New Years Circuit Challenge: Make This RFID Circuit
Updated: 2024-12-31 15:00:29
: Skip to content Hackaday Primary Menu Home Blog Hackaday.io Tindie Hackaday Prize Submit About Search : for December 31, 2024 New Years Circuit Challenge : Make This RFID Circuit 6 Comments : by Jenny List December 31, 2024 : Title Copy Short : Link Copy The Proxmark3 PCB 125kHz antenna . GNU GPL version 2, GitHub link Picture this : It’s the end of the year , and a few hardy souls gather in a hackerspace to enjoy a bit of seasonal food and hang out . Conversation turns to the Flipper Zero , and aspects of its design , and one of the parts we end up talking about is its built-in 125 kHz RFID . reader It’s a surprisingly complex circuit with a lot of filter components and a mild mystery surrounding the use of a GPIO to pulse the receive side of its detector through a capacitor . One thing