My current single ESP32 architecture has four devices on a shared SPI interface with one of those being a UART expander to two more interfaces and another to full speed Ethernet. I have four devices on I2C with one of those being a port expander to accommodate at least 8 signals. I have two dedicate...

I am interested in building a board with more interfaces than a single ESP32 can accommodate. I could get there with several fanout devices but that approach seems too complex and difficult to code around. An alternative would be placing two or more ESP32 devices on the same board and using SPI or s...