Hi. I´m working with a ACS758LCB-100B (100A./ Bidirectional/ 20 mv/A sensibility). When I have to measure a current of 0.90A (DC) i get on Arduino (analogRead ()) the value 400 (0-1023). The Reference Volts= 5V. At repose i get vcc / 2 (530). The value decreases instead of increasing although you…

ACS758 current sensor

robtillaart November 12, 2012, 8:34pm 5

90MV.

I assume 90 mV