I have an Arduino.
I'm not sure if RX1 and TX0 the same thing as TX and RX? Will there be a difference in the way I program it?
For example, do I treat RX1 and TX0 as RX and TX in the Arduino IDE when coding?
This is the chip I have. On the chip it says "ProMini R160JAC6v" and when I program it, it programs under 5V 16MHz with ATmega 328. Notice RST RX1 and TX0 are on the top left corner.