# This work is licensed under the MIT license.
# Copyright (c) 2013-2026 OpenMV LLC. All rights reserved.
# https://github.com/openmv/openmv/blob/master/LICENSE
#
# Dual-Core Wake-on-Speech Example
#
# This example puts the HP core into low-power lightsleep while the HE core
# continuously listens for keywords with MicroSpeech. When the HE core hears
# "Yes", the inter-core message wakes the HP core, which blinks an LED before
# going back to sleep.
#
# The built-in MicroSpeech model only recognizes the keywords "Yes" and "No".

import time
import openamp
import machine
from machine import LED


label = None


def task_callback(src_addr, data):
    global label
    label = data.decode()


@openamp.async_remote(task_callback)
async def task1(ept):
    from ml.apps import MicroSpeech
    speech = MicroSpeech(gain_db=24)
    while True:
        l, scores = speech.listen(timeout=0, threshold=0.70)
        if l:
            ept.send(l)


# Start the HE core.
rproc = openamp.RemoteProc(0x80320000)
rproc.start()

led = LED("LED_GREEN")

while True:
    if label == "Yes":
        for i in range(5):
            led.on()
            time.sleep_ms(250)
            led.off()
            time.sleep_ms(250)
        label = None
    # Sleep the HP core. The HE core keeps listening, and the inter-core
    # message from ept.send() wakes the HP core.
    machine.lightsleep()