Arduino +合宙ESP32C3 +1.8/1.44 寸TFT液晶屏驱动显示
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Arduino +合宙ESP32C3 +1.8/1.44 寸TFT液晶屏驱动显示
- Arduino IDE找不到
ESP32C3的请看我前面那篇文章《合宙ESP32C3 Arduino 初探教程》，当然也可以参考其他优秀的文章，来搭建esp32C3。
合宙ESP32C3配合合宙的1.8寸TFT液晶屏屏幕
引脚定义
#define TFT_SCLK 2 // Clock out
#define TFT_MOSI 3 // Data out
#define TFT_RST 10
#define TFT_DC 6
#define TFT_CS 7
#define TFT_BL 11 （可不接）
- 从上面的两张图的引脚分布和LCD屏幕引脚定义正好是相对应的。可以直接对插。
- 如果是买的合体的，那么只需要修改setup函数中的屏幕初始化函数：
tft.initR(INITR_144GREENTAB);启用这个，注释掉原1.8的屏幕的初始化函数tft.initR(INITR_BLACKTAB);即可点亮。
所需库
-
Adafruit_GFX：
-
Adafruit_BusIO：
-
Adafruit_ST7735_and_ST7789_Library：
驱动代码
/*所需库点击这里会自动打开管理库页面: http://librarymanager/All#Adafruit_BusIO
* This is an example sketch that shows how to toggle the display
* on and off at runtime to avoid screen burn-in.
*
* The sketch also demonstrates how to erase a previous value by re-drawing the
* older value in the screen background color prior to writing a new value in
* the same location. This avoids the need to call fillScreen() to erase the
* entire screen followed by a complete redraw of screen contents.
*
* Originally written by Phill Kelley. BSD license.
* Adapted for ST77xx by Melissa LeBlanc-Williams
*/
#include <Adafruit_GFX.h> //点击这里会自动打开管理库页面: http://librarymanager/All#Adafruit_GFX
#include <Adafruit_ST7735.h> // 点击这里会自动打开管理库页面: http://librarymanager/All#Adafruit_ST7735
//#include <Adafruit_ST7789.h> // Hardware-specific library for ST7789
#include <SPI.h>
#ifdef ADAFRUIT_HALLOWING
#define TFT_CS 7 // Hallowing display control pins: chip select
#define TFT_RST 10 // Display reset
#define TFT_DC 6 // Display data/command select
#define TFT_BACKLIGHT 11 // Display backlight pin
#elif defined(ARDUINO_FEATHER_ESP32) // Feather Huzzah32
#define TFT_SCLK 2 // Clock out
#define TFT_MOSI 3 // Data out
#define TFT_RST 10
#define TFT_DC 6
#define TFT_CS 7
#define TFT_BL 11
#elif defined(ESP8266)
#define TFT_CS 4
#define TFT_RST 16
#define TFT_DC 5
#else
// For the breakout board, you can use any 2 or 3 pins.
// These pins will also work for the 1.8" TFT shield.
#define TFT_CS 7
#define TFT_RST 10 // Or set to -1 and connect to Arduino RESET pin
#define TFT_DC 6
#endif
#define SerialDebugging true
// OPTION 1 (recommended) is to use the HARDWARE SPI pins, which are unique
// to each board and not reassignable. For Arduino Uno: MOSI = pin 11 and
// SCLK = pin 13. This is the fastest mode of operation and is required if
// using the breakout board's microSD card.
// For 1.44" and 1.8" TFT with ST7735 (including HalloWing) use:
//Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST);
// For 1.3", 1.54", and 2.0" TFT with ST7789:
//Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_RST);
// OPTION 2 lets you interface the display using ANY TWO or THREE PINS,
// tradeoff being that performance is not as fast as hardware SPI above.
#define TFT_MOSI 3 // Data out
#define TFT_SCLK 2 // Clock out
Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_MOSI, TFT_SCLK, TFT_RST);
// connect a push button between ground and...
const uint8_t Button_pin = 4;
// color definitions
const uint16_t Display_Color_Black = 0x0000; //黑色
const uint16_t Display_Color_Red = 0x001F; //红色
const uint16_t Display_Color_Blue = 0xF800; //蓝色
const uint16_t Display_Color_Green = 0x07E0; //绿色
const uint16_t Display_Color_Yellow = 0x07FF; //黄色
const uint16_t Display_Color_Magenta = 0xF81F; //洋红
const uint16_t Display_Color_Cyan = 0xFFE0; //青色
const uint16_t Display_Color_White = 0xFFFF; //白色
// The colors we actually want to use
uint16_t Display_Text_Color = Display_Color_Black;
uint16_t Display_Backround_Color = Display_Color_Yellow;
// assume the display is off until configured in setup()
bool isDisplayVisible = false;
// declare size of working string buffers. Basic strlen("d hh:mm:ss") = 10
const size_t MaxString = 16;
// the string being displayed on the SSD1331 (initially empty)
char oldTimeString[MaxString] = 0 ;
// the interrupt service routine affects this
volatile bool isButtonPressed = false;
// interrupt service routine
void senseButtonPressed()
if (!isButtonPressed)
isButtonPressed = true;
void displayUpTime()
// calculate seconds, truncated to the nearest whole second
unsigned long upSeconds = millis() / 1000;
// calculate days, truncated to nearest whole day
unsigned long days = upSeconds / 86400;
// the remaining hhmmss are
upSeconds = upSeconds % 86400;
// calculate hours, truncated to the nearest whole hour
unsigned long hours = upSeconds / 3600;
// the remaining mmss are
upSeconds = upSeconds % 3600;
// calculate minutes, truncated to the nearest whole minute
unsigned long minutes = upSeconds / 60;
// the remaining ss are
upSeconds = upSeconds % 60;
// allocate a buffer
char newTimeString[MaxString] = 0 ;
// construct the string representation
sprintf(
newTimeString,
"%lu %02lu:%02lu:%02lu",
days, hours, minutes, upSeconds
);
// has the time string changed since the last tft update?
