     sprintf(&buffer[len], "pH=");
     len = strlen(buffer);
     dtostrf(ph, 1, 2, &buffer[len]);
-
+#endif // PH_SENSOR
+
+#if ORP_SENSOR
     // Add orp
     len = strlen(buffer);
     buffer[len] = ';';

    sprintf(&buffer[len], "RH=");
    len = strlen(buffer);
    dtostrf(humidity, 1, 1, &buffer[len]);

    // Add temperature
    len = strlen(buffer);
    buffer[len] = ';';
    len++;

    sprintf(&buffer[len], "E=");
    len = strlen(buffer);
    dtostrf(light_lvl, 1, 0, &buffer[len]);
#endif // LIGHT_LEVEL_SENSOR

#if PH_SENSOR
    // Add ph 
    len = strlen(buffer);
    buffer[len] = ';';
