Rasberry Pi Project needs a Non-invasive current sensor but all of them are those 3.5mm jacks? How do i connect them?

[_Dawnte_]

The title says it all ready, I plan on making my own home socket power monitor using my rpi but id much rather not use a module where i'd have to handle live wire so I have to do with those non-invasive currents sensors, however they have audio outpus ....is there a module that i could use for me to get that data from the sensor to my pi pins?

[mariushm]

Why are you afraid of that "audio output" connector?

The module should tell you the pinout , which is probably  ground, data and clock for an isolated serial output or something like that.  If it's not isolated, run it through an isolator chip (optocoupler, whatever) , which should be very cheap.

You can buy audio jacks, you can buy stereo - stereo cables and cut them in the middle ... make your own cable. 

 

Anyway, another option would be to buy a multimeter with data logging, and read the output from the multimeter into your pi.

 

 

 

 

[akio123008]

3 hours ago, _Dawnte_ said:

id much rather not use a module where i'd have to handle live wire so I have to do with those non-invasive currents sensors

You need to handle the live wire anyway to monitor the voltage. Might as well get an off the shelf power/energy meter.

[Hackentosher]

It sounds like you're looking for a hall effect current probe. I have never seen one with an audio style connector, but it will probably output an analog signal which a Pi can't natively read. You'll need to supply your own ADC to read that analog signal and then do some math to convert it to a current.

[akio123008]

19 hours ago, Hackentosher said:

you're looking for an hall effect current probe

He's probably after some current transformer. Hall effect sensors are less accurate so you'd normally only use those for DC (when a current transformer is no option).

 

Regardless of what sensor this is about, to make a power meter you also need to register the voltage, so you're going to have to connect to a live wire anyway, so I don't really see the point of a non-invasive sensor.