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Fork of Hexi_Serial_Example by
main.cpp
- Committer:
- eddienuel
- Date:
- 2016-10-09
- Revision:
- 1:cad368af277b
- Parent:
- 0:79c0c4cd1ab3
File content as of revision 1:cad368af277b:
#include "mbed.h"
float _scale;
DigitalOut myled(LED_BLUE);
DigitalIn HX_DOUT(PTC3);
DigitalOut HX_PD_SCK(PTC5);
Serial pc(USBTX, USBRX);
long offset = 0;
long ReadWeight(void);
//double getGram();
uint16_t getGram();
long getAverageValue(int times);
int main()
{
offset = getAverageValue(20);
int i = 0;
pc.printf("Hello World!\n");
while (true) {
wait(0.5f); // wait a small period of time
pc.printf("%d \n", getGram()); // print the value of variable i
i++; // increment the variable
myled = !myled; // toggle a led
}
}
long ReadWeight(void)
{
long Count;
unsigned char i;
HX_PD_SCK.write(0);
Count = 0;
while(HX_DOUT.read() == 1);
for (i=0;i<24;i++)
{
HX_PD_SCK.write(1);
Count=Count<<1;
HX_PD_SCK.write(0);
if(HX_DOUT.read() == 1) Count++;
}
HX_PD_SCK.write(1);
Count=Count^0x800000;
HX_PD_SCK.write(0);
return(Count);
}
//double getGram(){
// return ((getAverageValue(20) - offset)*0.0000407059);//8409088
// //return getAverageValue(20);// - offset)*0.00793457031);//8409088
//
//}
uint16_t getGram(){
return ((getAverageValue(20) - offset))/1000;//*0.0000407059);//8409088
//return getAverageValue(20);// - offset)*0.00793457031);//8409088
}
long getAverageValue(int times){
long sum = 0;
for (int i = 0; i < times; i++)
{
sum += ReadWeight();
}
return sum / times;
}
