HM330 PM sensor fan not working

[tapio_linkosalo]

Trying to set up the HM330 particle sensor. I managed to get the IIC connection to Arduino, and testing with a match,the sensor reads data. However, the fan is not working. I tap the 5 volts power from outputs of the Arduino (Lilygo T-display S3). Is this OK? How to troubleshoot?

Thx,

-Tapio-

[liaifat85]

@tapio_linkosalo

Trying to set up the HM330 particle sensor. I managed to get the IIC connection to Arduino, and testing with a match,the sensor reads data. However, the fan is not working. I tap the 5 volts power from outputs of the Arduino (Lilygo T-display S3). Is this OK? How to troubleshoot?

The 5V output from your Lilygo T-Display S3 is limited in current capacity. This may not be enough to power both the sensor and the fan.