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The battery quantity was increased to 16 to achieve a 24VDC supply. The maximum read range of the reader is dependent on the supply voltage. Enhancements include: Higher Operating Voltage
Serial cloner library code#
Additionally, an alternate display was chosen and the Arduino code was modified to utilize the stock SD card library. While the Bishop Fox design is great, we found that a few enhancements made it more user friendly. This information can then be used to clone the data to a writable 125kHz card. Additional circuitry is installed to collect the card data and store it on a microSD card. Local power is provided by multiple AA batteries. The listed read range is a maximum 29 inches, which is dependent on credential type, operating voltage, and proximity to ferrous and non-ferrous metals. The device may be concealed within a backpack, messenger bag, or other concealment method of your choosing. All that’s needed is your time and a basic set of tools.įor the unfamiliar, the card cloner utilizes a long-range card reader, the same model seen on parking garage entrances and secured facilities, to gather the card ID and facility code of LF 125kHz proximity cards from unwitting targets.
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This post will provide you with all that is needed to fully construct a low-frequency (LF) card cloner, including printable drill templates, PC board (PCB) manufacturing files, and updated microcontroller code. While an overall design was created, and many others have discussed building such a device, doing so can prove to be challenging. This post isn’t attempting to present new research or a new device-that work has already been done, a la Bishop Fox. By Jason Ashton in Hardware Security Assessment, Penetration Testing, Physical Security, Security Testing & Analysis