second version code nearly finished and functional. only for low temp…

… bismuth solder so far

50x70_tiny.kicad_prl

@@ -1,6 +1,6 @@
 {
   "board": {
-    "active_layer": 37,
+    "active_layer": 0,
     "active_layer_preset": "",
     "auto_track_width": false,
     "hidden_nets": [],

tiny/tiny.ino

@@ -17,13 +17,6 @@ int target, lasttarget, conval, phase;
 int fet = 255; //power sent to the heater
 bool heat = 0, lastheat, test;
 
-long sn64pb37[] {150, 60000, 160, 120000, 230, 20000};  //reflow temps and time. preheat 150C for 60000ms, soak 160 for 120000ms, reflow 230 for 20000ms
-long sac305[] {150, 60000, 170, 120000, 250, 15000};  //first two are from compuphase
-long Sn42Bi576Ag04[] {90, 5000, 110, 90000, 165, 5000};  //this one's based on chipquik paste
-long testarray[] {30, 5000, 40, 10000, 50, 10000};
-
-long *values;
-
 int paste = 2;  //used to cycle between temps, starts at bismuth mix temps
 
 long getmillis, startmillis, timer;
@@ -157,42 +150,6 @@ void loop(){
       }*/
     }
 
-    if(phase == 0){  //if the first phase is active
-      target = values[0];  //get the starting temp and time
-      timer = values[1];
-
-    }
-    if(phase == 1){
-      target = values[2];  //next values
-      timer = values[3];
-    }
-    if(phase == 2){
-      target = values[4];  //next values
-      timer = values[5];
-    }
-    if(phase == 3){  //when it gets to this phase, shut down heater and reset the counter
-      phase == 0;
-      heat == 0;
-    }
-
-    if(T == target & !test){  //start timer and make sure it only runs once
-      startmillis = getmillis;
-      test = 1;
-    }
-    if(getmillis > (startmillis + timer)){  //if the timer's run out, run this
-      phase++;
-      test = 0;
-    }
-
-   if(target > T){
-    analogWrite(1, fet);  //set heating power
-    oled.setCursor(0, 0);
-    oled.print("H");  //for heating
-   }
-  }
-  else{
-    analogWrite(1, 0);
-  }
 
   lasttarget = target;
   lasttemp = T2;

