Thermal camera project

Other Hardware Displays
1

Hi,
I want to make a thermal camera using the nextion tft screen with the data coming from the amg8833 thermal sensor.

Can you help me with the code?
What is the arduino uno fill screen command for nextion?

2

I want to use nextion instead of TFT. but I don't know how to do it and the codes.
The following is the thermal glass library example of the amg8833 thermal sensor.

#include <Adafruit_GFX.h>    // Core graphics library
#include <Adafruit_ST7735.h> // Hardware-specific library
#include <SPI.h>

#include <Wire.h>
#include <Adafruit_AMG88xx.h>

#define TFT_CS     10 //chip select pin for the TFT screen
#define TFT_RST    9  // you can also connect this to the Arduino reset
                      // in which case, set this #define pin to 0!
#define TFT_DC     8

//low range of the sensor (this will be blue on the screen)
#define MINTEMP 22

//high range of the sensor (this will be red on the screen)
#define MAXTEMP 34

//the colors we will be using
const uint16_t camColors[] = {0x480F,
0x400F,0x400F,0x400F,0x4010,0x3810,0x3810,0x3810,0x3810,0x3010,0x3010,
0x3010,0x2810,0x2810,0x2810,0x2810,0x2010,0x2010,0x2010,0x1810,0x1810,
0x1811,0x1811,0x1011,0x1011,0x1011,0x0811,0x0811,0x0811,0x0011,0x0011,
0x0011,0x0011,0x0011,0x0031,0x0031,0x0051,0x0072,0x0072,0x0092,0x00B2,
0x00B2,0x00D2,0x00F2,0x00F2,0x0112,0x0132,0x0152,0x0152,0x0172,0x0192,
0x0192,0x01B2,0x01D2,0x01F3,0x01F3,0x0213,0x0233,0x0253,0x0253,0x0273,
0x0293,0x02B3,0x02D3,0x02D3,0x02F3,0x0313,0x0333,0x0333,0x0353,0x0373,
0x0394,0x03B4,0x03D4,0x03D4,0x03F4,0x0414,0x0434,0x0454,0x0474,0x0474,
0x0494,0x04B4,0x04D4,0x04F4,0x0514,0x0534,0x0534,0x0554,0x0554,0x0574,
0x0574,0x0573,0x0573,0x0573,0x0572,0x0572,0x0572,0x0571,0x0591,0x0591,
0x0590,0x0590,0x058F,0x058F,0x058F,0x058E,0x05AE,0x05AE,0x05AD,0x05AD,
0x05AD,0x05AC,0x05AC,0x05AB,0x05CB,0x05CB,0x05CA,0x05CA,0x05CA,0x05C9,
0x05C9,0x05C8,0x05E8,0x05E8,0x05E7,0x05E7,0x05E6,0x05E6,0x05E6,0x05E5,
0x05E5,0x0604,0x0604,0x0604,0x0603,0x0603,0x0602,0x0602,0x0601,0x0621,
0x0621,0x0620,0x0620,0x0620,0x0620,0x0E20,0x0E20,0x0E40,0x1640,0x1640,
0x1E40,0x1E40,0x2640,0x2640,0x2E40,0x2E60,0x3660,0x3660,0x3E60,0x3E60,
0x3E60,0x4660,0x4660,0x4E60,0x4E80,0x5680,0x5680,0x5E80,0x5E80,0x6680,
0x6680,0x6E80,0x6EA0,0x76A0,0x76A0,0x7EA0,0x7EA0,0x86A0,0x86A0,0x8EA0,
0x8EC0,0x96C0,0x96C0,0x9EC0,0x9EC0,0xA6C0,0xAEC0,0xAEC0,0xB6E0,0xB6E0,
0xBEE0,0xBEE0,0xC6E0,0xC6E0,0xCEE0,0xCEE0,0xD6E0,0xD700,0xDF00,0xDEE0,
0xDEC0,0xDEA0,0xDE80,0xDE80,0xE660,0xE640,0xE620,0xE600,0xE5E0,0xE5C0,
0xE5A0,0xE580,0xE560,0xE540,0xE520,0xE500,0xE4E0,0xE4C0,0xE4A0,0xE480,
0xE460,0xEC40,0xEC20,0xEC00,0xEBE0,0xEBC0,0xEBA0,0xEB80,0xEB60,0xEB40,
0xEB20,0xEB00,0xEAE0,0xEAC0,0xEAA0,0xEA80,0xEA60,0xEA40,0xF220,0xF200,
0xF1E0,0xF1C0,0xF1A0,0xF180,0xF160,0xF140,0xF100,0xF0E0,0xF0C0,0xF0A0,
0xF080,0xF060,0xF040,0xF020,0xF800,};

Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS,  TFT_DC, TFT_RST);

Adafruit_AMG88xx amg;
unsigned long delayTime;
float pixels[AMG88xx_PIXEL_ARRAY_SIZE];
uint16_t displayPixelWidth, displayPixelHeight;

void setup() {
  Serial.begin(9600);
    Serial.println(F("AMG88xx thermal camera!"));

    tft.initR(INITR_144GREENTAB);   // initialize a ST7735S chip, black tab
    tft.fillScreen(ST7735_BLACK);

    displayPixelWidth = tft.width() / 8;
    displayPixelHeight = tft.height() / 8;

    //tft.setRotation(3);
    
    bool status;
    
    // default settings
    status = amg.begin();
    if (!status) {
        Serial.println("Could not find a valid AMG88xx sensor, check wiring!");
        while (1);
    }
    
    Serial.println("-- Thermal Camera Test --");
    delay(100); // let sensor boot up

}

void loop() {
  //read all the pixels
  amg.readPixels(pixels);

  for(int i=0; i<AMG88xx_PIXEL_ARRAY_SIZE; i++){
    uint8_t colorIndex = map(pixels[i], MINTEMP, MAXTEMP, 0, 255);
    colorIndex = (uint8_t)constrain((int16_t)colorIndex, (int16_t)0, (int16_t)255);

    //draw the pixels!
    tft.fillRect(displayPixelHeight * floor(i / 8), displayPixelWidth * (i % 8),
        displayPixelHeight, displayPixelWidth, camColors[colorIndex]);
  }
}
3

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4

A Nextion is a HMI, Human Machine Interface, it is not a display in the traditional sense. You cannot use it to display an image. There is no fill screen command. See Using Nextion displays with Arduino for help.

Nothing in the code you posted has anything to do with a Nextion.

5

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