Cannot get my adafruit MCP9808 to work

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fredericaltorres
 
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Cannot get my adafruit MCP9808 to work

Post by fredericaltorres »

I am using an arduino uno and the adafruit MCP9808 (https://www.adafruit.com/product/1782)
I followed the tutorial
https://learn.adafruit.com/adafruit-mcp ... ide/wiring
which is not very hard.

When calling the method tempsensor.begin() it fails not being able to get the MCP9808_REG_MANUF_ID.
I tested the wiring and the pins soldering is clean.

is there a way to test MCP9808 to make sure it is working?
Or the component came defective or may be I did something during the soldering of the pin.


How can I trouble shoot this?

Thanks

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Franklin97355
 
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Re: Cannot get my adafruit MCP9808 to work

Post by Franklin97355 »

When you run the example code what do you get?

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fredericaltorres
 
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Re: Cannot get my adafruit MCP9808 to work

Post by fredericaltorres »

Every time the library read a value from one of the register of MCP9808 I get the value 65534.

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Franklin97355
 
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Re: Cannot get my adafruit MCP9808 to work

Post by Franklin97355 »

When you run the example code "mcp9808test" what do you get? Could you post the code you are running so we can have a look?

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fredericaltorres
 
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Re: Cannot get my adafruit MCP9808 to work

Post by fredericaltorres »

I am running the exact code from mcp9808test.

I think my MCP9808 is dead, but how can I tell if was shipped broken or may be I destroyed it while soldering.

is it possible to destroy it just by soldering it.

Thanks, Fred.

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Franklin97355
 
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Re: Cannot get my adafruit MCP9808 to work

Post by Franklin97355 »

I am running the exact code from mcp9808test.
What is the output from the serial monitor when you run the code?
I think my MCP9808 is dead, but how can I tell if was shipped broken or may be I destroyed it while soldering.
Could you post clear, detailed pictures of both sides of your board showing any soldering you have done and the connections to it?

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fredericaltorres
 
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Re: Cannot get my adafruit MCP9808 to work

Post by fredericaltorres »

Here are the image of the MCP9808
Image
Image

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Franklin97355
 
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Re: Cannot get my adafruit MCP9808 to work

Post by Franklin97355 »

You need to redo the soldering of the header. Take a look at this Soldering Guide

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fredericaltorres
 
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Re: Cannot get my adafruit MCP9808 to work

Post by fredericaltorres »

Thanks, I just learned how to solder correctly. It is working now.

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