Hi all, it is a bit 'that are active in the forum, I would like to ask you a favor. For a university project I have to redesign the 'Arduino one because I used to control the servants of a RC car and I have to compact it to be able to put into the case.
As schematic I used “Arduino ™ ONE Rev 3” that I leave attached, unfortunately I can not understand one of the components present in the schematic. The component is highlighted in red, it seems to me a kind of bridge but can not figure out its purpose. Advice or help are welcome, thank you very much and good day!