This PCB takes 16-bits of cathode inputs (abcdefghkmnprstu
) and 2-bits of anode inputs (A1
, A2
) to display values on one of two 16-segment displays. The 16-segment displays are multiplexed: they share common anode pins and are individually selected through their cathode pins to display data. Current-limiting resistors are included on the board. Note that the decimal points are not connected.
Pinout
![](https://i0.wp.com/doctor-pasquale.com/wp-content/uploads/2022/12/16-segment-pinout.png?resize=650%2C400&ssl=1)
Hardware
This PCB uses a multiplexed 16-segment display and 1 kohm current-limiting resistors.
Schematic
Click for a larger version.
![](https://i0.wp.com/doctor-pasquale.com/wp-content/uploads/2022/12/16-segment-schematic.png?resize=650%2C435&ssl=1)