Example for the SSD1306 specifically with the Pi Pico or Pi Pico W. Example uses both I2C busses for SSD1306 display plus a temp sensor (or whatever other I2C device someone wants to use). The Picowbell add-on board is necessary for having easy access to Stemma QT modules otherwise you'll end up having to splice wires to access the single 3V3 power pin.
DanH noted that most sensors are 5V compliant and can use the VBUS pin. That might put absolute beginners at risk if a module isn't 5V compliant. As an example script aimed at beginners it's better to be conservative.
Example for the SSD1306 specifically with the Pi Pico or Pi Pico W. Example uses both I2C busses for SSD1306 display plus a temp sensor (or whatever other I2C device someone wants to use). The Picowbell add-on board is necessary for having easy access to Stemma QT modules otherwise you'll end up having to splice wires to access the single 3V3 power pin.
DanH noted that most sensors are 5V compliant and can use the VBUS pin. That might put absolute beginners at risk if a module isn't 5V compliant. As an example script aimed at beginners it's better to be conservative.