arduino小型體重稱hx711程序

ID:431677 · 發(fā)表于 2020-2-16 15:57

ardino制作，簡單體重計，使用壓力傳感器，通過公式轉(zhuǎn)換，串口顯示數(shù)據(jù)。

#include "hx711.h"
#define ValueGap 630
//該數(shù)值可用砝碼校準
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);
}
//****************************************************
//獲取毛皮重量
//****************************************************
void Get_Maopi()
{
Weight_Maopi = HX711_Read();
}
//****************************************************
//稱重
//****************************************************
unsigned int Get_Weight()
{
HX711_Buffer = HX711_Read();
Weight_Shiwu = HX711_Buffer;
Weight_Shiwu = Weight_Shiwu - Weight_Maopi; //獲取實物的AD采樣數(shù)值。
Weight_Shiwu = (int)((float)Weight_Shiwu/ValueGap+0.05);
return Weight_Shiwu;
}
//****************************************************
//讀取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);
}

復制代碼

ID:356403 · 發(fā)表于 2020-5-11 20:26

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