This expansion card will allow you to easily use your Arduino Nano card by "splitting" the pins on 3-pin connectors. Everyone will have the Arduino Nano pin and the power supply and ground, ideal to drive a servo motor or to cable on sensor without necessarily rewiring the power supplies.

It therefore has at its disposal:

• 14 servo motor compatible connectors
• 6 analog connectors (with power supply)
• 1 reset button
• an external power supply socket Vin 7 to 12V
• 4 I2C extension pins
• 4 UART extension pins