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Topic: Newbie Question - Flashing LED (Read 598 times) previous topic - next topic

Luapno

Apologies if this is a silly question I am very new to this and would like some advice.

I have one of these http://www.maplin.co.uk/52mm-red-led-cluster-12696

I would like to use a 12v input and use a 2 position switch to have the LED on constant or flashing at say 2Hz

Is this something that is easily done using Arduino ?

Please be gentle with me, my knowledge at the moment is basic :P

Boffin1

Its the usual type of thing we all start with when we first get the Arduino ,  in fact the board has a built in LED to practice programs ( called sketches )  on .

Get the board, and work through all the examples, its very rewarding !
With my mobile phone I can call people and talk to them -  how smart can you get ?

Luapno

What would be the best board to start with ?

I have been looking at the Leonardo or uno

Thanks for the quick response

Luapno

My other concern was the size of the LED that I am trying to control, will this cause an issue ?

JimboZA


My other concern was the size of the LED that I am trying to control, will this cause an issue ?


You'll probably need to control it with a transistor as explained here

Do the normal "blink" sketch first, then just extend that thinking to have the Arduino pin switch the transistor, not the LED itself.
No PMs for help please. Not active on this forum any more.

Boffin1

You can also use a ULN2003 to control up to 8 higher power LEDs or relays
With my mobile phone I can call people and talk to them -  how smart can you get ?

fungus


What would be the best board to start with ?

I have been looking at the Leonardo or uno


Uno.
No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

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