Where can I find additional metadata (like units, ranges) about the data?

EmotiBit creates 2 files for every recording session.

1. .csv file - Contains the data in raw format captured by EmotiBit
2. _info.json file - Contains metadata about the recorded data/sensor streams

The _info.json file is a good place to look for additional metadata about the sensors and recorded data. You can find information about the sensor settings like data ranges, units, sampling rates and additional sensor specific information.

You will also find that the _info.json file records the EmotiBit firmware version, hardware version and even the device id to keep track of the source of the data.