Smartphone Controlled Pick and Place Robot with Code

A smartphone-controlled robotic car with an arm on it with acomplete project report, code, and circuit diagram. which can pick up to 9 gram.

IntermediateFull instructions providedOver 1 day575

Smartphone Controlled Pick and Place Robot with Code

Things used in this project

Hardware components

Raspberry Pi Complete Robotic Kit

Epson Arduino Uno R3

smart home HC Bluetooth Module

Amazon Alexa Servo Motor

Adafruit Potentiometer

Software apps and online services

Amazon Alexa Official Arduino Skill

Hand tools and fabrication machines

Acutronic Robotics Digital Electric Soldering Iron Kit with Helping Hands

Soldering iron with Digital multimeter kit

Story

what you need to do is just write the name of apparatus on this site and ship it at discount rate online.

Arm instruction:

I have make the arm using scales but can also purchase better arm online from

What is a robotic arm used for?

The robot uses motion sensors to make sure it moves just the right amount. An industrial robot with six joints closely resembles a human arm -- it has the equivalent of a shoulder, an elbow and a wrist.

What are the parts of a robotic arm?

The arm is the main section of the robotic arm and consists of three parts: the shoulder, elbow and wrist. These are all joints, with the shoulder resting at the base of the arm, typically connected to the controller, and it can move forward, backward or spin.

Servo Motors.

I have used mini servo motors which can only pick 9 gram of weight at a time you can purchase bigger motors through upper link.

Servo motors have been around for a long time and are utilized in many applications. They are small in size but pack a big punch and are very energy-efficient. These features allow them to be used to operate remote-controlled or radio-controlled toys car robotis and airplanes. Servo motors are also used in industrial applications, robotics, in-line manufacturing, pharmaceutics and food services. But how do the little guys work?

The servo circuitry is built right inside the motor unit and has a positionable shaft, which usually is fitted with a gear(as shown below). The motor is controlled with an electric signal which determines the amount of movement of the shaft

Note: if you have purchased the arm then no need to buy servo motors.

Car instruction : you need to buy chassis for structure you can purchase through upper links.

use circuit digest app

Code: we have two separate code for car and arm that is the reason we are using two codes. if you are good at language you can merge these both codes.

int motorLpin1=2;
int motorLpin2=3;
int motorRpin1=4;
int motorRpin2=5;
int motorLpwm=10;
int motorRpwm=11;

int motorSpeed=125;
int turn=50;

void setup() {
  Serial.begin(9600);
  Serial.flush();
  pinMode(motorLpin1,OUTPUT);
  pinMode(motorLpin2,OUTPUT);
  pinMode(motorRpin1,OUTPUT);
  pinMode(motorRpin2,OUTPUT);
  pinMode(motorLpwm,OUTPUT);
  pinMode(motorRpwm,OUTPUT);
}

void loop() {
  String input="";
  while(Serial.available()){
    input+=(char)Serial.read();
    delay(5);
  }
  
  if(input=="n"){
    stp();
  }
  else if(input=="F"){
    fwd();
  }
  else if(input=="R"){
    rev();
  }
  else if(input.indexOf("TL")>-1){
    lft();
  }
  else if(input.indexOf("TR")>-1){
    rght();
  }
  else if(input!=""){
    motorSpeed=input.toInt();
  }
}

void fwd(){
  analogWrite(motorLpwm,motorSpeed);
  analogWrite(motorRpwm,motorSpeed);
  digitalWrite(motorLpin1,1);
  digitalWrite(motorLpin2,0);
  digitalWrite(motorRpin1,1);
  digitalWrite(motorRpin2,0);
}

void rev(){
  analogWrite(motorLpwm,motorSpeed);
  analogWrite(motorRpwm,motorSpeed);
  digitalWrite(motorLpin1,0);
  digitalWrite(motorLpin2,1);
  digitalWrite(motorRpin1,0);
  digitalWrite(motorRpin2,1);
}

void lft(){
  analogWrite(motorLpwm,motorSpeed-turn);
  analogWrite(motorRpwm,motorSpeed+turn);
  digitalWrite(motorLpin1,0);
  digitalWrite(motorLpin2,1);
  digitalWrite(motorRpin1,1);
  digitalWrite(motorRpin2,0);
}

void rght(){
  analogWrite(motorLpwm,motorSpeed+turn);
  analogWrite(motorRpwm,motorSpeed-turn);
  digitalWrite(motorLpin1,1);
  digitalWrite(motorLpin2,0);
  digitalWrite(motorRpin1,0);
  digitalWrite(motorRpin2,1);
}

void stp(){
  analogWrite(motorLpwm,0);
  analogWrite(motorRpwm,0);
  digitalWrite(motorLpin1,1);
  digitalWrite(motorLpin2,1);
  digitalWrite(motorRpin1,1);
  digitalWrite(motorRpin2,1);
}

-*//add servo library
#include <Servo.h>

//define our servos
Servo servo1;
Servo servo2;
Servo servo3;
Servo servo4;

//define our potentiometers
int pot1 = A1;
int pot2 = A2;
int pot3 = A3;
int pot4 = A4;

//variable to read the values from the analog pin (potentiometers)
int valPot1;
int valPot2;
int valPot3;
int valPot4;

void setup()
{
  //attaches our servos on pins PWM 3-5-6-9 to the servos
  servo1.attach(3);
  servo1.write(0);  //define servo1 start position
  servo2.attach(5);
  servo2.write(90); //define servo2 start position
  servo3.attach(6);
  servo3.write(90); //define servo3 start position
  servo4.attach(9);
  servo4.write(70); //define servo4 start position
}

void loop()
{
  //reads the value of potentiometers (value between 0 and 1023)

  valPot1 = analogRead(pot1);
  valPot1 = map (valPot1, 0, 1023, 0, 180); //scale it to use it with the servo (value between 0 and 180)
  servo1.write(valPot1); //set the servo position according to the scaled value

  valPot2 = analogRead(pot2);
  valPot2 = map (valPot2, 0, 1023, 0, 180);
  servo2.write(valPot2);
  
  valPot3 = analogRead(pot3);
  valPot3 = map (valPot3, 0, 1023, 0, 180);
  servo3.write(valPot3);

  valPot4 = analogRead(pot4);
  valPot4 = map (valPot4, 0, 1023, 70, 150);
  servo4.write(valPot4);
  
}