What is it?

Earrings with LED's designed for Saint Patrick's Day. The different patterns are controlled by an ATtiny84a and programmed with the Arduino IDE. These earrings are powered by a CR1225 coin cell battery, and will last at least 3 days, and up to 2 weeks (depending on the pattern). A button on the back of the earring can be used to select different patterns, or to turn off the device.

These earrings can be programmed with the Arduino IDE, using a SPI programmer (for example the Arduino UNO as programmer).

Why did you make it?

Adding some more variances to the LED earring family. The first earrings (Spiral) were such a success, so I used that same concept to light up the leaves on the shamrock. I also fixed some of the issues I noticed on the earlier designs.

What makes it special?

The earrings are entirely assembled by hand. I use a stencil and reflow oven to install the components on the font, the back is done with a soldering iron. The Arduino IDE is used to program the micro-controller. To conserve energy, the ATtiny84a is in sleep mode, 99.9% of the time. It only wakes up to determine which LED should be turned on or off before entering sleep mode again.

See item details for estimated arrival times.

Customs and import taxes:

Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.

Cancellations: not accepted:

Please contact the seller if you have any problems with your order.