I’ve been exploring controller options and I can’t seem to find what I’m looking for. I want to offload the work of driving my 128x64 matrix from the main cpu/mcu by dumping frame buffers via UART or SPI to a controller and let that controller refresh the matrix. I’ve seen it done with FPGA’s a few times (such a https://www.open-electronics.org/a-fpga-controlled-rgb-led-matrix-for-incredible-effects-the-hardware/). SmartMatrix and shields look like a good starting point but I want it much cheaper for mass production.
Has anyone already done this?
What would be the most effective MCU for hosting this setup? Teensy (a bit expensive), esp32 (can it handle the work?)