Using Arduino 1.8.8 or later on macOS and a feather M0 wifi the only firmware available via the wifi101 updater is 19.4.4. downgrading to Arduino 1.8.7 correctly allows the selection of winc1501 Model B (19.5.4)... I also notice that the enumeration for the serial port changes from a generic usb-serial controller to Feather M0.
Hello,
Using Arduino 1.8.8 or later on macOS and a feather M0 wifi the only firmware available via the wifi101 updater is 19.4.4. downgrading to Arduino 1.8.7 correctly allows the selection of winc1501 Model B (19.5.4)... I also notice that the enumeration for the serial port changes from a generic usb-serial controller to Feather M0.
The info for the feather is here https://learn.adafruit.com/adafruit-feather-m0-wifi-atwinc1500/updating-firmware
Jeff