298 lines
11 KiB
Python
298 lines
11 KiB
Python
import gc
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import sys
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import time
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import _thread
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from lib.microwaveScreen import MicrowaveScreen
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import uasyncio as asyncio
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from machine import Pin, SoftI2C
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import ssd1306
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import ujson
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# Clean memory immediately
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gc.collect()
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from shared.safeQueue import SafeQueue
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from shared import get_lora, get_uart, deviceTypes, config, cookingState
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from shared.uart_comm import UARTCommand, UARTCommandType
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from shared.sensors import RGBLED
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from shared.logging import log
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from shared.lora_device import LoraCommands
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# --- READ DEVICE ID ---
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try:
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with open("device_id.txt", "r") as f:
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DEVICE_ID = f.read().strip()
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except Exception:
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DEVICE_ID = "ESP32_Inconnu"
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# --- GLOBAL VARIABLES ---
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cooking_state = None
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data_queue = SafeQueue()
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lora = None
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uart_device = None
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magnetron_led = None
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microwave_screen = None
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defrost_mode = False
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current_temp = [None, None]
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last_temp = [None, None]
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temperature_asked = False
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PING_PAYLOAD = {
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"id": DEVICE_ID,
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"type": deviceTypes.DEVICE_TYPES["MICROWAVE"]
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}
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def init_hardware():
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"""Initializes all hardware components."""
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global lora, uart_device, magnetron_led, microwave_screen
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print("[Main] Initializing hardware peripherals...")
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# Power up VEXT (for LoRa/Display)
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vext = Pin(19, Pin.OUT)
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vext.value(0)
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time.sleep_ms(100)
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# Init OLED Display
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scl_pin = Pin(18, Pin.OUT, pull=Pin.PULL_UP)
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sda_pin = Pin(17, Pin.OUT, pull=Pin.PULL_UP)
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display_i2c = SoftI2C(scl=scl_pin, sda=sda_pin, freq=100000)
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display = ssd1306.SSD1306_I2C(128, 64, display_i2c, addr=0x3C)
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microwave_screen = MicrowaveScreen(display)
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microwave_screen.bootScreen()
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# Init LoRa
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lora = get_lora()
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lora.configure(freq=868.1, sf=7)
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# Init RGB LEDs
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magnetron_led = RGBLED(red_pin=48, green_pin=47, blue_pin=33)
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magnetron_led.color = RGBLED.WHITE_YELLOW
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magnetron_led.off()
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# Init UART
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uart_device = get_uart(uart_id=1, tx_pin=46, rx_pin=45)
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print(f"[Main] ESP32 initialized with ID: '{DEVICE_ID}' (Type: {deviceTypes.DEVICE_TYPES['MICROWAVE']})")
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# --- DEDICATED LORA HARDWARE THREAD ---
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def lora_hardware_thread():
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"""Runs in a separate OS thread to keep the LoRa radio in continuous RX mode."""
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last_heartbeat_time = 0
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while True:
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now = time.time()
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# 1. Send periodic heartbeat
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if now - last_heartbeat_time >= config.LORA_HEARTBEAT_INTERVAL:
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last_heartbeat_time = now
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print("\n[LoRa Thread] Sending Heartbeat...")
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if lora:
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lora.send(PING_PAYLOAD)
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# 2. Blocking 300ms RX listen window (keeps radio actively listening)
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if lora:
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paquet = lora.receive_reliable(timeout_ms=300)
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if paquet is not None:
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log(f"[LoRa Thread] New Packet Received: {paquet}")
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data_queue.put(paquet)
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time.sleep_ms(10)
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# --- COOKING STATE CALLBACKS ---
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def cooking_state_temperature_provider():
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global current_temp, last_temp, temperature_asked, uart_device
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def temp_is_none(temp):
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return temp is None or temp[0] is None or temp[1] is None
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# Return the current temperature if available,
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# otherwise return the last recorded temperature
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# and request a new reading from the WiFi board.
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if temp_is_none(current_temp):
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if temp_is_none(last_temp):
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temps = (0.0, 0.0)
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print("[CookingState] No temperature data available. Returning default (0.0, 0.0).")
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else:
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temps = [last_temp[0], last_temp[1]]
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print(f"[CookingState] Returning last known temperature: {temps}")
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# Asks the esp-wifi the temperature over UART
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if not temperature_asked:
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temperature_asked = True
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uart_device.send_as_command(UARTCommand(UARTCommandType.TEMPERATURE_REQUEST, {}))
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print("[CookingState] Requested new temperature reading from WiFi board.")
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else:
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print(f"[CookingState] Returning current temperature: {current_temp}")
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temps = [current_temp[0], current_temp[1]]
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last_temp[0] = current_temp[0]
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last_temp[1] = current_temp[1]
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current_temp[0] = None
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current_temp[1] = None
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return temps
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def cooking_state_on_state_change(state):
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print(f"[CookingState] State changed to: {state.state}")
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if state.paused or state.state == cookingState.CookingStates.DONE or state.state == cookingState.CookingStates.IDLE:
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magnetron_led.off()
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else:
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magnetron_led.on()
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# Send state updates to WiFi board and Orchestrator
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if uart_device:
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uart_device.send_as_command(UARTCommand(UARTCommandType.COOKING_STATE_UPDATE, {"state": state.state}))
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if lora:
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lora.send_reliable({"id": DEVICE_ID, "new_cooking_state": state.state})
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microwave_screen.update(cooking_state, defrost_mode)
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def cooking_state_on_refresh(state):
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# Update OLED display
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if microwave_screen:
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microwave_screen.update(state, defrost_mode)
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def cooking_state_on_pause(state):
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# If the cooking is unpaused and was in STIRRING_REQUIRED or ALERT state, we set the state back to COOKING.
