Over a year ago, I was describing a project about an On-Screen Display (OSD) based on the RP2040. It was a simple yet effective application that allowed me to display flight telemetry on a screen in real-time. The solution was somewhat limited because it was created out of necessity. I have several RC planes with FPV capabilities. During flights, I wanted information about current position, battery voltage, etc., displayed on the video feedback. All this information was displayed using four lines of text, two at the top and two at the bottom of the screen. Since then, project requirements have evolved, and I needed to add more functionality to keep up with my needs. In the newest update, I’ve focused on enhancing I2C transmission and adding a frame buffer.