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Sensirion / arduino-sps

Arduino library for Sensirion SPS30
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Schematic request #17

Closed dtekluva closed 4 years ago

dtekluva commented 4 years ago

Hello,

I downloaded your library and used it with the sp30 but cannot for some reason get the device running i just get an error saying that "SENSOR PROBING FAILED"

I believe it has something to do with my wiring, i m using

pin 4-SDA and pin 5-SCL and Vdd to Vin of the arduino

for basic testing, i also tried connecting Vdd to 5v of the arduino still to no avail.

Please i would like you help. I bought 2 sensors but i get the same response from both of them. Thanks.

winkj commented 4 years ago

The datasheet for the SPS30 should contain the information about connecting the sensor.

The connections you want to make are: Pin 1 <-> VDD Pin 2 <-> SDA Pin 3 <-> SCL Pin 4 <-> GND Pin 5 <-> GND

Note that pin 4 is selecting the interface type (I2C over UART), so if left floating the SPS30 will not communicate with this library