Introduction - If you have any usage issues, please Google them yourself
Seven segment decoder (1) input to DIN [3 .. 0], the output is a, b, c, d, e, f, g (2) The output of the 0/1, for the switching drive of Overcast level digital pipe or common anode grade digital tube (3) can be displayed not only 0-9, can also display ABCDEF (4) using dynamic scanning respectively 0-9 and ABCDEF, the output should be displayed on the digital.