Arduino电子秤代码与制作 -

标题: Arduino电子秤代码与制作 [打印本页]

作者: 探索软件 时间: 2018-12-18 16:32
标题: Arduino电子秤代码与制作

代码:

//电子秤
#include "LCD12864RSPI.h"
#define AR_SIZE( a ) sizeof( a ) / sizeof( a[0] )
#include "HX711.h"
int Weight = 0;
unsigned char show0[]={0xB5, 0xE7,  0xD7, 0xD3,  0xB3, 0xD3};  //电子秤
unsigned char show1[]="================";//横隔线
unsigned char show2[]={ 0xD6, 0xD8,  0xC1, 0xBF,  0x3D, 0x00}; //重量=
unsigned char show3[]={0xBF, 0xCB};          //[克]
unsigned char show4[]={0xCC, 0xBD,  0xCB, 0xF7,  0xC8, 0xED,  0xBC, 0xFE,  0x20, 0x00,  0xD6, 0xC6};  //探索软件制
char str[4];                            //定义重量值存储数组，5位，其中4位为数字，1位为小数点
int temp =0;                      //定义重量值中间变量,，用于将获取的float型重量值转变为unsigned char数组

void setup(){
Serial.begin(9600);
LCDA.Initialise();                   // 屏幕初始化
delay(100);
LCDA.DisplayString(0,2,show0,AR_SIZE(show0));  //第1行第2格开始，显示文字"电子秤"
LCDA.DisplayString(1,0,show1,AR_SIZE(show1));//第2行第2格开始，显示横隔线
LCDA.DisplayString(2,1,show2,AR_SIZE(show2));//第4行第2格开始，显示文字湿度
LCDA.DisplayString(2,7,show3,AR_SIZE(show3));
LCDA.DisplayString(3,1,show4,AR_SIZE(show4));
Init_Hx711();                               //初始化HX711模块连接的IO设置
Get_Maopi();             //获取毛皮
delay(3000);
Get_Maopi();             //获取毛皮
}

void loop(){
Weight = Get_Weight();       //计算放在传感器上的重物重量
temp =Get_Weight();
if(temp<0){  temp =0; }
dtostrf(temp,4,0,str);
LCDA.DisplayString(2,4,(unsigned char *)str,AR_SIZE(str));//第3行第4格开始值
//Serial.print("W="); //串口显示重量
//Serial.print(Weight);       //串口显示重量
//Serial.print(" g\n");       //显示单位
delay(1000);             //延时1s
}

HX711.h
#ifndef __HX711__H__
#define __HX711__H__
#include <Arduino.h>
#define HX711_SCK 6
#define HX711_DT 7
extern void Init_Hx711();
extern unsigned long HX711_Read(void);
extern unsigned int Get_Weight();
extern void Get_Maopi();
#endif

HX711.cpp
#include "hx711.h"

#define ValueGap 630
//该数值可用砝码校准

long HX711_Buffer = 0;
long Weight_Maopi = 0,Weight_Shiwu = 0;

//****************************************************
//初始化HX711
//****************************************************
void Init_Hx711()
{
      pinMode(HX711_SCK, OUTPUT);
      pinMode(HX711_DT, INPUT);
}

//****************************************************
//获取毛皮重量
//****************************************************
void Get_Maopi()
{
      Weight_Maopi = HX711_Read();
}

//****************************************************
//称重
//****************************************************
unsigned int Get_Weight()
{
      HX711_Buffer = HX711_Read();

      Weight_Shiwu = HX711_Buffer;
      Weight_Shiwu = Weight_Shiwu - Weight_Maopi;                               //获取实物的AD采样数值。

      Weight_Shiwu = (int)((float)Weight_Shiwu/ValueGap+0.05);

      return Weight_Shiwu;
}

//****************************************************
//读取HX711
//****************************************************
unsigned long HX711_Read(void)       //增益128
{
      unsigned long count;
      unsigned char i;
      bool Flag = 0;
      digitalWrite(HX711_DT, HIGH);
      delayMicroseconds(1);
      digitalWrite(HX711_SCK, LOW);
      delayMicroseconds(1);
      count=0;
      while(digitalRead(HX711_DT));
      for(i=0;i<24;i++)
      {
               digitalWrite(HX711_SCK, HIGH);
            delayMicroseconds(1);
               count=count<<1;
            digitalWrite(HX711_SCK, LOW);
            delayMicroseconds(1);
               if(digitalRead(HX711_DT))
                     count++;
      }
      digitalWrite(HX711_SCK, HIGH);
      delayMicroseconds(1);
      digitalWrite(HX711_SCK, LOW);
      delayMicroseconds(1);
      count ^= 0x800000;
      return(count);
}

作者: 1354736852 时间: 2020-7-8 22:41
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