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@caa45040(caa45040)

ESP32で液晶(ST7735(P))で遊ぶ(白黒)

Last updated at Posted at 2023-07-15

ESP32で液晶(ST7735(P))で遊ぶ

目的
液晶のテスト

いろいろ
検討に時間が掛って闇に潜っていた。
カラー化とRAM容量とコストでバランスを見ていた

例の液晶

１．７７インチ　カラーグラフィックＴＦＴ　ＬＣＤ（１２８×（ＲＧＢ）×１６０ドット）　ＡＴＭ０１７７Ｂ５
[ATM0177B5]
通販コード　P-15694
発売日　2020/11/30

o_cop621.jpg

o_cop622.jpg





//OLED_SSD1306_BITMAP_DV67_UNO


//ヘッダーファイル
#include <Adafruit_GFX.h>
#include "hh.h"

//定義
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 160 // OLED display height, in pixels
NA_ST7735_P display(SCREEN_WIDTH, SCREEN_HEIGHT);


// ビットマップデータ
uint8_t databytes[8] = 

{

0b01100110,
0b10101111,
0b10111111,
0b11011111,

0b01111110,
0b01111110,
0b00111100,
0b00011000

};


//初期化
void setup() {

  // I2Cアドレスは使用するディスプレイに合わせて変更する
  display.begin();

}//setup


//メインループ
void loop() {

  // 画面表示をクリア
  display.clearDisplay();

  //ビットマップの表示
  display.drawBitmap(0, 0, databytes, 8, 8,  WHITE);



  // テキストサイズを設定
  display.setTextSize(3);
  // テキスト色を設定
  display.setTextColor(WHITE);
  // テキストの開始位置を設定
  display.setCursor(20, 20);


  // 1行目に46を表示
  display.println("123");

  // 画面の左側に長方形(塗りつぶしなし)を描画
  // display.drawRect(左上x, 左上y, 幅, 高さ, 線の色)
  display.drawRect(0, 0, 127, 63, WHITE);
  display.drawRect(0, 0, 127, 159, WHITE);

  // 描画バッファの内容を画面に表示
  display.display();

  delay(1000); //1秒待つ

}//loop

hh.cpp




#ifdef __AVR__
#include <avr/pgmspace.h>
#elif defined(ESP8266) || defined(ESP32) || defined(ARDUINO_ARCH_RP2040)
#include <pgmspace.h>
#else
#define pgm_read_byte(addr)                                                    \
  (*(const unsigned char *)(addr)) ///< PROGMEM workaround for non-AVR
#endif

#if !defined(__ARM_ARCH) && !defined(ENERGIA) && !defined(ESP8266) &&          \
    !defined(ESP32) && !defined(__arc__)
#include <util/delay.h>
#endif

#include "hh.h"
#include <Adafruit_GFX.h>



#define NA_ST7735_P_swap(a, b)                                                     \
  (((a) ^= (b)), ((b) ^= (a)), ((a) ^= (b))) ///< No-temp-var swap operation

/*
//GPIOの設定1　開始

//GPIO
#define GPIO_A0_P A0
#define GPIO_A1_P A1
#define GPIO_A2_P A2
#define GPIO_A3_P A3

//GPIO
#define GPIO_A0(s) digitalWrite(GPIO_A0_P,s)
#define GPIO_A1(s) digitalWrite(GPIO_A1_P,s)
#define GPIO_A2(s) digitalWrite(GPIO_A2_P,s)
#define GPIO_A3(s) digitalWrite(GPIO_A3_P,s)

#define GPIO_RD_P     GPIO_A3_P //RD=1
#define GPIO_WR_P     GPIO_A2_P //WR=1
#define GPIO_RS_P     GPIO_A1_P //RS=0
#define GPIO_RESET_P  GPIO_A0_P //RESET=1


#define GPIO_RD(y)     GPIO_A3(y) //RD=1
#define GPIO_WR(y)     GPIO_A2(y) //WR=1
#define GPIO_RS(y)     GPIO_A1(y) //RS=0
#define GPIO_RESET(y)  GPIO_A0(y) //RESET=1


