import serial
if name=='main':
ser=serial.Serial('/dev/ttyACM0',9600,timeout=1)
ser.flush()
while True:
if ser.in_waiting>0:
line=ser.readline().decode('utf-8').rstrip()
print(line)



//ARDUINO

void setup()
{
Serial.begin(9600);
}
void loop()
{
Serial.println("Hello From Arduino!");
delay(1000);
}