Adafruit atwinc1500 arduino compatible wifi breakout boards adafruit 2999 the adafruit arduino compatible wifi breakout board uses the excellent atwinc1500 which is 80211bgn compatible adafruit like this chip so much they now use it in all their designs communicate with your microcontroller via spi using only 4 x signals plus 2 x power lines with support for wpa and wpa2 security it also supports tls12 you can attach to an access point or run the board as a soft access point to create