#include "mbed.h"
LocalFileSystem local("local");                 // Create the local filesystem under the name "local"
I2C tempsensor(p9,p10);//sda, sc1
Serial pc(USBTX, USBRX); //tx,rx
const int addr = 0x90;
char config_t[3];
char temp_read[2];
float temp;


int main(){
    config_t[0] = 0x01; // set pointer reg to 'config register'
    config_t[1] = 0x60; // config data byte1
    config_t[2] = 0xA0; // config data byte2
    tempsensor.write(addr,config_t,3);
    config_t[0] = 0x00; // set pointer reg to 'data register'
    tempsensor.write(addr,config_t,1); //send to pointer 'read temp'
    while(1) {
        wait(1);
        tempsensor.read(addr,temp_read,2); //read the two-byte temp data
        temp = 0.0625 *(((temp_read[0] << 8) +temp_read[1]) >> 4); //convert data
        pc.printf("Temp = %.2f degC \n\r",temp);
        // Write to local file
        FILE *fp = fopen("/local/test.txt", "w");  // Open "test.txt" on the local file system for appending
            for (int i=0; i<120*160; i++) {
            fprintf(fp, " %.2f",temp);
            }
            
    }
}