A set-and-forget I2C/digital datalogger from Jan on Hackaday.io

micropower micrologger [mPmL]

This is a logical development from my first and second logger projects. The idea is simple: The logger needs to be small enough to fit inside small spaces, e.g. a bee hive.

With the press off a button it starts/stops logging. The casing can be as simple as shrink tubing!