Dave

Hi Walt, `OSError: [Errno 121] Remote I/O error` relates to I2C device connection. It can be either caused by loose wiring or R/W timing. At first, I thought it might...

Hi Mirko, Regarding your second question, it is in fact the limitation of the sensor. If you refer to the latest datasheet, specifically on page 2 and 6, it states...

It seems both `adafruit_sht4x.SHT4x` and `adafruit_scd30.SCD30` require `I2C` object while the `SPS30` requires optional *I2C bus number* as input. Assuming the SPS30 sensor is connected on bus 1, you may...

Your sensor still functions well, but it seems there is data conversion or perhaps a wiring issue that may cause this problem. About the firmware version upgrade, I have never...

The values are not okay, but I still believe the sensor functions properly. I encountered a similar issue when I converted raw to actual values. I guess that data conversion...

Glad to hear it works now. The result also seems correct if the sensor data reading does not return CRC mismatch. Regarding the status register, it is caused by the...

Hi, I think it won't work because some built-in libraries/ modules used in this code are Python libraries. I'm not quite sure if MicroPython built-in libraries exist in CircuitPython. If...