This uses the I2S Bus in the same way the esp8266ws2812i2s project does. Difference is it cranks the output baud to 80 MHz. We set up DMA buffers and let the CPU fill them as they pass through one line at a time. The DMA interrupt fills in the buffers one word at a time. The I2S bus shifts those buffers out at 80 MHz! You may say "But nyquist says you can't transmit or receive frequencies at more
