Xbee 3 and Arduino Nano on a PCB wireless signal transfer circuit. BUTTON/LDR and relay circuit.

I designed and made a PCB for both the input and output side of the circuit which can fit xbee 3 and arduino nano. The input Xbee sends a signal when arduino receives a high input from either the ldr or the button. The output Xbee receives the signal and sends it to arduino and arduino turns on its assigned output which is a relay in this circuit. The relays output is connected to a LED which is turned on when the relay is turned on.

Please comment if you have any questions or have some feedback to share!