what does mean about battery_level in event log

Question

I got a event log information

I/battery_level( 1147): [0,3200,420]

I look up event-log-tags and find:

2722 battery_level (level|1|6),(voltage|1|1),(temperature|1|1)

I find the follow information in the file for the format.

Optionally, after the tag names can be put a description for the value(s) of the tag.

Description are in the format

(<name>|data type[|data unit])

Multiple values are separated by commas.

The data type is a number from the following values:

1: int

2: long

3: string

4: list

The data unit is a number taken from the following list:

1: Number of objects

2: Number of bytes

3: Number of milliseconds

4: Number of allocations

5: Id

6: Percent

So my question is who know the means about the temperature value and explain to me the real information?

Form my log information, we know the temperature is a int type and the value is number of objects. I totally miss understand the means about the value, 420. I can assertion 420 isn't Fahrenheit/Celsius temperature.

Answer 1

420 could be anything.

It could be 42.0 F (which seems unlikely)

It could be 42.0 C (which seems likely)

It could be 4.20 F (really unlikely)

It could be 4.20 C (also unlikely)

It could be some kind of scaled factor. For instance a thermistor could respond with values between 0 and 512 over some range of temperatures. For example a zero could be 21 F and 512 could be 154F. Or 512 could mean 38F and 0 could mean 123F.

You can't know without a lot more information from the manufacturer and the software developer. You certainly can't guess.