I have a 2 digit multi-segment LED labeled IEE3785R 8504 3
that I'd like to get working with my Arduino.
Unfortunately when I google, I'm not finding a data sheet for it.
Are pointers to same (or just the pin outs) would be much
I'm going to assume that it's a common-cathode pair. I'm not too great with these displays yet, but if you could take a picture of the bottom that might help some.
What I would do, is get a resistor, I'd say 1k just to be good. Connect the ground of the Arduino to a probe, use a jumper wire, and one to the 5v, and start probing. Put 5v with the 1k resistor on a pin, and the ground on another pin. The ground (IF its a common cathode) once you find it, just keep the ground there, and start probing with the 5v!
It looks like it may be bottom pins = left digit, top pins right digit? Again, hard to tell! Wish I could be more help, but best of luck!:D
Here's a picture of the bottom:
I think pin 1 is the one closest to the bottom of the .jpg
(because of the location of the two decimal points). It's
just working out which are the two cathodes.
You're right, I should probably just start probing away.
A google search for "IEE3785R" returns a link to a datasheet on the very first page.
Can you be a bit more specific?
I’ve followed many of those search results, but I never have
gotten to a PDF (or whatever) for a data sheet.
I like using octopart for these types of searchs.
Unfortunately I was only able to get IEE378 to come up.