PWM Fan Controller - Intro and LM35 Temperature Sensor

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Uploaded by on Apr 9, 2010

Video 1 of 4
http://alan-parekh.com/projects/pwm-fan-controller/
This project will demonstrate how to make a temperature controlled cooling fan for an external hard drive. An LM35 temperature sensor is used to sense the temperature and a PIC 12F675 is used to modulate the fan speed.

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Uploader Comments (abbtech)

  • simplex??? are you a alarm tech? :)

  • @FirstTwan

    I used to work in the Fire Alarm field. Simplex equipment is great stuff.

  • Is that a Technics SA-R230 in the back ground.

  • @syncmaster710n14

    Close it is an R330. Had this thing forever and it is still going strong with almost daily use!

  • Really excellent video, very professional, easy to listen to and understand, and so very useful!

    Thanks so much!

  • @MyRandomReviews

    Thanks for watching!

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All Comments (14)

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  • Very very good job, nice video and presentation. I like the way you explain each step. But i think that we would like to see a basic microcontroller video-tutorial from you. For example how can i make a simple led flasher with a PIC 12F675? Do i have to buy a programmer in order to load my code to the chip? In which programm its easy to write the code etc. It would be really usefull for many of us,

    to have a video explaining the REALLY BASIC ;-) Thank you in advance...!

  • @abbtech Same with my R230

  • @guitarbridgecleaner

    What is the voltage of the fans? If you want to put them in series you will need a power supply that will give you (Fan Voltage X Number of Fans). For example if you have three 12 volt fans you will need a 36 volt power supply. I would suggest just getting a fan voltage that is equal to your power supply and wiring the fans in parallel.

  • Excellent!! Thanks a lot!!! :-)

  • Thank you for this valuable informations

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