How do I fix this error? and what does it mean?
arduino-builder/arduino-builder -compile -core-api-version 10611 -build-path /tmp/969053214 -hardware arduino-builder/hardware -hardware arduino-builder/packages/cores -tools arduino-builder/tools -tools arduino-builder/packages/tools -built-in-libraries arduino-builder/latest -libraries /tmp/907294971/pinned -libraries /tmp/907294971/custom -fqbn arduino:avr:uno -build-cache /tmp -verbose=false /tmp/907294971/sketch_may9a
/tmp/907294971/sketch_may9a/sketch_may9a.ino: In function 'void loop()':
/tmp/907294971/sketch_may9a/sketch_may9a.ino:43:12: error: 'class HardwareSerial' has no member named 'printIn'
/tmp/907294971/sketch_may9a/sketch_may9a.ino:46:12: error: 'class HardwareSerial' has no member named 'printIn'
exit status 1
Here is the coding below:
/*
IR Breakbeam sensor demo!
*/
#define LEDPIN 13
//Pin 13:Arduino has an LED connected on pin 13
//Pin 11:Teensy 2.0 has the LED on pin 11
//Pin 6:Teensy++ 2.0 has the LED on pin 6
//Pin 13:Teensy 3.0 has the LED on pin 13
#define SENSORPIN 4
//variables will change:
int sensorState = 0, lastState=0; //variable for reading the pushbutton status
void setup() {
//initialize the LED pin as an output:
pinMode(LEDPIN, OUTPUT);
//initialize the sensor pin as an input:
pinMode(SENSORPIN, INPUT);
digitalWrite(SENSORPIN, HIGH);//turn on the pullup
Serial.begin(9600);
}
void loop() {
//read the state of the pushbutton value:
sensorState = digitalRead(SENSORPIN);
//check if the sensor bea is broken
//if it is, the sensorState is LOW:
if (sensorState == LOW) {
//turn LED on:
digitalWrite(LEDPIN, HIGH);
}
else {
//turn LED off:
digitalWrite(LEDPIN, LOW);
}
if (sensorState && !lastState) {
Serial.printIn("Unbroken");
}
if (!sensorState && lastState) {
Serial.printIn("Broken");
}
lastState = sensorState;
}