Air Flow Management

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Purpose:

The purpose of this project was to allow us to run a higher load and the Arduino with the use of only one power supply. In this case we are running a 12v fan. We are continuing with the intention of incorporating our projects in a green house. A proper greenhouse should have its air in constant motion and this project allows us to do just that. The fan changes speeds depending on the temperature to allow for different air flow and to reduce the overall temperature of the green house. 

Procedure:

We started with creating a homemade DC jack the takes the Vin on our board and feeds the power to the Arduino. Next we set up a breadboard that lets us control the fan with the Arduino. We can run this higher load by using a MOSFET. After, we used an LM35DZ to minitor the temperature and used the map function to control the speed of the fan based on the temperature. We calculated the time by using the millis() function in Arduino and dividing it by 1000 to display it in seconds. We calculated the volts being used by using the map function again. To format the serial monitor we used a series of print("\t") and println()'s.

Parts list:

Full Parts List:

RFP30N06 MOSFET

TA350DC Fan

LM35DZ

Diode

Basic Parts list

Pictures:

Breadboard

Arduino

Both

Fan