粤嵌GEC6818开发板实现开关灯、播放音乐和显示温湿度，光照强度、烟雾（传感器是GY-39）

#include <stdio.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <unistd.h> #include <sys/mman.h> #include "lcd.h" #include "zimo.h" void display_hanzi(int x0,int y0,char zimo[],int w,int h) { int dian; //点的编号 0 -- w*h-1 int color; for(dian=0;dian<w*h;dian++) { //要知道这个bit为属于哪8个点 int xb=dian/8; //要知道这个bit 属于这8个点的第几bit位 int bit=7-dian%8; if(zimo[xb]&(1<<bit)) { //此bit为1 color=0x000000; } else { //此bit为0 color=0xffffff; } int x,y; //点的坐标 x=x0+dian%w; y=y0+dian/w; lcd_draw_point(x,y,color); } } void display_dian(int x0,int y0) { /*-- 文字: . --*/ /*-- 宋体12; 此字体下对应的点阵为：宽x高=8x16 --*/ unsigned char dian[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x0C,0x00,0x00,0x00,0x00,0x00}; display_hanzi(x0,y0,dian,8,16); } void display_shuzi(int x0,int y0,int a) { char n0[] = {0x00,0x00,0x00,0x18,0x24,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18,0x00,0x00}; char n1[] = {0x00,0x00,0x00,0x08,0x38,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x3E,0x00,0x00}; char n2[] = {0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x02,0x04,0x08,0x10,0x20,0x42,0x7E,0x00,0x00}; char n3[] = {0x00,0x00,0x00,0x3C,0x42,0x42,0x02,0x04,0x18,0x04,0x02,0x42,0x42,0x3C,0x00,0x00}; char n4[] = {0x00,0x00,0x00,0x04,0x0C,0x0C,0x14,0x24,0x24,0x44,0x7F,0x04,0x04,0x1F,0x00,0x00}; char n5[] = {0x00,0x00,0x00,0x7E,0x40,0x40,0x40,0x78,0x44,0x02,0x02,0x42,0x44,0x38,0x00,0x00}; char n6[] = {0x00,0x00,0x00,0x18,0x24,0x40,0x40,0x5C,0x62,0x42,0x42,0x42,0x22,0x1C,0x00,0x00}; char n7[] = {0x00,0x00,0x00,0x7E,0x42,0x04,0x04,0x08,0x08,0x10,0x10,0x10,0x10,0x10,0x00,0x00}; char n8[] = {0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x24,0x18,0x24,0x42,0x42,0x42,0x3C,0x00,0x00}; char n9[] = {0x00,0x00,0x00,0x38,0x44,0x42,0x42,0x42,0x46,0x3A,0x02,0x02,0x24,0x18,0x00,0x00}; switch (a) { case 0: { display_hanzi( x0, y0, n0,8,16); break; } case 1: { display_hanzi( x0, y0, n1,8,16); break; } case 2: { display_hanzi( x0, y0, n2,8,16); break; } case 3: { display_hanzi( x0, y0, n3,8,16); break; } case 4: { display_hanzi( x0, y0, n4,8,16); break; } case 5: { display_hanzi( x0, y0, n5,8,16); break; } case 6: { display_hanzi( x0, y0, n6,8,16); break; } case 7: { display_hanzi( x0, y0, n7,8,16); break; } case 8: { display_hanzi( x0, y0, n8,8,16); break; } case 9: { display_hanzi( x0, y0, n9,8,16); break; } } } //显示4位的数据 