Does the Arduino Nano provide a Serial2 interface like the Arduino Mega? If so what pins are the Rx/Tx?
Does the Arduino Nano provide a Serial2 interface like the Arduino Mega ? If
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Does the Arduino Nano provide a Serial2 interface like the Arduino Mega? If so what pins are the Rx/Tx?
No. Arduino Nano uses either an ATmega168 or ATmega368 microcontroller, and these only have a single UART. Just like a regular Arduino (Uno or Duemilanove).
They do have both I2C and SPI, which you can use for communicating with another Arduino, and for some applications you can use SoftwareSerial, which allows you to do async serial on any pins, but also uses up a lot of CPU cycles.