here is the site where I found them .... Alternate CORE files for Arduino .... but for some reason I put the files in hardware and they are not showing up ?any Help would be great mabe you know something i don't

Does anyone know ..how to grt these boars to work on Arduino ?

bandmwhitt2013 September 3, 2016, 2:39am 5

wowsers here is how to migrate boards

looks a little involved :{