4 bit decoder (binary to decimal - 2 digit)

Help me please!
What is the problem?
(the code unfinised)
Circuit in simulIDE (Linux version)

Hi Stewet,

You must put bias resistors to GND on the switches, then follow the logic of your program, but do not forget to explain your proyect a little next time.

NB: It is useful that you send in your post the scheme and the program in a ZIP file to avoid to do it on our part, this facilitates the dynamic of the posts.

Good luck.

Dear Defran!

Thanks for repply.

Virtual decoder

I would like to implement this project with ARDUINO.

Fine, it is a nice proyect. Good luck.