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es8266 ILI9341 LCD显示屏驱动测试代码
接线:
- CS pin is connected to D2 (ESP8266EX GPIO4),
- RST pin is connected to D3 (ESP8266EX GPIO0),
- D/C pin is connected to D4 (ESP8266EX GPIO2),
- MOSI pin is connected to D7 (ESP8266EX GPIO13),
- SCK pin is connected to D5 (ESP8266EX GPIO14),
- VCC and BL are connected to pin 3V3,
- GND is connected to pin GND of the NodeMCU board.
- #include <Adafruit_GFX.h> // include Adafruit graphics library
- #include <Adafruit_ILI9341.h> // include Adafruit ILI9341 TFT library
-
- #define TFT_CS D2 // TFT CS pin is connected to NodeMCU pin D2
- #define TFT_RST D3 // TFT RST pin is connected to NodeMCU pin D3
- #define TFT_DC D4 // TFT DC pin is connected to NodeMCU pin D4
- // initialize ILI9341 TFT library with hardware SPI module
- // SCK (CLK) ---> NodeMCU pin D5 (GPIO14)
- // MOSI(DIN) ---> NodeMCU pin D7 (GPIO13)
- Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);
-
- void setup() {
- Serial.begin(9600);
- Serial.println("ILI9341 Test!");
-
- tft.begin();
-
- // read diagnostics (optional but can help debug problems)
- uint8_t x = tft.readcommand8(ILI9341_RDMODE);
- Serial.print("Display Power Mode: 0x"); Serial.println(x, HEX);
- x = tft.readcommand8(ILI9341_RDMADCTL);
- Serial.print("MADCTL Mode: 0x"); Serial.println(x, HEX);
- x = tft.readcommand8(ILI9341_RDPIXFMT);
- Serial.print("Pixel Format: 0x"); Serial.println(x, HEX);
- x = tft.readcommand8(ILI9341_RDIMGFMT);
- Serial.print("Image Format: 0x"); Serial.println(x, HEX);
- x = tft.readcommand8(ILI9341_RDSELFDIAG);
- Serial.print("Self Diagnostic: 0x"); Serial.println(x, HEX);
-
- Serial.println(F("Benchmark Time (microseconds)"));
-
- Serial.print(F("Screen fill "));
- Serial.println(testFillScreen());
- delay(500);
-
- Serial.print(F("Text "));
- Serial.println(testText());
- delay(3000);
-
- Serial.print(F("Lines "));
- Serial.println(testLines(ILI9341_CYAN));
- delay(500);
-
- Serial.print(F("Horiz/Vert Lines "));
- Serial.println(testFastLines(ILI9341_RED, ILI9341_BLUE));
- delay(500);
-
- Serial.print(F("Rectangles (outline) "));
- Serial.println(testRects(ILI9341_GREEN));
- delay(500);
-
- Serial.print(F("Rectangles (filled) "));
- Serial.println(testFilledRects(ILI9341_YELLOW, ILI9341_MAGENTA));
- delay(500);
-
- Serial.print(F("Circles (filled) "));
- Serial.println(testFilledCircles(10, ILI9341_MAGENTA));
-
- Serial.print(F("Circles (outline) "));
- Serial.println(testCircles(10, ILI9341_WHITE));
- delay(500);
-
- Serial.print(F("Triangles (outline) "));
- Serial.println(testTriangles());
- delay(500);
-
- Serial.print(F("Triangles (filled) "));
- Serial.println(testFilledTriangles());
- delay(500);
-
- Serial.print(F("Rounded rects (outline) "));
- Serial.println(testRoundRects());
- delay(500);
-
- Serial.print(F("Rounded rects (filled) "));
- Serial.println(testFilledRoundRects());
- delay(500);
-
- Serial.println(F("Done!"));
-
- }
-
-
- void loop(void) {
- for(uint8_t rotation=0; rotation<4; rotation++) {
- tft.setRotation(rotation);
- testText();
- delay(1000);
- }
- }
-
- unsigned long testFillScreen() {
- unsigned long start = micros();
- tft.fillScreen(ILI9341_BLACK);
- tft.fillScreen(ILI9341_RED);
- tft.fillScreen(ILI9341_GREEN);
- tft.fillScreen(ILI9341_BLUE);
- tft.fillScreen(ILI9341_BLACK);
- return micros() - start;
- }
-
- unsigned long testText() {
- tft.fillScreen(ILI9341_BLACK);
- unsigned long start = micros();
- tft.setCursor(0, 0);
- tft.setTextColor(ILI9341_WHITE); tft.setTextSize(1);
- tft.println("Hello World!");
- tft.setTextColor(ILI9341_YELLOW); tft.setTextSize(2);
- tft.println(1234.56);
- tft.setTextColor(ILI9341_RED); tft.setTextSize(3);
- tft.println(0xDEADBEEF, HEX);
- tft.println();
- tft.setTextColor(ILI9341_GREEN);
- tft.setTextSize(5);
- tft.println("Groop");
- tft.setTextSize(2);
- tft.println("I implore thee,");
- tft.setTextSize(1);
- tft.println("my foonting turlingdromes.");
- tft.println("And hooptiously drangle me");
- tft.println("with crinkly bindlewurdles,");
- tft.println("Or I will rend thee");
- tft.println("in the gobberwarts");
- tft.println("with my blurglecruncheon,");
- tft.println("see if I don't!");
- return micros() - start;
- }
-
- unsigned long testLines(uint16_t color) {
- unsigned long start, t;
- int x1, y1, x2, y2,
- w = tft.width(),
- h = tft.height();
-
- tft.fillScreen(ILI9341_BLACK);
-
- x1 = y1 = 0;
- y2 = h - 1;
- start = micros();
- for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color);
- x2 = w - 1;
