next step on display

lib/ovenDisplay.py

@@ -1,7 +1,17 @@
 import threading,logging,json,time,datetime
 from oven import Oven
+from displayhatmini import DisplayHATMini
 log = logging.getLogger(__name__)
 
+try:
+    from PIL import Image, ImageDraw, ImageFont
+except ImportError:
+    print("""This example requires PIL/Pillow, try:
+
+sudo apt install python3-pil
+
+""")
+
 class OvenDisplay(threading.Thread):
     def __init__(self,oven,ovenWatcher):
         self.last_profile = None
@@ -11,6 +21,14 @@ class OvenDisplay(threading.Thread):
         self.observers = []
         threading.Thread.__init__(self)
         self.daemon = True
+        # display HAT setup
+        self.width = DisplayHATMini.WIDTH
+        self.height = DisplayHATMini.HEIGHT
+        self.buffer = Image.new("RGB", (width, height))
+        self.draw = ImageDraw.Draw(buffer)
+        self.displayhatmini = DisplayHATMini(buffer)
+        self.displayhatmini.set_led(0.05, 0.05, 0.05)
+        # oven setup
         self.oven = oven
         self.ovenWatcher = ovenWatcher
         ovenWatcher.add_observer(self)
@@ -26,10 +44,14 @@ class OvenDisplay(threading.Thread):
 
     def update_display(self, oven_state):
         log.info(oven_state)
+        self.text(oven_state, (25, 25), 15, (255, 255, 255))
+
 
     def send(self,oven_state):
         self.update_display(oven_state)
 
-
+    def text(self, text, position, size, color):
+        fnt = ImageFont.load_default()
+        self.draw.text(position, text, font=fnt, fill=color)