Digital Controlled Ram Depth

A simple method of controlling solenoids to ensure two rams are equal length, and the ability to digitally set that depth.

Jun 17, 2018

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robots

remote control

Components and supplies

Breadboard (generic)

Rotary potentiometer (generic)

LED (generic)

Resistor 221 ohm

Arduino UNO

Project description

Code

Depth Control Code

c_cpp

Below is the code needed to create the circuit that has been discussed. The number of cylinders that can be used is dependent on the user, to add or remove cylinder just add them 'inSol[]' array, and make sure to add a potentiometer reading for it in 'axlePot'.

1//pins
2int depthSet = A5; //depth set pot pin
3int axlePot[] = {A0,   A1}; //ram pot pins
4int sol1 = 2; // solenoid 1 pin
5int inSol[] = {3, 4};   //solenoid 2 - 3
6int liftRam = 7 ; // button for transport solenoid
7int ledPins[]   = {9, 10, 11, 12, 13}; //display pins
8
9//variables
10int readSet; //value   of setting pot
11int readAxle[3]; //number of ram pots to read
12const int ledCount   = 6;    // the number of LEDs in the display
13
14void setup() {
15  for (byte   i = 0; i < 3; i++) { //setting the ram potentimeters
16    pinMode(axlePot[i],   INPUT);
17  }
18  for (byte i = 0; i < 3; i++) { //setting the ram solenoids
19     pinMode(inSol[i], OUTPUT);
20  }
21  for (int thisLed = 0; thisLed < ledCount;   thisLed++) { //setting the depth display
22    pinMode(ledPins[thisLed], OUTPUT);
23   }
24  pinMode(depthSet, INPUT); // setting the depth potenimeter
25  pinMode(liftRam,   INPUT_PULLUP); //reading the ramLift pin
26  pinMode(sol1, OUTPUT); // setting   solenoid 1
27}
28
29void loop() {
30  
31  readSet = analogRead(depthSet);
32
33   int ledLevel = map(readSet, 0, 1023, 0, ledCount); //shows a depth value on the   led display
34   for (int thisLed = 0; thisLed < ledCount; thisLed++) {
35    if   (thisLed < ledLevel) {
36      digitalWrite(ledPins[thisLed], HIGH);}
37      else   {
38        digitalWrite(ledPins[thisLed], LOW);
39      }
40    }
41  for (int   i = 0; i < 3; i++) { //read axle pins
42    readAxle[i] = analogRead(axlePot[i]);
43   
44  for (int i = 0; i < 3; i++) {
45     if(readAxle[i] < 0.9*readSet) {
46         digitalWrite(inSol[i], HIGH);
47        digitalWrite(sol1, HIGH);
48      }
49       if (readAxle[i] > 0.9*readSet && readAxle[i] < 1.1*readSet) {
50        digitalWrite(inSol[i],   LOW);
51        digitalWrite(sol1, LOW);
52      }
53      if (readAxle[i] >   1.1*readSet) {
54        digitalWrite(inSol[i], HIGH);
55        digitalWrite(sol1,   LOW);
56      }
57    }
58  }
59}

//pins
int depthSet = A5; //depth set pot pin
int axlePot[] = {A0,   A1}; //ram pot pins
int sol1 = 2; // solenoid 1 pin
int inSol[] = {3, 4};   //solenoid 2 - 3
int liftRam = 7 ; // button for transport solenoid
int ledPins[]   = {9, 10, 11, 12, 13}; //display pins

//variables
int readSet; //value   of setting pot
int readAxle[3]; //number of ram pots to read
const int ledCount   = 6;    // the number of LEDs in the display

void setup() {
  for (byte   i = 0; i < 3; i++) { //setting the ram potentimeters
    pinMode(axlePot[i],   INPUT);
  }
  for (byte i = 0; i < 3; i++) { //setting the ram solenoids
     pinMode(inSol[i], OUTPUT);
  }
  for (int thisLed = 0; thisLed < ledCount;   thisLed++) { //setting the depth display
    pinMode(ledPins[thisLed], OUTPUT);
   }
  pinMode(depthSet, INPUT); // setting the depth potenimeter
  pinMode(liftRam,   INPUT_PULLUP); //reading the ramLift pin
  pinMode(sol1, OUTPUT); // setting   solenoid 1
}

void loop() {
  
  readSet = analogRead(depthSet);

   int ledLevel = map(readSet, 0, 1023, 0, ledCount); //shows a depth value on the   led display
   for (int thisLed = 0; thisLed < ledCount; thisLed++) {
    if   (thisLed < ledLevel) {
      digitalWrite(ledPins[thisLed], HIGH);}
      else   {
        digitalWrite(ledPins[thisLed], LOW);
      }
    }
  for (int   i = 0; i < 3; i++) { //read axle pins
    readAxle[i] = analogRead(axlePot[i]);
   
  for (int i = 0; i < 3; i++) {
     if(readAxle[i] < 0.9*readSet) {
         digitalWrite(inSol[i], HIGH);
        digitalWrite(sol1, HIGH);
      }
       if (readAxle[i] > 0.9*readSet && readAxle[i] < 1.1*readSet) {
        digitalWrite(inSol[i],   LOW);
        digitalWrite(sol1, LOW);
      }
      if (readAxle[i] >   1.1*readSet) {
        digitalWrite(inSol[i], HIGH);
        digitalWrite(sol1,   LOW);
      }
    }
  }
}

