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一款以INTEL公司出品的80C51单片机为核心的自动售货。以80C51作为CPU处理单元连接各个功能模块；以4*4矩阵键盘作为输入控制模块对货物进行种类和数量的选择以及模拟货币的投入功能；以LCD1602液晶作为显示模块来显示当前的购物状态以及货币状态；以LED的显示来表示当前选择货物以及出货的状态。通过Protues7.5单片机电路原理图进行连接布线连接各个模块；再用Keil uVision3专业编译软件完成源程序编译和调。
自动售货机的仿真原理图如下（proteus仿真工程文件可到本帖附件中下载）
自动售货机的单片机源程序如下:
- #include<reg51.h>
- /*******************define*************************/
- #define WAIT_SALE 0 //定义1602显示状态
- #define NO_WATER 1
- #define INPUT_MONEY 2
- #define SALING 3
- #define CHANGE 4
- #define CANCLE 5
- #define NO_DATA 0
- #define water_change(x, y) ((x) & (~(0x01 << y))) //宏 控制水种类的切换
- #define uint unsigned int
- #define uchar unsigned char
- unsigned char water_total[] = {10, 10, 10, 10, 10, 10, 10, 10};
- unsigned char water_price[] = {1, 2, 3, 4, 5, 6, 7, 8};
- uchar code wait_sale[]="for sale"; //定义所显示的内容
- uchar code no_water[] = "no water!";
- uchar code price[] = "price:";
- uchar code number[] = "num:";
- uchar code sum[] = "SUM:";
- uchar code input[] = "INPUT:";
- uchar code change[] = "change:";
- uchar code put_water[] = "put water...";
- uchar code cancle[] = "cancle...";
- unsigned char e=0x00;
- sbit P2_0=P2^0; //定义接端口
- sbit P2_1=P2^1;
- sbit P2_2=P2^2;
- sbit P2_3=P2^3;
- sbit lcd_en=P3^4;
- sbit rs=P3^2;
- sbit rw = P3^3;
- /****************************************************/
- /***********************function**********************************/
- /************lcd 1602*************************/
- void lcd_1602_delay(uint z) //延时
- {
- uint x,y;
- for(x=z;x>0;x--)
- for(y=110;y>0;y--);
- }
- void lcd_1602_write_com(uchar com) //写命令
- {
- rs=0;
- rw=0;
- P2=com;
- lcd_1602_delay(5);
- lcd_en=1;
- lcd_1602_delay(5);
- lcd_en=0;
- }
- void lcd_1602_write_data(uchar date) //写数据
- {
- rs=1;
- rw=0;
- P2=date;
- lcd_1602_delay(5);
- lcd_en=1;
- lcd_1602_delay(5);
- lcd_en=0;
- }
- void lcd_1602_init() //LCD1602初始化函数
- {
- lcd_en=0;
- lcd_1602_write_com(0x38);
- lcd_1602_write_com(0x0e);
- lcd_1602_write_com(0x06);
- lcd_1602_write_com(0x01);
- }
- void lcd_1602_wait_sure() //显示'OK'&'NO'界面
- {
- lcd_1602_write_com(0x80+0x40);
- lcd_1602_write_data('O');
- lcd_1602_write_data('K');
-
- lcd_1602_write_com(0x80+0x4e);
- lcd_1602_write_data('N');
- lcd_1602_write_data('O');
- }
- void lcd_1602_show_num(uint num) // 1602显示数字的函数
- {
- if(num <= 9)
- {
- lcd_1602_write_data('0'+num);
- lcd_1602_write_data(' ');
- }else if(num >= 10 )
- {
- lcd_1602_write_data('0'+num/10);
- lcd_1602_write_data('0'+num%10);
- }
- }
- void lcd1602_info_display(uint choose, uint num_type, uint num_count) //1602显示函数
- {
- int num;
- lcd_1602_write_com(0x01);
- switch(choose)
- {
- case WAIT_SALE:
- lcd_1602_write_com(0x80+0x03); //
- for(num = 0; num < 8; num++)
- {
- lcd_1602_write_data(wait_sale[num]);
- }
- break;
- case NO_WATER:
- lcd_1602_write_com(0x80+0x03);
- for(num = 0; num < 9; num++)
- {
- lcd_1602_write_data(no_water[num]);
- }
- break;
- case SALING:
- //price
- lcd_1602_write_com(0x80+0x00);
- for(num = 0; num < 6; num++)
- {
- lcd_1602_write_data(price[num]);
- }
- lcd_1602_write_data('0'+(num_type+1));
- lcd_1602_write_data(' ');
- //number
- lcd_1602_write_data(' ');
- for(num = 0; num < 4; num++)
- {
- lcd_1602_write_data(number[num]);
- }
- lcd_1602_show_num(num_count);
-
-
- break;
- case INPUT_MONEY:
- //need money
- lcd_1602_write_com(0x80+0x00);
- for(num = 0; num < 4; num++)
- {
- lcd_1602_write_data(sum[num]);
- }
- lcd_1602_show_num(num_type);
- //input
- lcd_1602_write_data(' ');
- lcd_1602_write_data(' ');
- for(num = 0; num < 6; num++)
- {
- lcd_1602_write_data(input[num]);
- }
- lcd_1602_show_num(num_count);
- break;
- case CHANGE:
- if(!num_count)
- {
- //put water
- lcd_1602_write_com(0x80+0x02);
- for(num = 0; num < 13; num++)
- {
- lcd_1602_write_data(put_water[num]);
- }
- }
- else
