Hello. I have sensor DFRobot SEN0386. I connected RX to TX and TX to RX on Arduino UNO (1 and 0 ports), also 5v and gnd connected.

The program is:

#include <DFRobot_WT61PC.h>

DFRobot_WT61PC sensor(&Serial); // Use the hardware serial port on Arduino Uno

void setup()
{
Serial.begin(115200);
sensor.modifyFrequency(FREQUENCY_10HZ);
}

void loop()
{
if (sensor.available()) {
Serial.print("Acc\t"); Serial.print(sensor.Acc.X); Serial.print("\t");
Serial.print(sensor.Acc.Y); Serial.print("\t"); Serial.println(sensor.Acc.Z); //acceleration information of X,Y,Z
Serial.print("Gyro\t"); Serial.print(sensor.Gyro.X); Serial.print("\t");
Serial.print(sensor.Gyro.Y); Serial.print("\t"); Serial.println(sensor.Gyro.Z); //angular velocity information of X,Y,Z
Serial.print("Angle\t"); Serial.print(sensor.Angle.X); Serial.print("\t");
Serial.print(sensor.Angle.Y); Serial.print("\t"); Serial.println(sensor.Angle.Z); //angle information of X, Y, Z
Serial.println();
}
}

I don't know what is going on, but I do not see anything on serial monitor.
Do any of you know what may be the problem? Sketch uploads without problems but no data received from sensor