Hello. In my project, I need to have a wired connection between the phone and the ESP32 microcontroller.
I would like to achieve the same results as if I connect the ESP32 to the PC. When the ESP32 is connected to the PC via the USB, it is recognised as a COM PORT and I can send serial data to my microcontoller via the Terminal and communicate with it without any problems.
On my phone, I have downloaded the following APP : https://play.google.com/store/apps/details?id=de.kai_morich.serial_usb_terminal&hl=en&gl=US
I have connected one end of cable to my phone and the other end of the cable to the ESP32. I have powered up the ESP32 via the external 3.3V. Unfortunately, on the APP, the serial device is not detected.
I would like to know what could be wrong and how to properly do it. Is this possible that both my phone and ESP32 is acting as slave and hence it will not work? How to fix this issue if that is the case?
I would like to achieve the same results as if I connect the ESP32 to the PC. When the ESP32 is connected to the PC via the USB, it is recognised as a COM PORT and I can send serial data to my microcontoller via the Terminal and communicate with it without any problems.
On my phone, I have downloaded the following APP : https://play.google.com/store/apps/details?id=de.kai_morich.serial_usb_terminal&hl=en&gl=US
I have connected one end of cable to my phone and the other end of the cable to the ESP32. I have powered up the ESP32 via the external 3.3V. Unfortunately, on the APP, the serial device is not detected.
I would like to know what could be wrong and how to properly do it. Is this possible that both my phone and ESP32 is acting as slave and hence it will not work? How to fix this issue if that is the case?