What is the error? Because it doesn't show the alert (notification)

MIT App Inventor Help
, ,
1

image
image714×404 28.7 KB

2

Your variable BUTTON_PRESSED never can have the boolean value true, so it just happens nothing after some data has been received

Taifun

3

Screen1.Initialize is a terrible place to ask Bluetooth for data.

It has not yet even connected.

2 Likes
4

which one do I put on?

5

Here is a simple BlueTooth text receiver sample, for single value per line:
blocks
initialize global message to

when Clock1 .Timer do
when Clock1 .Timer do1290×410 59.1 KB

when Screen1 .Initialize do
when Screen1 .Initialize do814×182 22.9 KB

...