MLX90614 - Bad Unit?

everest

So I just got my latest package from Parallax, and the MLX90614 unit I purchases is kicking out PEC "Fails". . .I can't get anything out of this unit. I dropped in a 10 degree unit I have lying around and it works perfectly. . .drop in this new one. . ."Fail". Any suggestions before I arrange a replacement with Parallax? I actually had the same problem with the first one I bought when it was right out of the box, and it quite magically started working the next day. This is all so confusing [noparse]:([/noparse]

-Jeff

AWarrior

I have the same problem too with the MLX90614, I don't know if the problem is with the newer units. Did you get any answer for that?

ruperthart

Don't forget that you have to run the "set eeprom" program first, since it changes the location of where to read the temp data to $5A, which is then read in the simple demo program.

There are lots of posts of people, who ran the simple program first. But this reqests data from $5A whereas the MLX90614 is factory set for $35, though apparently it will also read from $00.

Everybody is frustrated by this. In reality, the "set eeprom" prigram should have not confused everybody by changing this location, and the simple program should read from the factory-set location.

Worth trying again? Let us know if this does the job.
Regards
Rupert.

JD

Everest,

Please let Technical Support know [noparse][[/noparse] support@parallx.com or 888-997-8267 ] if you have a module that you may think is defective, and we can set up an RMA to test it. However, Ruperthart has a good suggestion; if you do not set the address they will not run properly; all the sample code uses $5A as the desired address to communicate with.

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Respectfully,


Joshua Donelson
www.parallax.com