davidkhan:
I have two things:
- Arduino UNO V3
- Two Wire (black and white wire) Fan which i took out from my cooling pad controlled via USB power
Specification on the box of cooling pad:i) Voltage 5V DC
ii) Fan Speed(adjustable) 750-1500rpm
iii) Power Input 2W
iv) Curent: 0.4(MAX)So here are my questions:
Can i connect my fan to my board because it is 5V and arduino can provide 5V
How i will connect two wires of fan with my arduino board
How i will control fan speed
Thanks Arduino.
First answer, no the Arduino can provide the 5v but not the current. (Look up Arduino specs)
Second answer, any output pin that will do PWM and is connected to a motor driver circuit.
Third answer, control using Pulse Width Modulation providing the fan can be run using this method.
Now you have some things to look up.
Daz