Overview

Blue light in the morning and red light in the evening can help us adopt a more natural circadian rhythm. Blue light is stimulating and ideal to be exposed to early in the day while the removal of blue light allows melatonin production to ramp up so red light in the evening can help get us ready for bed. The Raspberry Pi is the perfect device to help with the timing and driving of long NeoPixel strips. In this post we will show how just a few wires, some code, and a tiny bit of hardware, we can have a light with some circadian awareness.

Parts

Raspberry Pi 3 - Model B+ - 1.4GHz Cortex-A53 with 1GB RAM

PRODUCT ID: 3775
The Raspberry Pi 3 Model B is the most popular Raspberry Pi computer made, and the Pi Foundation knows you can always make a good thing better! And what could make the Pi 3...
$35.00
OUT OF STOCK

Adafruit NeoPixel Digital RGB LED Strip 144 LED - 1m Black

PRODUCT ID: 1506
We crammed ALL THE NEOPIXELS into this strip! An unbelievable 144 individually-controllable LED pixels on a flexible PCB. It's completely out of control and ready for you to...
$59.95
IN STOCK

Half-size breadboard

PRODUCT ID: 64
This is a cute half size breadboard, good for small projects. It's 2.2" x 3.4" (5.5 cm x 8.5 cm) with a standard double-strip in the middle and two power rails on both...
$5.00
IN STOCK
This guide was first published on Feb 18, 2019. It was last updated on Feb 18, 2019. This page (Overview) was last updated on May 04, 2019.