es7210_driver/
├── code/
│   ├── es7210.py         # 核心驱动文件（I2C 寄存器控制）
│   └── main.py           # 测试示例代码
├── package.json          # 包描述文件
├── LICENSE               # MIT 许可证
└── README.md             # 本说明文档

import time
from machine import I2C, Pin
from es7210 import ES7210, DEFAULT_ADDRESS

I2C_SCL_PIN = 22
I2C_SDA_PIN = 21
I2C_FREQ = 400000
I2C_BUS_ID = 0

I2S_BCK_PIN = 26
I2S_WS_PIN = 25
I2S_SD_PIN = 33
I2S_ID = 0

device = None

time.sleep(3)
print("FreakStudio: Using ES7210 audio ADC I2C control driver ...")
print("NOTE: This driver is cold-generated and NOT hardware verified")

i2c = I2C(I2C_BUS_ID, scl=Pin(I2C_SCL_PIN), sda=Pin(I2C_SDA_PIN), freq=I2C_FREQ)

devices = i2c.scan()
if not devices:
    raise RuntimeError("No I2C device found on bus")
print("I2C devices found: %s" % [hex(d) for d in devices])
if DEFAULT_ADDRESS not in devices:
    raise RuntimeError("ES7210 not found at expected address 0x%02X" % DEFAULT_ADDRESS)
print("ES7210 found at I2C address 0x%02X" % DEFAULT_ADDRESS)

device = ES7210(i2c, sample_rate=16000, bits_per_sample=16, mic_gain_db=24, tdm=False, debug=False)

try:
    device.self_test()
    print("ES7210 I2C self-test passed")
except RuntimeError as e:
    print("ES7210 I2C self-test failed: %s" % str(e))
    print("Continuing with configuration anyway (cold-generated code)")

print("ES7210 I2C configuration completed")
print("Audio I2S data stream should be set up separately with machine.I2S(mode=I2S.RX)")

try:
    from machine import I2S
    audio_in = I2S(
        I2S_ID,
        sck=Pin(I2S_BCK_PIN),
        ws=Pin(I2S_WS_PIN),
        sd=Pin(I2S_SD_PIN),
        mode=I2S.RX,
        bits=16,
        format=I2S.STEREO,
        rate=16000,
        ibuf=4096,
    )
    print("I2S audio input initialized")
except ImportError:
    print("machine.I2S not available on this platform")

try:
    while True:
        time.sleep_ms(100)

except KeyboardInterrupt:
    print("Program interrupted by user")
except OSError as e:
    print("Hardware communication error: %s" % str(e))
except Exception as e:
    print("Unknown error: %s" % str(e))
finally:
    print("Cleaning up resources...")
    if device is not None:
        device.deinit()
    device = None
    print("Program exited")