Here, a common cathode 7-segment LED display is connected to Arduino for displaying ... Push Switch (S1) input point is at pin 9 of the Arduino. Connecting the display pins directly to Arduino I/O ...

we should connect the pin 33 of the board (the common pin) to the Arduino GND signal. At this point, all works fine again, the only difference being that every display LED segment is enabled when the ...

I love to read through project suggestions and examples for the Arduino and other platforms ... We are introduced to output using an LED bar graph, a seven-segment display, a speaker, and serial ...

With multi-segment displays ... at least in the Arduino world; the segments need +1.5 volts with reference to the common connection to turn on, and -1.5 volts to turn off. His clever solution ...