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martincornu / rfid_readers_puzzle

A player place 5 objects with rfid tag in it in order to open a door.
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read tags with multi rfid readers troubles #1

Open martincornu opened 4 years ago

martincornu commented 4 years ago

When there are several RFID readers (>=2) there are problems with tag detection. Tags cannot be detected on all readers at the same time, or even some of them do not work at all.

This is a known problem (see this issue).

Using a stabilized power supply to power the readers (+ jump wires 10 cm) works without any problems.

martincornu commented 4 years ago

Test with 4 rfids readers at the same time with a stabilized power supply directly (3.3V) and test with stabilized power supply on the converter modulator (12V to 3V3): it works but randomly one of the readers will not detect the tag and then detect it again quickly (1 sec).