Should you spend some time around the less scientifically informed parts of the internet, it’s easy to find “Free power” stories. Usually they’re some form of perpetual ...

Abstract: This letter presents a novel high-gain four-quadrant analog multiplier using only n-type enhancement indium-gallium–zinc-oxide thin-film-transistors. The proposed circuit improves the gain ...

Abstract: By reducing the sub-gap density of states at the channel, an all solution processed low-voltage organic field-effect transistor (OFET) was realized on a micrometer-thick SU8 gate dielectric ...

Grove LED Bar is comprised of a 10 segment LED gauge bar and an MY9221 LED driver. It can be used as a indicator for remaining battery life, voltage, water level, music volume or other values that ...

When you press the button, the LED matrix displays a dice roll animation and stops on a random number between 1 and 6. Built using SPI communication with the MAX7219 driver.