This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
请教下，如果我用单极霍尔器件，是不是N或者S感应都会触发，有指定只能S或者N感应的吗？如果是单极霍尔，是不是在霍尔正面和反面感应的磁极是不同的吗？