#define GPIO_DB7  7
#define GPIO_DB6  6
#define GPIO_DB5  5
#define GPIO_DB4  4
#define GPIO_DB3  3
#define GPIO_DB2  2
#define GPIO_DB1  A5
#define GPIO_DB0  A4

//GPIOの設定1　終了
*/

/*

//GPIOの設定2　開始

//GPIO
#define GPIO_A4_P A4
#define GPIO_A5_P A5
#define GPIO_D3_P 3
#define GPIO_D2_P 2

//GPIO
#define GPIO_A4(s) digitalWrite(GPIO_A4_P,s)
#define GPIO_A5(s) digitalWrite(GPIO_A5_P,s)
#define GPIO_D3(s) digitalWrite(GPIO_D3_P,s)
#define GPIO_D2(s) digitalWrite(GPIO_D2_P,s)


#define GPIO_RD_P     GPIO_A4_P //RD=1
#define GPIO_WR_P     GPIO_D3_P //WR=1
#define GPIO_RS_P     GPIO_A5_P //RS=0
#define GPIO_RESET_P  GPIO_D2_P //RESET=1

#define GPIO_RD(y)    GPIO_A4(y) //RD=1
#define GPIO_WR(y)    GPIO_D3(y) //WR=0
#define GPIO_RS(y)    GPIO_A5(y) //RS=0
#define GPIO_RESET(y) GPIO_D2(y) //RESET=1


#define GPIO_DB7  A0
#define GPIO_DB6   7
#define GPIO_DB5  A1
#define GPIO_DB4   6
#define GPIO_DB3  A2
#define GPIO_DB2   5
#define GPIO_DB1  A3
#define GPIO_DB0   4

//GPIOの設定2　終了

*/


///*

//GPIOの設定3　開始

//GPIO
#define GPIO_D32_P 32
#define GPIO_D33_P 33
#define GPIO_D19_P 19
#define GPIO_D18_P 18

//GPIO
#define GPIO_D32(s) digitalWrite(GPIO_D32_P,s)
#define GPIO_D33(s) digitalWrite(GPIO_D33_P,s)
#define GPIO_D19(s) digitalWrite(GPIO_D19_P,s)
#define GPIO_D18(s) digitalWrite(GPIO_D18_P,s)


#define GPIO_RD_P     GPIO_D33_P //RD=1
#define GPIO_WR_P     GPIO_D18_P //WR=1
#define GPIO_RS_P     GPIO_D32_P //RS=0
#define GPIO_RESET_P  GPIO_D19_P //RESET=1

#define GPIO_RD(y)    GPIO_D33(y) //RD=1
#define GPIO_WR(y)    GPIO_D18(y) //WR=0
#define GPIO_RS(y)    GPIO_D32(y) //RS=0
#define GPIO_RESET(y) GPIO_D19(y) //RESET=1


#define GPIO_DB7  14
#define GPIO_DB6  4
#define GPIO_DB5  27
#define GPIO_DB4  16
#define GPIO_DB3  26
#define GPIO_DB2  17
#define GPIO_DB1  25
#define GPIO_DB0  5

//GPIOの設定3　終了

//*/


void NA_ST7735_P::GPIO_8BIT(uint8_t s)
{
  digitalWrite( GPIO_DB7, (s >> 7) & 1);
  digitalWrite( GPIO_DB6, (s >> 6) & 1);
  digitalWrite( GPIO_DB5, (s >> 5) & 1);
  digitalWrite( GPIO_DB4, (s >> 4) & 1);
  digitalWrite( GPIO_DB3, (s >> 3) & 1);
  digitalWrite( GPIO_DB2, (s >> 2) & 1);
  digitalWrite( GPIO_DB1, (s >> 1) & 1);
  digitalWrite( GPIO_DB0, s & 1);
} //GPIO_8BIT

//コマンドの書き込み
void NA_ST7735_P::LCD_Write_CMD(uint8_t a)
{
  GPIO_RS(0); //A0=0;
  GPIO_8BIT(a);//P1=a; data
  GPIO_WR(0);//WRB=0;
  GPIO_WR(1);//WRB=1;
} //LCD_Write_CMD