if (strcmp(newTimeString,oldTimeString) != 0)
// yes! home the cursor
tft.setCursor(10,80); //(列，行)
// change the text color to the background color
tft.setTextColor(Display_Backround_Color);
// redraw the old value to erase
tft.print(oldTimeString);
// home the cursor
tft.setCursor(10,80);
// change the text color to foreground color
tft.setTextColor(Display_Text_Color);
// draw the new time value
tft.print(newTimeString);
// and remember the new value
strcpy(oldTimeString,newTimeString);
void setup()
// button press pulls pin LOW so configure HIGH
pinMode(Button_pin,INPUT_PULLUP);
// use an interrupt to sense when the button is pressed
attachInterrupt(digitalPinToInterrupt(Button_pin), senseButtonPressed, FALLING);
#if (SerialDebugging)
Serial.begin(115200); while (!Serial); Serial.println();
#endif
// settling time
delay(250);
// ignore any power-on-reboot garbage
isButtonPressed = false;
#ifdef ADAFRUIT_HALLOWING
// HalloWing is a special case. It uses a ST7735R display just like the
// breakout board, but the orientation and backlight control are different.
tft.initR(INITR_HALLOWING); // Initialize HalloWing-oriented screen
pinMode(TFT_BACKLIGHT, OUTPUT);
digitalWrite(TFT_BACKLIGHT, HIGH); // Backlight on
#else
// Use this initializer if using a 1.8" TFT screen:128x160
tft.initR(INITR_BLACKTAB); // Init ST7735S chip, black tab
// OR use this initializer (uncomment) if using a 1.44" TFT:
//tft.initR(INITR_144GREENTAB); // Init ST7735R chip, green tab
// OR use this initializer (uncomment) if using a 0.96" 180x60 TFT:
// tft.initR(INITR_MINI160x80); // Init ST7735S mini display
// OR use this initializer (uncomment) if using a 1.54" 240x240 TFT:
//tft.init(240, 240); // Init ST7789 240x240
// OR use this initializer (uncomment) if using a 2.0" 320x240 TFT:
//tft.init(240, 320); // Init ST7789 320x240
// 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);
#endif
// initialise the display
tft.setFont();
tft.fillScreen(Display_Backround_Color);
tft.setTextColor(Display_Text_Color);
tft.setTextSize(1);
// the display is now on
isDisplayVisible = true;
void loop()
// unconditional display, regardless of whether display is visible
displayUpTime();
// has the button been pressed?
if (isButtonPressed)
// yes! toggle display visibility
isDisplayVisible = !isDisplayVisible;
// apply
tft.enableDisplay(isDisplayVisible);
#if (SerialDebugging)
Serial.print("button pressed @ ");
Serial.print(millis());
Serial.print(", display is now ");
Serial.println((isDisplayVisible ? "ON" : "OFF"));
#endif
// confirm button handled
isButtonPressed = false;
// no need to be in too much of a hurry
delay(100);
- 编译信息
使用 1.10.10 版本的库 Adafruit_GFX 在文件夹： C:\\Users\\Administrator\\Documents\\Arduino\\libraries\\Adafruit_GFX
使用 1.7.3 版本的库 Adafruit_ST7735_and_ST7789_Library 在文件夹： C:\\Users\\Administrator\\Documents\\Arduino\\libraries\\Adafruit_ST7735_and_ST7789_Library
使用 2.0.0 版本的库 SPI 在文件夹： C:\\Users\\Administrator\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6\\libraries\\SPI
使用 1.11.6 版本的库 Adafruit_BusIO-master 在文件夹： C:\\Program Files (x86)\\Arduino\\libraries\\Adafruit_BusIO-master
使用 2.0.0 版本的库 Wire 在文件夹： C:\\Users\\Administrator\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\1.0.6\\libraries\\Wire
"C:\\\\Users\\\\Administrator\\\\AppData\\\\Local\\\\Arduino15\\\\packages\\\\esp32\\\\hardware\\\\esp32\\\\1.0.6/tools/riscv32-esp-elf/bin/riscv32-esp-elf-size" -A "d:\\\\arduino\\\\MyHexDir/luatos_LCD.ino.elf"
项目使用了 250174 字节，占用了 (19%) 程序存储空间。最大为 1310720 字节。
全局变量使用了11356字节，(3%)的动态内存，余留316324字节局部变量。最大为327680字节。
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