At the beggining, the project looks like this:
I connected the ESP32 with via usb to the computer and then connected the ADXL345 sensor to it.
I want to create a phone application with MIT APP INVENTOR in such a way that the movements of the X, Y, Z axes are recorded in the form of a graph that records the actual sensor vibrations.
I have already created code blocks in MIT APP INVENTOR and code in "Arduino" but then the application I am downloading is not working properly and is not reading any sensor data.
In the photos attached I present the blocks from the MIT APP INVENTOR and the code from "Arduino". Additionally, I add a photo of the readings from the serial port monitor.