first commit

Author: jedgarpark

CLUE_BBQ/clue_bbq.py

@@ -0,0 +1,148 @@
+# Adafruit BBQ display works with ibbq protocol-based BLE temperature probes
+
+
+import time
+
+import displayio
+import _bleio
+import adafruit_ble
+from adafruit_ble.advertising.standard import ProvideServicesAdvertisement
+from adafruit_ble_ibbq import IBBQService
+from adafruit_clue import clue
+from adafruit_display_shapes.circle import Circle
+from adafruit_display_text import label
+from adafruit_bitmap_font import bitmap_font
+
+clue.display.brightness = 1.0
+homescreen_screen = displayio.Group(max_size=3)
+temperatures_screen = displayio.Group(max_size=2)
+
+# define custom colors
+GREEN =   0x00d929
+BLUE =    0x0000ff
+RED =     0xff0000
+ORANGE =  0xff6a00
+YELLOW =  0xffff00
+PURPLE =  0xe400ff
+BLACK =   0x000000
+WHITE =   0xffffff
+BURNT =   0xbb4e00
+
+unit_mode = False  # set the temperature unit_mode. True = centigrade, False = farenheit
+
+# background fill
+color_bitmap = displayio.Bitmap(120, 120, 1)
+color_palette = displayio.Palette(1)
+color_palette[0] = BURNT
+bg_sprite = displayio.TileGrid(color_bitmap, x=120, y=0, pixel_shader=color_palette)
+homescreen_screen.append(bg_sprite)
+
+clue_color = [GREEN, BLUE, RED, ORANGE, YELLOW, PURPLE]
+
+outer_circle = Circle(120, 120, 119, fill=BLACK, outline=BURNT)
+homescreen_screen.append(outer_circle)
+
+
+title_font = bitmap_font.load_font("/font/GothamBlack-50.bdf")
+title_font.load_glyphs("BQLUE".encode('utf-8'))
+title_label = label.Label(title_font, text="BBQLUE", color=clue.ORANGE, max_glyphs=15)
+title_label.x = 12
+title_label.y = 120
+homescreen_screen.append(title_label)
+
+clue.display.show(homescreen_screen)
+
+
+temp_font = bitmap_font.load_font("/font/GothamBlack-25.bdf")
+temp_font.load_glyphs("0123456789FC.-<".encode('utf-8'))
+
+my_labels_config = [(0, "", GREEN, 2, 100),
+                    (1, "", BLUE, 2, 150),
+                    (2, "", RED, 2, 200),
+                    (3, "", ORANGE, 135, 100),
+                    (4, "", YELLOW, 135, 150),
+                    (5, "", PURPLE, 135, 200)
+                   ]
+
+my_labels = {}  # dictionary of configured my_labels
+
+text_group = displayio.Group(max_size=8, scale=1)
+
+for label_config in my_labels_config:
+    (name, text, color, x, y) = label_config  # unpack a tuple into five var names
+    # old way sould have been: name = label_config[0], text = label_config[1]
+    templabel = label.Label(temp_font, text=text, color=color, max_glyphs=15)
+    templabel.x = x
+    templabel.y = y
+    my_labels[name] = templabel
+    text_group.append(templabel)
+
+temperatures_screen.append(text_group)
+
+temp_title_label = label.Label(title_font, text="BBQLUE", color=clue.ORANGE, max_glyphs=15)
+temp_title_label.x = 12
+temp_title_label.y = 30
+temperatures_screen.append(temp_title_label)
+
+# PyLint can't find BLERadio for some reason so special case it here.
+ble = adafruit_ble.BLERadio()  # pylint: disable=no-member
+
+ibbq_connection = None
+
+while True:
+    # re-display homescreen here
+    clue.display.show(homescreen_screen)
+
+    print("Scanning...")
+    for adv in ble.start_scan(ProvideServicesAdvertisement, timeout=5):
+        clue.pixel.fill((50, 50, 0))
+        if IBBQService in adv.services:
+            print("found an IBBq advertisement")
+            ibbq_connection = ble.connect(adv)
+            print("Connected")
+            break
+
+    # Stop scanning whether or not we are connected.
+    ble.stop_scan()
+
+    try:
+        if ibbq_connection and ibbq_connection.connected:
+            clue.pixel.fill((0, 0, 50))
+            ibbq_service = ibbq_connection[IBBQService]
+            ibbq_service.init()
+            while ibbq_connection.connected:
+
+                if clue.button_a:  # hold a to swap between C and F
+                    print("unit_mode swapped")
+                    unit_mode = not unit_mode
+                    clue.red_led = True
+                    clue.play_tone(1200, 0.1)
+                    clue.red_led = False
+                    time.sleep(0.1)  # debounce
+
+                temps = ibbq_service.temperatures
+                batt = ibbq_service.battery_level
+                if temps is not None:
+                    probe_count = len(temps)  # check how many probes there are
+                    for i in range(probe_count):
+                        if (temps[i] is not 0 and temps[i] < 1000):  # unplugged probes
+                            if unit_mode:
+                                clue.pixel.fill((50, 0, 0))
+                                temp = temps[i]
+                                my_labels[i].text = "{} C".format(temp)
+                                clue.pixel.fill((0, 0, 0))
+                                print("Probe", i+1, "Temperature:", temp,"C",)
+                            else:  # F
+                                clue.pixel.fill((50, 0, 0))
+                                temp = temps[i] * 9 / 5 + 32
+                                my_labels[i].text = "{} F".format(temp)
+                                clue.pixel.fill((0, 0, 0))
+                                print("Probe", i+1, "Temperature:", temp,"F",)
+                        else:
+                            print("Probe", i+1, "is unplugged",)
+                            my_labels[i].text = ("  ---")
+                    clue.display.show(temperatures_screen)
+
+    except _bleio.ConnectionError:
+        # Redisplay splash screen here, or put it at top of while True:
+        continue