NFC Energy-Harvesting Business Card Twenty-one LEDs, no battery, powered by the phone reading it
Finds
- NFC Energy-Harvesting Business Card Twenty-one LEDs, no battery, powered by the phone reading it
- Synth-a-Sette Pocket Analog Synthesizer DIY Kit An analog synth in a cassette shell that plays doorknobs and houseplants
- Theremin Electronic DIY Kit Solder together the one instrument you play without touching it
- Microflow Wire an Arduino by connecting nodes, not writing code