硬件设置小工具，电阻值计算excel，表列出了常用电阻值，只需要输入电源电压，需要电压俩个电压值，就可以算出分压电阻，误差5 以内会有绿色标注-Hardware settings gadgets, resistance calculation excel, table lists the commonly used resistance, only need to input power supply voltage, the need to voltage two voltage values, you can calculate the voltage divider resistance, error within 5　of the green mark