Draw out all of the digital I/o mouth and analog I/o mouth, every IO mouth has the positive and negative power supply interface standard
Lead the I2C interface on the main board, convenient and connection of the I2C device
Increase the DC power supply interface. The NANO plate on the USB interface power supply current is actual only 50 ma, to bring high current equipment such as steering gear, when I was at this time in DC power supply interface provides an external power supply, ensure the stability of equipment operation.
14 I/O Pin (servo type with GND, power and signal)
8 analog Pin with power output and GND
6 PWM Pin
1 Servo power input
I2C expansion Pin