XIAO Scan Wifi Network

[msfujino]

The following link may be helpful regarding Serial.print().

XIAO_ESP32C3 Serial.print() excution time depend on serial monitor ON/OFF

There is a large difference in the execution time of Serial.print() depending on whether the serial monitor is turned on/off, and I cannot find the cause. You can check it in the following sketch. Turn on the LED for 10mS for the execution time of Serial.print() + visibility of the LED. When the serial monitor is on, ON 10mS/OFF 100mS is repeated, but when the serial monitor is off, the execution time of Serial.print() becomes 400mS and ON 400mS/OFF 100mS is repeated. Can this phenomenon be re…