RFID payment ... the whole card. Once you have your chip, you just need to mount it into a ring. [David] has designed a 3D printable frame (if you’ve got a high-resolution SLA machine, that ...

To create a paper RFID sniffer, you start by printing the image out on a ... the sniffer can be connected to a USB sound card rather than your machine’s primary sound hardware, and still come ...