LED Testing

[Everseeker]

Here's a question:

Given: a LED array of 25hx200w in a 1.5"x4" holder(Yes, very small LEDs)

Given: The LED Array itself(Board)is not accessible.

I need to send patterns to the array & verify that they are correct (Correctness to the pixel level)

Any thoughts on how to do this? (I am open to anything. Scotch-Taping a couple CCDs over the display and reading them would not be beyond the realm of the possible)

[Ben Hibben]

Are the LEDs individually addressed? Or all chained in one bus?

What sort f test do you have in mind?  Lumens?  Color temp?

Blenster

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[Everseeker]

Hi.

The testing is pretty much On/Off

If pattern X is sent (Say, a box, 10 px per side, UL Vertex at Upper Left Array Origin)

that the pattern is actually displayed.

I'll send some images of the array if needed

Of course, since the board in question has not been released, You need to be killed BEFORE you look at it

(OK, I'll mask out the inconvenient bits 😁 ... spoil sport)

[Ben Hibben]

Can you send different patterns to the LEDs?  Turn them on individually or just in groups?  I have some ideas but I'm curious about how to best automate this.

Blenster