Android Arduino Bluetooth Data Transfer. First of all open the android studio. And lastly we send the data to the android cell phone application.

You can see the full android studio code here. Install and open s2bluetooth application. Also send the temperature value to ble module.
Finally the android must actually send and receive data.
Connect bluetooth of your phone to bluesmirf module. Float temp dhtreadtemperature. Read temperature data if isnan h isnan t serialprintln f failed to read from dht sensor. Android bluetooth chat application tutorialin this video we will learn method of sending and receiving data via bluetooth.