另一种方法，可以增加两个电阻，用一个SPST开关禁止或使能电路。

As an alternative, you can add two resistors and use an SPST switch to disable or enable the circuit.

youdao

另一种方法，可以增加两个电阻，用一个SPST开关禁止或使能电路。

As an alternative, you can add two resistors and use an SPST switch to disable or enable the circuit.

youdao