Hello,
I am a beginner and learning Arduino programming.
I'm designing an autonomous vehicle and I'm having some minor problems with it.
I use an LCD display and a Huskylens camera. Does anyone have experience with her? Can you advise?

Thanks

 

Welcome to AAC.

Do you have particular questions?

 

I would like to send data from the Huskylens (trucking object) and display it on the LCD. The IDE serial monitor shows the correct values (xcenter, ycenter .....) but the LCD shows the value "-1". LCD is I2C, Huskylens UART (RX,TX).
I think my code is correct.

 

I would like to send data from the Huskylens (trucking object) and display it on the LCD. The IDE serial monitor shows the correct values (xcenter, ycenter .....) but the LCD shows the value "-1". LCD is I2C, Huskylens UART (RX,TX).
I think my code is correct.

This is confusing. Help me understand, You have an LCD display that is not the onion the Huskylens and you want to show the numerical data, as text, on a second display?

 

Yes. I need to check the data while the robot car is driving (without cable).
The LCD display is 4x20 characters and works normally. It displays all other data correctly.

 

Please post your code, I have no idea how you are getting the values.

 

Thank you for your interest in my problem.
Excerpt from the program code (the entire program code has 450 lines)
I can also send the full code.

  #include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,20,4);

#include "HUSKYLENS.h"

#include "SoftwareSerial.h"

SoftwareSerial mySerial(10, 11);

HUSKYLENS huskylens;


void setup() {

Serial.begin(115200);

mySerial.begin(9600);


  lcd.init();                      // inicializace LCD displeje

lcd.backlight();                 // zapnutí podsvícení displeje

//huskylens.writeAlgorithm(ALGORITHM_OBJECT_TRACKING);

}

void printResult(HUSKYLENSResult result);


void loop() {

  HUSKYLENSResult result = huskylens.read();

  int aaa=result.xCenter;

  lcd.setCursor(0,2);

  lcd.print("stred X: ");

  lcd.setCursor(9,2);

  lcd.print(aaa);

  }

 

hI 123,
Please use Code quotes when uploading Arduino Sketches.
Mod

 

Sorry, thanks for the heads up and I understand. I'm a newbie

 

Thank you for your interest in my problem.
Excerpt from the program code (the entire program code has 450 lines)
I can also send the full code.

  #include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,20,4);

#include "HUSKYLENS.h"

#include "SoftwareSerial.h"

SoftwareSerial mySerial(10, 11);

HUSKYLENS huskylens;


void setup() {

Serial.begin(115200);

mySerial.begin(9600);


  lcd.init();                      // inicializace LCD displeje

lcd.backlight();                 // zapnutí podsvícení displeje

//huskylens.writeAlgorithm(ALGORITHM_OBJECT_TRACKING);

}

void printResult(HUSKYLENSResult result);


void loop() {

  HUSKYLENSResult result = huskylens.read();

  int aaa=result.xCenter;

  lcd.setCursor(0,2);

  lcd.print("stred X: ");

  lcd.setCursor(9,2);

  lcd.print(aaa);

  }

When you say that the proper values appear via the serial monitor, do you mean when you print your variable aaa there, or something else?

 

Oops, I didn't think of that. I have not tested the display value "aaa". But, in another part of the program code I control the motors and they don't respond.
For example:

else if(result.xCenter>=200)
{
right(); // engine
}

Result:
engine no action - (changing the value from 200 to any does not affect the result).

 

To debug this, you need to work out what the value of result.xCenter is. You will need to print it via the serial console to determine if it is returning what oyu expect.

 

serial monitor output:



The values from the camera are ok. The serial monitor displays them correctly. I think the error is in the code program - conversion of values from "result.xcenter" to the correct value to be displayed on the LCD. But I'm just guessing.

 

You are printing using a function I can’t see. You are not just using Serial.println() to print the variable you are trying to use.

 

Code for output to the serial monitor:

void printResult(HUSKYLENSResult result){
if (result.command == COMMAND_RETURN_BLOCK){
Serial.println(String()+F("Block:xCenter=")+result.xCenter+F(",yCenter=")+result.yCenter+F(",width=")+result.width+F(",height=")+result.height+F(",ID=")+result.ID);
delay(1);
}
else if (result.command == COMMAND_RETURN_ARROW){
Serial.println(String()+F("Arrow:xOrigin=")+result.xOrigin+F(",yOrigin=")+result.yOrigin+F(",xTarget=")+result.xTarget+F(",yTarget=")+result.yTarget+F(",ID=")+result.ID);
delay(1);
}
else{
Serial.println("Object unknown!");
}
delay(2);
}

Print on the LCD display:

HUSKYLENSResult result = huskylens.read();
int aaa=result.xCenter;

//------------------- souradnice objektu -------------------------------------------
lcd.setCursor(0,2);
lcd.print("stred X: ");
lcd.setCursor(9,2);
lcd.print(aaa);

lcd.setCursor(14,2);
lcd.print("Y: ");
lcd.setCursor(17,2);
lcd.print(result.yCenter);

 

Where is this from?

HUSKYLENSResult result = huskylens.read();

I can’t find anything like it in the API documentation, though there is a HUSKYLENSResult read()
It isn’t what the function that is working is doing.

 

I believe it is a Huskylens library command. But I'm not sure.
Source: https://rootsaid.com/object-tracking-robot-arduino/

 

I still have a consideration: the transfer rate from the Huskylens is 115200 baud. Isn't it too fast for LCD?

 

Try putting your LCD code in here:

void printResult(HUSKYLENSResult result){
    if (result.command == COMMAND_RETURN_BLOCK){
        Serial.println(String()+F("Block:xCenter=")+result.xCenter+F(",yCenter=")+result.yCenter+F(",width=")+result.width+F(",height=")+result.height+F(",ID=")+result.ID);
    // LCD code here, using result.xCenter
    }
    else if (result.command == COMMAND_RETURN_ARROW){
        Serial.println(String()+F("Arrow:xOrigin=")+result.xOrigin+F(",yOrigin=")+result.yOrigin+F(",xTarget=")+result.xTarget+F(",yTarget=")+result.yTarget+F(",ID=")+result.ID);
    }
    else{
        Serial.println("Object unknown!");
    }
}

 

Hi,
I solved the problem with the data output to the LCD display. Thanks everyone for the advice.
But I have another question and I am asking for your advice. Is it possible to transfer an image (or video) from the Husky to a PC via Bluetooth?