Then, chances are you already know what an Arduino is ... and A5 pins both double as SDA and SCL pins for I2C/TWI communication. However, the Nano offers a slight advantage as it has two more ...

While the pinout is very similar to the Arduino Nano’s, there are four (12-bit) analogue inputs rather than eight (10-bit). Some digital GPIO pins are numbered differently too. A pair of reset ...

Despite the differences in size and microcontroller, the Arduino Nano and Micro share some similar pinout configurations ... a difference between the SPI and I2C/TWI pins, as well.