3.2.8 How to use the LED 7 segment decoder
(Binary to hexadecimal decoder and display)
This tool’s function is decoding binary data to hexadecimal data and drive to LED
7 segment for displaying. On this board has 4 units.
At default, the display show “0” because all inputs is pulled-down to ground. It
causes the all inputs receive “0” data.
To use, fed data signal into DCBA inputs and “dp” input, in case wants to use the
dot point of LED 7 segment. For driving the dot-point in LED, connect the positive voltage
(+5V max.) at “dp” point.
Thus, please notice like logic switch and logic monitor. It can connect suddenly,
don’t connect the ground line.