- {
- //cancle water
- lcd_1602_write_com(0x80+0x02); //取消选择时写命令退币
- for(num = 0; num < 9; num++)
- {
- lcd_1602_write_data(cancle[num]);
- }
- }
- //change
- lcd_1602_write_com(0x80+0x43);
- for(num = 0; num < 7; num++)
- {
- lcd_1602_write_data(change[num]);
- }
- lcd_1602_show_num(num_type);
- break;
- default:
- break;
- }
- lcd_1602_write_com(0x0c);
- }
- void lcd_1602_saling(uint type, uint num)
- {
- lcd1602_info_display(SALING, type, num);
- lcd_1602_wait_sure();
- }
- void lcd_1602_inputing(uint need, uint input)
- {
- lcd1602_info_display(INPUT_MONEY, need, input);
- lcd_1602_wait_sure();
- }
- /*************************************************/
- void delay1(unsigned int t) // 延时函数
- {
- unsigned int i,j;
- for(i=0;i<t;i++)
- for(j=0;j<10;j++);
- }
- void out_water() //推出水函数
- {
- int i, j = 100;
- while(j--)
- {
- for(i = 0; i < 8; i++)
- {
- P0 = water_change(0xff, i);
- delay1(50);
- }
- }
- P0 = 0xff;
- }
- unsigned char key(void) //按键响应函数
- {
- unsigned char key,key1,key2;
- P1=0XF0;
- if((P1&0XF0)!=0XF0) //ked down
- {
- delay1(10); //延时去抖动
- if((P1&0XF0)!=0XF0) //仍然有键按下
- {
- key1=P1&0XF0; //读入列线值
- P1=0X0F;
- key2=P1&0X0F;
- key=key1|key2;
- switch(key) //按键映射
- {
- case 0xee: e=0x00;break;
- case 0xde: e=0x01;break;
- case 0xbe: e=0x02;break;
- case 0x7e: e=0x03; break;
- case 0xed: e=0x04;break;
- case 0xdd: e=0x05;break;
- case 0xbd: e=0x06;break;
- case 0x7d: e=0x07; break;
- case 0xeb: e=0x08;break;
- case 0xdb: e=0x09;break;
- case 0xbb: e=0x0a;break;
- case 0x7b: e=0x0b; break;
- case 0xe7: e=0x0c;break;
- case 0xd7: e=0x0d;break;
- case 0xb7: e=0x0e;break;
- case 0x77: e=0x0f; break;
- }
- while((P1&0X0F)!=0X0F);
- delay1(10);
- return 1;
- }
- }
- return 0;
- }
- /*********************************************************************/
- /*****************main********************************/
- void main()
- {
- unsigned char ok = 0, water_type = -1, water_is_choose = 0;
- char water_count = 0;
- unsigned int flag = 0, money = 0, need_money;
- lcd_1602_init();
- again:
- ok = 0; water_type = -1; water_count = 0; water_is_choose = 0;
- flag = 0; money = 0; need_money = 0;
- lcd1602_info_display(WAIT_SALE, 0, 0);
- while(!ok) //choose the water and count
- {
- flag=key();
- if(flag)
- {
- switch(e) //不同的按键进行不同的操作
- {
- case(0x00):
- water_type++;
- water_is_choose = 1;
- if(water_type == 8)
- {
- water_type = 0;
- }
- P0 = water_change(0xff, water_type);
- break;
- case(0x01):
- water_type--;
- water_is_choose = 1;
- if(water_type == -1 || water_type == -2)
- {
- water_type = 7;
- }
- P0 = water_change(0xff, water_type);
- break;
- case(0x02):
- if(water_is_choose == 1)
- {
- water_count++;
- if(water_count > water_total[water_type])
- {
- water_count = water_total[water_type];
- }
- }
- break;
- case(0x03):
- if(water_is_choose == 1)
- {
- water_count--;
- if(water_count < 0)
- {
- water_count = 0;
- }
- }
- break;
- case(0x0e): // 返回
- goto again;
- break;
- case(0x0f): // 确认
- if(water_is_choose == 1)
- {
- ok=1;
- }
- break;
- default:
- break;
- }
- lcd_1602_saling(water_type, water_count);
- }
- }
-
- //choose ok: calculate the money //计算钱的总数
- need_money = water_count * water_price[water_type];
- lcd_1602_inputing(need_money, money);
- ok = 0;
- while(!ok) //get money
- {
- flag=key();
- if(flag)
- {
- switch(e)
- {
- case(0x04):
- money=money+1;
- break;
- case(0x05):
- money=money+5;
- break;
- case(0x06):
- money=money+10;
- break;
- case(0x07):
- money=money+20;
- break;
- case(0x08):
- money=money+50;
- break;
- case(0x09):
- money=money+100;
- break;
- case(0x0e): //back lcd1602_info_display(CHANGE, money, CANCLE);
- P0 = 0xff;
- delay1(50000);
-
- ……………………
- …………限于本文篇幅 余下代码请从51黑下载附件…………
所有资料51hei提供下载(论文+仿真+源码):
售货机.zip
(809.39 KB, 下载次数: 779)
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