您好,我希望这是正确的类别。
但我正在尝试在我的 wemos D1 mini 上运行 SPI 驱动的 tft 模块。
tft 模块是准确的!!我正在使用的一个。其他人有一个 CS 端口。我不明白的是接线永远不会连接。链接中的代码是这样的。
代码:
全选/***************************************************
This is a library for the ST7789 IPS SPI display.
Originally written by Limor Fried/Ladyada for Adafruit Industries.
Modified by Ananev Ilia
Further modified by Ken Hahn - ProtoSupplies.com
****************************************************/
#include // Core graphics library by Adafruit
#include // Library for ST7789 (with or without CS pin)
#include
#define TFT_DC 8 // Data/Command
#define TFT_RST 9 // ST7789 Reset
#define TFT_MOSI 11 // SPI data pin
#define TFT_SCLK 13 // SPI sclk pin
// For Hardware SPI
// Using hardware SPI pins (11, 13 on UNO; 51, 52 on MEGA; ICSP-4, ICSP-3 on DUE and etc)
Arduino_ST7789 tft = Arduino_ST7789(TFT_DC, TFT_RST); //for display without CS pin
// Using software SPI on any available pins. Define above if changes are needed (slower)
//Arduino_ST7789 tft = Arduino_ST7789(TFT_DC, TFT_RST, TFT_MOSI, TFT_SCLK); //for display without CS pin
float p = 3.1415926;
//===============================================================================
// Ini
tialization
//===============================================================================
void setup() {
tft.init(240, 240); // initialize ST7789 chip at 240x240 pixels
// Paint red/green/blue rectangles
tft.fillRect(0, 0 , 240, 80, RED);
tft.fillRect(0, 80 , 240, 160, GREEN);
tft.fillRect(0, 160 , 240, 240, BLUE);
delay (1000);
// large block of text
tft.fillScreen(BLACK);
testdrawtext("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur adipiscing ante sed nibh tincidunt feugiat. Maecenas enim massa, fringilla sed malesuada et, malesuada sit amet turpis. Sed porttitor neque ut ante pretium vitae malesuada nunc bibendum. Nullam aliquet ultrices massa eu hendrerit. Ut sed nisi lorem. In vestibulum purus a tortor imperdiet posuere. ", WHITE);
delay(1000);
// a single pixel
tft.drawPixel(tft.width()/2, tft.height()/2, GREEN);
delay(1000);
// line draw test
testlines(YELLOW);
delay(1000);
// optimized lines
testfastlines(RED, BLUE);
delay(1000);
testdrawrects(GREEN);
delay(1000);
testfillrects(YELLOW, MAGENTA);
delay(1000);
tft.fillScreen(BLACK);
testfillcircles(10, BLUE);
testdrawcircles(10, WHITE);
delay(1000);
testroundrects();
delay(1000);
testtriangles();
delay(1000);
mediabuttons();
delay(1000);
}
//===============================================================================
// Main
//===============================================================================
void loop() {
tft.invertDisplay(true);
delay(500);
tft.invertDisplay(false);
delay(500);
}
//===============================================================================
// Subroutines
//===============================================================================
void testlines(uint16_t color) {
tft.fillScreen(BLACK);
for (int16_t x=0; x < tft.width(); x+=6) {
tft.drawLine(0, 0, x, tft.height()-1, color);
}
for (int16_t y=0; y < tft.height(); y+=6) {
tft.drawLine(0, 0, tft.width()-1, y, color);
}
}
void testdrawtext(char *text, uint16_t color) {
tft.setCursor(0, 0);
tft.setTextColor(color);
tft.setTextWrap(true);
tft.print(text);
}
void testfastlines(uint16_t color1, uint16_t color2) {
tft.fillScreen(BLACK);
for (int16_t y=0; y < tft.height(); y+=5) {
tft.drawFastHLine(0, y, tft.width(), color1);
}
for (int16_t x=0; x < tft.width(); x+=5) {
tft.drawFastVLine(x, 0, tft.height(), color2);
}
}
void testdrawrects(uint16_t color) {
tft.fillScreen(BLACK);
for (int16_t x=0; x < tft.width(); x+=6) {
tft.drawRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, color);
}
}
void testfillrects(uint16_t color1, uint16_t color2) {
tft.fillScreen(BLACK);
for (int16_t x=tft.width()-1; x > 6; x-=6) {
tft.fillRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, color1);
tft.drawRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, color2);
}
}
void testfillcircles(uint8_t radius, uint16_t color) {
for (int16_t x=radius; x < tft.width(); x+=radius*2) {
for (int16_t y=radius; y < tft.height(); y+=radius*2) {
tft.fillCircle(x, y, radius, color);
}
}
}
void testdrawcircles(uint8_t radius, uint16_t color) {
for (int16_t x=0; x < tft.width()+radius; x+=radius*2) {
for (int16_t y=0; y < tft.height()+radius; y+=radius*2) {
tft.drawCircle(x, y, radius, color);
}
}
}
void testtriangles() {
tft.fillScreen(BLACK);
int color = 0xF800;
int t;
int w = tft.width()/2;
int x = tft.height()-1;
int y = 0;
int z = tft.width();
for(t = 0 ; t <= 15; t++) {
tft.drawTriangle(w, y, y, x, z, x, color);
x-=4;
y+=4;
z-=4;
color+=100;
}
}
void testroundrects() {
tft.fillScreen(BLACK);
int color = 100;
int i;
int t;
for(t = 0 ; t <= 4; t+=1) {
int x = 0;
int y = 0;
int w = tft.width()-2;
int h = tft.height()-2;
for(i = 0 ; i <= 16; i+=1) {
tft.drawRoundRect(x, y, w, h, 5, color);
x+=2;
y+=3;
w-=4;
h-=6;
color+=1100;
}
color+=100;
}
}
void mediabuttons() {
// play
tft.fillScreen(BLACK);
tft.fillRoundRect(25, 10, 78, 60, 8, WHITE);
tft.fillTriangle(42, 20, 42, 60, 90, 40, RED);
delay(500);
// pause
tft.fillRoundRect(25, 90, 78, 60, 8, WHITE);
tft.fillRoundRect(39, 98, 20, 45, 5, GREEN);
tft.fillRoundRect(69, 98, 20, 45, 5, GREEN);
delay(500);
// play color
tft.fillTriangle(42, 20, 42, 60, 90, 40, BLUE);
delay(50);
// pause color
tft.fillRoundRect(39, 98, 20, 45, 5, RED);
tft.fillRoundRect(69, 98, 20, 45, 5, RED);
// play color
tft.fillTriangle(42, 20, 42, 60, 90, 40, GREEN);
}
这就是我根据我发现的 wemos 的引出线得出的结果。
代码:
全选#define TFT_DC 0 // Data/Command
#define TFT_RST 4 // ST7789 Reset
#define TFT_MOSI 13 // SPI data pin
#define TFT_SCLK 14 // SPI sclk pin