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TFT 1.44” SPI ST7735 – ESP32-C6

Table of Contents

Schematic #

ESP32C6  - DISPLAY

GND      - GND
VCC 3.3V - VCC, LED
D3/SS    - CS
D2       - RESET
D4       - A0
D10 MOSI - SDA
D8 SCK   - SCK

Testcode “rotation” using adafruit library #

Icoon

Adafruit-ST7735-Library-1.11.0.zip #

1 bestand(en) 73.47 KB
Downloaden

Source: https://github.com/adafruit/Adafruit-ST7735-Library

Note: Please use the XIAO ESP32-C6 board for the pin definitions (not ESP32C6 Dev Module)

Code

#include <Adafruit_GFX.h>    // Core graphics library
#include <Adafruit_ST7735.h> // Hardware-specific library for ST7735
#include <SPI.h>

#define TFT_CS   D3 // 21
#define TFT_RST  D2 // Of -1 als je de reset pin niet gebruikt
#define TFT_DC   D4

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

void setup(void) {
  Serial.begin(9600);
  Serial.print("Hello! Adafruit ST77XX rotation test");

  // Use this initializer if you're using a 1.8" TFT
  // tft.initR(INITR_BLACKTAB);   // initialize a ST7735S chip, black tab
    
  // Use this initializer (uncomment) if you're using a 1.44" TFT
  tft.initR(INITR_144GREENTAB);   // initialize a ST7735S chip, black tab
    
  // Use this initializer (uncomment) if you're using a 0.96" 180x60 TFT
  //tft.initR(INITR_MINI160x80);   // initialize a ST7735S chip, mini display
    
  // Use this initializer (uncomment) if you're using a 1.54" 240x240 TFT
  //tft.init(240, 240);   // initialize a ST7789 chip, 240x240 pixels

  // OR use this initializer (uncomment) if using a 2.0" 320x240 TFT:
  //tft.init(240, 320);           // Init ST7789 320x240

  // OR use this initializer (uncomment) if using a 1.14" 240x135 TFT:
  //tft.init(135, 240);           // Init ST7789 240x135
  
  // SPI speed defaults to SPI_DEFAULT_FREQ defined in the library, you can override it here
  // Note that speed allowable depends on chip and quality of wiring, if you go too fast, you
  // may end up with a black screen some times, or all the time.
  //tft.setSPISpeed(40000000);
  
  Serial.println("init");

  tft.setTextWrap(false); // Allow text to run off right edge
  tft.fillScreen(ST77XX_BLACK);

  Serial.println("This is a test of the rotation capabilities of the TFT library!");
  Serial.println("Press <SEND> (or type a character) to advance");
}

void loop(void) {
  rotateLine();
  rotateText();
  rotatePixel();
  rotateFastline();
  rotateDrawrect();
  rotateFillrect();
  rotateDrawcircle();
  rotateFillcircle();
  rotateTriangle();
  rotateFillTriangle();
  rotateRoundRect();
  rotateFillRoundRect();
  rotateChar();
  rotateString();
}

void rotateText() {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.setCursor(0, 30);
    tft.setTextColor(ST77XX_RED);
    tft.setTextSize(1);
    tft.println("Hello World!");
    tft.setTextColor(ST77XX_YELLOW);
    tft.setTextSize(2);
    tft.println("Hello World!");
    tft.setTextColor(ST77XX_GREEN);
    tft.setTextSize(3);
    tft.println("Hello World!");
    tft.setTextColor(ST77XX_BLUE);
    tft.setTextSize(4);
    tft.print(1234.567);
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

void rotateFillcircle(void) {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.fillCircle(10, 30, 10, ST77XX_YELLOW);
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

void rotateDrawcircle(void) {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.drawCircle(10, 30, 10, ST77XX_YELLOW);
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

void rotateFillrect(void) {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.fillRect(10, 20, 10, 20, ST77XX_GREEN);
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

void rotateDrawrect(void) {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.drawRect(10, 20, 10, 20, ST77XX_GREEN);
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

void rotateFastline(void) {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.drawFastHLine(0, 20, tft.width(), ST77XX_RED);
    tft.drawFastVLine(20, 0, tft.height(), ST77XX_BLUE);
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

void rotateLine(void) {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.drawLine(tft.width()/2, tft.height()/2, 0, 0, ST77XX_RED);
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

void rotatePixel(void) {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.drawPixel(10,20, ST77XX_WHITE);
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

void rotateTriangle(void) {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.drawTriangle(20, 10, 10, 30, 30, 30, ST77XX_GREEN);
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

void rotateFillTriangle(void) {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.fillTriangle(20, 10, 10, 30, 30, 30, ST77XX_RED);
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

void rotateRoundRect(void) {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.drawRoundRect(20, 10, 25, 15, 5, ST77XX_BLUE);
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

void rotateFillRoundRect(void) {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.fillRoundRect(20, 10, 25, 15, 5, ST77XX_CYAN);
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

void rotateChar(void) {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.drawChar(25, 15, 'A', ST77XX_WHITE, ST77XX_WHITE, 1);
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

void rotateString(void) {
  for (uint8_t i=0; i<4; i++) {
    tft.fillScreen(ST77XX_BLACK);
    Serial.println(tft.getRotation(), DEC);

    tft.setCursor(8, 25);
    tft.setTextSize(1);
    tft.setTextColor(ST77XX_WHITE);
    tft.print("Adafruit Industries");
    delay(500);
    tft.setRotation(tft.getRotation()+1);
  }
}

Testcode “QRCODE” using adafruit library and qrcode generator #

Icoon

QRCodeGenerator-1.0.0.zip #

1 bestand(en) 89.29 KB
Downloaden

Source: https://github.com/felixerdy/QRCodeGenerator

#include <Adafruit_GFX.h>      // Core graphics library
#include <Adafruit_ST7735.h>   // Hardware-specific library for ST7735
#include <SPI.h>
#include "QRCodeGenerator.h"

#define TFT_CS   D3 // 21
#define TFT_RST  D2 // Of -1 als je de reset pin niet gebruikt
#define TFT_DC   D4

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

void setup() {
  Serial.begin(9600);
  Serial.println("QR Code op Adafruit ST7735 scherm");

  tft.initR(INITR_144GREENTAB); // Initialiseer het scherm
  tft.setRotation(1);           // Pas aan indien nodig
  tft.fillScreen(ST77XX_WHITE);

  // QR-code genereren en tonen
  drawQRCode("https://domoticx.net");
}

void drawQRCode(const char* text) {
  QRCode qrcode;
  uint8_t qrData[qrcode_getBufferSize(3)]; // QR-code versie 3 (29x29 pixels)
  qrcode_initText(&qrcode, qrData, 3, ECC_LOW, text);

  int qrSize = qrcode.size;
  int scale = 4; // Pas aan voor een grotere QR-code
  int offsetX = (tft.width() - qrSize * scale) / 2;
  int offsetY = (tft.height() - qrSize * scale) / 2;

  for (int y = 0; y < qrSize; y++) {
    for (int x = 0; x < qrSize; x++) {
      tft.fillRect(offsetX + x * scale, offsetY + y * scale, scale, scale, 
      qrcode_getModule(&qrcode, x, y) ? ST77XX_BLACK : ST77XX_WHITE);
    }
  }
}

void loop() {
  delay(50);
  // Geen code nodig in loop
}

Result

oplus_0

Products #

Sources #

None