Movement path drawing

[Alija22]

Hi, I want to draw the movement path of my robot. I mean I want to draw a path that my robot move in that direction. can any one help me?

[TIMAI2]

Do you want to get the path the robot is following, or do you want to set a path for the robot to follow ?

[Alija22]

I want to set a pass for robot to follow.

[TIMAI2]

How do you want to draw the path ?

[Alija22]

By swiping on the screen

[TIMAI2]

Do you mean swipe to the right, car turns right and moves forward in that direction, for example ?

Just keep what you want to do close to your chest, let me keep asking questions until we know what it is you want to do...(sarcasm)

[Alija22]

I want to draw a curve and the robot follows it.

[TIMAI2]

Here is an example of what you might do. I have simulated the movement of the car in the smaller canvas. You would need a "map" of the area the car operates in, so that the coordinates recorded on the large canvas can be translated to positions for the car to move to. I do not have such a car so do not know how you might program this part. This may be enough to get you going...

drawRouteForCar.aia (4.9 KB)

Others may have better suggestions...

[Alija22]

Tank you very much. How can I open the attached file?

[TIMAI2]

In appinventor 2

[Alija22]

How to design the blocks for this code?

#include <SoftwareSerial.h>
#include <Servo.h>
#include "HCPCA9685.h"

SoftwareSerial BT(13,12);  //RX , TX pins

char state=0;
/* I2C slave address for the device/module. For the HCMODU0097 the default I2C address
is 0x40 */ 
#define  I2CAdd_1 0x40
#define  I2CAdd_2 0x41
int pos1=0;
int pos2=100;
int pos3=200; 
int pos5=150;
const float pos4=80.0/pos5;
/* Create an instance of the library */
HCPCA9685 HCPCA9685_1(I2CAdd_1);
HCPCA9685 HCPCA9685_2(I2CAdd_2);

void setup() {
   // Initialise both modules
  HCPCA9685_1.Init(SERVO_MODE);
  HCPCA9685_2.Init(SERVO_MODE);
  // Wake both devices up
  HCPCA9685_1.Sleep(false);
  HCPCA9685_2.Sleep(false);
  unsigned int Pos;
  
Serial.begin(9600);
BT.begin(9600);
}

/* Move Forward */
void move_forward() {
  HCPCA9685_1.Servo(2, pos1);
  HCPCA9685_1.Servo(5, pos1);
}

/* Move Backward */
void move_backward() {
  HCPCA9685_1.Servo(2, pos2);
  HCPCA9685_1.Servo(5, pos2);
}

/* Move Right */
void turn_right() {
   HCPCA9685_1.Servo(0, pos1);
  HCPCA9685_1.Servo(3, pos1);
}

/* Move Left */
void turn_left() {
   HCPCA9685_1.Servo(0, pos2);
  HCPCA9685_1 .Servo(3, pos2);
}

/* Stop Move */
void move_stop() {
    HCPCA9685_1.Servo(0, pos2);

}

void loop() {
  if (BT.available() >0) {
    state = BT.read();
    Serial.print(state);
    
    if(state == 'F'){
      move_forward();
  }
    else if(state == 'B'){
      move_backward();
  }
    else if(state == 'R'){
      turn_right();
  }
    else if(state == 'L'){
      turn_left();
  }
//    else if (state == "S") {
//      move_stop();
//  } 
  }
}