Depth Control Code

c_cpp

1//pins
2int depthSet = A5; //depth set pot pin
3int axlePot[] = {A0,  A1}; //ram pot pins
4int sol1 = 2; // solenoid 1 pin
5int inSol[] = {3, 4};  //solenoid 2 - 3
6int liftRam = 7 ; // button for transport solenoid
7int ledPins[]  = {9, 10, 11, 12, 13}; //display pins
8
9//variables
10int readSet; //value  of setting pot
11int readAxle[3]; //number of ram pots to read
12const int ledCount  = 6;    // the number of LEDs in the display
13
14void setup() {
15  for (byte  i = 0; i < 3; i++) { //setting the ram potentimeters
16    pinMode(axlePot[i],  INPUT);
17  }
18  for (byte i = 0; i < 3; i++) { //setting the ram solenoids
19    pinMode(inSol[i], OUTPUT);
20  }
21  for (int thisLed = 0; thisLed < ledCount;  thisLed++) { //setting the depth display
22    pinMode(ledPins[thisLed], OUTPUT);
23  }
24  pinMode(depthSet, INPUT); // setting the depth potenimeter
25  pinMode(liftRam,  INPUT_PULLUP); //reading the ramLift pin
26  pinMode(sol1, OUTPUT); // setting  solenoid 1
27}
28
29void loop() {
30  
31  readSet = analogRead(depthSet);
32
33  int ledLevel = map(readSet, 0, 1023, 0, ledCount); //shows a depth value on the  led display
34   for (int thisLed = 0; thisLed < ledCount; thisLed++) {
35    if  (thisLed < ledLevel) {
36      digitalWrite(ledPins[thisLed], HIGH);}
37      else  {
38        digitalWrite(ledPins[thisLed], LOW);
39      }
40    }
41  for (int  i = 0; i < 3; i++) { //read axle pins
42    readAxle[i] = analogRead(axlePot[i]);
43  
44  for (int i = 0; i < 3; i++) {
45     if(readAxle[i] < 0.9*readSet) {
46        digitalWrite(inSol[i], HIGH);
47        digitalWrite(sol1, HIGH);
48      }
49      if (readAxle[i] > 0.9*readSet && readAxle[i] < 1.1*readSet) {
50        digitalWrite(inSol[i],  LOW);
51        digitalWrite(sol1, LOW);
52      }
53      if (readAxle[i] >  1.1*readSet) {
54        digitalWrite(inSol[i], HIGH);
55        digitalWrite(sol1,  LOW);
56      }
57    }
58  }
59}

//pins
int depthSet = A5; //depth set pot pin
int axlePot[] = {A0,  A1}; //ram pot pins
int sol1 = 2; // solenoid 1 pin
int inSol[] = {3, 4};  //solenoid 2 - 3
int liftRam = 7 ; // button for transport solenoid
int ledPins[]  = {9, 10, 11, 12, 13}; //display pins

//variables
int readSet; //value  of setting pot
int readAxle[3]; //number of ram pots to read
const int ledCount  = 6;    // the number of LEDs in the display

void setup() {
  for (byte  i = 0; i < 3; i++) { //setting the ram potentimeters
    pinMode(axlePot[i],  INPUT);
  }
  for (byte i = 0; i < 3; i++) { //setting the ram solenoids
    pinMode(inSol[i], OUTPUT);
  }
  for (int thisLed = 0; thisLed < ledCount;  thisLed++) { //setting the depth display
    pinMode(ledPins[thisLed], OUTPUT);
  }
  pinMode(depthSet, INPUT); // setting the depth potenimeter
  pinMode(liftRam,  INPUT_PULLUP); //reading the ramLift pin
  pinMode(sol1, OUTPUT); // setting  solenoid 1
}

void loop() {
  
  readSet = analogRead(depthSet);

  int ledLevel = map(readSet, 0, 1023, 0, ledCount); //shows a depth value on the  led display
   for (int thisLed = 0; thisLed < ledCount; thisLed++) {
    if  (thisLed < ledLevel) {
      digitalWrite(ledPins[thisLed], HIGH);}
      else  {
        digitalWrite(ledPins[thisLed], LOW);
      }
    }
  for (int  i = 0; i < 3; i++) { //read axle pins
    readAxle[i] = analogRead(axlePot[i]);
  
  for (int i = 0; i < 3; i++) {
     if(readAxle[i] < 0.9*readSet) {
        digitalWrite(inSol[i], HIGH);
        digitalWrite(sol1, HIGH);
      }
      if (readAxle[i] > 0.9*readSet && readAxle[i] < 1.1*readSet) {
        digitalWrite(inSol[i],  LOW);
        digitalWrite(sol1, LOW);
      }
      if (readAxle[i] >  1.1*readSet) {
        digitalWrite(inSol[i], HIGH);
        digitalWrite(sol1,  LOW);
      }
    }
  }
}

Downloadable files

Electrical Schematic

See how it is wired up

Electrical Schematic

See how it is wired up

Electrical Schematic

Hydraulic Schematic

This is to show what the different solenoids are doing.

Hydraulic Schematic

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