I’m working on an automated indoor garden which can be controlloed through a mobilephone app via bluetooth. Therfore I use an arduino pro micro with the HC-05 Bluetooth module and the MIT Appinventor.
I start the app, connect to the arduino and everything seems to be fine. But wenn I want to check the temperature inscide the greenhouse, by clicking my Sync Button, the App does not display the current temperature. Instead it displays the temperature from the last synchronization.
So the arduino works fine I think. → It sends the data, if the incoming command provides it.
The blocks from the Appinventor are pictured below.
Would be great if someone can help me with that.