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

Angled shot of Raspberry Pi 3 - Model B+
NOTE: Due to stock limitations we may only be able to offer refunds or store credit for Pis that are defective, damaged or lost in transit.The Raspberry Pi...
Out of Stock
Adafruit NeoPixel Digital RGB LED Strip wired to a microcontroller, with all the LEDs in a rainbow
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
Angled shot of half-size solderless breadboard with red and black power lines.
This is a cute, half-size breadboard with 400 tie points, good for small projects. It's 3.25" x 2.2" / 8.3cm x 5.5cm with a standard double-strip in the...
$4.95
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 Oct 08, 2021.

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