How do you call a funcion inside a for loop in Arduino? [closed] - function

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I am programming my Arduino Uno with an ultrasonic sensor to sense the distance from it and print that on the serial plotter / monitor, at the same time 4 LEDS are blinking. I am not having any problems with them doing their thing at the same time, but I want the ultrasonic sensor to sense more than one time after the LEDS blink once. Here is the code:
const int red1 = 4;
const int red2 = 5;
const int yellow1 = 6;
const int yellow2 = 7;
const int echo = 10;
const int trig = 9;
const int buzzer = 11;
int maxCmAway = 50;
float duration_us, distance_cm;
void setup() {
Serial.begin (9600);
pinMode(red1, OUTPUT);
pinMode(red2, OUTPUT);
pinMode(yellow1, OUTPUT);
pinMode(yellow2, OUTPUT);
pinMode(trig, OUTPUT);
pinMode(echo, INPUT);
}
void loop() {
digitalWrite(yellow1, LOW);
digitalWrite(yellow2, LOW);
digitalWrite(red1, HIGH);
digitalWrite(red2, HIGH);
for(int i=0; i<6; i++) {
if (checkDist() > maxCmAway) {
blip();
} else {
noTone(buzzer);
delay(250);
}
}
digitalWrite(red1, LOW);
digitalWrite(red2, LOW);
digitalWrite(yellow1, HIGH);
digitalWrite(yellow2, HIGH);
for(int i=0; i<6; i++) {
if (checkDist() > maxCmAway) {
blip();
} else {
noTone(buzzer);
delay(250);
}
}
int checkDist() {
// generate 10-microsecond pulse to TRIG pin
digitalWrite(trig, HIGH);
delayMicroseconds(10);
digitalWrite(trig, LOW);
// measure duration of pulse from ECHO pin
duration_us = pulseIn(echo, HIGH);
// calculate the distance
distance_cm = 0.017 * duration_us;
// print the value to Serial Monitor
if (distance_cm < maxCmAway) {
Serial.print("distance: ");
Serial.print(distance_cm);
Serial.println(" cm");
Serial.print("real: ");
Serial.print(distance_cm);
Serial.println(" cma");
} else {
Serial.println("distance: 0 cm");
Serial.print("real: ");
Serial.print(distance_cm);
Serial.println(" cma");
}
return distance_cm;
}
int blip() {
tone(buzzer, 800);
delay(50);
tone(buzzer, 600);
delay(100);
tone(buzzer, 800);
delay(100);
noTone(buzzer);
return 1;
}
The code that is messing up is after all the digitalWrites in the loop() function in the for loop where it says if (checkDist() > maxCmAway). The error is " 'checkDist' was not declared in this scope " I know what this error means, but I don't know any other way to fix it besides copying and pasting the if statement 5 times.
When I look this up on Google, it just shows a bunch of things about the setup() and loop() functions.
And the other thing I tried is putting the word 'global' before the function I am calling, but 'global' does not look like it is a keyword.
Thanks!

Answer 1

You are missing a closing bracket for void loop()
If you look at the other error messages above "Compilation error", you should see one that says error: expected '}' at end of input. If not, you can go to preferences and enable verbose out for compilation.