\/p>\n