Turn ON/OFF 8 Relays and 8 Solenoids and measure current with 8 ACS 712 sensors

Projects Programming
1

I am making a rig for cyclic testing of turning solenoids on/off via relays.

I had issues with solenoids not staying off for the amount of time specified in the code. May have been voltage spikes from solenoids. Using diodes solved the issue.

The code for turning the solenoids on and off is working properly.
The code for measuring current is working properly as well.
(Reference: acs712 current sensor 5A - Sensors - Arduino Forum)

When I combine the two codes the measurement of current is not showing up on the serial monitor. Is there something wrong with the void functions I placed in between the delay times?

CODE FOR TURNING ON/OFF 8 RELAYS/8 SOLENOIDS

#include <LiquidCrystal.h>

const int rs = 8, en = 9, d4 = 4, d5 = 5, d6 = 6, d7 = 7;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7); // initialize library and associate LCD pins with Arduino pins

unsigned long TOn = 30000; // delay time to turn relay on/off (60,000 ms = 1 minute)
unsigned long TOff = 10000; 

void setup () {
  lcd.begin(16, 2); // LCD's columns and rows: 16 columns, 2 rows
  lcd.setCursor(0, 0); // Printing position on lcd screen is column 0, row 0
  Serial.begin(9600);

  lcd.print("On:");
  lcd.print(TOn/60000);
  lcd.print("m");
  lcd.print(",");
  lcd.print("Off:");
  lcd.print(TOff/60000);
  lcd.print("m");

  DDRA = B11111111; // set PORTA (digital 22-29) to outputs

  int maxnumber = 5; // set cycle count

  for (int count = 0; count < maxnumber;) //Counter will stop counting after certain amount of cycles
  {
    lcd.setCursor(0, 1); //clears lcd before incrementing to next number
    count++;
    lcd.print("Cycle Count:");
    lcd.print(count);

    PORTA = B00000000;
    delay(TOn); //relay on time
    PORTA = B11111111;
    delay(TOff); //relay off time
  }
  DDRA = B00000000;
}

void loop(void){
}

CODE FOR POWERING SOLENOIDS ON AND OFF AND MEASURING CURRENT SIMULTANEOUSLY.

#include <LiquidCrystal.h>

int mVperAmp = 185; // 185 (5A), 100 (20A), 66 (30A) mvperAmp value used, using ACS712 sensors
const int numReadings = 64;

const int AIN1 = A1;
const int AIN2 = A2;
const int AIN3 = A3;
const int AIN4 = A4;
const int AIN5 = A5;
const int AIN6 = A6;
const int AIN7 = A7;
const int AIN8 = A8;

unsigned int RawValue1 = 0; // can hold up to 64 10-bit A/D readings
unsigned int RawValue2 = 0;
unsigned int RawValue3 = 0;
unsigned int RawValue4 = 0;
unsigned int RawValue5 = 0;
unsigned int RawValue6 = 0;
unsigned int RawValue7 = 0;
unsigned int RawValue8 = 0;

float ACSoffset1 = 2478.006;
float ACSoffset2 = 2497.556;
float ACSoffset3 = 2468.231;
float ACSoffset4 = 2473.118;
float ACSoffset5 = 2487.781;
float ACSoffset6 = 2487.781;
float ACSoffset7 = 2502.444;
float ACSoffset8 = 2487.781;

double Voltage1 = 0;
double Voltage2 = 0;
double Voltage3 = 0;
double Voltage4 = 0;
double Voltage5 = 0;
double Voltage6 = 0;
double Voltage7 = 0;
double Voltage8 = 0;

double Amps1 = 0;
double Amps2 = 0;
double Amps3 = 0;
double Amps4 = 0;
double Amps5 = 0;
double Amps6 = 0;
double Amps7 = 0;
double Amps8 = 0;

const int rs = 8, en = 9, d4 = 4, d5 = 5, d6 = 6, d7 = 7;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7); // initialize library and associate LCD pins with Arduino pins

unsigned long TOn = 10000; // delay time to turn relay on/off (60,000 ms = 1 minute)
unsigned long TOff = 5000; 

void setup () {
  lcd.begin(16, 2); // LCD's columns and rows: 16 columns, 2 rows
  lcd.setCursor(0, 0); // Printing position on lcd screen is column 0, row 0
  Serial.begin(9600);

  lcd.print("On:");
  lcd.print(TOn/60000);
  lcd.print("m");
  lcd.print(",");
  lcd.print("Off:");
  lcd.print(TOff/60000);
  lcd.print("m");

  DDRA = B11111111; // set PORTA (digital 22-29) to outputs

  int maxnumber = 5; // set cycle count

  for (int count = 0; count < maxnumber;) //Counter will stop counting after certain amount of cycles
  {
    lcd.setCursor(0, 1); //clears lcd before incrementing to next number
    count++;
    lcd.print("Cycle Count:");
    lcd.print(count);

    PORTA = B00000000;
    void ReadCurrent();
    delay(TOn); //relay on time
    void ReadCurrent();
    PORTA = B11111111;
    void ReadCurrent();
    delay(TOff); //relay off time
  }
  DDRA = B00000000;
}

void loop(void){
  }

void ReadCurrent()
{
for (int x = 0; x < numReadings; x++) // 64 analogue readings for averaging
  {
    RawValue1 = RawValue1 + analogRead(AIN1); // add each A/D reading to a total
    RawValue2 = RawValue2 + analogRead(AIN2);
    RawValue3 = RawValue3 + analogRead(AIN3);
    RawValue4 = RawValue4 + analogRead(AIN4);
    RawValue5 = RawValue5 + analogRead(AIN5);
    RawValue6 = RawValue6 + analogRead(AIN6);
    RawValue7 = RawValue7 + analogRead(AIN7);
    RawValue8 = RawValue8 + analogRead(AIN8);
  }
  
