> There's some project based on Javascript (I think) with in-browser previews for the patterns, but it's proprietary and only sold as pre-flashed modules. I for

> There's some project based on Javascript (I think) with in-browser previews for the patterns, but it's proprietary and only sold as pre-flashed modules. I forgot the name, but I think it has been posted here. That would be the PixelBlaze from https://electromage.com/ https://electromage.com/ ... and it's super-duper-amazing for actually finishing LED projects. While the code on the ESP32 is proprietary, everything else is very open and the community is awesome. If your name is Sisyphus or you just want to hack on LED electronics and maybe make some lights blink, anything else is fine.