- for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color);
- t = micros() - start; // fillScreen doesn't count against timing
-
- tft.fillScreen(ILI9341_BLACK);
-
- x1 = w - 1;
- y1 = 0;
- y2 = h - 1;
- start = micros();
- for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color);
- x2 = 0;
- for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color);
- t += micros() - start;
-
- tft.fillScreen(ILI9341_BLACK);
-
- x1 = 0;
- y1 = h - 1;
- y2 = 0;
- start = micros();
- for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color);
- x2 = w - 1;
- for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color);
- t += micros() - start;
-
- tft.fillScreen(ILI9341_BLACK);
-
- x1 = w - 1;
- y1 = h - 1;
- y2 = 0;
- start = micros();
- for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color);
- x2 = 0;
- for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color);
-
- return micros() - start;
- }
-
- unsigned long testFastLines(uint16_t color1, uint16_t color2) {
- unsigned long start;
- int x, y, w = tft.width(), h = tft.height();
-
- tft.fillScreen(ILI9341_BLACK);
- start = micros();
- for(y=0; y<h; y+=5) tft.drawFastHLine(0, y, w, color1);
- for(x=0; x<w; x+=5) tft.drawFastVLine(x, 0, h, color2);
-
- return micros() - start;
- }
-
- unsigned long testRects(uint16_t color) {
- unsigned long start;
- int n, i, i2,
- cx = tft.width() / 2,
- cy = tft.height() / 2;
-
- tft.fillScreen(ILI9341_BLACK);
- n = min(tft.width(), tft.height());
- start = micros();
- for(i=2; i<n; i+=6) {
- i2 = i / 2;
- tft.drawRect(cx-i2, cy-i2, i, i, color);
- }
-
- return micros() - start;
- }
-
- unsigned long testFilledRects(uint16_t color1, uint16_t color2) {
- unsigned long start, t = 0;
- int n, i, i2,
- cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
-
- tft.fillScreen(ILI9341_BLACK);
- n = min(tft.width(), tft.height());
- for(i=n; i>0; i-=6) {
- i2 = i / 2;
- start = micros();
- tft.fillRect(cx-i2, cy-i2, i, i, color1);
- t += micros() - start;
- // Outlines are not included in timing results
- tft.drawRect(cx-i2, cy-i2, i, i, color2);
- }
-
- return t;
- }
-
- unsigned long testFilledCircles(uint8_t radius, uint16_t color) {
- unsigned long start;
- int x, y, w = tft.width(), h = tft.height(), r2 = radius * 2;
-
- tft.fillScreen(ILI9341_BLACK);
- start = micros();
- for(x=radius; x<w; x+=r2) {
- for(y=radius; y<h; y+=r2) {
- tft.fillCircle(x, y, radius, color);
- }
- }
-
- return micros() - start;
- }
-
- unsigned long testCircles(uint8_t radius, uint16_t color) {
- unsigned long start;
- int x, y, r2 = radius * 2,
- w = tft.width() + radius,
- h = tft.height() + radius;
-
- // Screen is not cleared for this one -- this is
- // intentional and does not affect the reported time.
- start = micros();
- for(x=0; x<w; x+=r2) {
- for(y=0; y<h; y+=r2) {
- tft.drawCircle(x, y, radius, color);
- }
- }
-
- return micros() - start;
- }
-
- unsigned long testTriangles() {
- unsigned long start;
- int n, i, cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
-
- tft.fillScreen(ILI9341_BLACK);
- n = min(cx, cy);
- start = micros();
- for(i=0; i<n; i+=5) {
- tft.drawTriangle(
- cx , cy - i, // peak
- cx - i, cy + i, // bottom left
- cx + i, cy + i, // bottom right
- tft.color565(0, 0, i));
- }
-
- return micros() - start;
- }
-
- unsigned long testFilledTriangles() {
- unsigned long start, t = 0;
- int i, cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
-
- tft.fillScreen(ILI9341_BLACK);
- start = micros();
- for(i=min(cx,cy); i>10; i-=5) {
- start = micros();
- tft.fillTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i,
- tft.color565(0, i, i));
- t += micros() - start;
- tft.drawTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i,
- tft.color565(i, i, 0));
- }
-
- return t;
- }
-
- unsigned long testRoundRects() {
- unsigned long start;
- int w, i, i2,
- cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
-
- tft.fillScreen(ILI9341_BLACK);
- w = min(tft.width(), tft.height());
- start = micros();
- for(i=0; i<w; i+=6) {
- i2 = i / 2;
- tft.drawRoundRect(cx-i2, cy-i2, i, i, i/8, tft.color565(i, 0, 0));
- }
-
- return micros() - start;
- }
-
- unsigned long testFilledRoundRects() {
- unsigned long start;
- int i, i2,
- cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
-
- tft.fillScreen(ILI9341_BLACK);
- start = micros();
- for(i=min(tft.width(), tft.height()); i>20; i-=6) {
- i2 = i / 2;
- tft.fillRoundRect(cx-i2, cy-i2, i, i, i/8, tft.color565(0, i, 0));
- }
-
- return micros() - start;
- }
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