Laser Pointer!!!

 
#1

we can use this right....with a digital port.....on and off correct?


laser pointer

#2

That draws too much current only a regular standard 5mm led can be powered by ezb , get you one of those relay kits for arduino and it will use signal from ezb to trigger on.

#3

but it states it runs on less than 5v......

#4

Volts is not the problem , 25 ma (thats .025 amps) is what ezb is rated for from a single output which is the average led. A laser probably draws between 100 ma - 300 ma maybe more. Just check the current draw on your laser diode and make sure its not more than the servo output current rating. It's in ezb manual.

#5

Use a switching transistor. $3 at Radio Shack. TIP120 Darlington Transistor.

http://www.ez-robot.com/Community/Forum/posts.aspx?threadId=519

#6

how do i use it? the transistor i mean....i would love to add a laser pinter....


this transistor like the infamous hall monitor.....i dont know how to use them,

#7

@hoolagen1,
Go to the URL that Choyster lists. That will tell you how to use the transistor. Also DJ had a really slick jpg of the TIP 120 showing a wireing diagram but I tried going back to get it for you but it had been moved. May be DJ will put it up agian.

#8

Here's the diagram Bookmaker is talking about.


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