Hello,
I purchased the Arduino Starter Kit, and I am a bit confused with the DC Motor that comes with it.
The projects that have the motor all have it connected to a 9v battery pack...
Question: is there any way for me to run this the DC Motor using only the Arduino Uno 5v power?
Thanks!
That's too much for
the arduino pins has a max A capacity of some mA 0.040A if I'm not wrong, if you try to put an supported consumer on the pin you risk to fry it, also check the voltages, check the specifications or datashit of the Arduino and for the motor, you need to check how much is the amperage consummation of the motor without load and under loa, also the voltages etc.... you could use a transistor for bigger current and higher V to use ... 2N3904 or 2N2222 is not bad I suppose or most commonly used, you'll need a common ground also from the arduino to close the circuits and activate the transistor .......
I would suggest following the guides verbatim until you get a good grasp of electronics, unless you are prepared to continuously replace burnt boards.
@Borislav:
The starter Kit contains a L293D, which should be mentioned by the projects using the DC motor, I guess.
Additionally, there are two IRF520 included.
Don't see a public access to the Starter Kit Booklet, so I'm not sure what this proposes or tells about the limits. It should encourage searching and reading data sheets, anyway. 
michael_x:
@Borislav:
The starter Kit contains a L293D, which should be mentioned by the projects using the DC motor, I guess.
Additionally, there are two IRF520 included.Don't see a public access to the Starter Kit Booklet, so I'm not sure what this proposes or tells about the limits. It should encourage searching and reading data sheets, anyway.
Hello,
While the parts come from the kit, the question is really if the DC Motor part can be used without the 9v. Reading through the replies, I am not sure if that has been answered. In fact, I am a bit more confused now...
The reason I ask is because I see this overview and see that it could be possible. Yes, I know they are different parts, but they don't seem that far off. I really want to get this part going without a 9v, but I don't want to hook it up and burn out my board.
Thanks for your help. 
To be direct- NO, you cannot power the motor from the Uno 5V rail. You will burn out the regulator. It is not designed to run motors.
You cannot just assume one part is similar to another just because they look alike. They could have vastly different uses and requirements. Look at the datasheets. See how much current it requires and the voltage rating. It's better you start doing that now then figuring it out later after burning up a lot of boards. It's not hard.
tinman13kup:
To be direct- NO, you cannot power the motor from the Uno 5V rail. You will burn out the regulator. It is not designed to run motors.
Thank you for being direct. This is the answer I was looking for.
tinman13kup:
You cannot just assume one part is similar to another just because they look alike. They could have vastly different uses and requirements.
Yes, I know that there was some difference between the two motors. If I did not, then my board would be burnt out already and I would be asking this forum a totally different question.
tinman13kup:
Look at the datasheets. See how much current it requires and the voltage rating. It's better you start doing that now then figuring it out later after burning up a lot of boards.
Can you perhaps provide some resources or key search words for someone who is wanting to learn more about this? Are there helpful resources I have missed that clearly explain how to read data sheets and voltage ratings? I have not been able to find any.
tinman13kup:
It's not hard.
And lastly, this was not helpful at all. Sure it's not that hard to someone who knows how to do it already. However, I...and I assume many other trying to learn something new...do not find this so easy.
Thank you everyone for your help with this issue.
It's not hard.
It wasn't meant to be a snarky comment, but actually a littoral one. The problem comes in when getting generic items from ebay or alibaba that have no support. For some of it, you can get the current with an ammeter. As for the datasheets, look at the mosfet they gave you, or the transistor. It has a number on it. Google that number with "datasheet". Any decent distributor of parts will have links to the datasheets. Try Adafruit and Sparkfun. Resist the urge to go to Instructables. Too many bad apples there.
From the get-go, you will not understand a lot, and may misunderstand some as well. That's fine. As you start learning, it will fall into place. Ohm's law is also a fundamental thing you need to learn. It will help more than you could know at this point.
: D the arduino has small current and low voltage, the motor needs higher voltage and bigger current : D to provide bigger electricity to the motor you'll need second energy provider or step up voltage regulator but you have current limitations from the arduino, so you'll need to use a second electricity provider like a 2 in parallel 9V batteries for more current on 9V and you'll need a transistor to supply it. for application like this I presuppose that a transistor is better to use than a mosfet or motor driver because of the low values and for the mosfet is a little bit different the for the transistor, check youtube how to connect npn transistor and you can order on 2N3904 from: http://uk.rs-online.com/web/ ; ebey ; local shop ; etc.
maybe you'll need a bigger transistor or a mosfet depending on the requirements of the motor, check the collector-emitter current of the transistor
check this if is helpful for the h-bridge: