Hi. I see there has been an interesting discussion here. With the ACS712 I guess I can eliminate the optoislator, but what about the filters for compensating for "dirty track" that may cause flickering in my output signal? Would I then need an Arduino to capture the output and then perform my signal logic via software? I was once a software engineer so this is not a daunting task for me. This was something I considered but decided against given the complexity of my signal modules and the very fact that Arduino cannot handle the number of inputs and output needed for some of my modules, let alone issues when wiring up an Arduino (i.e. solder bridges destroying inputs/outputs). What I see here is a possible software solution which I ruled out, however will the ACS712 provide the needed output voltage to drive my signal logic if I go with the hardware solution (i.e. NAND gates) that will be part of my design. My guess is that it does not.
I know that the 1.4 Volt "tax" is a downside. I am reluctantly willing to live with that.
