i made bose controller to use with my docing station. Everything works perfect on breadboard (connection below 1st pin is +5V, 2nd is GND, 3rd is Rx, 4th is Tx) - attach 1 (ss.jpg) . Then i created pcb to put all elements on it and unfortunately it doesn’t work - attach 2 (ss2.jpg). There is only diode lit but no communication to microcontroller. I assume that is something wrong with pcb. Could someone take a look and help ?