Automated Dust Collection

gladewater2016: The serial plotter is showing the voltage increases from 3.5 volts to 5 when the tool is turned on. I am using a heat gun to similate a tool being turned on.

Looks threatening ... ;)

/*
 * This code is for the project at 
 * http://www.iliketomakestuff.com/how-to-automate-a-dust-collection-system-arduino
 * All of the components are list on the url above.
 * 
This script was created by Bob Clagett for I Like To Make Stuff
For more projects, check out iliketomakestuff.com

Includes Modified version of "Measuring AC Current Using ACS712"
http://henrysbench.capnfatz.com/henrys-bench/arduino-current-measurements/acs712-arduino-ac-current-tutorial/

Parts of this sketch were taken from the keypad and servo sample sketches that comes with the keypad and servo libraries.

Uses https://github.com/adafruit/Adafruit-PWM-Servo-Driver-Library
*/
#include 
#include 

// called this way, it uses the default address 0x40
Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver();
// you can also call it with a different address you want
//Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver(0x41);

// Depending on your servo make, the pulse width min and max may vary, you 
// want these to be as small/large as possible without hitting the hard stop
// for max range. You'll have to tweak them as necessary to match the servos you
// have!

// our servo # counter
uint8_t servoCount = 6;
uint8_t servonum = 0;

const int OPEN_ALL = 100;
const int CLOSE_ALL = 99;

boolean buttonTriggered = 0;
boolean powerDetected = 0;
boolean collectorIsOn = 0;
int DC_spindown = 3000;

const int NUMBER_OF_TOOLS = 3;
const int NUMBER_OF_GATES = 6;

String tools[NUMBER_OF_TOOLS] = {"Miter Saw","Table Saw","Band Saw"}; //, "Floor Sweep"
int voltSensor[NUMBER_OF_TOOLS] = {A1,A2,A3};
long int voltBaseline[NUMBER_OF_TOOLS] = {0,0,0};

//DC right, Y, miter, bandsaw, saw Y, tablesaw, floor sweep
//Set the throw of each gate separately, if needed
int gateMinMax[NUMBER_OF_GATES][2] = {
  /*open, close*/
  {250,415},//DC right
  {230,405},//Y
  {230,405},//miter
  {285,425},//bandsaw
  {250,405},//saw y
  {250,415},//floor sweep
};

//keep track of gates to be toggled ON/OFF for each tool
int gates[NUMBER_OF_TOOLS][NUMBER_OF_GATES] = {
  {1,0,1,0,0,0},
  {1,1,0,0,1,1},
  {1,1,0,1,0,0},
};

const int dustCollectionRelayPin = 11;
const int manualSwitchPin = 12; //for button activated gate, currently NOT implemented

int mVperAmp = 185; // use 100 for 20A Module and 66 for 30A Module
double ampThreshold = .20;

double Voltage = 0;
double VRMS = 0;
double AmpsRMS = 0;

//button debouncing
int state = HIGH;      // the current state of the output pin
int reading;           // the current reading from the input pin
int previous = LOW;    // the previous reading from the input pin

// the follow variables are long's because the time, measured in miliseconds,
// will quickly become a bigger number than can be stored in an int.
long time = 0;         // the last time the output pin was toggled
long debounce = 200;   // the debounce time, increase if the output flickers

void setup(){ 
  Serial.begin(9600);
  pinMode(dustCollectionRelayPin,OUTPUT);
  pwm.begin();
  pwm.setPWMFreq(60);  // Default is 1000mS
  
 //record baseline sensor settings
 //currently unused, but could be used for voltage comparison if need be.
  delay(1000);
  for(int i=0;i debounce) {
    if (state == HIGH){
      state = LOW;
     buttonTriggered = false;
    } else{
      state = HIGH;
     buttonTriggered = true;
    time = millis();    
    }
  }
  previous = reading;
   Serial.println("----------");
   //loop through tools and check
   int activeTool = 50;// a number that will never happen
   for(int i=0;iampThreshold){
    return true;
   }else{
    return false; 
   }
}
void turnOnDustCollection(){
  Serial.println("turnOnDustCollection");
  digitalWrite(dustCollectionRelayPin,1);
  collectorIsOn = true;
}
void turnOffDustCollection(){
  Serial.println("turnOffDustCollection");
  digitalWrite(dustCollectionRelayPin,0);
  collectorIsOn = false;
}

float getVPP(int sensor)
{
  float result;
  
  int readValue;             //value read from the sensor
  int maxValue = 0;          // store max value here
  int minValue = 1024;          // store min value here
  
   uint32_t start_time = millis();
   while((millis()-start_time) < 500) //sample for 1 Sec
   {
       readValue = analogRead(sensor);
       // see if you have a new maxValue
       if (readValue > maxValue) 
       {
           /*record the maximum sensor value*/
           maxValue = readValue;
       }
       if (readValue < minValue) 
       {
           /*record the maximum sensor value*/
           minValue = readValue;
       }
   }
   
   // Subtract min from max
   result = ((maxValue - minValue) * 5.0)/1024.0;
      
   return result;
 }

void closeGate(uint8_t num){
  Serial.print("closeGate ");
  Serial.println(num);
  pwm.setPWM(num, 0, gateMinMax[num][1]);
}
void openGate(uint8_t num){
  Serial.print("openGate ");
  Serial.println(num);
    pwm.setPWM(num, 0, gateMinMax[num][0]);
    delay(100);
    pwm.setPWM(num, 0, gateMinMax[num][0]-5);
}

@gladewater2016, how much experience do you have with the Arduinos?

