 void timerIsr()
 { 
   interruptTemperature(); // get temperature data and request measure
+  
+   // Serial.print("*** at timer\n");
+
   
   loop_water_flow(&input_heat);
   loop_water_flow(&input_pipe);


void setup(void)
{

  //  Serial.begin(9600);      // open the serial port at 9600 bps:    


  // 1-wire devices temperature


  pinMode(RELAY1_2, OUTPUT);
  pinMode(RELAY1_3, OUTPUT);

  // pin mode for flow meter 
  pinMode(HEAT_FLOW_SENSOR, INPUT);
  pinMode(PIPE_FLOW_SENSOR, INPUT);

  
  // keep valves closed at setup
