It was Aidan’s 10th birthday party on the weekend, so a birthday cake was in order. And what better subject than an Arduino Uno?

This is a 3:1 scale model of an Arduino in vanilla buttermilk sponge, with coloured fondant icing (some dark chocolate was mixed in for the black components), royal icing details, and real (inedible) LEDs. Here it is from a few other angles:

The USB type B socket, power socket, and ATmega328P are all separate blocks of iced cake attached with buttercream. The USB socket needed a couple of toothpicks to hold it in place.

Four LEDs with long wires attached were inserted from the underside of the cake through holes made with chopsticks. These were driven from a real Arduino Uno running a simple program which simulated the flashing of the RX and TX lights during loading, followed by signalling “Happy 10th Birthday Aidan” in Morse code on the pin-13 LED on the board. See the video.

The result was well worth it – one very impressed young man!

Check out some of the other cakes we’ve done.