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Step 6Testing
To test the circuit hold the antenna right up to the reader (go ahead and touch it to the reader for the first test), if everything's right you should see the tag ID you're hoping to see. If not (and you're sure the sketch is uploaded properly and the circuit is connected correctly) start adding and removing winds from the coil and retesting it. It should be somewhere in the 120-140 range with the green Radio Shack wire I used.
Once it's working at really short ranges (touching the reader) you can mess with the coil some more to tune the antenna better and you should be able to get a range of a few inches.
Once it's working at really short ranges (touching the reader) you can mess with the coil some more to tune the antenna better and you should be able to get a range of a few inches.
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