Serial.readString() returns empty String

[eziya]

Hi,

I used Serial.readString() method to receive string message from string monitor.
but it returns empty string.

#include "Arduino.h"
#include "FreeRTOS_AVR.h"

void setup()
{
	Serial.begin(9600);
	xTaskCreate(vTaskSerial,  NULL, configMINIMAL_STACK_SIZE, NULL, 2, NULL);
	vTaskStartScheduler();

	while(1);
}

void vTaskSerial(void *pvParameters) {

	while(1) {
		if(Serial.available() > 0) {
			Serial.println("Serial is available");
			String msg = Serial.readString();
			Serial.println(msg);
			Serial.println("Message printing ends");
		}

		vTaskDelay(100 / portTICK_PERIOD_MS);
	}
}

void loop() {

}

>>Send to COM3: "hello"<<
Serial is available
 
Message printing ends 

[greiman]

Strings use dynamic memory so probably won't work in a thread.

I think there are other ports of FreeRTOS to Arduino so you might try them.