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CR95HF: Tag removal detection

Question asked by Emitter on May 6, 2014
Latest reply on May 19, 2014 by ST NFC
Detecting the presence of tags with the CR95HF works fine. But is it possible to detect the removal of a tag within the antenna field?

I was thinking about polling the Tag Detect command with a very short timeout. As long as the  wakeup event is "tag" and the timeout doesn't occur the tag is still present. But for my application power consumption is very important, meaning I want to stay in Sleep as long as possible.

What’s the best way to implement the detection of a tag removal?