We want to use four 7-Segments ... cathode LCD display devices, 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 ...

This is a simple 0 to 9 counter circuit constructed using Arduino! Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) allows push ...

The original display doesn’t show some of the finer details so well, so [Michael] elected to improve on that when he installed a new 2.2″ graphical LCD to replace the basic 7-segment LCD that ...