grill dashboard code

Grill_Thermometer_Dashboard/code.py

@@ -0,0 +1,115 @@
+# SPDX-FileCopyrightText: 2024 johnpark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+'''
+BLE BBQ Thermometer to WiFi to Adafruit IO Dashboard
+Feather ESP32-S3 8MB No PSRAM
+'''
+import os
+import time
+import adafruit_connection_manager
+import wifi
+import adafruit_minimqtt.adafruit_minimqtt as MQTT
+import adafruit_ble
+from adafruit_ble.advertising.standard import ProvideServicesAdvertisement
+from adafruit_ble_ibbq import IBBQService
+
+
+aio_username = os.getenv("aio_username")
+aio_key = os.getenv("aio_key")
+
+print(f"Connecting to {os.getenv('CIRCUITPY_WIFI_SSID')}")
+wifi.radio.connect(
+    os.getenv("CIRCUITPY_WIFI_SSID"), os.getenv("CIRCUITPY_WIFI_PASSWORD")
+)
+print(f"Connected to {os.getenv('CIRCUITPY_WIFI_SSID')}")
+
+### Feeds ###
+feeds = [aio_username + f"/feeds/bbq{i}" for i in range(1, 7)]
+battery_feed = aio_username + "/feeds/bbq_battery"
+
+# Define callback methods which are called when events occur
+# pylint: disable=unused-argument, redefined-outer-name
+def connected(client, userdata, flags, rc):
+    print("Connected to Adafruit IO")
+
+def disconnected(client, userdata, rc):
+    print("Disconnected from Adafruit IO")
+
+# Create a socket pool
+pool = adafruit_connection_manager.get_radio_socketpool(wifi.radio)
+ssl_context = adafruit_connection_manager.get_radio_ssl_context(wifi.radio)
+connection_manager = adafruit_connection_manager.get_connection_manager(pool)
+
+# Set up a MiniMQTT Client
+mqtt_client = MQTT.MQTT(
+    broker="io.adafruit.com",
+    port=1883,
+    username=aio_username,
+    password=aio_key,
+    socket_pool=pool,
+    ssl_context=ssl_context,
+)
+
+# Setup the callback methods above
+mqtt_client.on_connect = connected
+mqtt_client.on_disconnect = disconnected
+
+# Connect the client to the MQTT broker.
+print("Connecting to Adafruit IO...")
+mqtt_client.connect()
+
+# PyLint can't find BLERadio for some reason so special case it here.
+ble = adafruit_ble.BLERadio()  # pylint: disable=no-member
+
+ibbq_connection = None
+battery_percentage = 100
+
+def c_to_f(temp_c):
+    return (temp_c * 9/5) + 32
+
+def volt_to_percent(voltage, max_voltage):
+    return (voltage / max_voltage) * 100
+
+def probe_check(temp):  # if value is wildly high no probe is connected
+    return temp if temp <= 11000 else 0
+
+battery_val = 3.3
+
+
+while True:
+    print("Scanning...")
+    for adv in ble.start_scan(ProvideServicesAdvertisement, timeout=5):
+        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()
+
+    if ibbq_connection and ibbq_connection.connected:
+        ibbq_service = ibbq_connection[IBBQService]
+        ibbq_service.init()
+        while ibbq_connection.connected:
+            print(
+                "Temperatures:",
+                ibbq_service.temperatures,
+                "; Battery:",
+                ibbq_service.battery_level,
+            )
+
+            grill_vals = [probe_check(c_to_f(temp)) for temp in ibbq_service.temperatures]
+            battery_val, battery_max = ibbq_service.battery_level
+            battery_percentage = (volt_to_percent(battery_val, 3.3))
+
+            mqtt_client.loop(timeout=1)
+
+            for feed, val in zip(feeds, grill_vals):
+                print(f"Sending grill value: {val} to {feed}...")
+                mqtt_client.publish(feed, val)
+
+            mqtt_client.publish(battery_feed, battery_percentage)
+            print("Sent")
+            time.sleep(5)