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Topic: Controlling IKEA's DIODER (Read 10 times) previous topic - next topic

Makkan

I think I'll have leave that to someone else. I haven't really had the time to fiddle with electronics since the birth of my daughter in late december so I'm way to rusty to even start thinking about that.

Good luck!

orbitrek

#21
Jan 10, 2011, 03:12 am Last Edit: Jan 10, 2011, 03:14 am by orbitrek Reason: 1
Hi you all,

I borrow this same thread so the info will stay in one common place.

I'm also gonna light up my dx strips with ULN2003. I was just wondering can I simply connect Arduinos pwm:s to ULN's pins 1...7?
I started to hesitate since I saw this schema
http://amblone.com/guide (scroll down a little bit)
In that example the transistors are feed thru 2200ohm resistors.

Are any resistors needed with the setting with Arduino, ULN2003 and dx LED strips?

And are those dx strips common anode or common cathode?

(I understood strips have internal current limiting resistors)

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