micro python I2S

MicroPython支持I2S（Inter-IC Sound）接口。I2S是一种数字音频传输协议，常用于连接音频设备，如麦克风、音频编解码器和音频放大器等。

在MicroPython中，你可以使用I2S模块来控制I2S接口。以下是使用MicroPython的I2S模块进行基本配置和操作的示例代码：

import machine

# 配置I2S接口
i2s = machine.I2S(
    mode=machine.I2S.MASTER,
    sample_rate=44100,
    bits=machine.I2S.BITS16,
    channels=machine.I2S.MONO,
    format=machine.I2S.PCM,
)

# 播放音频数据
audio_data = b'\x00\x01\x02\x03\x04\x05\x06\x07'
i2s.write(audio_data)

# 关闭I2S接口
i2s.deinit()

在上面的示例中，我们首先使用`machine.I2S`类创建一个I2S对象，并通过参数进行配置。然后，我们可以使用`write`方法向I2S接口写入音频数据。最后，使用`deinit`方法关闭I2S接口。

请注意，以上示例仅为基本的配置和操作示例，实际应用中可能需要根据具体情况进行进一步的配置和处理。你可以根据自己的需求调整参数和功能。

希望这能帮助到你！如果有任何其他问题，请随时提问。

相关问题

Write a function named dl_to_ld to split a given dictionary of lists into lists of dictionaries. For example, if d = {'Macro': [88, 89, 62, 95], 'Micro': [77, 78, 84, 80]}, dl_to_ld(d) should return [{'Macro': 88, 'Micro': 77}, {'Macro': 89, 'Micro': 78}, {'Macro': 62, 'Micro': 84}, {'Macro': 95, 'Micro': 80}]

Here's a Python implementation of the dl_to_ld function:

def dl_to_ld(d):
    # Get the keys of the dictionary
    keys = list(d.keys())
    
    # Get the length of the lists in the dictionary
    n = len(d[keys[0]])
    
    # Initialize a list of dictionaries
    ld = []
    
    # Loop over the length of the lists
    for i in range(n):
        # Initialize a new dictionary for each item in the list
        item = {}
        
        # Loop over the keys of the dictionary
        for key in keys:
            # Add the corresponding value to the new dictionary
            item[key] = d[key][i]
        
        # Append the new dictionary to the list of dictionaries
        ld.append(item)
    
    return ld

This function first gets the keys of the input dictionary and the length of the lists in the dictionary. It then initializes an empty list of dictionaries, and loops over the length of the lists in the dictionary. For each item in the list, it initializes a new dictionary and loops over the keys of the input dictionary, adding the corresponding value to the new dictionary. Finally, it appends the new dictionary to the list of dictionaries and returns the list.