Adafruit_GFX驱动ILI9341 2.4寸并口屏

wei27311 · 发表于 2019-8-29 15:58:08

本帖最后由 wei27311 于 2019-8-31 12:56 编辑

买这屏的时候不知道只支持并口
回来要把之前的程序Ucglib库改成Adafruit_GFX库
这库要搭配MCUFRIEND_kbv库一起使用
才能驱动这个并口屏
感觉没Ucglib库那么好用
所以买屏幕最好选SPI接口
这屏幕唯一优势是可以直接插入Arduino UNO R3
不然接线都很麻烦

wei27311 · 发表于 2019-8-29 16:01:47

本帖最后由 wei27311 于 2019-8-31 12:59 编辑

#include <dht11.h>
#define DHT11PIN 13 //DHT11 data接13引脚
dht11 DHT11;
#include "Adafruit_GFX.h"// Hardware-specific library
#include <MCUFRIEND_kbv.h>
#define LCD_CS A3 // Chip Select goes to Analog 3
#define LCD_CD A2 // Command/Data goes to Analog 2
#define LCD_WR A1 // LCD Write goes to Analog 1
#define LCD_RD A0 // LCD Read goes to Analog 0
#define LCD_RESET A4 // Can alternately just connect to Arduino's reset pin
MCUFRIEND_kbv ucg;
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
//外圈仪表
void draw(int value)
{
int cx = 160; //圆心x
int cy = 120; //圆心y
int cr = 119; //圆半径r
float angle; //数值转换指针偏转角度
float rad; //指针偏转角度转换弧度
//仪表刻度
for(int i=0;i<=100;i+=10)
{
angle = 150+i*2.4;
rad = angle/180*PI;
if(i==0||i==20||i==40||i==60||i==80||i==100)
{
//刻度线
ucg.drawLine(cx+(cr-15)*cos(rad),cy+(cr-15)*sin(rad),cx+(cr-5)*cos(rad),cy+(cr-5)*sin(rad),WHITE);
//刻度数值
ucg.setTextSize(2);
ucg.setTextColor(WHITE);
ucg.setCursor((cx-10)+(cr-35)*cos(rad),(cy-8)+(cr-35)*sin(rad));
ucg.print(int(i));
}
else
{
//刻度线
ucg.drawLine(cx+(cr-15)*cos(rad),cy+(cr-15)*sin(rad),cx+(cr-5)*cos(rad),cy+(cr-5)*sin(rad),WHITE);
}
}
//仪表外圆加粗5像素
for(int i=0;i<=4;i++)
{
ucg.drawCircle(cx,cy,(cr-i),WHITE);
}
//指针轨迹
for(float i=150;i<150+value*2.4;i++)
{
rad = i/180*PI;
ucg.drawLine(cx+(cr-10)*cos(rad),cy+(cr-10)*sin(rad),cx+(cr-5)*cos(rad),cy+(cr-5)*sin(rad),CYAN);
}
//指针
for(int i=0;i<=5;i++)
{
angle = 150+value*2.4;
ucg.drawLine(cx+(cr-69)*cos((angle-i)/180*PI),cy+(cr-69)*sin((angle-i)/180*PI),cx+(cr-5)*cos(rad),cy+(cr-5)*sin(rad),CYAN);
ucg.drawLine(cx+(cr-69)*cos((angle+i)/180*PI),cy+(cr-69)*sin((angle+i)/180*PI),cx+(cr-5)*cos(rad),cy+(cr-5)*sin(rad),CYAN);
}
//显示数值
ucg.setTextSize(3);
ucg.setTextColor(WHITE);
ucg.setCursor((cx-15),(cy+70));
ucg.print("RH");
}
//内圈仪表
void draw2(int value) {
int cx = 160; //圆心x
int cy = 120; //圆心y
int cr = 50; //圆半径r
//内圆显示数值
ucg.setTextSize(3);
ucg.setTextColor(WHITE);
ucg.setCursor((cx-25),(cy-10));
ucg.print(value);
ucg.setCursor((cx+15),(cy-10));
ucg.print("C");
//仪表外圆加粗5像素
for(int i=0;i<=4;i++)
{
ucg.drawCircle(cx,cy,(cr-i),CYAN);
}
}
void setup()
{
pinMode(DHT11PIN,OUTPUT);
ucg.begin(0x9341); //ILI9341
ucg.setRotation(3); //屏幕旋转270度
ucg.fillRect(0,0,320,240,BLACK); //填充屏幕背景颜色
}
void loop()
{
int chk = DHT11.read(DHT11PIN); //将读取到的值赋给chk
int tem=(float)DHT11.temperature; //将温度值赋值给tem
int hum=(float)DHT11.humidity; //将湿度值赋值给tem
ucg.fillCircle(160,120,119,BLACK); //局部清屏
draw2(tem);
draw(hum);
delay(2000); //2秒刷新一次
}