中间有小数点 void display_data4(int x0,int y0,int num) { display_shuzi(x0,y0,num/1000); display_shuzi(x0+8,y0,(num%1000)/100); display_dian(x0+16,y0); display_shuzi(x0+24,y0,(num%100)/10); display_shuzi(x0+32,y0,num%10); } //显示6位的数据 中间有小数点 void display_data6(int x0,int y0,int num) { display_shuzi(x0,y0,num/100000); display_shuzi(x0+8,y0,(num%100000)/10000); display_shuzi(x0+16,y0,(num%100000)%10000/1000); display_dian(x0+24,y0); display_shuzi(x0+32,y0,(num%1000)/100); display_shuzi(x0+40,y0,(num%100)/10); display_shuzi(x0+48,y0,num%10); } /*-- 文字: 智 --*/ /*-- 宋体26; 此字体下对应的点阵为：宽x高=35x35 --*/ /*-- 宽度不是8的倍数，现调整为：宽度x高度=40x35 --*/ char zhi[40*35/8]={0x00,0x00,0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x01,0xE0,0x00,0x00,0x00,0x03, 0xC0,0x80,0x00,0x00,0x03,0x81,0xCE,0x06,0x00,0x03,0xFF,0xEF,0xFF,0x00,0x07,0x3C, 0x0E,0x0F,0x00,0x07,0x3C,0x0E,0x0F,0x00,0x0E,0x3C,0x0E,0x0F,0x00,0x1C,0x38,0x4E, 0x0F,0x00,0x00,0x38,0xEE,0x0F,0x00,0x3F,0xFF,0xFE,0x0F,0x00,0x18,0x38,0x0E,0x0F, 0x00,0x00,0x7C,0x0E,0x0F,0x00,0x00,0x7F,0x0F,0xFF,0x00,0x00,0xF7,0xCE,0x0F,0x00, 0x00,0xE3,0xEE,0x0E,0x00,0x01,0xC1,0xEC,0x0C,0x00,0x03,0xF0,0xE0,0x70,0x00,0x0F, 0x7F,0xFF,0xF8,0x00,0x3C,0x70,0x00,0xF0,0x00,0x30,0x70,0x00,0xF0,0x00,0x00,0x70, 0x00,0xF0,0x00,0x00,0x70,0x00,0xF0,0x00,0x00,0x70,0x00,0xF0,0x00,0x00,0x7F,0xFF, 0xF0,0x00,0x00,0x70,0x00,0xF0,0x00,0x00,0x70,0x00,0xF0,0x00,0x00,0x70,0x00,0xF0, 0x00,0x00,0x70,0x00,0xF0,0x00,0x00,0x7F,0xFF,0xF0,0x00,0x00,0x70,0x00,0xF0,0x00, 0x00,0x70,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; /*-- 文字: 能 --*/ /*-- 宋体26; 此字体下对应的点阵为：宽x高=35x35 --*/ /*-- 宽度不是8的倍数，现调整为：宽度x高度=40x35 --*/ char zhi0[40*35/8]={0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x00,0xF0,0x1E,0x00,0x00,0x00, 0xF0,0x1F,0x00,0x00,0x01,0xE0,0x1E,0x18,0x00,0x03,0xCE,0x1E,0x3C,0x00,0x03,0x87, 0x1E,0x7E,0x00,0x07,0x03,0x9F,0xF0,0x00,0x1E,0x03,0xDF,0xC2,0x00,0x3F,0xFF,0xFE, 0x03,0x00,0x1F,0xF9,0xFE,0x03,0x00,0x1C,0x00,0xDE,0x03,0x00,0x00,0x00,0x1E,0x07, 0x80,0x0C,0x07,0x0F,0xFF,0x80,0x0F,0xFF,0x8F,0xFF,0x80,0x0E,0x07,0x80,0x00,0x00, 0x0E,0x07,0x00,0x00,0x00,0x0E,0x07,0x1C,0x00,0x00,0x0F,0xFF,0x1E,0x1C,0x00,0x0E, 0x07,0x1C,0x1E,0x00,0x0E,0x07,0x1C,0x7E,0x00,0x0E,0x07,0x1C,0xF8,0x00,0x0E,0x07, 0x1D,0xE0,0x00,0x0F,0xFF,0x1F,0x80,0x00,0x0E,0x07,0x1E,0x00,0x00,0x0E,0x07,0x1C, 