Hi There, I am working with some IoT related stuffs. Recently, I bought an UDOO NEO(FULL) Board and I tried to use PMS1003(Dust Sensor). The code consists of a function " Serial.find(0x42)". During compilation it shows an error as unambiguous use of "find(int)". I tried the code without this function the program then compiles but it provides an incorrect output. Can anybody please help me to use the find function (or any other solution). Also when I am trying to use softwareserial function, it is showing error. Is there any alternative of softwareserial function exist for udoo neo.