arduino小型体重称hx711程序

ID:431677 · 发表于 2020-2-16 15:57

ardino制作，简单体重计，使用压力传感器，通过公式转换，串口显示数据。

#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);
}

复制代码

ID:356403 · 发表于 2020-5-11 20:26

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