Hello, I am very new to MIT App Inventor and am trying to send and receive strings to an esp32. I have verified that my esp32 code works, and have determined that the problem is within my App Inventor code. This is what I have for the block functions, any help would be great, thanks!
So you're not interested in the stringValues when you receive from the esp32?
Anyway, export your .aia and post it here, along with the sketch's .ino file.
You are connecting with a specific device - when that device is found, stop scanning.
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I am interested in that as well, but right now I am just debugging the phone to esp32 part of the code.
BLE_Test2.aia (200.4 KB)
sending_code.ino (2.4 KB)
You need this to connect to the proper device.
Use its .Selection
Your ino file has no code at all for either sending or receiving via BLE (and it should be in the loop()). Am I right to assume this is not your own code?
I was able to get it to connect with my device. When I used AI Companion, I was able to connect the ESP32 with my phone. Would I still need this .Afterpicking block if that is the case? Thanks!
How do you know which device your app connected to?