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if not state.paused and (state.state == cookingState.CookingStates.STIRRING_REQUIRED or state.state == cookingState.CookingStates.ALERT):
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state.set_state(cookingState.CookingStates.COOKING)
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# TODO: send_reliable lora message to orchestrator about pause/resume state
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# --- ASYNC TASKS ---
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async def uart_polling_task():
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"""Polls UART for incoming messages from the WiFi board."""
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global cooking_state, temperature_asked
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while True:
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if uart_device and uart_device.any():
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command = uart_device.read_as_command()
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if command:
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print(f"[UART Task] Received command from WiFi Board: {command.command_type}")
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if command.command_type == UARTCommandType.COOKING_PARAMS:
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params = command.payload
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print(f"[UART Task] Cooking parameters received: {params}")
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uart_device.send_as_command(UARTCommand(UARTCommandType.TEMPERATURE_REQUEST, {}))
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cooking_state = cookingState.CookingState(
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cook_time=params["cook_time"],
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power_level=params["power_level"],
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target_temp=params["target_temp"]
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)
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cooking_state.set_temperature_provider(cooking_state_temperature_provider)
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cooking_state.set_state_change_callback(cooking_state_on_state_change)
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cooking_state.set_refresh_callback(cooking_state_on_refresh)
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cooking_state.set_pause_callback(cooking_state_on_pause)
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await asyncio.sleep_ms(200)
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cooking_state_on_state_change(cooking_state)
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elif command.command_type == UARTCommandType.TEMPERATURE_RESPONSE:
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payload = ujson.loads(command.payload)
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current_temp[0] = payload["dish_temp"]
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current_temp[1] = payload["ambient_temp"]
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temperature_asked = False
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else:
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print(f"[UART Task] Unknown command type received: {command.command_type}")
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await asyncio.sleep_ms(50)
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async def lora_process_task():
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"""Consumes packets pushed to data_queue by the LoRa hardware thread."""
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global cooking_state, defrost_mode, microwave_screen
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while True:
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while not data_queue.empty():
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paquet = data_queue.get()
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if paquet and not paquet.get("raw"):
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data = paquet.get("data", {})
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if "action" in data:
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if data["action"] == LoraCommands.TOGGLE_PAUSE:
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if cooking_state is not None:
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if cooking_state.state == cookingState.CookingStates.DONE:
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print("[LoRa Process] Cooking is done. Resetting microwave for the next session.")
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cooking_state.set_state(cookingState.CookingStates.IDLE)
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await asyncio.sleep_ms(20)
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cooking_state = None
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else:
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cooking_state.toggle_pause()
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if cooking_state.paused:
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print("[LoRa Process] Cooking paused via orchestrator command.")
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else:
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print("[LoRa Process] Cooking resumed via orchestrator command.")
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else:
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log("[LoRa Process] No active cooking state to toggle pause/resume.")
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elif data["action"] == LoraCommands.TOGGLE_DEFROST:
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print("[LoRa Process] Toggling defrost mode via orchestrator command.")
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defrost_mode = data["defrost_state"]
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microwave_screen.update(cooking_state, defrost_mode)
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await asyncio.sleep_ms(50)
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async def cooking_loop_task():
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"""Ticks the cooking state and logs information periodically without flooding output."""
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log_counter = 0
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while True:
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if cooking_state is not None:
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cooking_state.update_tick()
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log_counter += 1
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# Print log output every 5 seconds (10 ticks x 500ms)
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if log_counter % 10 == 0:
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print(f"[Cooking Task] State: {cooking_state.state}, Temp: {cooking_state.current_dish_temp}, "
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f"Paused: {cooking_state.paused}, Remaining: {cooking_state.get_remaining_time():.2f}s")
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await asyncio.sleep_ms(500)
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async def memory_cleanup_task():
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"""Periodically cleans up memory to prevent heap fragmentation."""
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while True:
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gc.collect()
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await asyncio.sleep(10)
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# --- BOOTSTRAP ---
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async def main():
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global cooking_state, defrost_mode, microwave_screen
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print("[Main] Starting application...")
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init_hardware()
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# Launch dedicated hardware thread for LoRa RX
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try:
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_thread.stack_size(16 * 1024)
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except Exception:
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pass
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_thread.start_new_thread(lora_hardware_thread, ())
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print("[Main] LoRa hardware background thread started.")
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# Launch background async tasks
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asyncio.create_task(uart_polling_task())
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asyncio.create_task(lora_process_task())
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asyncio.create_task(cooking_loop_task())
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asyncio.create_task(memory_cleanup_task())
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print("[Main] All async tasks running concurrently!")
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microwave_screen.update(None, defrost_mode)
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# Keep main task alive indefinitely
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while True:
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await asyncio.sleep(3600)
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if __name__ == "__main__":
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try:
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asyncio.run(main())
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except KeyboardInterrupt:
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print("[Main] Program stopped by user.")
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except Exception as e:
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sys.print_exception(e) |