PIXO Pixel is a 16 x 16 RGB LED display that runs off of an ESP32.
Find the BOM on FindChips here: https://www.findchips.com/org/10-open-hardware/list/85998-pixo-pixel-esp-board-and-led-board
It is currently a Kickstarter! Go check it out here: https://www.kickstarter.com/projects/idlehandsdev/pixo-pixel-an-esp32-based-iot-rgb-display-for-make