求助:12864液晶怎样显示传感器数值
12864液晶库里的函数只能显示字符串和图片,不知道如何显示传感器数值我的库和弘毅老大的不一样
附件里st7920.h里有可以调用的函数,不清楚哪一个是显示变量的//可用串口方式对ST7920操作
#ifndef __ST7920_H__
#define __ST7920_H__
#include <inttypes.h>
//已经基本参数
#define LCD_X_MAX 127
#define LCD_Y_MAX 63
//每行的首地址,基于RT12864-4M型液晶
#define LINE_ONE_ADDRESS 0x80
#define LINE_TWO_ADDRESS 0x90
#define LINE_THREE_ADDRESS 0x88
#define LINE_FOUR_ADDRESS0x98
//基本指令集预定义
#define LCD_DATA 1 //数据位
#define LCD_COMMAND 0 //命令位
#define LCD_CLEAR_SCREEN 0x01 //清屏
#define LCD_ADDRESS_RESET 0x02 //地址归零
#define LCD_BASIC_FUNCTION 0x30 //基本指令集
#define LCD_EXTEND_FUNCTION 0x34 //扩充指令集
//扩展指令集预定义
#define LCD_AWAIT_MODE 0x01 //待命模式
#define LCD_ROLLADDRESS_ON 0x03 //允许输入垂直卷动地址
#define LCD_IRAMADDRESS_ON 0x02 //允许输入IRAM地址
#define LCD_SLEEP_MODE 0x08 //进入睡眠模式
#define LCD_NO_SLEEP_MODE 0x0c //脱离睡眠模式
#define LCD_GRAPH_ON 0x36 //打开绘图模式
#define LCD_GRAPH_OFF 0x34 //关闭绘图模式
#ifndef LCD_COLOR
#define LCD_COLOR_BLACK 1
#define LCD_COLOR_WHITE 0
#endif
class ST7920
{
public:
void LCD_Init(void);
void LCD_Write( unsigned char Data_Command , unsigned char uc_Content );
void LCD_ClearRam(void);
void LCD_DisplayCLR(void);
void LCD_ImgDisplayCharacter(unsigned char x,unsigned char y,unsigned char *img);
void LCD_ImgDisplay(unsigned char *img);
void LCD_ImgDisplay_from_flash(unsigned char *img);
void LCD_GraphModeSet(unsigned char Select);
void LCD_DisplayStrings_WithAddress(unsigned char ucAdd,const char *p);
void LCD_DisplayMatrix_WithAddress(unsigned char ucAdd,unsigned char *p);
void LCD_DisplayStrings(unsigned char x,unsigned char y,const char *p);
void Overturn_Char(unsigned char x,unsigned char y,unsigned char wide,unsigned char cor);
void Overturn_Font(unsigned char x,unsigned char y,unsigned char wide,unsigned char corv);
void chsDisplay_8bit(unsigned char ucAdd, unsigned char code);
void chsDisplay_16bit(unsigned char ucAdd, unsigned int code);
private:
void LCD_SendByte(unsigned char a);
void LCD_CGRAM_AddressSet(unsigned char ucCGramAdd);
void LCD_DDRAM_AddressSet(unsigned char ucDDramAdd);
void LCD_GDRAM_AddressSet(unsigned char ucGDramAdd);
void LCD_CheckBusy(void);
unsigned char ReceiveByte(void);
unsigned char LCD_ReadData(void);
};
#endif //#ifndef __ST7920_H__
谢谢大家 感觉是
void LCD_DisplayStrings(unsigned char x,unsigned char y,const char *p);
void Overturn_Char(unsigned char x,unsigned char y,unsigned char wide,unsigned char cor);
void Overturn_Font(unsigned char x,unsigned char y,unsigned char wide,unsigned char corv);
这三个中的一个。。。。 显示的函数就是 void LCD_DisplayStrings(unsigned char x,unsigned char y,const char *p); 如果你想要把传感器的读数显示出来的话需要先用Serial. Read()把传感器的数据读取出来然后储存在一个字符串里,让LCD显示 发一个以前用LCD12864显示DS1302时钟芯片时间的程序#include <PIC.h>
#include <ST7920.h>
#include <stdio.h>
#include <string.h>
#include <DS1302.h>
ST7920 a=ST7920();
/* 接口定义
CE(DS1302 pin5) -> Arduino D5
IO(DS1302 pin6) -> Arduino D6
SCLK(DS1302 pin7) -> Arduino D7
*/
uint8_t CE_PIN = 5;
uint8_t IO_PIN = 6;
uint8_t SCLK_PIN = 7;
/* 日期变量缓存 */
char buf;
char day;
/* 串口数据缓存 */
String comdata = "";
int numdata ={0}, j = 0, mark = 0;
/* 创建 DS1302 对象 */
DS1302 rtc(CE_PIN, IO_PIN, SCLK_PIN);
void print_time()
{
/* 从 DS1302 获取当前时间 */
Time t = rtc.time();
/* 将星期从数字转换为名称 */
memset(day, 0, sizeof(day));
switch (t.day)
{
case 1: strcpy(day, "Sunday"); break;
case 2: strcpy(day, "Monday"); break;
case 3: strcpy(day, "Tuesday"); break;
case 4: strcpy(day, "Wednesday"); break;
case 5: strcpy(day, "Thursday"); break;
case 6: strcpy(day, "Friday"); break;
case 7: strcpy(day, "Saturday"); break;
}
/* 将日期代码格式化凑成buf等待输出 */
snprintf(buf, sizeof(buf), "%s %04d-%02d-%02d %02d:%02d:%02d", day, t.yr, t.mon, t.date, t.hr, t.min, t.sec);
/* 输出日期到串口 */
// Serial.println(buf);
a.LCD_ClearRam();
delay(100);
a.LCD_DisplayStrings_WithAddress(0x80,buf);
}
void setup()
{
Serial.begin(9600);
rtc.write_protect(false);
rtc.halt(false);
a.LCD_Init();
delay(100);
}
void loop()
{
/* 当串口有数据的时候,将数据拼接到变量comdata */
while (Serial.available() > 0)
{
comdata += char(Serial.read());
delay(2);
mark = 1;
}
/* 以逗号分隔分解comdata的字符串,分解结果变成转换成数字到numdata[]数组 */
if(mark == 1)
{
Serial.print("You inputed : ");
Serial.println(comdata);
for(int i = 0; i < comdata.length() ; i++)
{
if(comdata == ',' || comdata == 0x10 || comdata == 0x13)
{
j++;
}
else
{
numdata = numdata * 10 + (comdata - '0');
}
}
/* 将转换好的numdata凑成时间格式,写入DS1302 */
Time t(numdata, numdata, numdata, numdata, numdata, numdata, numdata);
rtc.time(t);
mark = 0;j=0;
/* 清空 comdata 变量,以便等待下一次输入 */
comdata = String("");
/* 清空 numdata */
for(int i = 0; i < 7 ; i++) numdata=0;
}
/* 打印当前时间 */
print_time();
delay(1000);
} Muller_r 发表于 2012-6-21 09:46 static/image/common/back.gif
发一个以前用LCD12864显示DS1302时钟芯片时间的程序#include
#include
#include
你好。。我想问问你这个程序用的是什么CPU,,不像是51的单片机啊。。。看不懂,是小白我,,求教一下 Atmega MCU 怎么 将超声波测距仪 显示在 12864上 啊求个 为大神们 帮助 一下
我是个新手。。
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