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Reverse engineering a wireless burglar alarm

Posted on Monday, July 1st, 2013 in digital radio data, hacks, reversed, RF, wireless by the machinegeek

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Cybergibbon has been working on reversing the digital protocol used by a wireless alarm system he recently acquired. He began by observing the alarm sensor’s signal using first an RF Explorer, then using RTL-SDR and SDR# to record the signal, which he analyzed with Audacity. Next, he cracked open the sensor itself to investigate the circuit, finding a TI CC1150 transmitter. From there he analyzed the SPI signal between the sensor board’s MCU and the CC1150, with the ultimate goal of developing a circuit and code to emulate the alarm sensor’s RF output.

You can find the eight steps (and counting) in this odyssey at Cybergibbons’ blog.

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This entry was posted on Monday, July 1st, 2013 at 4:54 am and is filed under digital radio data, hacks, reversed, RF, wireless. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

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