Class Scd4x

A driver for the part on bus, which has one address. Nothing is sent until init or the first measure.

The 48-bit serial number read at initialization, or null before it.

Asks the part whether a periodic result is waiting, so measure would read at once.

Stops any running measurement, reads the serial number, and starts periodic measurement. Rejects when nothing answers or the serial number fails its checksum.

Waits for the next periodic result and resolves with it, initializing the part first if init has not run.

Runs one on-demand measurement on an SCD41, which takes five seconds. The part must not be measuring periodically: call stop first, or use this in place of init.

Sets the altitude the part corrects its carbon dioxide reading for, in meters.

Sets the temperature offset that compensates the part's own warmth, in millidegrees, until power is lost.

Starts periodic measurement.

Stops periodic measurement, after which the part takes its settings commands.