Hacking WiFi with a 3$ Jammer

In this video for Cr0w’s Place we examine how we can modify a WiFi IoT device, into a powerful WiFi Jammer. A WiFi Jammer is a portable WIFI signal blocker that can disable the WIFI signal effectively. The module that we can use is the ESP8266, and I choose the NodeMCU v1.0 that you can easily find in ebay, for 3$ or so.

Keep in mind that this is NOT a frequency jammer. It is just a deauthing device.

The process of flashing the device is pretty simple. First of all, you download the current release of the firmware from here and upload using the ESP8266 flash tool of your choice. I recommend using the nodemcu-flasher. If this doesn’t work you can also use the official esptool from espressif. But for more information and problem solving just go to the creators github here, so a big shout out goes to spacehuhn. 🙂

Links to buy NodeMCU:



This project is a proof of concept for testing and education. Please act responsibly.

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Thank You For Watching.:)