Control of 1.8-inch 7-segment displays with 74HC595

This project allows you to control two 1.8-inch common cathode or common cathode 7-segment displays. It is based on a 74HC595, which controls the display pins from a microcontroller.

The board is designed to accommodate the display on the right side in two possible ways:

A) Rotated display (DA silkscreen)

B) Normal display (DN silkscreen)

The option to rotate a display is to be able to assemble a display with HH:MM format if you want to make a clock.

In the screen printing I made the following mistake; placing DN and DA in reverse on the jumpers SJ(6:9), but it has been corrected with the green colored labels.

There is an option to bridge SJ1, to select whether to use a common anode or common cathode display (AC and DC respectively).

Here are some videos of it working with a common anode display (AC).

You can find the full information on my blog.