基于STM32、STM8、Arduino 51单片机的简易电子秤仿真程序资料 -

/**********************************************************************
***********************************************************************/
#include "main.h"
#include "HX711.h"
#include "uart.h"
#include "LCD1602.h"
#define uchar unsigned char
#define uint unsigned int
unsigned long HX711_Buffer = 0;
unsigned long Weight_Maopi = 0;
long Weight_Shiwu = 0;
long Weight_warn = 0;
unsigned char flag = 0;
bit Flag_ERROR = 0;
sbit speak= P1^7; //蜂鸣器
sbit jiare= P3^0; //继电器接口
uchar Ncunchu[5];
unsigned char num1,num2;
//校准参数
//因为不同的传感器特性曲线不是很一致，因此，每一个传感器需要矫正这里这个参数才能使测量值很准确。
//当发现测试出来的重量偏大时，增加该数值。
//如果测试出来的重量偏小时，减小改数值。不过该值也可以通过按键开修改，该程序中有体现出来的　?
//该值可以为小数
uint GapValue= 430;
#include "eeprom52.h"
/******************把数据保存到单片机内部eeprom中******************/
void write_eeprom()
{
Ncunchu[0] = Weight_warn/256;
Ncunchu[1] = Weight_warn%256;
num1=GapValue/256;
num2=GapValue%256;
SectorErase(0x2000);
byte_write(0x2011,Ncunchu[0]);
byte_write(0x2012,Ncunchu[1]);
byte_write(0x2001, num1);
byte_write(0x2002, num2);
byte_write(0x2060, a_a);
}
/******************把数据从单片机内部eeprom中读出来*****************/
void read_eeprom()
{
num1 = byte_read(0x2001);
num2 = byte_read(0x2002);
Ncunchu[0] = byte_read(0x2011);
Ncunchu[1] = byte_read(0x2012);
Weight_warn = Ncunchu[0]*256+Ncunchu[1];
GapValue= num1*256+num2;
a_a = byte_read(0x2060);
}
/**************开机自检eeprom初始化*****************/
void init_eeprom()
{
read_eeprom(); //先读
if(a_a != 156) //新的单片机初始单片机内问eeprom
{
a_a =156;
Weight_warn = 100;
GapValue= 430;
write_eeprom();
}
}
//****************************************************
//主函数
//****************************************************
void main()
{
// Uart_Init();
// Send_Word("Welcome to use!\n");
// Send_Word("Made by Beetle Electronic Technology!\n");
Init_LCD1602();
LCD1602_write_com(0x80);
LCD1602_write_word("Weight Warning");
init_eeprom(); //读eeprom数据
Delay_ms(1000); //延时,等待传感器稳定
Get_Maopi(); //称毛皮重量
Delay_ms(100);
Get_Maopi(); //称毛皮重量
Delay_ms(100);
Get_Maopi(); //多次去皮有利于稳定
while(1)
{
EA = 0;
Get_Weight(); //称重
EA = 1;
Scan_Key();
//显示当前重量
if( Flag_ERROR == 1)
{
// Send_Word("ERROR\n");
LCD1602_write_com(0x80+0x40);
LCD1602_write_word("ERROR ");
speak=0;
}
else
{
LCD1602_write_com(0x80+0x40);
LCD1602_write_data(Weight_Shiwu/1000 + 0X30);
LCD1602_write_data(Weight_Shiwu%1000/100 + 0X30);
LCD1602_write_data(Weight_Shiwu%100/10 + 0X30);
LCD1602_write_data(Weight_Shiwu%10 + 0X30);
LCD1602_write_word(" g");
LCD1602_write_com(0x80+0x40+8);
LCD1602_write_data(Weight_warn/1000 + 0X30);
LCD1602_write_data(Weight_warn%1000/100 + 0X30);
LCD1602_write_data(Weight_warn%100/10 + 0X30);
LCD1602_write_data(Weight_warn%10 + 0X30);
LCD1602_write_word(" g");
}
}
}
//扫描按键
void Scan_Key()
{
if(KEY1 == 0 && KEY2 == 1 && KEY3 ==1)
{
Delay_ms(5);
if(KEY1 == 0 && KEY2 == 1 && KEY3 ==1)
{
Get_Maopi();
}
}
if(KEY2 == 0 && KEY1 == 1 && KEY3 ==1)
{
Delay_ms(20);
if(KEY2 == 0 && KEY1 == 1 && KEY3 ==1)
{
// while(KEY2 == 0);
if(Weight_warn<=5000) { Weight_warn+=1;}
write_eeprom(); //保存数据
}
}
if(KEY3 == 0 && KEY2 == 1 && KEY1 ==1)
{
Delay_ms(20);
if(KEY3 == 0 && KEY2 == 1 && KEY1 ==1)
{
// while(KEY3 == 0);
if(Weight_warn>=2) Weight_warn-=1;
write_eeprom(); //保存数据
}
}
//=======================对实物进行重量校正================================
if(KEY1 == 0 && KEY2 == 0 && KEY3 ==1)
{
Delay_ms(25);
if(KEY1 == 0 && KEY2 == 0 && KEY3 ==1)
{
if(GapValue<9999) { GapValue++; }
write_eeprom(); //保存数据
}
}
if(KEY1 == 0 && KEY2 == 1 && KEY3 ==0)
{
Delay_ms(25);
if(KEY1 == 0 && KEY2 == 1 && KEY3 ==0)
{
if(GapValue>1) { GapValue--; }
write_eeprom(); //保存数据
}
}
if(Weight_Shiwu<Weight_warn) {jiare=1; speak=1;} //继电器关闭
if(Weight_Shiwu>=Weight_warn) {jiare=0; speak=0; } //继电器打开
}
//****************************************************
//称重
//****************************************************
void Get_Weight()
{
Weight_Shiwu = HX711_Read();
Weight_Shiwu = Weight_Shiwu - Weight_Maopi; //获取净重
if(Weight_Shiwu > 0)
{
Weight_Shiwu = (unsigned int)((float)Weight_Shiwu/GapValue); //计算实物的实际重量
if(Weight_Shiwu > 5000) //超重报警
{
Flag_ERROR = 1;
}
else
{
Flag_ERROR = 0;
}
}
else
{
Weight_Shiwu = 0;
// Flag_ERROR = 1; //负重报警
}
}
//****************************************************
//获取毛皮重量
//****************************************************
void Get_Maopi()
{
Weight_Maopi = HX711_Read();
}
//****************************************************
//MS延时函数(12M晶振下测试)
//****************************************************
void Delay_ms(unsigned int n)
{
unsigned int i,j;
for(i=0;i<n;i++)
for(j=0;j<123;j++);
}

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