Which Arduino do you have?

How many ACS712 do you have?

As I read the code, you need at least 2 (actually will need 4).

I am using the arduino uno and a adafruit 16x12 bit servo shield. If and when I get the project finished, It will be udes on 6 different tools, so there will be 6, acs712,. My arduino knowledge is very limited

How many ACS712 do you have now?

These two lines

String tools[NUMBER_OF_TOOLS] = {“Miter Saw”,“Table Saw”,“Band Saw”}; //, “Floor Sweep”
int voltSensor[NUMBER_OF_TOOLS] = {A1,A2,A3};

Show which sensor is assigned to each tool.

These lines:

for(int i=0;i<NUMBER_OF_TOOLS;i++)
{
if( checkForAmperageChange(i))
{
activeTool = i;
exit;
}
if( i!=0)
{
if(checkForAmperageChange(0))
{
activeTool = 0;
exit;
}
}

check for the tool to be turned on.

If the one ACS712 you have is wired to A0, it will not cause the DC to turn on. Try plugging it into A1.

The program also has lots of output to the serial monitor. Can you post some using code tags.

I plugged it into A1. The serial plotter is showing a voltage increase when I turn the heat gun on. I am using a heat gun to similate the tool being turned on. I am not getting a signal to turn the dust collector relay on

Does the serial monitor show the arduino is trying to turn on the DC?

void turnOnDustCollection(){
Serial.println(“turnOnDustCollection”);
digitalWrite(dustCollectionRelayPin,1);
collectorIsOn = true;
}

When I turn the heat gun on, the amps change from 0.07 to 5.40. So I guess the answer is yes..?

for(int i=0;i

What do you think that the exit statements do in this snippet?

There should not be a guess. The text listed in post #11 will be printed in the serial monitor. The serial monitor is in the same menu and right above the Serial Plotter.

The serial monitor is where I am seeing the amp increase when I turn the heat gun on. It is showing a amp increase on the miter saw from 0.07 to 5.40

You never see it print "turnOnDustCollection"?

no

groundFungus: for(int i=0;i

What do you think that the exit statements do in this snippet?

Find tool and exit loop(). Cute function. I'm thinking this doesn't work very well.

Luckily I can admit that I didn't write it.

I guess the million dollar question is, how do I fix it so it will turn on the dust collector and open a servo for the blast gate for the miter saw?

Actually the exit; does nothing but throw this warning.

...\arduino_modified_sketch_800891\sketch_may17b.ino: In function 'void setup()':

C:\Users\DaD\AppData\Local\Temp\arduino_modified_sketch_800891\sketch_may17b.ino:9:11: warning: statement is a reference, not call, to function 'exit' [-Waddress]
       exit;
           ^
...\arduino_modified_sketch_800891\sketch_may17b.ino:9:11: warning: statement has no effect [-Wunused-value]

The exit(0) function would exit loop, disable interrupts and freeze.

groundFungus:
Actually the exit; does nothing but throw this warning.

...\arduino_modified_sketch_800891\sketch_may17b.ino: In function 'void setup()':

C:\Users\DaD\AppData\Local\Temp\arduino_modified_sketch_800891\sketch_may17b.ino:9:11: warning: statement is a reference, not call, to function ‘exit’ [-Waddress]
      exit;
          ^
…\arduino_modified_sketch_800891\sketch_may17b.ino:9:11: warning: statement has no effect [-Wunused-value]





The exit(0) function would exit loop, disable interrupts and freeze.

That code is in loop(), not in setup(). Why does the compiler think it is in setup()?

I installed the Adafruit PWM Servo library (against my better judgement) and do not get any errors:

Build options changed, rebuilding all
Sketch uses 9122 bytes (3%) of program storage space. Maximum is 253952 bytes.
Global variables use 659 bytes (8%) of dynamic memory, leaving 7533 bytes for local variables. Maximum is 8192 bytes.

I did not say [u]error.[/u]

Do you have all warnings turned on in Preferences? I installed the Adafruit library and compiled his code and got the same warning.

Warnings. Errors. I don't care. I don't release code with warnings.

Show verbose output during compilation is checked and Compiler warnings is set to ALL.

Why would it freeze? Exit() would just bail from loop() back to main(). It does not sound like it is freezing as the OP is reporting seeing the Serial monitor providing data.

I am using the same code that the original builder of the system used. His system is identical to mine. The only exception is, I will be adding more tools than he did.