Yes, those sensors will work with Arduino.
It is so simple that no library is required.
float current = ((5.0/1024.)*AnalogRead(A0)-2.5)/scalefactor;
This is all that is required to read DC current. 1. Connect the sensor output to A0, Vcc to 5V and GND to GND.2. CodeCode: [Select]float current = ((5.0/1024.)*AnalogRead(A0)-2.5)/scalefactor;"scalefactor" comes from the data sheet = 0.011 for the WCS5100.The above won't work for AC current. You will need to sample rapidly and calculate rms values over one AC cycle. Study this tutorial for guidance.