| This electronic earring with a diameter of 31 mm has eight LEDs, a voltage regulator, an MSP430 microcontroller and some passive components....
| This electronic earring with a diameter of 31 mm has eight LEDs, a voltage regulator, an MSP430 microcontroller and some passive components....
| This round earring with a diameter of 31 mm has eight LEDs, a voltage regulator, an MSP430 microcontroller together with some passive compon...