add standardized text display for stats

Greenhouse.ino

@@ -277,6 +277,11 @@ void loop(void) {
       drawButton(0, 20, 320, 110, "Stop", "ILI9341_RED");
       drawButton(160, 130, 160, 110, "Back", "ILI9341_BLUE");
     }
+    if (menu == 2) {
+      drawButton(160, 130, 160, 110, "Back", "ILI9341_BLUE");
+      displayText(2, 30, false, 4);
+      // moisture, temperature, next cycle, how much water, power usage, sensor connections
+    }
     upd = false;
   }
   if(Serial.available() > 0) {
@@ -690,3 +695,11 @@ void button(int x, int y) {
   }
   delay(250);
 }
+
+void displayText(int x, int y, boolean center, String text, int size) {
+  if (center) {
+    tft.drawCentreString(text, x, y, size);
+  } else {
+    tft.drawString(text, x, y, size);
+  }
+}