基于8G1K08A 单片机的简易示波器和超声波测距二合一小制作 附程序
STC8G1K08A是深圳国芯人工智能的一款8脚8位兼容51系列的单片机价格很便宜 但麻雀虽小五脏俱全 且速度还挺快下面就是用它做的小东西 精度不是很高
本人也是刚入门 水平有限 希望大家多多指教共两个按键 ：按住周期和启动按键5秒钟
后两个程序互相切换、短按示波器是切换扫描周期、超声波测距是启动按键、波形锁定是示波器波形固定用的
制作出来的实物图如下：
电路原理图如下：
单片机源程序如下:
[*]#include "reg51.h"
[*]#include "intrins.h"
[*]#include"main.h"
[*]#include<math.h>
[*]
[*]unsigned char xdata se;//把AD转换后的临时数据存于该数组
[*]unsigned char code sm={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};//用于显示一列中的一点
[*]unsigned int code time={1,40,100,500,1000,2600,5250,10000,25000};
[*]unsigned int code time1={1,3,5,20,40,100,200,400,1000};
[*]unsigned char xdata timd;
[*]unsigned char xdata ju_li;
[*]unsigned char p,z=0;
[*]unsigned int i=0,q=0;
[*]unsigned int m=5;
[*]//unsigned double q;
[*]sbit k1=P3^1;
[*]sbit trig=P3^3;
[*]sbit echo=P3^2;
[*]void delay_us(unsigned int i)
[*]{
[*] while(i)
[*] {
[*] unsigned char a;
[*] for(a=5;a>0;a--);
[*] i--;
[*] }
[*]
[*]}
[*]void delay100ms(unsigned int i) //误差 -0.000000000025us
[*]{
[*] while(i)
[*] {
[*] unsigned char a,b,c;
[*] for(c=106;c>0;c--)
[*] for(b=197;b>0;b--)
[*] for(a=38;a>0;a--);
[*] _nop_();//if Keil,require use intrins.h
[*] i--;
[*] }
[*]}
[*]void main()
[*]{
[*] P0M1 = 0; P0M0 = 0; //设置为准双向口
[*] P1M1 = 0; P1M0 = 0; //设置为准双向口
[*] P2M1 = 0; P2M0 = 0; //设置为准双向口
[*] P3M1 = 0; P3M0 = 0; //设置为准双向口
[*] P4M1 = 0; P4M0 = 0; //设置为准双向口
[*] P5M1 = 0; P5M0 = 0; //设置为准双向口
[*] /* P_SW2 = 0x80;//特殊寄存器允许位（0x80）
[*] CKSEL = 0x00; //选择内部 IRC ( 默认 )
[*] CLKDIV = 0x03; //时钟 3分频
[*] P_SW2 = 0x00;
[*] */
[*] ad_init(); //ad转换初始化
[*] OLED_Init(); //OLED初始化
[*]
[*] for(z=0;z<128;z++) // 起 显示启动示波器文字
[*] {
[*] for(i=0;i<8;i++) //清屏
[*] {
[*] OLED_WrCmd(0xb0+i);
[*] OLED_WrCmd(0x00+(z%16));
[*] OLED_WrCmd(0x10+z/16);
[*] OLED_WrDat(0x00);
[*] }
[*] }
[*] for (i=0;i<8;i++)
[*] {
[*] OLED_P16x16Ch(i*16,i/8*2+2,i);
[*] }
[*] delay100ms(30);
[*] for(z=0;z<128;z++)
[*] {
[*] for(i=0;i<8;i++) //清屏
[*] {
[*] OLED_WrCmd(0xb0+i);
[*] OLED_WrCmd(0x00+(z%16));
[*] OLED_WrCmd(0x10+z/16);
[*] OLED_WrDat(0x00);
[*] }
[*] } //止
[*]
[*]
[*]while(1)
[*]{
[*] if(k1==0)
[*] {
[*] i=0;
[*] m++;
[*] while(!k1)
[*] {
[*]
[*] delay100ms(1);
[*] i++;
[*]
[*]
[*] if(i>50)
[*]
[*] goto bosh;
[*]
[*] }
[*]
[*] if(m>8)
[*] {
[*] m=0;
[*] }
[*] //i++;
[*] }
[*]//*******************AD转换将临时数据存于数组se[] ****************************************
[*]
[*]
[*] for(i=0;i<128;i++)
[*] {
[*] se=56-ad_dat()/18;
[*] delay(time);
[*]
