Recently, we published an entry-level Arduino project with a single seven-segment LED display ... meaning it shares the same anode connection points. And each of the four digits in the module have ...

One more suggestion: if we use an Arduino PWM pin as the common anode pin, we can power on/off the display and change its brightness. If we put in the sockets four 7-segments LED common cathode LCD ...

Conventional batteries have anodes and cathodes, but a new design from the University of Chicago and the University of California San Diego lacks an anode ... idea of a solid cathode and a ...

Each LED anode is tied together on each horizontal layer. Each cathode is tied together on each vertical column. This allows the TinyDuino to control any one LED by knowing which of the 9 columns ...