I look inside a VGA monitor cable, use a tiny PocketBeagle (a single-board computer in the BeagleBone family) to read the I2C data from an LCD monitor, and
Below is one one of the harnesses I made to plug directly into the J20 connector VGA cable pinout Below is a link to a video I made of shorting the pins and sending the initialization sequence. The second arduino you see in the video sends EDID information to a computer ...
This is a diagram showing how the Mitutoyo cable is wired. There is a red "data" button on the micrometer end of the cable that we were not using in this application, so we decided to use it as a "menu" button. Step 2: Connecting the Cable to the Arduino The Arduino connects to ...