How to receive serial data from arduino using bluetooth?

Question

I am new to Arduino I got 0 knowledge in it and also this is my first time coding with bluetooth, so I wanted to ask how can I actually receive serial data from arduino for example and change the textview in my android:

I want to get this value from arduino and change the textview in my android. So it will be something like if (xxx == "11"){ textview.setBackgroundColor(Color.RED);} but I don't know how to write/how to get the arduino value and declare in android.

Check this : stackoverflow.com/questions/54599490/…

Wise Man
– Wise Man

2019-11-23 15:49:48 +00:00
Commented Nov 23, 2019 at 15:49 — Wise Man
– Wise Man, Commented Nov 23, 2019 at 15:49

Wise Man · Accepted Answer · 2019-11-23 15:57:32Z

1

You'll need a HC-05 bluetooth module for example, and the use of the Serial library. Try to define a new serial port and then send your data by it. Arduino code :

SoftwareSerial btSerial (12, 13); //TX sur 12 et RX sur 13
btSerial.begin(9600);
btSerial.println("Link Started !");

edited Nov 23, 2019 at 15:57

answered Nov 23, 2019 at 15:51

Wise Man

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2 Comments

Wise Man Over a year ago

I'm actually looking for the arduino code I used, wait a sec'.

Wise Man Over a year ago

I did put a link in my first comment under your question, it is written in kotlin and has everything you need.

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