 uint8_t config_tmp275;
 
 
-Systronix_PCA9548A PCA9548A_70(PCA9548A_SLAVE_ADDR_0);    
-
-Systronix_TMP275 Mux0Temp1(TMP275_SLAVE_ADDR_1);
-Systronix_TMP275 Mux1Temp1(TMP275_SLAVE_ADDR_1);
-Systronix_TMP275 Mux2Temp1(TMP275_SLAVE_ADDR_1);
+Systronix_PCA9548A PCA9548A_70;
+
+Systronix_TMP275 Mux0Temp0;
+Systronix_TMP275 Mux1Temp0;
+Systronix_TMP275 Mux2Temp0;
 
 const char * text_ptr;
 
 uint32_t startuptime = 0;
+uint32_t iter = 0;
 
 /* ========== SETUP ========== */
 void setup(void) 

#endif
   
  
  // start PCA9548A library
  PCA9548A_70.begin();

  config_value = PCA9548A_PORT_0_ENABLE;  // 


    Serial.printf(" Attempt #%u: Init control reg to 0x%.2X - ", iter, config_value); 
    if (SUCCESS != stat)
    {
      text_ptr = (PCA9548A_70.status_text[PCA9548A_70.error.error_val]);
      Serial.printf("failed - returned 0x%.2X: %s\r\n", PCA9548A_70.error.error_val, text_ptr);
#if defined I2C_T3_H 
    // reset I2C just to be safe
    // we may have interrupted a message in process of loading new code or Teensy reset