复制代码

wei27311 · 发表于 2019-8-29 16:04:15

#include <dht11.h>
#define DHT11PIN 13 //DHT11 data接13引脚
dht11 DHT11;
#include "Adafruit_GFX.h"// Hardware-specific library
#include <MCUFRIEND_kbv.h>
#define LCD_CS A3 // Chip Select goes to Analog 3
#define LCD_CD A2 // Command/Data goes to Analog 2
#define LCD_WR A1 // LCD Write goes to Analog 1
#define LCD_RD A0 // LCD Read goes to Analog 0
#define LCD_RESET A4 // Can alternately just connect to Arduino's reset pin
MCUFRIEND_kbv ucg;
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
//左边仪表
void draw(int value) {
int cx = 77; //圆心x
int cy = 120; //圆心y
int cr = 75; //圆半径r
float angle; //数值转换指针偏转角度
float rad; //指针偏转角度转换弧度
//仪表刻度
for(int i=0;i<=100;i+=2){
angle = 150+i*2.4;
rad = angle/180*PI;
if(i==0 ||i==20 ||i==40 ||i==60 ||i==80 ||i==100)
{
//刻度线
ucg.drawLine(cx+(cr-13)*cos(rad),cy+(cr-13)*sin(rad),cx+(cr-3)*cos(rad),cy+(cr-3)*sin(rad),WHITE);
//刻度数值
ucg.setTextSize(2);
ucg.setTextColor(WHITE);
ucg.setCursor((cx-10)+(cr-33)*cos(rad),(cy-8)+(cr-33)*sin(rad));
ucg.print(int(i));
}
else if(i==10 ||i==30 ||i==50 ||i==70 ||i==90)
{
//刻度线
ucg.drawLine(cx+(cr-13)*cos(rad),cy+(cr-13)*sin(rad),cx+(cr-3)*cos(rad),cy+(cr-3)*sin(rad),WHITE);
}
else
{
//刻度线
ucg.drawLine(cx+(cr-8)*cos(rad),cy+(cr-8)*sin(rad),cx+(cr-3)*cos(rad),cy+(cr-3)*sin(rad),WHITE);
}
}
//仪表外圆
ucg.drawCircle(cx,cy,cr,BLUE);
ucg.drawCircle(cx,cy,(cr-1),BLUE);
ucg.drawCircle(cx,cy,(cr-2),BLUE);
//仪表指针及轨迹
for(float i=0;i<=value;i+=0.25)
{
angle = 150+i*2.4;
rad = angle/180*PI;
if(i<value)
{
ucg.drawLine(cx+(cr-8)*cos(rad),cy+(cr-8)*sin(rad),cx+(cr-3)*cos(rad),cy+(cr-3)*sin(rad),WHITE);
}
else
{
ucg.drawLine(cx+(cr-60)*cos(rad),cy+(cr-60)*sin(rad),cx+(cr-3)*cos(rad),cy+(cr-3)*sin(rad),BLUE);
}
}
//仪表中心小圆
ucg.fillCircle(cx,cy,(cr-60),BLUE);
//中心小圆符号
ucg.setTextSize(2);
ucg.setTextColor(WHITE);
ucg.setCursor((cx-5),(cy-7));
ucg.print("H");
}
//右边仪表
void draw2(int value) {
int cx = 243; //圆心x
int cy = 120; //圆心y
int cr = 75; //圆半径r
float angle; //数值转换指针偏转角度
float rad; //指针偏转角度转换弧度
//仪表刻度
for(int i=0;i<=50;i+=1){
angle = i*4.8+150;
rad = angle/180*PI;
if(i==0 ||i==10 ||i==20 ||i==30 ||i==40 ||i==50)
{
//刻度线
ucg.drawLine(cx+(cr-18)*cos(rad),cy+(cr-18)*sin(rad),cx+(cr-3)*cos(rad),cy+(cr-3)*sin(rad),WHITE);
//刻度数值
ucg.setTextSize(2);
ucg.setTextColor(WHITE);
ucg.setCursor((cx-10)+(cr-33)*cos(rad),(cy-8)+(cr-33)*sin(rad));
ucg.print(i);
}
else if(i==5 ||i==15 ||i==25 ||i==35 ||i==45)
{
//刻度线
ucg.drawLine(cx+(cr-13)*cos(rad),cy+(cr-13)*sin(rad),cx+(cr-3)*cos(rad),cy+(cr-3)*sin(rad),WHITE);
}
else
{
//刻度线
ucg.drawLine(cx+(cr-8)*cos(rad),cy+(cr-8)*sin(rad),cx+(cr-3)*cos(rad),cy+(cr-3)*sin(rad),WHITE);
}
}
//仪表外圆
ucg.drawCircle(cx,cy,cr,RED);
ucg.drawCircle(cx,cy,(cr-1),RED);
ucg.drawCircle(cx,cy,(cr-2),RED);
//仪表指针及轨迹
for(float i=0;i<=value;i+=0.25)
{
angle = 150+i*4.8;
rad = angle/180*PI;
if(i<value)
{
ucg.drawLine(cx+(cr-8)*cos(rad),cy+(cr-8)*sin(rad),cx+(cr-3)*cos(rad),cy+(cr-3)*sin(rad),WHITE);
}
else
{
ucg.drawLine(cx+(cr-60)*cos(rad),cy+(cr-60)*sin(rad),cx+(cr-3)*cos(rad),cy+(cr-3)*sin(rad),RED);
}
}
//仪表中心小圆
ucg.fillCircle(cx,cy,(cr-60),RED);
//中心小圆符号
ucg.setTextSize(2);
ucg.setTextColor(WHITE);
ucg.setCursor((cx-5),(cy-7));
ucg.print("T");
}
void setup()
{
pinMode(DHT11PIN,OUTPUT);
ucg.begin(0x9341); //ILI9341
ucg.setRotation(3); //屏幕旋转270度
}
void loop()
{
int chk = DHT11.read(DHT11PIN); //将读取到的值赋给chk
int tem=(float)DHT11.temperature; //将温度值赋值给tem
int hum=(float)DHT11.humidity; //将湿度值赋值给tem
ucg.fillScreen(BLACK); //清屏
draw(hum);
draw2(tem);
delay(5000); //5秒刷新一次
}

