from machine import Pin, ADC
from max9814_mic import MAX9814Mic

# 初始化ADC（示例：ESP32 GPIO26对应ADC0）
adc = ADC(26)
# 初始化增益控制引脚
gain_pin = Pin(6, Pin.OUT)
# 初始化麦克风实例
mic = MAX9814Mic(adc=adc, gain_pin=gain_pin)

raw_value = mic.read()
print(f"ADC原始值: {raw_value}")

normalized_val = mic.read_normalized()
print(f"归一化值: {normalized_val:.3f}")

voltage = mic.read_voltage(vref=3.3)
print(f"信号电压: {voltage:.3f}V")

mic.set_gain(high=True)  # 高增益对应60dB，低增益对应40dB
print("当前增益状态: 高增益")

baseline = mic.calibrate_baseline(samples=200)
print(f"环境噪声基线: {baseline}")

is_sound = mic.detect_sound_level(threshold=baseline + 5000, samples=10)
print(f"是否检测到声音: {is_sound}")

def test_basic_reading() -> None:
    time.sleep(3)
    print("FreakStudio:max9814_mic_driver test start")
    print("=== Basic Reading Test ===")
    adc = ADC(26)
    mic = MAX9814Mic(adc=adc)
    print("Microphone initialized on ADC0 (GP26)")
    print("State:", mic.get_state())
    print("Reading values for ~10 seconds...")
    try:
        for i in range(100):
            raw_value = mic.read()
            normalized = mic.read_normalized()
            voltage = mic.read_voltage()
            print(f"[{get_formatted_time()}] Raw:{:5d} | Norm:{:.3f} | Volt:{:.3f}V".format(
                raw_value, normalized, voltage
            ))
            time.sleep(0.5)
    except KeyboardInterrupt:
        print("\n[{}] Basic test interrupted".format(get_formatted_time()))

def test_with_gain_control() -> None:
    time.sleep(3)
    print("=== Gain Control Test ===")
    adc = ADC(26)
    gain_pin = Pin(6, Pin.OUT)
    mic = MAX9814Mic(adc=adc, gain_pin=gain_pin)
    try:
        # 低增益模式（40dB）
        print("=== LOW GAIN mode (40dB) ===")
        mic.set_gain(False)
        print("State:", mic.get_state())
        for i in range(50):
            print(f"[LOW] {mic.read():5d}", end=" ")
            if (i + 1) % 5 == 0:
                print()
            time.sleep(0.6)

        # 高增益模式（60dB）
        print("\n=== HIGH GAIN mode (60dB) ===")
        mic.set_gain(True)
        print("State:", mic.get_state())
        for i in range(50):
            print(f"[HIGH]{mic.read():5d}", end=" ")
            if (i + 1) % 5 == 0:
                print()
            time.sleep(0.6)
    except KeyboardInterrupt:
        print("\n[{}] Gain test interrupted".format(get_formatted_time()))

def test_sound_detection() -> None:
    time.sleep(3)
    print("=== Sound Detection Test ===")
    adc = ADC(26)
    mic = MAX9814Mic(adc=adc)
    print("Calibrating baseline noise level...")
    baseline = mic.calibrate_baseline(samples=200)
    threshold = baseline + 5000
    print(f"Baseline: {baseline} | Threshold: {threshold}")
    print("Make some noise near the mic! (Ctrl+C to stop)")
    try:
        silent_count = 0
        while True:
            current_value = mic.read()
            is_sound = mic.detect_sound_level(threshold=threshold, samples=10)
            if is_sound:
                peak = mic.get_peak_reading(samples=20)
                print(f"[{get_formatted_time()}] SOUND! Current: {current_value} Peak: {peak}")
                silent_count = 0
            else:
                silent_count += 1
                if silent_count % 50 == 0:
                    print(f"[{get_formatted_time()}] Silent... Current: {current_value} (Th: {threshold})")
            time.sleep(0.6)
    except KeyboardInterrupt:
        print("\n[{}] Detection stopped".format(get_formatted_time()))

MIT License

Copyright (c) 2026 FreakStudio

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.