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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@JumJum
@Jonaswinz
Are you working with something like this https://www.aliexpress.com/item/32653944927.html ?
AFAIK, you would first need a driver for this board before using something like SmartMatrix
For ESP32 there was a solution from ESP_SPRITE, see https://esp32.com/viewtopic.php?f=17&t=3188
I've got it working for Espruino some time ago, see https://github.com/jumjum123/EspruinoExtensions/tree/master/Family/ESP32/LED32x64
Did not follow , but have in mind to need a ESP32 board with PSRAM