The Yubikey Neo has a whopping 2 ICs on the board. The secure element is around $6 and the microcontroller is almost certainly cheaper than that. http://www.he

The Yubikey Neo has a whopping 2 ICs on the board. The secure element is around $6 and the microcontroller is almost certainly cheaper than that. http://www.hexview.com/~scl/neo/ http://www.hexview.com/~scl/neo/ https://www.avnet.com/shop/apac/products/nxp/a7005cghn1-t1agbel-3074457345633680746/?aka_re=1 https://www.avnet.com/shop/apac/products/nxp/a7005cghn1-t1ag...