from mcu.anheng_scale import AnhengScale
import time

if __name__ == "__main__":
    scale = AnhengScale(baudrate=9600)

    # 1.列出所有串口，找到你的COM口
    ports = scale.get_all_com_ports()
    print("可用串口列表：")
    for item in ports:
        print("item info ", item)
        print(f"device:{item['device']}  desc:{item['desc']}")
    if not ports:
        print("没有找到可用串口")
        exit()
    # 2.填入你的串口，例如 COM3
    com_port = "COM3"
    ok = scale.connect(com_port)
    if not ok:
        print("串口打开失败，请检查接线与COM号")
    else:
        print(f"已连接 {com_port}")
        try:
            while True:
                data = scale.get_latest()
                print(
                    f"稳定:{data['stable']} |模式:{data['mode']} |原始g:{data['raw_grams']:.2f} |去皮后g:{data['net_grams']:.2f}")

                # 示例：按条件软件去皮（需要秤稳定）
                # res = scale.software_tare()
                # if res:
                #     print("软件去皮成功")

                # scale.hardware_tare() #硬件去皮，秤要设COMMOD=5
                # scale.hardware_zero() #硬件归零

                time.sleep(0.5)
        except KeyboardInterrupt:
            print("程序退出")
        finally:
            scale.disconnect()