Hi, my name is fadhil from malaysia. Fyi I use voltage sensor module ZMPT101B to measure 240v from ac source. My problem is I don't have any idea how to connect from source to the sensor module and then to the arduino. Can I just connect direct from the source or I must built resistor circuit before connected to the sensor module. I have tried connect just directly from source but the indicator on the sensor module which is red light does not function at all. Can you help me? Thanks in advance!
Do you have a link to the manual/data sheet of this sensor? It probably tells you all you need to know.