Assistance to developer

This application exclusively for donations if you like my application.Please don't cancel purchase!
If you want, you can uninstall, but not cancel purchase - it will rollback money.
In fact, i have a problems with data protocol of bluetooth low energy on Mi Band. So a can't use all of them functions. Moneys will spend to solve this problem.
Thank you for using my applications.Personally thank you very much to everyone who supported me