My new development: a mini temperature and humidity sensor with an electronic ink display(ver. nRF52832). Very low power consumption! The prototype is ready, software is testing, the energy consumption tests have been successfully passed.
Very easy to program in Arduino IDE.
A great device for learning nRF52.
I have these devices planned as control devices for heating batteries in every room of my house.
Code for Arduino IDE - https://drive.google.com/file/d/13wmxCt9XehJr1E2eyG1RnYsQTMb9A2LR/view?usp=sharing
(This is a test code that needs to be improved, some functions may not be needed(proposed by NeverDie), something must be transferred from the code to the library. But nevertheless this code is absolutely working. The consumption of the device is minimal. Do not use the standard sleep function from the display library.)
List of components that are present at the sensor:
...I hope this development will deserve your like