First, a short recap of what this project is doing: the Wi-Fi stack for the ESP32 (a popular, cheap microcontroller) is provided through a binary blob. We’re trying to reverse engineer the software and hardware to build our own open-source Wi-Fi stack. This will enable features that the current, closed source ESP32 Wi-Fi implementation does not have, for example 802.11s mesh networking. It will also improve the auditability of the code.This is the fifth article in a series about reverse engineer...