ESP32 Forum

Hi,

if I don't set any speed, I get only garbage, I tested all the following speeds:

300
600
750
1200
2400
4800
9600
19200
31250
38400
57600
74880
115200
230400
250000
460800
500000
921600
1000000
2000000

Always garbage

But if I explicitly set `Serial.begin(x)` then it works flawless

So, what's the default speed in case I don't see anything?

The boot log runs at 115200, as does the default uart console. Arduino expects to take over the default console when you call Serial.begin. Arduino does not write to the default console, so once you call Serial.begin, a bare print statement will go to /dev/null.