  Voltage1 = ((RawValue1 / numReadings) / 1023.0) * 5000; // Gets you mV
  Voltage2 = ((RawValue2 / numReadings) / 1023.0) * 5000;
  Voltage3 = ((RawValue3 / numReadings) / 1023.0) * 5000;
  Voltage4 = ((RawValue4 / numReadings) / 1023.0) * 5000;
  Voltage5 = ((RawValue5 / numReadings) / 1023.0) * 5000;
  Voltage6 = ((RawValue6 / numReadings) / 1023.0) * 5000;
  Voltage7 = ((RawValue7 / numReadings) / 1023.0) * 5000;
  Voltage8 = ((RawValue8 / numReadings) / 1023.0) * 5000;
  
  Amps1 = ((Voltage1 - ACSoffset1) / mVperAmp);
  Amps2 = ((Voltage2 - ACSoffset2) / mVperAmp);
  Amps3 = ((Voltage3 - ACSoffset3) / mVperAmp);
  Amps4 = ((Voltage4 - ACSoffset4) / mVperAmp);
  Amps5 = ((Voltage5 - ACSoffset5) / mVperAmp);
  Amps6 = ((Voltage6 - ACSoffset6) / mVperAmp);
  Amps7 = ((Voltage7 - ACSoffset7) / mVperAmp);
  Amps8 = ((Voltage8 - ACSoffset8) / mVperAmp);

  Serial.print("Raw Value 1 = " ); // shows pre-scaled value
  Serial.print(RawValue1 / numReadings);
  Serial.print("\t mV 1 = "); // shows the voltage measured
  Serial.print(Voltage1, 3); // the '3' after voltage allows you to display 3 digits after decimal point
  Serial.print("\t Amps 1 = ");
  Serial.println(Amps1, 3);

  Serial.print("Raw Value 2 = " );
  Serial.print(RawValue2 / numReadings);
  Serial.print("\t mV 2 = ");
  Serial.print(Voltage2, 3);
  Serial.print("\t Amps 2 = "); 
  Serial.println(Amps2, 3);

  Serial.print("Raw Value 3 = " );
  Serial.print(RawValue3 / numReadings);
  Serial.print("\t mV 3 = ");
  Serial.print(Voltage3, 3);
  Serial.print("\t Amps 3 = "); 
  Serial.println(Amps3, 3);

  Serial.print("Raw Value 4 = " );
  Serial.print(RawValue4 / numReadings);
  Serial.print("\t mV 4 = ");
  Serial.print(Voltage4, 3);
  Serial.print("\t Amps 4 = "); 
  Serial.println(Amps4, 3);

  Serial.print("Raw Value 5 = " );
  Serial.print(RawValue5 / numReadings);
  Serial.print("\t mV 5 = ");
  Serial.print(Voltage5, 3);
  Serial.print("\t Amps 5 = "); 
  Serial.println(Amps5, 3);

  Serial.print("Raw Value 6 = " );
  Serial.print(RawValue6 / numReadings);
  Serial.print("\t mV 6 = ");
  Serial.print(Voltage6, 3);
  Serial.print("\t Amps 6 = "); 
  Serial.println(Amps6, 3);

  Serial.print("Raw Value 7 = " );
  Serial.print(RawValue7 / numReadings);
  Serial.print("\t mV 7 = ");
  Serial.print(Voltage7, 3);
  Serial.print("\t Amps 7 = "); 
  Serial.println(Amps7, 3);

  Serial.print("Raw Value 8 = " );
  Serial.print(RawValue8 / numReadings);
  Serial.print("\t mV 8 = ");
  Serial.print(Voltage8, 3);
  Serial.print("\t Amps 8 = "); 
  Serial.println(Amps8, 3);
  
  Serial.println();
  
  RawValue1 = 0; // reset value
  RawValue2 = 0;
  RawValue3 = 0;
  RawValue4 = 0;
  RawValue5 = 0;
  RawValue6 = 0;
  RawValue7 = 0;
  RawValue8 = 0;
  
  delay(3000);
}
2

You are not calling ReadCurrent correctly.
void ReadCurrent();
should be
ReadCurrent();

3

Thanks oh man what a simple mistake.
It's working now.

What if I want it to read current during the delay time?
The solenoids' currents drop over time.
So it would be useful to use it during the delay(TOn) time period.
Problem is I don't know how to apply the ReadCurrent() function in between a delay time.

Based on the code below I'm having it read current as it turns on
and a second before it turns off.

 for (int count = 0; count < maxnumber;) //Counter will stop counting after certain amount of cycles
  {
    lcd.setCursor(0, 1); //clears lcd before incrementing to next number
    count++;
    lcd.print("Cycle Count:");
    lcd.print(count);

    PORTA = B00000000;

    ReadCurrent();

    delay(TOn); //relay on time
    
    ReadCurrent();
    
    PORTA = B11111111;
    
    delay(TOff); //relay off time
  }
4

Okay I got it sorted out..
Just divided up the delay time so I can get readings at 4 instances during the on cycle.

  for (int count = 0; count < maxnumber;) //Counter will stop counting after certain amount of cycles
  {
    lcd.setCursor(0, 1); //clears lcd before incrementing to next number
    count++;
    lcd.print("Cycle Count:");
    lcd.print(count);

    PORTA = B00000000;

    ReadCurrent();

    delay(TOn/4); //relay on time
    
    ReadCurrent();

    delay(TOn/4);

    ReadCurrent();

    delay(TOn/4);

    ReadCurrent();

    delay(TOn/4);

    ReadCurrent();
    
    PORTA = B11111111;
    
    delay(TOff); //relay off time
  }
  DDRA = B00000000;
}