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Diy Arduino 2-axis Camera Slider

Made by michael-rechtin / 3D Printing / Photos & Video / Robotics / Sensors

About the project

In this project, I build a 2-axis camera slider from easily found parts. The electronics include an Arduino Uno, 5V Stepper Motors, and an LCD screen. Having 2-axes of freedom allows the camera to translate and pan at the same time. This compound movement creates very dynamic shots.

Project info

Difficulty: Moderate

Platforms: Arduino

Estimated time: 1 day

License: GNU General Public License, version 3 or later (GPL3+)

Story

https://www.youtube.com/watch?v=DxmX1_5Bzog

CAD, enclosures and custom parts

2-Axis Slider CAD

Code

Camera Slider C++ Code

#include <Stepper.h>
#include "Wire.h" // For I2C
#include "LCD.h" // For LCD
#include "LiquidCrystal_I2C.h" // Added library*
//Set the pins on the I2C chip used for LCD connections
//ADDR,EN,R/W,RS,D4,D5,D6,D7
LiquidCrystal_I2C lcd(0x27,2,1,0,4,5,6,7); // 0x27 is the default I2C bus address of the backpack-see article
// Define number of steps per rotation:
const int stepsPerRevolution = 2048;
// Wiring:
// Pin 8 to IN1 on the ULN2003 driver
// Pin 9 to IN2 on the ULN2003 driver
// Pin 10 to IN3 on the ULN2003 driver
// Pin 11 to IN4 on the ULN2003 driver
// Create stepper object called 'myStepper', note the pin order:
Stepper Stepper1 = Stepper(stepsPerRevolution, 8, 10, 9, 11);
Stepper Stepper2 = Stepper(stepsPerRevolution, 2, 4, 3, 5);
int ModePin = 3;
int Pos1Pin = 1;
int Pos2Pin = 2;
int powerstate;
int startstate;
int mode;
int readyled=6;
int pos_1=0;
int pos_2=0;
int start_pos=0;
int start_rot=0;
int end_pos=0;
int end_rot=0;
void setup() {
  // Set the speed to 5 rpm:
  Stepper1.setSpeed(20);
  Stepper2.setSpeed(20);
  lcd.begin (20,4); // 16 x 2 LCD module
  lcd.setBacklightPin(3,POSITIVE); // BL, BL_POL
  lcd.setBacklight(HIGH);

  pinMode(12,INPUT);
  pinMode(7,INPUT);
  pinMode(readyled,OUTPUT);
  // Begin Serial communication at a baud rate of 9600:
  Serial.begin(9600);
}
void loop() {
mode=int(map(analogRead(ModePin),0,1024,5,0));
int potpos1=analogRead(Pos1Pin);
int potpos2=analogRead(Pos2Pin);

if (digitalRead(12)==HIGH){
  powerstate=1;
  digitalWrite(readyled,HIGH);
}
else{
  powerstate=0;
  digitalWrite(readyled,LOW);
}

if (digitalRead(7)==HIGH){
  startstate=1;
}
else{
  startstate=0;
}

lcd.clear();
lcd.setCursor(0,0);
lcd.print("Mode:");
lcd.setCursor(6,0);
lcd.print(mode);

lcd.setCursor(0,3);
lcd.print("Position:");
lcd.setCursor(10,3);
lcd.print(pos_1);
lcd.setCursor(0,2);
lcd.print("Rotation:");
lcd.setCursor(10,2);
lcd.print(pos_2);
if (mode==1){
  while (potpos1<=1024/3){
    potpos1=analogRead(Pos1Pin);
    Stepper1.step(-1);
    pos_2=pos_2-1;
  }
  while (potpos1>=(1024/3)*2){
    potpos1=analogRead(Pos1Pin);
    Stepper1.step(1);
    pos_2=pos_2+1;
  }

  while (potpos2<=1024/3){
    potpos2=analogRead(Pos2Pin);
    Stepper2.step(1);
    pos_1=pos_1+1;
  }
  while (potpos2>=(1024/3)*2){
    potpos2=analogRead(Pos2Pin);
    Stepper2.step(-1);
    pos_1=pos_1-1;
  }
}

if (mode==2){
  if (digitalRead(7)==HIGH){
    start_pos=pos_1;
    start_rot=pos_2;
  }
}

if (mode==3){
  if (digitalRead(7)==HIGH){
   end_pos=pos_1;
   end_rot=pos_2;
  }
}

if (mode==4){
  if (digitalRead(12)==HIGH){
    int dist_pos=end_pos-start_pos;
    int dist_rot=end_rot-start_rot;

    int step_size_pos=dist_pos/100;
    int step_size_rot=dist_rot/100;

    int count1=0;
    int count2=0;

    int sign_pos=-1*dist_pos/abs(dist_pos);
    int sign_rot=-1*dist_rot/abs(dist_rot);
    
    Serial.print(dist_pos);
    Serial.print("   ");
    Serial.print(dist_rot);
    Serial.print("   ");
    Serial.println(dist_pos*dist_rot);
    for (int k=0;k<=abs(long(dist_pos)*long(dist_rot));k++){
      
      if (count1==abs(dist_pos)){
        Stepper1.step(1*sign_pos);
        count1=0;
      }
      if (count2==abs(dist_rot)){
        Stepper2.step(1*sign_rot);
        count2=0;
      }
      count1=count1+1;
      count2=count2+1;
    }
  }
}

}

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Diy Arduino 2-axis Camera Slider

About the project

Project info

Story

CAD, enclosures and custom parts

2-Axis Slider CAD

Code

Camera Slider C++ Code

Credits

michael-rechtin

Leave your feedback...

Shop

Project Hub

Video

Blog

Shop home

3D printing

Single Board Computers

Development kits

Sensors

Internet of things

Robotics

Accessories

Product of the Week

Electromaker Educator

The Electromaker Show

The Electromaker Podcast

Diy Arduino 2-axis Camera Slider

About the project

Project info

Story

CAD, enclosures and custom parts

2-Axis Slider CAD

Code

Camera Slider C++ Code

Credits

michael-rechtin

Leave your feedback...

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