I'm having a lot of trouble with programming I2C on a breadboard with an ATmega4809 and I want to DIY a I2C hub.
Researching existing boards/projects they look very simple with just a 4 pin input and a number of 4 pin outputs. I get it!
But why not put the 2 pullup resisters on the board as well? Is there something I'm missing?
The links provided are examples of boards I've found while doing my research.