code, final fonts

PyPortal_Azure_Plant_Monitor/code.py

@@ -1,6 +1,6 @@
 """
 PyPortal Azure IoT Plant Monitor
-===================================================
+====================================================
 Log plant vitals to Microsoft Azure IoT with
 your PyPortal
 
@@ -31,9 +31,7 @@ esp32_ready = DigitalInOut(board.ESP_BUSY)
 esp32_reset = DigitalInOut(board.ESP_RESET)
 spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
 esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)
-status_light = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.2) # Uncomment for Most Boards
-"""Uncomment below for ItsyBitsy M4"""
-#status_light = dotstar.DotStar(board.APA102_SCK, board.APA102_MOSI, 1, brightness=0.2)
+status_light = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.2)
 wifi = adafruit_esp32spi_wifimanager.ESPSPI_WiFiManager(esp, secrets, status_light)
 
 # Soil Sensor Setup
@@ -52,11 +50,9 @@ while True:
         moisture_level = ss.moisture_read()
         # read temperature
         temperature = ss.get_temp()
-        # Todo: make this nicer looking
-        print(moisture_level, temperature)
         # display soil sensor values on pyportal
         gfx.display_moisture(moisture_level)
-        gfx.display_temp(temperature)
+        temperature = gfx.display_temp(temperature)
         print('Sending data to Azure')
         gfx.display_azure_status('Sending data...')
         hub.send_device_message(temperature)
@@ -67,4 +63,4 @@ while True:
         print("Failed to get data, retrying\n", e)
         wifi.reset()
         continue
-    time.sleep(15)
+    time.sleep(60)

azure_gfx_helper.py

@@ -0,0 +1,119 @@
+"""
+GFX Helper for pyportal_azure_iot_temperature.py
+"""
+import board
+import displayio
+from adafruit_display_text.label import Label
+from adafruit_bitmap_font import bitmap_font
+
+cwd = ("/"+__file__).rsplit('/', 1)[0] # the current working directory (where this file is)
+
+# Fonts within /fonts folder
+info_font = cwd+"/fonts/Nunito-Black-17.bdf"
+temperature_font = cwd+"/fonts/Nunito-Light-75.bdf"
+
+class Azure_GFX(displayio.Group):
+    def __init__(self, celsius=False):
+        """Creates an Azure_GFX object.
+        :param bool celsius: Temperature displayed as F or C
+        """
+        # root displayio group
+        root_group = displayio.Group(max_size=20)
+        board.DISPLAY.show(root_group)
+        super().__init__(max_size=20)
+
+        self._celsius = celsius
+
+        # create background icon group
+        self._icon_group = displayio.Group(max_size=1)
+        self.append(self._icon_group)
+        board.DISPLAY.show(self._icon_group)
+        # create text object group
+        self._text_group = displayio.Group(max_size=6)
+        self.append(self._text_group)
+
+        self._icon_sprite = None
+        self._icon_file = None
+        self._cwd = cwd
+        self.set_icon(self._cwd+"/images/azure_splash.bmp")
+
+        print('Loading Fonts...')
+        glyphs = b'0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-,.:/ '
+        self.info_font = bitmap_font.load_font(info_font)
+        self.info_font.load_glyphs(glyphs)
+
+        self.c_font = bitmap_font.load_font(temperature_font)
+        self.c_font.load_glyphs(glyphs)
+        self.c_font.load_glyphs(('°',)) # extra glyph for temperature font
+
+        print('setting up labels...')
+        self.title_text = Label(self.info_font, text="Azure IoT Temperature Logger")
+        self.title_text.x = 55
+        self.title_text.y = 15
+        self._text_group.append(self.title_text)
+
+        self.temp_text = Label(self.c_font, max_glyphs=8)
+        self.temp_text.x = 25
+        self.temp_text.y = 110
+        self._text_group.append(self.temp_text)
+
+        self.azure_status_text = Label(self.info_font, max_glyphs=40)
+        self.azure_status_text.x = 100
+        self.azure_status_text.y = 220
+        self._text_group.append(self.azure_status_text)
+
+        board.DISPLAY.show(self._text_group)
+
+    def display_azure_status(self, status_text):
+        """Displays the current Azure IoT status.
+        :param str status_text: Description of Azure IoT status
+        """
+        self.azure_status_text.text = status_text
+
+    def display_temp(self, adt_data):
+        """Displays the data from the ADT7410 on the.
+        :param float adt_data: Value from the ADT7410
+        """
+        if not self._celsius:
+            adt_data = (adt_data * 9 / 5) + 32
+            print('Temperature: %0.2f°F'%adt_data)
+            if adt_data >= 212:
+                self.temp_text.color = 0xFD2EE
+            elif adt_data <= 32:
+                self.temp_text.color = 0xFF0000
+            self.temp_text.text = '%0.2f°F'%adt_data
+        else:
+            print('Temperature: %0.2f°C'%adt_data)
+            if adt_data <= 0:
+                self.temp_text.color = 0xFD2EE
+            elif adt_data >= 100:
+                self.temp_text.color = 0xFF0000
+            self.temp_text.text = '%0.2f°C'%adt_data
+
+    def set_icon(self, filename):
+        """Sets the background image to a bitmap file.
+
+        :param filename: The filename of the chosen icon
+        """
+        print("Set icon to ", filename)
+        if self._icon_group:
+            self._icon_group.pop()
+
+        if not filename:
+            return  # we're done, no icon desired
+        if self._icon_file:
+            self._icon_file.close()
+        self._icon_file = open(filename, "rb")
+        icon = displayio.OnDiskBitmap(self._icon_file)
+        try:
+            self._icon_sprite = displayio.TileGrid(icon,
+                                                   pixel_shader=displayio.ColorConverter())
+        except TypeError:
+            self._icon_sprite = displayio.TileGrid(icon,
+                                                   pixel_shader=displayio.ColorConverter(),
+                                                   position=(0,0))
+
+        self._icon_group.append(self._icon_sprite)
+        board.DISPLAY.refresh_soon()
+        board.DISPLAY.wait_for_frame()
+