0x03,0x00,0x0E,0x07,0x1C,0x03,0x00,0x0E,0x07,0x1C,0x03,0x00,0x0E,0x07,0x1C,0x03, 0x80,0x0E,0x07,0x1E,0x03,0x80,0x0E,0x7F,0x1F,0xFF,0xC0,0x0E,0x1F,0x0F,0xFF,0x80, 0x0E,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; /*-- 文字: 家 --*/ /*-- 宋体26; 此字体下对应的点阵为：宽x高=35x35 --*/ /*-- 宽度不是8的倍数，现调整为：宽度x高度=40x35 --*/ char zhi1[40*35/8]={0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xC0,0x00,0x00,0x00,0x01,0xE0,0x00,0x00,0x00, 0x00,0xF0,0x00,0x00,0x06,0x00,0xF0,0x00,0x00,0x06,0x00,0x60,0x07,0x00,0x07,0xFF, 0xFF,0xFF,0x80,0x0E,0x00,0x00,0x0F,0x80,0x1E,0x00,0x00,0xCE,0x00,0x3E,0x00,0x01, 0xFC,0x00,0x1F,0xFF,0xFF,0xF0,0x00,0x00,0x83,0xC0,0x00,0x00,0x00,0x07,0x80,0x20, 0x00,0x00,0x0F,0x80,0x70,0x00,0x00,0x3F,0xC0,0xF8,0x00,0x00,0x79,0xE3,0xF0,0x00, 0x01,0xE1,0xE7,0x80,0x00,0x07,0x83,0xFF,0x00,0x00,0x1E,0x07,0xFB,0x00,0x00,0x30, 0x1F,0x3B,0x00,0x00,0x00,0x3C,0x7B,0x80,0x00,0x00,0xF8,0xFD,0x80,0x00,0x01,0xE1, 0xFD,0xC0,0x00,0x07,0x83,0xFC,0xE0,0x00,0x3E,0x07,0x9C,0xF0,0x00,0x10,0x1F,0x1C, 0x7C,0x00,0x00,0x3C,0x1C,0x3F,0x00,0x00,0xF8,0x3C,0x1F,0xC0,0x03,0xE0,0x3C,0x0F, 0x00,0x0F,0x8F,0x7C,0x00,0x00,0x7C,0x07,0xF8,0x00,0x00,0x60,0x01,0xF0,0x00,0x00, 0x00,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; /*-- 文字: 居 --*/ /*-- 宋体26; 此字体下对应的点阵为：宽x高=35x35 --*/ /*-- 宽度不是8的倍数，现调整为：宽度x高度=40x35 --*/ char zhi2[40*35/8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x1C,0x00,0x03, 0xFF,0xFF,0xFE,0x00,0x03,0x80,0x00,0x1C,0x00,0x03,0x80,0x00,0x1C,0x00,0x03,0x80, 0x00,0x1C,0x00,0x03,0x80,0x00,0x1C,0x00,0x03,0xFF,0xFF,0xFC,0x00,0x03,0x80,0x30, 0x1C,0x00,0x03,0x80,0x3C,0x18,0x00,0x03,0x80,0x3C,0x00,0x00,0x03,0x80,0x38,0x00, 0x00,0x03,0x80,0x38,0x03,0x00,0x03,0x80,0x38,0x0F,0x00,0x03,0xFF,0xFF,0xFF,0x80, 0x03,0xE0,0x38,0x00,0x00,0x03,0x80,0x38,0x00,0x00,0x03,0x80,0x38,0x00,0x00,0x07, 0x80,0x38,0x00,0x00,0x07,0x80,0x38,0x30,0x00,0x07,0x38,0x38,0x38,0x00,0x07,0x3F, 0xFF,0xFC,0x00,0x07,0x3C,0x00,0x78,0x00,0x07,0x3C,0x00,0x78,0x00,0x0E,0x3C,0x00, 0x78,0x00,0x0E,0x3C,0x00,0x78,0x00,0x0C,0x3C,0x00,0x78,0x00,0x1C,0x3C,0x00,0x78, 0x00,0x18,0x3F,0xFF,0xF8,0x00,0x38,0x3C,0x00,0x78,0x00,0x70,0x3C,0x00,0x70,0x00, 0x60,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; /*-- 文字: 系 --*/ /*-- 宋体26; 此字体下对应的点阵为：宽x高=35x35 --*/ /*-- 宽度不是8的倍数，现调整为：宽度x高度=40x35 --*/ char zhi3[40*35/8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x07,0xFC,0x00,0x00, 0x01,