Arduino Uno DC Motor speed control - 12 volt fan, transistor and diode

Arduino Uno DC Motor - 12 volt fan with use of transistor and diode
All my code & schemes will be available on my Patreon page:
/ 21395131
www.patreon.com/asali
Links:
BC547 transistor: goo.gl/EjLF3S
Arduino Uno Starter Kit (original version)
Affiliate link: amzn.to/2H4femD
Normal link: goo.gl/v4NFAU
Arduino Uno Starter Kit (cheap version)
Affiliate link: amzn.to/2R2a6Uu
Normal link: goo.gl/Z3Ekup
Arduino Uno
Affiliate link: amzn.to/2R47IwA
Normal link: goo.gl/mdSGRH
Credits:
Music:
Classique - Francis Preve
Thumbnail icon:
Fan icon made by www.freepik.com

[@JohnMasseria]

Thank you! 1:42 explains the purpose of using a diode parallel with the fan to prevent any damage from inductive current when disconnecting the battery.

[@jaed9173]

need help sir. how can speed up or slow down a 12v fan using a thermistor.
thank you

[@user-qo8hd1xl5h]

hi i am facing an issue where once connected the motor starts to run on its own and doesnt obey the arduino code. i am using a 12v battery and trying to run a dc motor with ir sensor

[@asieridm3538]

How do you select the value of the resistance in the base?

[@nuralia7143]

can i use this procedure with 2 or 3 motors

[@samchau5163]

sir, why the power supply(9v)can connect to pin emitter after the load?_?

[@bernardo_bejar6389]

can I do this procedure using the 3-6V motor in the Arduino UNO kit?

[@asali-channel]

Yes but you'll have to swap out the battery for another one tho, 9v is too high for a 3-6v motor

[@bernardo_bejar6389]

@@asali-channel So aslong as it doesn't exceed that 3-6V limit?

[@adamfreshwater4540]

I’m using a 12V dc motor. When in the LOW state the motor still runs but slowly. How do I make it stop completely?

[@asali-channel]

Have you copied my schematic? The diode and npn transistor are required to make the 12v dc motor come to a full stop, perhaps your diode is facing the wrong direction. I advise you to watch the video again and follow step by step!

[@technologicindia9737]

Which resistor are u using

[@aldomeza-dev]

Why is the motor connected to positive twice?

[@thomasweyermann5848]

No shit you want us to buy the starter kit, you get a much bigger kickback.

[@adamb8164]

Hi. Good idea and don't work, on video from 0 to 100% and back, going too fast, like as switch on/off, on this project if change arduino code to on/off transistor, you got same effect ;) PC Fan not work with speed control on this project..