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+--- Thread: Hoping to create an SPI bus (/showthread.php?tid=7876)
Hoping to create an SPI bus - clarencelocke - 03-26-2025
Would it be possible (by re-flashing the device with ESPHome) to repurpose the GPIO pins used for the RS-485 serial interface and one of the I2C buses to be used instead as an SPI bus?
RE: Hoping to create an SPI bus - admin - 03-26-2025
SPI bus need 3 pins. on board have serial extend port for 2 pins, you also need another free gpio. if you don't use RS485, maybe you need remove the RS485 MAX13487 chip, then will release 2 free gpios.