/products/raspberry-pi/b/blog/posts/raspberry-pi-3Salutations I am a student at Northern Arizona University, I am currently a participating in a robotics competition. I have a degree in Mechanical engineering and I am currently pursuing a second degree in computer scien...en-USTelligent Community 12https://community.element14.com/products/raspberry-pi/b/blog/posts/raspberry-pi-3Sat, 10 Mar 2018 22:17:38 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:0141d021-0c77-46ea-8d04-cbb6c1c631cdshabaz1<p>Hi Norman,</p><p>&nbsp;</p><p>There isn&#39;t a single source of documentation, but if you let me know what programming language you&#39;re using, and more detail about precisely what you&#39;re looking for, then I can help. Right now I&#39;m confused because I can&#39;t see how Retropie is relevant, nor whether you&#39;re referring to button events from a connected USB or Bluetooth keyboard, or from switches wired to the 40-way GPIO connector.</p><img src="https://community.element14.com/aggbug?PostID=4410&AppID=86&AppType=Weblog&ContentType=0" width="1" height="1">