A small project to build an environment logger with a wemos d1 mini IoT board.
With that setup (one point of measuring each 5 minutes), the samsung accumulator lasts for about 10 days.
You can view the current readings here in the countmatic reader
https://countmatic.io/online-reader?token=6e4ed640-036d-4714-b24a-ead2b8f89e27-ro
--- more to come ---