expected primary expression before ')' token

Question

#define ANALOG_IN 0
void setup() {
 Serial.begin(19200);
 analogReference(INTERNAL);
}
void loop() {
 int val = analogRead(ANALOG_IN);
 Serial.print(0xff, byte);
 Serial.print( (val >> 8) & 0xff, byte);
 Serial.print( val & 0xff, byte);
}

This is my code and I'm getting this error for all 3 Serial.print commands. Please help.

• Juraj: if you want to send a byte use Serial.write()

Answer 1

Why are you putting byte there? That isn't in the Serial.print reference page.

This compiles OK:

#define ANALOG_IN 0
void setup() {
 Serial.begin(19200);
 analogReference(INTERNAL);
}
void loop() {
 int val = analogRead(ANALOG_IN);
 Serial.print(0xff);
 Serial.print( (val >> 8) & 0xff);
 Serial.print( val & 0xff);
}