Update sensor_extension.c read bme

sensor_extension.c

@@ -19,12 +19,17 @@ void sensor_setup() {
 // Very Important: only use print, not println!!
 int sensor_loop(char *sensor_buffer) {
 
-   int sensors = 3;  // set to the number of sensor readings adding.
+   int sensors = 4;  // set to the number of sensor readings adding.
    sensor_buffer[0] = 0; // make sure buffer is empty
   
    printf("Reading new sensors!\n");
+
+   FILE *sensor_read = sopen("/home/pi/raspberry-pi-bme280/bme280");  // read BME if present 
+   fgets(sensor_buffer, 1000, sensor_read);
+//   fprintf(stderr, "result: %s\n", sensor_buffer);
+   fclose(sensor_read);
   
-   strcpy(sensor_buffer, "NEW 0.0 0.0 0.0");
+//   strcpy(sensor_buffer, "NEW 0.0 0.0 0.0");
 
    printf("New sensor string: %s\n", sensor_buffer);