Data sending through UART

Soooo, i managed to make a little test. I wanted to check if i could send data by using PICs16F628A UART module. At first, i did it with only one PIC, by connecting its RX pin with TX, TX stands for transmit and RX stands for receive. I programmed it so that if the button is pressed the PIC would send a signal from TX and if RX received that signal the PIC would turn on a LED, here is the video:

And some photos:

scheme:

Later i made it with two PICs, just in case, i wanted to check if it really works.

and a video:

also a scheme: