Final day before Christmas! In the last few days, we’ve helped Santa climb the chimney, fly his sleigh, wrap gifts and find out who’s naughty or nice.
To use our last 24 LEDs, let’s wish him luck for his 24-hour delivery, and track his progress around the world.
Ho Ho Ho! The Christmas Spirit is only one potentiometer away with our penultimate hack! Let’s display it with 23 LEDs.
It’s about time you wrap your presents if you haven’t done so already. Christmas is 3 days away! We’ll therefore be using 22 LEDs in a simple memory game related to gift wrapping.
It’s time for Father Christmas to go under intensive training for his big day. Let’s try to get him up the chimney with 21 LEDs.
Today we’re playing with the Twitter API and 20 LEDs, in the form of 2 10-segment bar graph displays! We are going to help Father Christmas figure out if people are being naughty or nice minute by minute.
I know Christmas songs have been playing everywhere for the last 3 months, but I reckon there hasn’t been much singing on 300 LEDs. So, to add 19 LEDs to our counter today, I’m going to make a Christmas song player with spectrum analyser.
To glam up the dinner table on Christmas Eve, today we’ll make a set of 6 napkin holders, using 18 LEDs to represent holly and mistletoe.
“Oh the weather outside is frightful
But the fire is so delightful
And since we’ve no place to go
Get the Arduino, Arduino, Arduino!”
(And 17 LEDs)
I haven’t got a house to decorate so I thought I would put a few LEDs (16, to be exact) on a smaller, edible version!
A step back in time, to your childhood. Today, we’re making play dough! But conductive dough, with 15 LEDs, following the recipe from Technology Will Save Us.
300 LEDs before Xmas 