USBSerial1 Example

usbserial1.ino

void setup() {
    delay(5000); // Give yourself 5 seconds to launch particle serial monitor
    Serial.begin();
    USBSerial1.begin();
    Serial.println("Serial port configured!");
    USBSerial1.println("USBSerial1 configured too!");
    pinMode(D7, OUTPUT);
}

void loop() {
    digitalWrite(D7, HIGH);
    Serial.println("LED on");
    delay(1000);
    digitalWrite(D7, LOW);
    Serial.println("LED off");
    delay(1000);
    USBSerial1.println("Some other random sensor data");
}