Use APKPure App
Get Bluetooth Serial old version APK for Android
Użyj tego, aby przesyłać dane z telefonu do innych urządzeń za pomocą Bluetooth.
Use this to send data from your phone to other devices through bluetooth.
Tested with: Arduino Uno R3 + module bluetooth HC06
NOTE: You have to pair your modules/devices with your phone first!
Tutorial: https://www.youtube.com/watch?v=hcRSkKvne18
Example here: https://goo.gl/xjXr2G
More at: http://www.hoangvancong.com/