For the challenge, I wanted to send data from my computer's real serial port (RS232 9-pin connector). For that, I created an adaptor circuit because the voltages on a computer serial port are ...

If you use the Arduino IDE to program the ESP32, you might be interested in [Andreas Spiess’] latest video (see below). In it, he shows an example of using all three ESP32 UARTs from an Arduino ...

The Arduino serial monitor and IDE code uploader share a serial line such that each is disconnected from the serial port while the other needs it. Since this routing mechanism is already in place, it ...