Combining an Ohm Meter sketch with Motor Stepper Sketch

Hello everyone!

I’m having trouble combining two different sketches, namely a basic Ohm Meter Sketch and a Motor Stepper Sketch.
The wiring works well when run separately but after merging, only the Stepper works.

Here is my merged sketch code.

Hope someone can take a look and let me know if there is some way of fixing it.

#include <Stepper.h>
/*an exercise in combining code
*/
void setup(){
setupStepper();
setupOhm();
Serial.begin(9600);
}

void loop(){
loopStepper();
loopOhm();
}

//Constants
const int stepsPerRevolution = 200; //Motor steps per rotation
const int revolutions = 6000;
int steps = stepsPerRevolution * revolutions;
const int stepPin = 3; //Step
const int dirPin = 4; //Direction
int stepCount = 0;
int analogPin= 0; //Ohm Meter
int raw= 0; // Raw reading of the voltage divider
int Vin= 5;
float Vout= 0; // reading of the voltage divider
float R1= 10000; // can change to 1K or 100K resistor improve accuracy
float R2= 0; // Resistance of the unknown resistor
float buffer= 0;

void setupStepper(){
//Setup the pins as outputs
pinMode(stepPin,OUTPUT);
pinMode(dirPin,OUTPUT);
}
void loopStepper(){
//Set motor direction clockwise
digitalWrite(dirPin, LOW);

for (int i = 0; i < steps; i++){
digitalWrite(stepPin, HIGH);
delayMicroseconds(2000);
digitalWrite(stepPin, LOW);
delayMicroseconds(2000);
}
}

void setupOhm()
{
Serial.begin(9600);
}

void loopOhm()
{
raw= analogRead(analogPin);
if(raw)
{
buffer= raw * Vin;
Vout= (buffer)/1024.0;
buffer= (Vin/Vout) -1;
R2= R1 * buffer;
Serial.print("Vout: ");
Serial.println(Vout);
Serial.print("Measured Resistance in Ohms: ");
Serial.println(R2);
delay(1000);
}
}

StepperControl_OhmMeter.ino (1.34 KB)

tabby_nyan:
The wiring works well when run separately but after merging, only the Stepper works.

How do you know?

What happens if you comment out the line loopStepper();

Are you aware that the way your code is written all the steps must happen before the function loopOhm() gets called. Is that how you want it to work?

You don't seem to be using the Stepper library so why bother to #include it?

...R
Stepper Motor Basics
Simple Stepper Code