Datasheet

Plug in the Feather 32u4 and wait for it to be recognized by the OS (just takes a few seconds). It will create a

serial/COM port, you can now select it from the dropdown, it'll even be 'indicated' as Feather 32u4!

Now load up the Blink example

And click upload! That's it, you will be able to see the LED blink rate change as you adapt the delay() calls.

Manually bootloading

If you ever get in a 'weird' spot with the bootloader, or you have uploaded code that crashes and doesn't auto-reboot

into the bootloader, double-click the RST button to get back into the bootloader. The red LED will pulse, so you know

that its in bootloader mode. Do the reset button double-press right as the Arduino IDE says its attempting to upload the

sketch, when you see the Yellow Arrow lit and the Uploading... text in the status bar.

// the setup function runs once when you press reset or power the board

void setup() {

// initialize digital pin 13 as an output.

pinMode(13, OUTPUT);

}

// the loop function runs over and over again forever

void loop() {

digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level)

delay(1000); // wait for a second

digitalWrite(13, LOW); // turn the LED off by making the voltage LOW

delay(1000); // wait for a second

}

https://learn.adafruit.com/adafruit-feather-32u4-radio-with-rfm69hcw-

module

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