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reflowctl/reflowctl.ino

@@ -14,6 +14,7 @@
 #define E_RAMPDOWN_TOO_FAST 2 // oven cools down too fast
 #define E_RAMPDOWN_TOO_SLOW 3 // oven cools down too slow
 #define E_TIME_MAX 4 // reflow process does take too long
+#define E_PEAK_TOO_LONG 5 // package was roasted
 
 unsigned int time = 0; // profile seconds
 unsigned int temperatur = 25; // actual oven temp
@@ -36,13 +37,15 @@ unsigned int Ts_max_time = 0;
 unsigned int Tl_time = 0;
 unsigned int Tl_time_end = 0;
 unsigned int Tp_time = 0;
+unsigned int Tp_time_end = 0;
 unsigned int Tl_end_time = 0;
 unsigned int error_condition = 0;
 
 byte state = START_STATE;
 
+int analogPin = 2;
+
 void setup() {
-  pinMode(13, OUTPUT);
   Serial.begin(9600);
 }
 
@@ -87,50 +90,61 @@ boolean check_tal_duration() {
   }
 }
 
-void loop() {
-  time = millis() / 1000;
-  get_temp();
-  Serial.print(time);
-  Serial.print(" ");
-  Serial.print(temperatur);
-  Serial.print(" ");
-  Serial.println(last_temperatur);
 
-  switch (state) {
-      case START_STATE:
-          // going from room temp to preheat, nothing to check here
-          if (!check_rampup_rate())
-              goto error;
-          if (temperatur > Ts_min) {
-              Serial.println("Changed state to PREHEAT_STATE");
-              Ts_min_time = time;
-              state++;
-          }
-      case PREHEAT_STATE:
-          if (temperatur > Ts_max) {
-            Serial.println("Changed state to PREHEAT_STATE");
-            Ts_max_time = time;
-            state++;
-          }
-          break;
-      case TAL_FIRST_STATE:
-        break;
-      case PEAK_STATE:
-        break;
-      case TAL_SECOND_STATE:
-        break;
-      case RAMPDOWN_STATE:
-        break;
-      case END_STATE:
-      default:
-        break;
+boolean check_peak_duration() {
+  if (Tp_time_end - Tp_time > peak_duration) {
+    error_condition = E_PEAK_TOO_LONG;
+    return false;
   }
-
-  delay(1000);
-
-  return;
-
-error:
-  state = END_STATE;
-  Serial.println(error_condition);
+}
+
+
+void loop() {
+//   time = millis() / 1000;
+//   get_temp();
+//   Serial.print(time);
+//   Serial.print(" ");
+//   Serial.print(temperatur);
+//   Serial.print(" ");
+//   Serial.println(last_temperatur);
+
+  Serial.println(analogRead(analogPin));
+
+//   switch (state) {
+//       case START_STATE:
+//           // going from room temp to preheat, nothing to check here
+//           if (!check_rampup_rate())
+//               goto error;
+//           if (temperatur > Ts_min) {
+//               Serial.println("Changed state to PREHEAT_STATE");
+//               Ts_min_time = time;
+//               state++;
+//           }
+//       case PREHEAT_STATE:
+//           if (temperatur > Ts_max) {
+//             Serial.println("Changed state to PREHEAT_STATE");
+//             Ts_max_time = time;
+//             state++;
+//           }
+//           break;
+//       case TAL_FIRST_STATE:
+//         break;
+//       case PEAK_STATE:
+//         break;
+//       case TAL_SECOND_STATE:
+//         break;
+//       case RAMPDOWN_STATE:
+//         break;
+//       case END_STATE:
+//       default:
+//         break;
+//   }
+//
+  delay(1000);
+//
+//   return;
+//
+// error:
+//   state = END_STATE;
+//   Serial.println(error_condition);
 }

serialmon.py

@@ -1,6 +1,11 @@
 #!/usr/bin/python
 
 import serial
-ser = serial.Serial('/dev/ttyUSB0', 9600)
+
 while 1:
-    print ser.readline()
+  try:
+    ser = serial.Serial('/dev/ttyUSB0', 9600)
+    while 1:
+      print ser.readline()
+  except Exception, e:
+      pass