Asked March 9 2012

Community Question

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

laser pointer
March 9 2012
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.
March 10 2012
Use a switching transistor. $3 at Radio Shack. TIP120 Darlington Transistor.
March 10 2012
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,
March 10 2012
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.
March 10 2012
Here's the diagram Bookmaker is talking about.

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