//データ書き込み
void NA_ST7735_P::LCD_Write_Data(uint8_t a)
{
  GPIO_RS(1);//A0=1;
  GPIO_8BIT(a);//P1=a; data
  GPIO_WR(0);//WRB=0;
  GPIO_WR(1);//WRB=1;
} //LCD_Write_Data


//液晶の初期化処理
void NA_ST7735_P::TXDT144TF_ST7735S_Init(void)
{

  //----------  ST7735S Reset Sequence  --------//

  GPIO_RESET(1);//LCD_RESET=1;

  delay(1); //Delay 1ms

  GPIO_RESET(0);//LCD_RESET=0;

  delay(1); //Delay 1ms

  GPIO_RESET(1);//LCD_RESET=1;

  delay(120); //Delay 120ms

  LCD_Write_CMD(0x01);//SOFTWARE RESET
  delay(50);

  LCD_Write_CMD(0x11);//SLEEP OUT
  delay(200);

  LCD_Write_CMD(0x29);//display on
  delay(100);

  LCD_Write_CMD(0x3a);//Interface pixel format
  LCD_Write_Data(0x05);//16bit mode
  delay(100);

  LCD_Write_CMD(0x36);//RGB-RGR format
  LCD_Write_Data(0x08);//RGB mode
  delay(100);

} //TXDT144TF_ST7735S_Init



NA_ST7735_P::NA_ST7735_P(uint8_t w, uint8_t h)
    : Adafruit_GFX(w, h), buffer(NULL)

{
}


//バッファのクリア
NA_ST7735_P::~NA_ST7735_P(void) {
  if (buffer) {
    free(buffer);
    buffer = NULL;
  }
}//~NA_ST7735_P



//初期処理
bool NA_ST7735_P::begin(void) {

  if ((!buffer) && !(buffer = (uint8_t *)malloc(WIDTH * ((HEIGHT + 7) / 8))))
    return false;

  //バッファーのクリア
  clearDisplay();

  //ポートのモード設定
  //アウトプットモード
  pinMode(GPIO_DB7, OUTPUT);
  pinMode(GPIO_DB6, OUTPUT);
  pinMode(GPIO_DB5, OUTPUT);
  pinMode(GPIO_DB4, OUTPUT);
  pinMode(GPIO_DB3, OUTPUT);
  pinMode(GPIO_DB2, OUTPUT);

  pinMode(GPIO_RESET_P, OUTPUT);
  pinMode(GPIO_RS_P, OUTPUT);
  pinMode(GPIO_WR_P, OUTPUT);
  pinMode(GPIO_RD_P, OUTPUT);
  pinMode(GPIO_DB0, OUTPUT);
  pinMode(GPIO_DB1, OUTPUT);

  //ポートの初期化
  GPIO_RD(1);//RD=1
  GPIO_WR(1);//WR=1
  GPIO_RS(0);//RS=0
  GPIO_RESET(1);//RESET=1

  delay(500); //0.5秒待つ

  //液晶の初期化処理
  TXDT144TF_ST7735S_Init();

  //画面の書き込み開始
  display();

  return true; // Success
}//begin


//点の表示
void NA_ST7735_P::drawPixel(int16_t x, int16_t y, uint16_t color) {
  if ((x >= 0) && (x < width()) && (y >= 0) && (y < height())) {
    // Pixel is in-bounds. Rotate coordinates if needed.
    switch (getRotation()) {
    case 1:
      NA_ST7735_P_swap(x, y);
      x = WIDTH - x - 1;
      break;
    case 2:
      x = WIDTH - x - 1;
      y = HEIGHT - y - 1;
      break;
    case 3:
      NA_ST7735_P_swap(x, y);
      y = HEIGHT - y - 1;
      break;
    }
    switch (color) {
    case NA_ST7735_P_WHITE:
      buffer[(x/8) +    (y * 16)  ] |=  (1 << (7-(x & 7)));
      break;
    case NA_ST7735_P_BLACK:
      buffer[(x/8) +    (y * 16)  ] &= ~(1 << (7-(x & 7)));
      break;
    case NA_ST7735_P_INVERSE:
      buffer[(x/8) +    (y * 16)  ] ^=  (1 << (7-(x & 7)));
      break;
    }
  }
}


