Link analog data from Arduino Giga Display Shield

How to
1

Hello everyone,

I’m new and have already made a GUI. Now I have programmed a text area and it works great graphically. I’m using an Arduino Giga Board with Shield. Everything runs and implements great. Now I would like to display analog values ​​with the text area.
How can I link an analog value in the sketch?

So i think my problem is on the loop where is the funktion " /* Feed LVGL engine */
lv_timer_handler();" in my case i analogread in loop, but display flickers heavily?

Are there basics that I can use? Square Line Studio exports great, but now I want to feed the individual widgets with data. Can anybody help me with this? Thanks!

#include "Arduino_GigaDisplayTouch.h"
#include "lvgl.h"
#include "ui.h"

/* Insert resolution WxH according to your SquareLine studio project settings */
Arduino_H7_Video Display(800, 480, GigaDisplayShield);
Arduino_GigaDisplayTouch Touch;

int analogValue = 0; 

void setup() {
  Display.begin();
  Touch.begin();

  ui_init();
}

void loop() {

  analogValue = analogRead(A0);

 Serial.println(analogValue); 

  /* Feed LVGL engine */
  lv_timer_handler();
}

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2

So update… i have been tested with an ESP 32 and ST7735 Display and it works great. Seems to be the giga and shield have problems with it, or that libary.
Strange…

3

Seems you completely omit in setup config A0 And on STM you need check too if pin is AD capable.

4

Hello Marian

i have the Arduino giga board with has ADC from A0-12. So no problem.

i use now a comparator. It works great:

#include "Arduino_GigaDisplayTouch.h"
#include "lvgl.h"
#include "ui.h"
#include "Wire.h"
#include <Adafruit_ADS1X15.h>


/* Insert resolution WxH according to your SquareLine studio project settings */
Arduino_H7_Video          Display(800, 480, GigaDisplayShield); 
Arduino_GigaDisplayTouch  Touch;
Adafruit_ADS1115 ads;  /* Use this for the 16-bit version */

void setup() {
  Display.begin();
  Touch.begin();
  Serial.begin(115200);
  Wire.begin(); //SDA & SDL
  ads.begin();
  ads.setGain(GAIN_TWO);


 
  ui_init();

}

void analogRead() {

    int16_t adc0;
    adc0 = ads.readADC_SingleEnded(0);

    Serial.println(adc0);
    // Eine kleine Verzögerung, um den seriellen Monitor nicht zu beeinträchtigen
    delay(10);
}
void loop() {

  
  /* Feed LVGL engine */
  lv_timer_handler();

  analogRead();
}`Preformatted text`

also whit declarition in setup, whit pinmode.... it doesn´t work.
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