This is a random oscillogram from D5 of Arduino Uno. During experiments, I powered my Arduino setup with a Li-ion 9V/600mAh USB battery. Quick note: Arduino UNO has three timers – D5-D6 on Timer 0 ...

Sure, the physical build itself looks great, but it’s what [Michael] did with the firmware that impresses us the most. He’s using an Arduino Mega to drive the 7x7x7 cube and manages to … ...

British couple Lenny and Meriel Lenfesteys use parts from computers and electronics kits to create tiny figures. In this picture, called 9V Tragedy, a pair of LED-headed characters console each ...