'softReset()' fails to reduce power.

[Tristan-Day]

• Arduino board: ESP32 Lolin D32 Lite
• Arduino IDE version (found in Arduino -> AbouE**t Arduino menu): N/A (PlatformIO Core, version 6.1.13)

Replication:

1. Call 'begin()' with no parameters.
2. Take a measurement.
3. Call 'softReset()'

Outcome:

• The method 'softReset()' returns false.
• Power consumption does not change.

[Tristan-Day]

Update:

By issuing a "general reset" not using BusIO, the command functions as expected. This requires a target address of 0x00, not the sensor address automatically added.

A solution would be to manually pass the Wire interface as an optional argument since a pointer to the interface is not exposed by i2c_dev.

boolean Adafruit_SGP30::softReset(TwoWire* theWire = &Wire) {
  theWire->beginTransmission(0x00);
  theWire->write(0x06);
  return theWire->endTransmission();
}

[caternuson]

Bummer it doesn't just work with the address, even though it goes against the datasheet:

Sounds like you've verified it must done per datasheet.

Have you gone as far as verifying the sensor works OK again after an actual soft reset (using your modified code)?

[Tristan-Day]

Yes, I have it restart every 5m and it seems to work fine after the first few readings.

It seems to read 400 for about 10s but after that I beleive it gives genuine readings.