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adafruit / Adafruit_SGP30

Arduino library for SGP30
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Unexpected I2C device at 0x00 when this sensor is plugged in #16

Closed ullix closed 4 years ago

ullix commented 4 years ago

I just got the Adafruit_SGP30 sensor, ran the provided test, and it gives the expected output. Good.

But when I scan the I2C bus I see the 0x58 (this sensor, ok), plus other sensors (ok), plus also a "Device" at 0x00. It is present ONLY when the SGP30 is also present, and absent with any of the other 3 sensors.

I think it should not be there? What is this?

ladyada commented 4 years ago

that's an all-call address, its normal