add chart + buttons

reflow_plate_fw/src/thermo.cpp

@@ -1,12 +1,32 @@
 #include "thermo.h"
 
+Thermocouple *thermocouple = NULL;
 
-void initThermo(void)
+uint32_t thermo_lastTime = 0;
+
+double lastTemperature = 0;
+
+// the setup function runs once when you press reset or power the board
+void initThermo()
 {
-
+  Thermocouple *originThermocouple = new MAX6675_Thermocouple(THERM_CL, THERM_CS, THERM_SO);
+  thermocouple = new SmoothThermocouple(originThermocouple, SMOOTHING_FACTOR);
 }
 
+// the loop function runs over and over again forever
 void handleThermo(void)
 {
+  // Reads temperature
+  uint32_t timeNow = millis();
+  if (timeNow - thermo_lastTime > THERMO_INTERVAL)
+  {
+    lastTemperature = thermocouple->readCelsius();
+  }
 
-}
+  //delay(100); // optionally, only to delay the output of information in the example.
+}
+
+double getTemperature(void)
+{
+  return lastTemperature;
+}