Cum să utilizați un senzor de curent Allegro ACS758 cu Arduino pentru 50A până la 200A

/*
 * 
 * Arduino Sketch for Allegro ACS758 Current Sensor (Advanced)
 * This sensor can measure current at a range of up to 200A.
 * It operates with 3.3V or 5V.
 * Please watch the video instruction and explanation for this code.
 * 
 * Written by Ahmad Shamshiri on Saturday, May 27, 2018 at 13:19 in Ajax, Ontario, Canada
 * for Robojax.com
 * View the video instruction at
 * This code has been downloaded from Robojax.com
 */
#define VIN A0 // define the Arduino pin A0 as voltage input (V in)
const float VCC   = 5.0;// supply voltage 5V or 3.3V. If using PCB, set to 5V only.
const int model = 2;   // enter the model (see below)

float cutOffLimit = 1.00;// reading cutoff current. 1.00 is 1 Ampere

/*
          "ACS758LCB-050B",// for model use 0
          "ACS758LCB-050U",// for model use 1
          "ACS758LCB-100B",// for model use 2
          "ACS758LCB-100U",// for model use 3
          "ACS758KCB-150B",// for model use 4
          "ACS758KCB-150U",// for model use 5
          "ACS758ECB-200B",// for model use 6
          "ACS758ECB-200U"// for model use 7   
          // sensitivity array is holding the sensitivity of the ACS758
          // current sensors. Do not change.          
*/
float sensitivity[] ={
          40.0,// for ACS758LCB-050B
          60.0,// for ACS758LCB-050U
          20.0,// for ACS758LCB-100B
          40.0,// for ACS758LCB-100U
          13.3,// for ACS758KCB-150B
          16.7,// for ACS758KCB-150U
          10.0,// for ACS758ECB-200B
          20.0,// for ACS758ECB-200U     
         }; 

/*         
 *   Quiescent output voltage is a factor of VCC that appears at the output       
 *   when the current is zero. 
 *   For bidirectional sensors, it is 0.5 x VCC.
 *   For unidirectional sensors, it is 0.12 x VCC.
 *   For model ACS758LCB-050B, the B at the end represents Bidirectional (polarity doesn't matter).
 *   For model ACS758LCB-100U, the U at the end represents Unidirectional (polarity must match).
 *   Do not change.
 */
float quiescent_Output_voltage [] ={
          0.5,// for ACS758LCB-050B
          0.12,// for ACS758LCB-050U
          0.5,// for ACS758LCB-100B
          0.12,// for ACS758LCB-100U
          0.5,// for ACS758KCB-150B
          0.12,// for ACS758KCB-150U
          0.5,// for ACS758ECB-200B
          0.12,// for ACS758ECB-200U            
          };
const float FACTOR = sensitivity[model]/1000;// set sensitivity for selected model
const float QOV =   quiescent_Output_voltage [model] * VCC;// set quiescent Output voltage for selected model
float voltage;// internal variable for voltage
float cutOff = FACTOR/cutOffLimit;// convert current cut off to mV

void setup() {
    //Robojax.com ACS758 Current Sensor 
    Serial.begin(9600);// initialize serial monitor
    Serial.println("Robojax Tutorial");
    Serial.println("ACS758 Current Sensor");
}

void loop() {
  //Robojax.com ACS758 Current Sensor 
  float voltage_raw =   (5.0 / 1023.0)* analogRead(VIN);// Read the voltage from sensor
  voltage =  voltage_raw - QOV + 0.007 ;// 0.007 is a value to make voltage zero when there is no current
  float current = voltage / FACTOR;
  if(abs(voltage) > cutOff ){
    Serial.print("V: ");
    Serial.print(voltage,3);// print voltage with 3 decimal places
    Serial.print("V, I: ");
    Serial.print(current,2); // print the current with 2 decimal places
    Serial.println("A");
  }else{
    Serial.println("No Current");
  }
  delay(500);
}

/*
 * Arduino Sketch for Allegro ACS758 Current Sensor (Basic Simple)
 * This sensor can measure current at a range of up to 200A.
 * It operates with 3.3V or 5V (the module works with 5V, the sensor can work with 3.3V or 5V).
 * Please watch the video instruction and explanation for this code.
 * 
 * Written by Ahmad Shamshiri on Saturday, May 26, 2018 at 7:05 PM in Ajax, Ontario, Canada
 * for Robojax.com
 * View the video instruction at https://youtu.be/SiHfjzcqnU4
 * This code has been downloaded from Robojax.com
 */
#define VIN A0
const float vcc    = 5.00;// supply voltage 5V or 3.3V
const float factor = 0.02;// 20mV/A is the factor

float voltage;

void setup() {
    //Robojax.com ACS758 Current Sensor 
    Serial.begin(9600);
    Serial.println("Robojax Tutorial");
    Serial.println("ACS758 Current Tester");
    Serial.println("Basic Simple Code");
}

void loop() {
  //Robojax.com ACS758 Current Sensor 
  voltage =   (5.0 / 1023.0)* analogRead(VIN);// Read the voltage from sensor
  voltage =  voltage - (vcc * 0.5) + 0.007 ;// 0.007 is a value to make voltage zero when there is no current
  float current = voltage / factor;
  Serial.print("V: ");
  Serial.print(voltage,3);
  Serial.print("V, I: ");
  Serial.print(current,2); Serial.println("A");
  delay(500);
}

