Manual button > USB > Simulated keystroke

[Even92LN]

Is there a simple and cheap way to convert a manual buttonpress into a simulated keyboard stroke?

For example a button like this:
https://wiki.brown.edu/confluence/download/attachments/71157145/10-push_button_switch.jpg
-connected to a USB board and translated into a command like [right CTRL] to use as "push to talk".

 

[Even92LN]

I have found the BU0836 joystick controller board that can handle up to 32 buttons or switches:
http://www.leobodnar.com/products/BU0836/
But I actually don't need more than two of the inputs. Does anyone know about a cheaper board with not so many inputs?

My plan is to use a board like this with a free program called 'Joker'. Joker can simulate up to two keyboardstrokes from any joystick buttons.