I have been doing some research for my project which requires to measure power consumption of 8 different loads. For that I plan to measure current in each line and multiply that with the voltage of single phase (220v).
I've been searching and have not been able to find a cheap current sensor. Sensors like ACS712 are available but for about $3 for one which means $24 for 8. That's way to expensive for my project.
So I was wondering, is there a way to use one current sensor, such as ACS712, to measure current in 8 loads (working on the same phase).
I am using arduino for the project.