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初级

解析ESP32继电器状态字段

未完成
初级参考 完整示例代码供参考，建议自己理解后重新输入 
def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd, json
    devs_csv = open_url("https://data.zuihe.com/dbd/ms-devhub/state_00/devices.csv").read()
    devs = pd.read_csv(StringIO(devs_csv))
    STATUS_MAP = {0:'off', 1:'on', 2:'error', 3:'initializing'}
    def parse_relay_status(payload_str):
        p = json.loads(payload_str)
        status_code = p.get('relay_status', 0)
        return {'device_id':p['device_id'],'relay_status':STATUS_MAP.get(status_code,'unknown'),'raw_code':status_code}
    payloads = [
        '{"device_id":"ESP-001","timestamp":1748736000,"relay_status":1}',
        '{"device_id":"ESP-002","timestamp":1748736001,"relay_status":2}',
        '{"device_id":"ESP-001","timestamp":1748736002,"relay_status":0}',
    ]
    for p in payloads:
        r = parse_relay_status(p)
        print(r['device_id'] + ": relay=" + r['relay_status'] + " (code=" + str(r['raw_code']) + ")")

示例

输入
solve()
期望输出
ESP-001: relay=on (code=1)
ESP-002: relay=error (code=2)
ESP-001: relay=off (code=0)
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