Having seen a number of PCB business cards [Will] decided to go ... [Will] uses a single 7-segment display to scroll through the letters of his name with a state machine that outputs the desired ...

This is a simple 0 to 9 counter circuit constructed using Arduino! Here, a common cathode 7-segment LED display is connected to ... can be used to make numerical digits. Just follow the schematic ...

Output devices such as motors, solenoids, bulbs, buzzers, relays, LEDs, and 7-segment displays are used in many electronic circuits ... controlled by a decade counter IC for accurate counting ...

By combining 49 of them he’s put together a soda bicarb diode steering circuit for a 7-segment display capable ... using a 555 and a 4017B decade counter to make a display count down to 0.