This is one of those projects (or instead products), that can be used for nefarious purposes, so either adhere to all things legal or don’t, the choice is yours. With that said, maker Travis Lin teamed with GitHub user Stefan Kremser to develop the DSTIKE Deauther Wristband V2 — an ESP8266-equipped gadget that allows you to scan for Wi-Fi networks or devices and perform a variety of actions to them, including tests, attacks, and gaining control.
The Deauther Wristband is outfitted with a pair of PCBs with the bottom hosting the ESP8266 module, micro USB port, 600mAh LiPo coin battery, onboard ceramic antenna (with optional external antenna), and a 3-way momentary slide switch.
The top PCB connects to the bottom via flex cable, and features a JST battery connector, highlight LED, on/off switch, reset button, charging LED, flash button, user programmable button, and a 1.3-inch OLED display. Lin states the DSTIKE uses only around 80mA of power, giving you about 7-hours of work time before needing a recharge.
The DSTIKE Deauther Wristband uses custom Deauther software to perform various functions, which are accessed using the slide switch. The primary ‘Attack’ function takes advantage of security flaws in the 802.11w Wi-Fi standard, which was fixed back in 2009, however (code author of the wristband) Stefan Kremser states few companies have implemented the fix into their devices and software. Those interested in DSTIKE Deauther Wristband can pick one up for $40 on Lin’s Tindie page.