This product was designed by California STEAM.
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The Duonacci Pendant: Where Engineering Meets Elegant Mathematics
Duonacci Pendant: Green and Blue LED Necklace
Sold by California STEAM
$69.00
No tax for United States [change]
Stock available: 29
The Duonacci pendants are an exclusive fusion of technology and art, designed for those who appreciate hidden complexity and dynamic color. As a piece of wearable PCB art, the intricate design is based on the captivating geometry of the Golden Angle and the Fibonacci Numbers, translating nature's own mathematics into a mesmerizing light display. Powered by an energy-efficient microcontroller and a supercapacitor, each pendant is a unique piece of tech-art.
Dynamic Illumination: Bi-Color LEDs and Advanced Modes
The Duonacci pendants feature 103 custom-placed bi-color LEDs (Geen and Blue) that can be mixed to achieve a vibrant spectrum, including beautiful teal and turquoise. This allows for a dazzling, dynamic display of color and customizable patterns, all driven by an AVR32DA48 micro-controller.
Mode Selection and Power Management
A push button on the back of the pendant is used to turn the pendant on/off or select modes. Hold the button for 3 seconds to enter sleep mode and turn the LEDs off.
Clicking the button while the pendant is on cycles through these unique modes:
Demo Mode: Patterns are shown in a fixed, mesmerizing sequence.
Random Mode: Patterns are generated by a random sequence generator.
120 BPM Party Mode: Patterns update randomly at a 120 BPM rate, optimized for House Music.
Portal Mode: Spirals elegantly fade in and out with different color blends.
Fibonacci Sequence Modes (8 & 13): Patterns fixed to specific points of the Fibonacci sequence.
Fibonacci Wave Mode: Spirals cycle dynamically between sequence numbers 13, 34, and 21.
Fireworks Mode: A brilliant, energetic light burst display.
Specifications
Diameter dimension: 40mm (1-1/2")
Weight: 7.2 gram (0.25 oz)
Micro-Controller: AVR32DA48
Capacitor: 90F 4.2V Hybrid Supercapacitor (LIC)
charging time: 6 minutes every 10 hours, or 8 minutes from empty
Run-time: Demo/party modes up to 16 hours, Fireworks mode up to days ...
Powered by Innovation: Hybrid Supercapacitors (LIC)
The Duonacci pendants showcase my expertise in creating energy-efficient LED wearables. By utilizing Hybrid Lithium-Ion Capacitors (LICs) instead of traditional batteries, these pendants are an eco-friendly and high-performance choice.
The LIC Advantage: Safety, Longevity, and Sustainability
Rapid Recharge: Fully charged in just 6 minutes.
Extended Lifespan: 50,000+ cycles without degrading capacity (vastly outperforming LiPo batteries).
Long-lasting Luminescence: Up to 16 hours of dynamic color on a single charge.
Enhanced Safety: LICs are more rugged, do not catch fire or explode, and only vent under extreme stress.
Eco-Friendly: No safety or environmental concerns associated with rechargeable batteries. The entire wearable can be recycled with standard household electronics.
Links to code and documentation
No additional links provided for this product.
Shipping policy
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.
The seller
California STEAM was started in the summer of 2017 in Stockton, CA by Alicia and Sander van de Bor. They added Art to STEM (Science Technology Engineering and Math) to create STEAM.
STEM and STEAM education is a growing necessity to meet the future demands of STEM jobs in the upcoming decades. These jobs are required in almost every field, from manufacturing to medical.
California STEAM develops creative solutions for all ages. Their classes are taught at several locations throughout Stockton (libraries, Mexican Heritage Center etc.)
The products developed by California STEAM are a combination of Art and Technology. These are designed to motivate young makers to get more familiar with electronics and programming. These young makers are the engineers of the future.
STEM and STEAM education is a growing necessity to meet the future demands of STEM jobs in the upcoming decades. These jobs are required in almost every field, from manufacturing to medical.
California STEAM develops creative solutions for all ages. Their classes are taught at several locations throughout Stockton (libraries, Mexican Heritage Center etc.)
The products developed by California STEAM are a combination of Art and Technology. These are designed to motivate young makers to get more familiar with electronics and programming. These young makers are the engineers of the future.