ESP32C3 Not Printing to Serial Monitor

[YellowDog]

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WRL-24408 SparkFun Thing Plus - ESP32-S3 NO Serial Output

Hello All, I’ve been programming SparkFun ESP32 products for years and I’m having problems getting Serial to work on this product. I created a basic Serial test with the following code… void setup() { Serial.begin(9600); while(!Serial); Serial.println(“SETUP Complete”); } void loop() { delay(1000); Serial.println(“Loop”); } I am using the board definition in the Arduino IDE (v2.3.4 on Win11) of “SparkFun ESP32-S3 Thing Plus” and it is located on COM6. I have tried several other board definitions but nothing seems to work. I can compile and upload this sketch but there is no output on the IDE Serial Monitor. I have a SparkX ESP32 Thing Plus C and the sketch works just fine. I have closed the IDE and restarted. I have restarted my computer. I have cycled power on the board. I checked Win11 Device Manager to see if there any “Hidden” devices assigned to COM6 and there are none. One thing I did notice is that COM6 of the device is "USB Serial Device (COM6) and the S…