/*
 * 
 * Arduino Sketch for 4 modules Allegro ACS758 Current Sensor (Advanced)
 * This sensor can measure current at a range of up to 200A.
 * It operates with 3.3V or 5V.
 * Please watch the video instruction and explanation for this code.
 * 
 * Written by Ahmad Shamshiri on August 4, 2018 at 13:19 in Ajax, Ontario, Canada
 * for Robojax.com in request from Ross M. from YouTube video https://youtu.be/SiHfjzcqnU4 
 * View the video instruction at
 * This code has been downloaded from Robojax.com
 */
#define VIN1 A0 // define the Arduino pin A0 as voltage input (V in)
#define VIN2 A1 
#define VIN3 A2 
#define VIN4 A3 

const float VCC   = 5.0;// supply voltage 5V or 3.3V. If using PCB, set to 5V only.
const int model = 2;   // enter the model (see below)

float cutOffLimit = 1.00;// reading cutoff current. 1.00 is 1 Amper

/*
          "ACS758LCB-050B",// for model use 0
          "ACS758LCB-050U",// for model use 1
          "ACS758LCB-100B",// for model use 2
          "ACS758LCB-100U",// for model use 3
          "ACS758KCB-150B",// for model use 4
          "ACS758KCB-150U",// for model use 5
          "ACS758ECB-200B",// for model use 6
          "ACS758ECB-200U"// for model use 7   
sensitivity array is holding the sensitivity of the ACS758
current sensors. Do not change.          
*/
float sensitivity[] ={
          40.0,// for ACS758LCB-050B
          60.0,// for ACS758LCB-050U
          20.0,// for ACS758LCB-100B
          40.0,// for ACS758LCB-100U
          13.3,// for ACS758KCB-150B
          16.7,// for ACS758KCB-150U
          10.0,// for ACS758ECB-200B
          20.0,// for ACS758ECB-200U     
         }; 

/*         
 *   Quiescent output voltage is a factor of VCC that appears at the output       
 *   when the current is zero. 
 *   For bidirectional sensors it is 0.5 x VCC
 *   For unidirectional sensors it is 0.12 x VCC
 *   For model ACS758LCB-050B, the B at the end represents bidirectional (polarity doesn't matter).
 *   For model ACS758LCB-100U, the U at the end represents unidirectional (polarity must match).
 *   Do not change.
 */
float quiescent_Output_voltage [] ={
          0.5,// for ACS758LCB-050B
          0.12,// for ACS758LCB-050U
          0.5,// for ACS758LCB-100B
          0.12,// for ACS758LCB-100U
          0.5,// for ACS758KCB-150B
          0.12,// for ACS758KCB-150U
          0.5,// for ACS758ECB-200B
          0.12,// for ACS758ECB-200U            
          };
const float FACTOR = sensitivity[model]/1000;// set sensitivity for selected model
const float QOV =   quiescent_Output_voltage [model] * VCC;// set quiescent Output voltage for selected model
float voltage1;// internal variable for voltage1
float voltage2;// internal variable for voltage2
float voltage3;// internal variable for voltage3
float voltage4;// internal variable for voltage4

float cutOff = FACTOR/cutOffLimit;// convert current cut off to mV

void setup() {
    //Robojax.com ACS758 Current Sensor 
    Serial.begin(9600);// initialize serial monitor
    Serial.println("Robojax Tutorial");
    Serial.println("Four ACS758 Current Sensors");
}

void loop() {
  //Robojax.com ACS758 Current Sensor 
  float voltage_raw1 =   (5.0 / 1023.0)* analogRead(VIN1);// Read the voltage from sensor
  float voltage_raw2 =   (5.0 / 1023.0)* analogRead(VIN2);// Read the voltage from sensor
  float voltage_raw3 =   (5.0 / 1023.0)* analogRead(VIN3);// Read the voltage from sensor
  float voltage_raw4 =   (5.0 / 1023.0)* analogRead(VIN4);// Read the voltage from sensor
  
  voltage1 =  voltage_raw1 - QOV + 0.007 ;// 0.007 is a value to make voltage zero when there is no current
  voltage2 =  voltage_raw2 - QOV + 0.007 ;// 0.007 is a value to make voltage zero when there is no current
  voltage3 =  voltage_raw3 - QOV + 0.007 ;// 0.007 is a value to make voltage zero when there is no current
  voltage4 =  voltage_raw4 - QOV + 0.007 ;// 0.007 is a value to make voltage zero when there is no current
  
  float current1 = voltage1 / FACTOR;
  float current2 = voltage2 / FACTOR;
  float current3 = voltage3 / FACTOR;
  float current4 = voltage4 / FACTOR;
  
  if(abs(voltage1) > cutOff ){ //Corrected abs(voltage) to abs(voltage1)

    Serial.print("I1: ");
    Serial.print(current1,2); // print the current with 2 decimal places
    Serial.println("A");
	
    Serial.print("I2: ");
    Serial.print(current2,2); // print the current with 2 decimal places
    Serial.println("A");

    Serial.print("I3: ");
    Serial.print(current3,2); // print the current with 2 decimal places
    Serial.println("A");
	
    Serial.print("I4: ");
    Serial.print(current4,2); // print the current with 2 decimal places
    Serial.println("A");	
	
  }else{
    Serial.println("No Current");
  }
  delay(500);
}