Feather nRF52840 Sense Onboard Actuators

Overview

The Feather nRF52840 Sense has a number of onboard actuators.

LED

Pinout

Blue LED

LED_BLUE or LED_CONN or PIN_LED2, which is defined as digital pin 4.

Also serves as the connectivity status LED.

Red LED

LED_RED or LED_BUILTIN or PIN_LED1, which is defined as digital pin 13.

Code

Arduino

• https://www.arduino.cc/reference/en/language/functions/digital-io/digitalwrite/ (built-in)
• Example: File > Examples > Basics > Blink (replace LED_BUILTIN with GPIO number)

NeoPixel RGB LED

Pinout

PIN_NEOPIXEL, which is defined as digital pin 8.

Code

Arduino

• Library: Sketch > Include Library > Manage Libraries... > Adafruit_NeoPixel > Install
• Example: File > Examples > Adafruit_NeoPixel > ...
• Or nRF52840Sense_NeoPixel.ino

Resources

• https://github.com/adafruit/Adafruit_NeoPixel w/ examples
• https://learn.adafruit.com/adafruit-feather-sense/pinouts#neopixel-and-status-leds-3058306-27