Activate a Void Function from MIT App Inventor through bluetooth

How did it go Daniel?

emm i have the problem before, but there is a new problem where the data from mit app inventor that goes to arduino from Serial.read(); if the text is 10, it will read 1 and 0 is there a way i can read it 10 by sending a number not a text to arduino?

I think the issue is that you are reading as a char? You can send integers, floats and bytes but text is most common. It's important that the type from App Inventor is the same as the type expected by the Arduino Script. Experiment!

yea i have try to send1byte using text and number in the variable but still not work

Have you got any other App + Arduino project to work or is this your first?

this is my first on apps

In this Community there are many examples of App Inventor + Bluetooth + Arduino.

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OK, try this basic pair of App + Sketch (App sends to Arduino, Arduino sends to Serial Monitor on PC via USB)

BT_Basic_Setup_Send.aia (8.5 KB)

SendToArduino.txt (810 Bytes)

i guess it different from mine

There are many ways to achieve the same thing. The methods I gave you are simple and effective, but if something fails you need to capture the error message so that we can use that as the first clue to what is wrong.

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