Buy hardware devices to exploit and hack IoT and embedded devices. Interact over UART, SPI, JTAG, I2C, GPIO etc in an easy and systematic way.
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RTL-SDR BLOG V3 USB Dongle with Dipole Antenna Kit - WRL-22957 - SparkFun Electronics
Attify Store - YardStick One
Attify Store - SDR for Pentesters
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HackRF One - Great Scott Gadgets