The ESP’s extremely flexible hardware peripheral routing matrix allows it to assign the SPI functions to any pins, but the Arduino implementation is preset to a default pinout, so you just need ...

We can’t wait to see what you’ll do with them. Main image remixed from Raspberry Pi 4 GPIO pinout diagram by [Les Pounder].

Despite the differences in size and microcontroller, the Arduino Nano and Micro share some similar pinout configurations ... You'll notice a difference between the SPI and I2C/TWI pins, as ...