45+ Arduino Nano Servo Pins Pics. The nano is inbuilt with the atmega328p microcontroller, same as mentioned earlier, arduino nano has 14 digital i/o pins that can be used either as digital input or output. There is lever on servo that soak the ring in soapwater and place in front of fan.
The shield is needed when the current requirements of the motor being controlled exceed that of the arduino pins (about 20ma).
click the image to enlarge it. The nano has two more analog pins, however. As usual, complete code along with a working video is given at also, four pwm pins are defined for servo motor connections. All servos will be powered with electricity from the wall 5v 5a.the servos wont be on heavy load so it will be enough i think.if any problem occurs i will use 10a.
