Quote Originally Posted by polyglot View Post
I haven't posted a schematic yet, sorry. However, there is literally nothing to do except connect the Arduino to the LCD and Keypad according to the pin-definitions in the source file.
Perhaps I'm seeing things, but your video seems to show at least two medium sized red capacitors, an outboard chip, the LED display panel, some resistors, a transistor, an IC chip, ribbon cables, and at least a dozen individual wires connecting various things.

Perhaps such complex circuits are obvious to you and "literally nothing", but it certainly seems non-obvious to me.