MLX90614 No Response

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lukewarm_h2o
 
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MLX90614 No Response

Post by lukewarm_h2o »

I hooked the MLX90614 up to an Arduino UNO according to the instructions here https://learn.adafruit.com/using-melexi ... g-and-test

However, I am not getting and data back (Just a NACK signal on the 9th bit, basically dead air)

Judging from the signals on my oscilloscope, (see screenshot) the SMBus address and read request is being sent properly, with timing and voltage requirements being satisfied. However, no matter what I try, I'm not getting any response from the sensor.

Any help? Thanks.
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adafruit_support_carter
 
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Re: MLX90614 No Response

Post by adafruit_support_carter »

Does the device address show up in an I2C scan?
https://learn.adafruit.com/scanning-i2c ... es/arduino

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