Serial monitor always prints null (macOS)

[wildernessfamily]

@maxgerhardt

#include <Arduino.h>
void setup() {
  Serial.begin(115200);
  Serial.println("Start");
}

void loop() {
  Serial.println("Looping");
  delay(1000);
}

@maxgerhardt First, thank you for taking the time to read my post and responding. I greatly appreciate that! Your solution worked!

I uploaded the simple loop to the ESP32-CAM and reviewed the serial monitor. I still obtained the run on of ‘Nul’. I then reviewed the post you suggested and that was the solution.

I added the following to the platformio.ini:

monitor_rts = 0
monitor_dtr = 0

I then checked the serial monitor, and it worked!!!

I did a little further testing, as the post suggested. I tried different combinations. I found that the solution was indeed the RTS. Adding monitor_rts = 0 to the platformio.ini was the sole solution. I then tried uploading the wifimanager (my original code in my post) and the serial monitor worked!

Again, thank you for taking the time to respond and providing me with the solution. I really appreciate it!