Review on Dcorn 12 Inch Small HD Monitor with Built-In Speaker and 1280X720 Resolution at 60Hz - HA82 by Troy Adow

Bought to communicate with Raspberry PI devices. Very nice color image, big enough for basic programming but not suitable for watching videos/movies etc. The screen is too small for this purpose. The screen appears to be set to a base resolution of 1280 x 720, with an additional scaling setting increasing the image size by about 20%. Unfortunately, the control bar at the top of the screen disappears in zoom mode, so the resolution has to be set back to the default value of 1280 x 720. There seems to have been a hidden 640x480 mode that showed up for a few seconds when booting the Raspberry PI. I can't find this option in the controls settings. After a few seconds, the screen reverted to the default 1280x720 resolution. Overall a great monitor for my purposes of microcontroller programming etc.