4015 Shift Register Board

The Shift Register Board is a simple kit that lets you get soldering experience while also learning about the 4015 shift register. Instead of having two independent shift registers, the 4015 combines them into a single 8-bit shift register, thus demonstrating how shift registers can be chained together.

The board also integrates buttons for each control input, so that they can be independently tested, and each output of both shift registers has been connected to its own LED in a row, so you can see how data is shifted across. Furthermore, to prevent multiple clock pulses when pushing the clock button, a de-bounce circuit has been included, which ignores sudden multiple presses of the clock button.

Finally, all the input and outputs are passed through to two expander pads on the side of the PCB, allowing for future expansion with other logic boards.