If you use the Arduino IDE to program the ESP32 ... You simply use one of the additional serial port objects available. However, enabling UART 1 causes the ESP32 to crash! The reason is that ...

It generates the clock, acts like a serial port, acts like a disk drive, and so on. However, the ATMega32 doesn’t directly have Arduino IDE support so you have to install a toolchain for it.

In Arduino environment, it's convenient to access BT SPP like a serial port and react to the command ... python process and Arduino process. So I choose named pipe as a simple way to implement ...