Search found 3 matches
Search found 3 matches • Page 1 of 1
- Thu Oct 10, 2013 9:36 am
- Forum: AVR Microcontrollers
- Topic: Arduino + ACS712 Current Sensor
- Replies: 7
- Views: 12519
Are you sure it's jitter? The ACS712 outputs the instantaneous current, not the RMS current. So for an AC signal, you should see it oscillating about 512. I use the 20amp version of this chip and it works really well for detecting current draw on an AC machine (240V here in Aus). I sample it at 100...
- Thu Oct 10, 2013 9:32 am
- Forum: SparkFun Product Questions
- Topic: Current sensing with ACS712 breakout
- Replies: 4
- Views: 1522
Does someone have code for arduino to measure AC current? As I understand to measure AC current Arduino need to measure positive and negative halves of 220V 50/60Hz wave, then show the results, but I do not understand how to sync arduino with grid in order to define begining and end of sin wave? Can...