Arduino Nano Adapter – with Arduino Nano

Adequate for all Arduino boards that have the Arduino Nano’s pin layout. Power supply with Arduino: 9V.

The following connections can be used:

I²C SCL/ SDA 3,3V and 5V reversable

A0-A3, A6, A7 (analogue in- and outputs) Rx, TX (serial connections)
PD2-PD7 (digital in- and outputs)
MOSI, SCK, B1, SS, MISO, B0 (SPI Serial Peripheral Interface).

Circuitry examples:
7 segment display with Arduino Nano brick: https://www.youtube.com/watch?v=yPccQrCI_uw