复制代码

chenlei1910 · 发表于 2019-8-29 16:30:53

表盘还能嵌套挺好看的

wei27311 · 发表于 2019-8-29 16:48:15

chenlei1910 发表于 2019-8-29 16:30
表盘还能嵌套挺好看的

这个是模仿一些汽车的全液晶仪表盘
可惜刷新率太低了只能几秒刷新一次

zxy882266 · 发表于 2020-4-5 22:09:13

w我也搞了一个这玩意真他妈难弄，一直没点亮，下去找找库，楼主给个建议吧

zxy882266 · 发表于 2020-4-5 23:10:14

我咋编译错误啊？？？

595953427@qq · 发表于 2020-4-5 23:17:19

wei27311 发表于 2019-8-29 16:48
这个是模仿一些汽车的全液晶仪表盘
可惜刷新率太低了只能几秒刷新一次

SPI驱动彩屏不慢才怪

springvirus · 发表于 2020-4-8 11:56:21

zxy882266 发表于 2020-4-5 22:09
w我也搞了一个这玩意真他妈难弄，一直没点亮，下去找找库，楼主给个建议吧 ...

先弄画点和画线吧，库有时编译一堆错误，需要一点一点排错

zxy882266 · 发表于 2020-4-9 08:40:00

595953427@qq 发表于 2020-4-5 23:17
SPI驱动彩屏不慢才怪

看来你是没i用过SPI啊，惭愧

zxy882266 · 发表于 2020-4-9 08:42:46

我一直没搞懂这玩意到底用的是啥IC?卖家说9225，我看到好多人说是9431，更还有别的说法，手里的屏都搞定了，就这个一直不行

zxy882266 · 发表于 2020-4-9 08:44:52

这是国外搜到的

595953427@qq · 发表于 2020-4-9 09:11:04

zxy882266 发表于 2020-4-9 08:40
看来你是没i用过SPI啊，惭愧

天天在用，驱动单色屏，FLASH，TF卡用SPI，彩屏用并口

zxy882266 · 发表于 2020-4-9 10:20:44

看看我的SPI，这速度慢了就没有快的屏了，过去的老东西就不要提了

springvirus · 发表于 2020-4-23 08:28:22

并口屏到MCU之间，有接口片子，用到RT8875，或者SSD1963，还是什么其他的方案

我有个RGB接口的裸屏，想点亮

wei27311 · 发表于 2020-6-2 13:10:50

zxy882266 发表于 2020-4-5 22:09
w我也搞了一个这玩意真他妈难弄，一直没点亮，下去找找库，楼主给个建议吧 ...

确定屏幕是好的话应该是复位的问题，有些库不包含复位脚的操作。最好认真阅读下屏幕的手册。

shangjiazi · 发表于 2022-9-27 12:53:48

3.5的有吗

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[Arduino] Adafruit_GFX驱动ILI9341 2.4寸并口屏

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