Just from the descriptions and photos, it looks like the mini will be breadboardable.
The bigger one almost certainly not -- it's arduino compatible and the gap on one side is visibly smaller than the other. Also, it's not clear if the big one will have pins dropping down below the board (just looks like female headers).
The bigger one almost certainly not -- it's arduino compatible and the gap on one side is visibly smaller than the other. Also, it's not clear if the big one will have pins dropping down below the board (just looks like female headers).