//バッファのクリア
void NA_ST7735_P::clearDisplay(void) {
  memset(buffer, 0, WIDTH * ((HEIGHT + 7) / 8));
}



bool NA_ST7735_P::getPixel(int16_t x, int16_t y) {
  if ((x >= 0) && (x < width()) && (y >= 0) && (y < height())) {
    // Pixel is in-bounds. Rotate coordinates if needed.
    switch (getRotation()) {
    case 1:
      NA_ST7735_P_swap(x, y);
      x = WIDTH - x - 1;
      break;
    case 2:
      x = WIDTH - x - 1;
      y = HEIGHT - y - 1;
      break;
    case 3:
      NA_ST7735_P_swap(x, y);
      y = HEIGHT - y - 1;
      break;
    }
    return (buffer[x + (y / 8) * WIDTH] & (1 << (y & 7)));
  }
  return false; // Pixel out of bounds
}


uint8_t *NA_ST7735_P::getBuffer(void) { return buffer; }


void NA_ST7735_P::display(void) {

#if defined(ESP8266)
  // ESP8266 needs a periodic yield() call to avoid watchdog reset.
  // With the limited size of SSD1306 displays, and the fast bitrate
  // being used (1 MHz or more), I think one yield() immediately before
  // a screen write and one immediately after should cover it.  But if
  // not, if this becomes a problem, yields() might be added in the
  // 32-byte transfer condition below.
  yield();
#endif

  uint16_t count = WIDTH * ((HEIGHT + 7) / 8);
  uint8_t *ptr = buffer;

    while (count--) {

      //WIRE_WRITE(*ptr++);
    }

  //画面の書き込み開始
  LCD_Write_CMD(0x2C); //memory write

    GPIO_RS(1);//A0=1;

  int jjk=0,vg=0;
  int hp[8]={0x80,0x40,0x20,0x10,  0x08,0x04,0x02,0x01};
  for (int i = 0; i < HEIGHT; i++) {
    for (int j = 0; j < (128/8); j++) {

      vg=ptr[jjk];
      for(int k=0;k < 8;k++){
        if ( ( vg & hp[k]) == 0 ) {GPIO_8BIT(0x00);} else {GPIO_8BIT(0xff);}

        GPIO_WR(0);//WRB=0; 10
        GPIO_WR(1);//WRB=1; 10

        GPIO_WR(0);//WRB=0; 10
        GPIO_WR(1);//WRB=1; 10
      }//k
      jjk++;

    } //j
  }//i

#if defined(ESP8266)
  yield();
#endif
}//display

hh.h




#ifndef _NA_ST7735_P_H_
#define _NA_ST7735_P_H_

#include <Adafruit_GFX.h>

#ifndef NO_ADAFRUIT_NA_ST7735_P_COLOR_COMPATIBILITY
#define BLACK NA_ST7735_P_BLACK     ///< Draw 'off' pixels
#define WHITE NA_ST7735_P_WHITE     ///< Draw 'on' pixels
#define INVERSE NA_ST7735_P_INVERSE ///< Invert pixels
#endif
/// fit into the SSD1306_ naming scheme
#define NA_ST7735_P_BLACK 0   ///< Draw 'off' pixels
#define NA_ST7735_P_WHITE 1   ///< Draw 'on' pixels
#define NA_ST7735_P_INVERSE 2 ///< Invert pixels


class NA_ST7735_P : public Adafruit_GFX {
public:

  NA_ST7735_P(uint8_t w, uint8_t h);

  ~NA_ST7735_P(void);

  bool begin(void);
  void display(void);
  void clearDisplay(void);
  void drawPixel(int16_t x, int16_t y, uint16_t color);
  bool getPixel(int16_t x, int16_t y);
  uint8_t *getBuffer(void);

  void GPIO_8BIT(uint8_t s);
  void LCD_Write_CMD(uint8_t ww);
  void LCD_Write_Data(uint8_t ii);
  void TXDT144TF_ST7735S_Init(void);


protected:


  uint8_t *buffer; ///< Buffer data used for display buffer. Allocated when
                   ///< begin method is called.

};

#endif // _NA_ST7735_P_H_
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