Code:


#include <stdio>
#include <fcntl>
#include <stdlib>
#include "/usr/include/linux/i2c-dev.h"

int main(void)
{

while (1){
   int fd;
   char filename[20];
   char buf[10];
   int value0=0;

   sprintf(filename, "/dev/i2c-0");
   fd = open(filename, O_RDWR);
   if (fd < 0) {
      printf("Error on open\n");
      exit(1);
   }

   if (ioctl(fd, I2C_SLAVE, 0x48) < 0) {
      printf("Error on slave address\n");
      exit(1);
   }


   buf[0] = 0x8C;
        write(fd,buf,1);

   // Wait for the measurement
   usleep(300000);

   read(fd,buf,2);
   
   value0 = buf[0]<<8;

   value0 |= buf[0];
   

   printf("Value =%d\n",value0);   
   close(fd);
}
   return 0;   
}


Statistics: Posted by Zacohk — Thu Jul 28, 2011 3:40 pm

Code:


#include <stdio>
#include <fcntl>
#include <stdlib>
#include "/usr/include/linux/i2c-dev.h"
#define BMA180_ID       0x00
#define BMA180_ADDR     0x40 //device id
#define BMA180_X_ACC    0x02
#define BMA180_Y_ACC    0x04
#define BMA180_Z_ACC    0x06

int main(void)
{
   int fd;
   char filename[20];
       
        char data[2];
        int16_t x,y,z;

   sprintf(filename, "/dev/i2c-0");
   fd = open(filename, O_RDWR);
   if (fd < 0) {
      printf("Error on open\n");
      exit(1);
   }

   if (ioctl(fd, I2C_SLAVE, 0x40) <0>>= 2;
        x  = *((int16_t*)data);
       
        data[0] = BMA180_Y_ACC;
        write(fd, data, 1);
        read(fd, data, 2);
   data[0] >>= 2;
        y  = *((int16_t*)data);
       
        data[0] = BMA180_Z_ACC;
        write(fd, data, 1);
        read(fd, data, 2);
   data[0] >>= 2;
        z  = *((int16_t*)data);

   
       printf ("X: %d Y: %d Z: %d\n", x/136, y/136, z/136);
       printf("x: %.1f y: %.1f z: %.1f\n", x/16384.0f, y/16384.0f, z/16384.0f); //2^14

       
}
   close(fd);
   return 0;   
}


Statistics: Posted by Zacohk — Thu Jul 28, 2011 3:38 pm

Code:


#include <stdio>
#include <fcntl>
#include <stdlib>
#include "/usr/include/linux/i2c-dev.h"

int main(void)
{
   int fd;
   char filename[20];
   char buf[10];
   int res;
   int range=0;

   sprintf(filename, "/dev/i2c-0");
   fd = open(filename, O_RDWR);
   if (fd < 0) {
      printf("Error on open\n");
      exit(1);
   }

   if (ioctl(fd, I2C_SLAVE, 0x70) < 0) {
      printf("Error on slave address\n");
      exit(1);
   }


   buf[0] = 0x00;
   buf[1] = 0x51;
   if ((write(fd,buf,2))!=2) {
      printf("Error send the read command\n");
      exit(1);
   }

   // Wait for the measurement
   usleep(66000);

   buf[0] = 0x02;
   if ((write(fd,buf,1))!=1) {
      printf("Error on select the Range High Byte\n");
      exit(1);
   }

   if ((read(fd,buf,1))!=1) {
      printf("Error on read the Range High Byte\n");
      exit(1);
   }
   range = buf[0]<<8;

   buf[0] = 0x03;
   if ((write(fd,buf,1))!=1) {
      printf("Error on select the Range Low Byte\n");
      exit(1);
   }

   if ((read(fd,buf,1))!=1) {
      printf("Error on read the Range Low Byte\n");
      exit(1);
   }
   range |= buf[0];

   printf("Range=%d cm\n",range);   
   close(fd);

   return 0;   
}



Statistics: Posted by Zacohk — Thu Jul 28, 2011 3:35 pm

Statistics: Posted by Zacohk — Thu Jul 28, 2011 3:32 pm

Statistics: Posted by Bullit — Mon Mar 28, 2011 4:27 am

Statistics: Posted by billyzelsnack — Sat Mar 26, 2011 6:55 pm

Statistics: Posted by Zacohk — Sat Mar 26, 2011 4:03 pm

Statistics: Posted by PedroR — Tue Mar 22, 2011 5:28 pm

Statistics: Posted by PedroR — Tue Mar 22, 2011 4:06 pm

Statistics: Posted by billyzelsnack — Sat Mar 19, 2011 8:03 pm

Statistics: Posted by Zacohk — Sat Mar 19, 2011 4:20 pm

Build Debian kernel & rootf : (done) Debian Squeeze with headers. Linux 2.6.32.2
Wlan (done)
Remote motions control (done)
Remote master slave control : (done)
Video streaming - 2 ways : (done)
Vision/Blob recognitions (not started)
Sound streaming - 2 ways (wip) - can play stream, can record sound
Speech Synthesis (done) - flite working well, espeak is choppy but still usable
Speech Recognition (wip)
Remote Sensors monitoring (done) Battery level, accelerometer, distance, temperature
Lcd usb display (done) - hacked 1.5" key chain
Oled i2c display (wip)
Auto charging (not started)

Statistics: Posted by limor — Thu Mar 17, 2011 2:48 pm

Statistics: Posted by Zacohk — Sat Feb 26, 2011 4:19 pm

Statistics: Posted by Zacohk — Sat Feb 26, 2011 4:10 pm

Statistics: Posted by Zacohk — Mon Feb 07, 2011 5:46 am