Here is a simple, yet useful circuit of an Arduino 4-digit 7-segment LED display unit. The module used here is a self-contained, compact common-cathode module containing four 7-segment LED numeric ...

Suitable for microcontroller applications, the OEM 4-LED four-digit LED module communicates via a serial interface and employs low-power red LEDs to produce a highly visible display ...

The 4-Digit LED Display RPM comes with a magnetic proximity sensor switch. You can attach it easily to the master display console to count the RPM. ... The minor drift is just that the actual output ...

For those of us who remember LED calculators, the HP 5082-7400 series red “bubble” displays hold a special charm. Available in 3, 4, or 5-digit varieties, these multiplexed 7-segment di… ...

This single digit display is an old edge-lit module that [Ty_Eeberfest] has been working with. The modules were built for General Radio Company and have a really huge PCB to control just one digit.… ...