I created my project prototype with Arduino Micro and Adafruit Bluetooth low energy device.
Now I need to develop the prototype to production (like a small USB device). I just need Rx, Tx, 3V pin from Arduino Micro.
I started design with ATmega32U4, USB and BLE by using Fritzing IDE. I am confused with Arduino Micro parts like reset, bootloader and other pins. Is there any problem if I leave the unwanted pins from Arduino unconnected, for my project? Will it work correctly like a Arduino micro?
This is my first PCB design. Please help me to design a final PCB with the unwanted pins left unconnected.