Over the last few days, I have been working on a block diagram to layout the functionality (both essential and additional functions) of Borealis, and from there a circuit schematic was created, and the first MVP (Minimum Viable Product) board designed. I’m about to go full nerd, so bear with me!
It features ten addressable RGB LEDs, with a bluetooth module (4.0 Low Energy, to bend the Aurora Borealis light show to demonstrate an incoming phone notification), and all driven by an Atmel processor. As I wanted to open the door to the hacker and maker community in Borealis, since they could make it do some amazing things, I have also added capability to program the processor over USB (using Arduino with libraries), and that’s why I chose the ATMEGA32U4 to drive Borealis over similar chips, such as the ATMEGA328. It’ll also be powered over a USB Micro port. This can later on be upgraded to Type C as that becomes popular in the mobile market.
Now here’s the cool part. This is the main circuit board so far:
I’d also like to thank Ashlyn Black (blog link, go follow her!) for her invaluable help with power supply design and insight into voltage regulators.
As for the empty space, I might add future functionality there.