Summary of ELECTRONIC EARRINGS ARE PCB ART YOU CAN WEAR
DIY GUY Chris made LED earrings using PCBs as the jewelry body, each PCB hosting eight WS2812 2020 LEDs driven by an ATtiny13-A microcontroller and supporting components. Each earring is powered by a hidden CR1220 coin cell on the back and is programmed via pogo pins to avoid bulky connectors. The addressable LEDs produce full RGB colors with programmed fades and chase animations.
Parts used in the LED Earrings Project:
- Custom PCB (earring body)
- Eight WS2812 2020 LEDs (per earring)
- ATtiny13-A AVR microcontroller (per earring)
- CR1220 coin cell battery (per earring)
- Battery holder or mounting pad on PCB (for CR1220)
- Pogo pins (for programming)
- Supporting passive components (resistors, capacitors as required)
- PCB earring hardware (posts or holes for wearing)
If there’s one area of the human anatomy we rarely try to draw the eye, it’s the ears. Nonetheless, [DIY GUY Chris] has developed some LED earrings that should do exactly that.
The earrings are made using PCBs as the very body of the jewelry itself. The PCBs for each ear play host to eight WS2812 LEDs in a tiny 2020 form factor. The LEDs get their instructions from an ATtiny13-A AVR microcontroller, with some further supporting hardware to get everything playing happily together. Each earring runs off a single CR1220 coin cell, which sits on the obverse side of the earring to stay out of sight. The earrings are programmed with pogo pins to avoid the need for any bulky connectors.
By virtue of the tiny addressable LEDs, the earrings are capable of displaying full RGB colors. [DIY GUY Chris] has programmed the earrings with simple color fades, as well as some fancier chase animations as well.
We’ve seen some great PCB jewelry before, too. Video after the break.
Source: ELECTRONIC EARRINGS ARE PCB ART YOU CAN WEAR
- What is the main light source used in the earrings?
The earrings use WS2812 addressable LEDs in a 2020 form factor. - What microcontroller controls the LEDs?
An ATtiny13-A AVR microcontroller controls the LEDs. - How are the earrings powered?
Each earring is powered by a single CR1220 coin cell mounted on the back. - How are the earrings programmed without bulky connectors?
They are programmed using pogo pins to avoid bulky connectors. - Can the earrings display multiple colors?
Yes, the WS2812 LEDs enable full RGB color output. - What animations are implemented on the earrings?
The earrings are programmed with simple color fades and chase animations. - Are the LEDs embedded directly into the jewelry?
Yes, the LEDs are soldered onto the custom PCB which serves as the earring body. - Where is the battery placed to stay out of sight?
The CR1220 coin cell sits on the obverse side (back) of the earring to stay out of sight.