tinycode2/tinycode2.ino

@@ -0,0 +1,253 @@
+#include <SmoothThermistor.h>
+
+#include <TinyWireM.h>
+#include <USI_TWI_Master.h>
+
+#include <Tiny4kOLED.h>
+
+float T;
+float lasttemp;
+
+int cal = 1;
+int avgtemp;
+
+int paste = 0;
+int stage = 0;
+
+bool heat = 0;
+
+long startmillis;
+long targetmillis;
+
+SmoothThermistor therm(A3, ADC_SIZE_10_BIT, 100000, 100000, 3950, 25, 5);
+
+
+void setup(){
+  pinMode(1, OUTPUT);
+
+  oled.begin();
+  oled.setFont(FONT8X16);
+  oled.on();
+
+
+//SmoothThermistor smoothThermistor(A0,              // the analog pin to read from
+//                                   ADC_SIZE_10_BIT, // the ADC size
+//                                   10000,           // the nominal resistance
+//                                   10000,           // the series resistance
+//                                   3950,            // the beta coefficient of the thermistor
+//                                   25,              // the temperature for nominal resistance
+//                                   10);             // the number of samples to take for each measurement
+
+}
+
+void loop(){
+
+ T = therm.temperature();
+
+  avgtemp = T;
+
+  if(avgtemp != lasttemp){  //checks if the temps or targets have changed and only then updates the screen
+    oled.clear();
+  }
+
+  oled.setCursor(0, 0);
+  oled.print(avgtemp);
+
+  while(analogRead(A2) > 300 & analogRead(A2) < 550){  //probably overcomplicated button-reading
+    while(analogRead(A2) > 300 & analogRead(A2) < 550){ //checks if you're holding the button
+        oled.clear();
+        oled.setCursor(0, 0);
+        oled.print("Settings changed to:");
+        delay(500);
+        paste++;
+
+        if(paste == 4){  //cycle back
+          paste = 0;
+        }
+
+        if(paste == 0){
+          oled.clear();
+          oled.setCursor(0, 0);
+          oled.print("Sn64 Pb37");
+          delay(1000);
+        }
+
+        if(paste == 1){
+          oled.clear();
+          oled.setCursor(0, 0);
+          oled.print("SAC 305");
+          delay(1000);
+        }
+
+        if(paste == 2){
+          oled.clear();
+          oled.setCursor(0, 0);
+          oled.print("Sn42 Bi57,6 Ag\n0,6");
+          delay(1000);
+        }
+
+        if(paste == 3){
+          oled.clear();
+          oled.setCursor(0, 0);
+          oled.print("testval");
+          delay(1000);
+        }
+        oled.clear();
+      }
+    }
+
+
+
+  while(analogRead(A2) > 600){  //more overcomplicated button-reading
+    while(analogRead(A2) > 600){}
+        oled.clear();
+        oled.setCursor(0, 0);
+        oled.print("Heat enabled");
+        delay(1000);
+        heat = 1;
+        oled.clear();
+      }
+
+
+if(heat && paste == 0){
+  sn64();
+}
+
+if(heat && paste == 1){
+  SAC();
+}
+
+if(heat && paste == 2){
+  sn42();
+}
+
+lasttemp = avgtemp;
+}
+
+/*
+Sn64 Pb37 soak 125C 90 sec, reflow 230C
+SAC 305 soak 160C 90 sec, reflow 250C
+Sn42 Bi57,6 Ag\n0,6 soak 110C 90 sec, reflow 165C
+*/
+
+void sn64(){
+
+}
+
+void SAC(){
+
+}
+
+void sn42(){
+  startmillis = millis();
+  while(1){
+    T = therm.temperature();
+      avgtemp = T;
+
+//    if(avgtemp != lasttemp){  //checks if the temps or targets have changed and only then updates the screen
+    oled.clear();
+//    }
+
+    oled.setCursor(0, 0);
+    oled.print(avgtemp);
+
+    oled.setCursor(25, 0);
+    oled.print("C");
+
+    analogWrite(1, 255);
+
+    oled.setCursor(0, 26);
+    oled.print("heating");
+
+    if(avgtemp >= 110){
+      break;
+    }
+
+    delay(500);
+//    lasttemp = T;
+  }
+
+  while(1){
+    T = therm.temperature();
+      avgtemp = T;
+
+    oled.setCursor(0, 0);
+    oled.print(avgtemp);
+
+    oled.setCursor(0, 26);
+    oled.print("soaking");
+
+    if(avgtemp < 110){
+      analogWrite(1, 255);
+    }
+    else{
+      analogWrite(1, 0);
+    }
+    if(millis() > startmillis + 90000){
+      break;
+    }
+
+    delay(500);
+
+    lasttemp = T;
+  }
+
+
+
+
+  while(1){
+    T = therm.temperature();
+      avgtemp = T;
+
+//    if(avgtemp != lasttemp){  //checks if the temps or targets have changed and only then updates the screen
+    oled.clear();
+//    }
+
+    oled.setCursor(0, 0);
+    oled.print(avgtemp);
+
+    oled.setCursor(25, 0);
+    oled.print("C");
+
+    analogWrite(1, 255);
+
+    oled.setCursor(0, 26);
+    oled.print("heating");
+
+    if(avgtemp >= 160){
+      break;
+    }
+
+    delay(500);
+//    lasttemp = T;
+  }
+
+  startmillis = millis();
+
+  while(1){
+    T = therm.temperature();
+      avgtemp = T;
+
+    oled.setCursor(0, 0);
+    oled.print(avgtemp);
+
+    oled.setCursor(0, 26);
+    oled.print("reflowing");
+
+    if(avgtemp < 160){
+      analogWrite(1, 255);
+    }
+    else{
+      analogWrite(1, 0);
+    }
+    if(millis() > startmillis + 60000){
+      break;
+    }
+
+    delay(500);
+
+    lasttemp = T;
+  }
+  digitalWrite(1, 0);
+  heat == 0;
+}