[*] }
[*] timd=time1%10;
[*] timd=time1/10%10;
[*] timd=time1/100%10;
[*] timd=time1/1000%10;
[*] timd=time1/10000%10;
[*] OLED_P6x8Str(10,7,"Time = ");
[*] OLED_P6x8Str(10+70,7," ms");
[*]
[*]
[*] for(i=0;i<5;i++) //显示扫描周期每一位 共五位
[*] {
[*] oled_6x8((10+40)+6*i,7,timd+16);
[*] }
[*]
[*]
[*]
[*]//**********************oled显示****************************
[*]/* for(i=0;i<7;i++)
[*]
[*] {
[*] OLED_WrCmd(0xb0+i);
[*] OLED_WrCmd(0x00+(z%16));
[*] OLED_WrCmd(0x10+z/16);
[*] OLED_WrDat(0x00);
[*] }
[*]
[*] */
[*]
[*] for(z=0;z<128;z++)
[*] {
[*]
[*] for(i=0;i<7;i++)
[*]
[*] {
[*] OLED_WrCmd(0xb0+i);
[*] OLED_WrCmd(0x00+(z%16));
[*] OLED_WrCmd(0x10+z/16);
[*] if((i==3)&&(z%4==0))
[*] OLED_WrDat(0x10);
[*] else if(z==63)
[*] OLED_WrDat(0x44);
[*] else
[*] OLED_WrDat(0x00);
[*] }
[*] OLED_WrCmd(0xb0+se/7);
[*] OLED_WrCmd(0x00+(z%16));
[*] OLED_WrCmd(0x10+z/16);
[*] OLED_WrDat(sm%7]);
[*]
[*]
[*] // OLED_WrDat(0x00);
[*]
[*] }
[*]
[*] if(trig==0)
[*] {
[*] delay100ms(10);
[*] while(trig);
[*] while(!trig);
[*]
[*] }
[*]
[*]}
[*]
[*]
[*] //启动超声波测距程序。。。。。。
[*] bosh:
[*] for(z=0;z<128;z++)
[*] {
[*] for(i=0;i<8;i++) //清屏
[*] {
[*] OLED_WrCmd(0xb0+i);
[*] OLED_WrCmd(0x00+(z%16));
[*] OLED_WrCmd(0x10+z/16);
[*] OLED_WrDat(0x00);
[*] }
[*] }
[*] for (i=0;i<8;i++)
[*] {
[*] OLED_P16x16Ch(i*16,i/8*2+2,i+8);
[*] }
[*]
[*]
[*] delay100ms(30);
[*] for(z=0;z<128;z++)
[*] {
[*] for(i=0;i<8;i++) //清屏
[*] {
[*] OLED_WrCmd(0xb0+i);
[*] OLED_WrCmd(0x00+(z%16));
[*] OLED_WrCmd(0x10+z/16);
[*] OLED_WrDat(0x00);
[*] }
[*] }
[*]
[*]
[*] while(1)
[*]{
[*] if(k1==0)
[*] {
[*] q=0;
[*] trig=0;
[*] delay_us(1000);
[*] trig=1;
[*]
[*] i=10;
[*] while(!echo)
[*] {
[*] delay_us(1);
[*] i--;
[*] i=0;
[*] }
[*] while(echo)
[*] {
[*] delay_us(1);
[*] q++;
[*] }
[*] q=q*0.21;
[*]
[*]
[*]
[*]
[*] while(!k1)
[*] {
[*] i++;
[*] delay100ms(1);
[*]
[*]
[*] if(i>50)
[*] return;
[*] }
[*]
[*]
[*]
[*]
[*] }
[*] //q=156;
[*] ju_li=q%10;
[*] ju_li=q/10%10;
[*] ju_li=q/100%10;
[*] ju_li=q/1000%10;
[*] ju_li=q/10000%10;
[*] for(i=0;i<5;i++)
[*] {
[*] oled1_8x16( 48+8*i,4,ju_li);
[*] }
[*] for (i=0;i<6;i++)
[*] {
[*] OLED_P16x16Ch(i*16,i/8*2,19+i);
[*] }
[*] for (i=0;i<3;i++)
[*] {
[*] OLED_P16x16Ch(i*16,i/8*2+2+2,19+6+i);
[*]
[*] }
[*] for (i=0;i<2;i++)
[*] {
[*] OLED_P16x16Ch(95+i*16,i/8*2+2+2,19+6+3+i);
[*] }
[*]
[*]}
[*]}
代码:
{:4_189:}最远距离多少 sr04模块最远距离4米 {:5_332:} {:5_332:}
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