Jul 2026

***** THIS PAGE IS VERY MUCH WIP - PLEASE COME BACK LATER *****

The main difference between the driver we will use here, and the driver we used on the Pico is:

• The GPIO pins you pass into the driver.
• The SPI bus number (Zero uses SPI0 by default).

The Pico we used SPI bus 1

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spi = SPI(1, sck=Pin(10), mosi=Pin(11))
oled = SSD1306_SPI(128, 64, spi, dc=Pin(8), res=Pin(9), cs=Pin(12))

The Pico we used a different set of GPIO pins, so these references have to change on the Zero.

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spi = SPI(0, sck=Pin(2), mosi=Pin(3))
oled = SSD1306_SPI(128, 64, spi, dc=Pin(6), res=Pin(7), cs=Pin(5))

On the Zero, the SPI bus 1 pins are not exposed, so it cannot be used.