I've enjoyed your books about other platforms. They are very thorough, the Onion platform would benefit very much. I hope you decide to write this one.
Best posts made by Scott Smith
RE: Determining demand for an Omega and Omega 2 book
RE: Oled Screen
@Boken-Lin, are the red and black connections at the bottom of the diagram correct?
Comparing it to the diagram on the GPIO tool on the Console and the diagram of the Expansion dock, it looks like in this diagram, 2.8V of the Omega (black) is tied to GND of the Oled and GPIO26 of the Omega (red) is tied to 2.5V of the Oled.
The Green, gold and red connections at the top of the diagram make sense, as GPIO20 (I2C_SCL), GPIO21 (I2C_SDA) and 3.3V.