Add water level detection

Greenhouse.ino

@@ -421,11 +421,7 @@ ISR (WDT_vect)
 void checkBat() {
   if(debug) {
     String out = "[  OK  ] Battery: ";
-    int y = 0;
-    for(int x = 0; x < 20; x++) {
-      y += analogRead(0);
-      delay(10);
-    }
+    int y = checkPin(0, 20);
     if(analogRead(1) > 910) {
       out += "Using solar power";
     } else {
@@ -438,11 +434,7 @@ void checkBat() {
     printFastCText(out);
   } else {
     String out = "Battery: ";
-    int y = 0;
-    for(int x = 0; x < 20; x++) {
-      y += analogRead(0);
-      delay(10);
-    }
+    int y = checkPin(0, 20);
     if(analogRead(1) > 910) {
       out += "Using solar.";
     } else {
@@ -452,6 +444,27 @@ void checkBat() {
     tft.fillRect(160, 0, 160, 20, ILI9341_WHITE); 
     tft.drawString(out.c_str(), 162, 2, 2);
   }
+  // check water level
+  // A15: Top
+  // A13: Bottom
+  // 47: Power
+  digitalWrite(47, HIGH);
+  int a = checkPin(15, 20);
+  int b = checkPin(14, 20);
+  int c = checkPin(13, 20);
+  digitalWrite(47, LOW);
+  if(c > 200) drawButton(140, 2, 16, 16, "", ILI9341_RED);
+  if(b > 200) drawButton(140, 2, 16, 16, "", ILI9341_YELLOW);
+  if(a > 200) drawButton(140, 2, 16, 16, "", ILI9341_GREEN);
+}
+
+int checkPin(int pin, int count) {
+  int out = 0;
+  for (int x = 0; x < count, x++) {
+    out += analogRead(pin);
+    delay(10);
+  }
+  return out / count;
 }
 
 void runWater() {
@@ -459,9 +472,11 @@ void runWater() {
   upd = true;
   pinMode(7, OUTPUT);
   digitalWrite(7, HIGH);
+  delay(1000);
   getMoisture();
   if(s1 && map(soil1.touchRead(0), 0, 1023, 0, 100) <= 50) {
     int td = 50 - map(soil1.touchRead(0), 0, 1023, 0, 100);
+    td *= 5;
     String out = "[ INFO ] Running water on box 1 for ";
     out += td / 10.0;
     out += " sec.";
@@ -472,6 +487,7 @@ void runWater() {
   }
   if(s2 && map(soil2.touchRead(0), 0, 1023, 0, 100) <= 50) {
     int td = 50 - map(soil2.touchRead(0), 0, 1023, 0, 100);
+    td *= 5;
     String out = "[ INFO ] Running water on box 2 for ";
     out += td / 10.0;
     out += " sec.";
@@ -482,6 +498,7 @@ void runWater() {
   }
   if(s3 && map(soil3.touchRead(0), 0, 1023, 0, 100) <= 50) {
     int td = 50 - map(soil3.touchRead(0), 0, 1023, 0, 100);
+    td *= 5;
     String out = "[ INFO ] Running water on box 3 for ";
     out += td / 10.0;
     out += " sec.";
@@ -492,6 +509,7 @@ void runWater() {
   }
   if(s4 && map(soil4.touchRead(0), 0, 1023, 0, 100) <= 50) {
     int td = 50 - map(soil4.touchRead(0), 0, 1023, 0, 100);
+    td *= 5;
     String out = "[ INFO ] Running water on box 4 for ";
     out += td / 10.0;
     out += " sec.";