In this article I will show you how to make a WiFi beacon spammer on ESP8266. Beacon spamming involves broadcasting a valid IEEE 802.11 beacon frames using fake SSIDs and MAC addresses. This educational project is hackable and easy to get running. The code is on GitHub, here. What is WiFi Beacon? WiFI beacon frames are used by … Read more
This is a short how-to guide about installing ESP8266_RTOS_SDK on Ubuntu Linux. The new version of ESP8266_RTOS_SDK (v3.0) shares the same framework with esp-idf (official development framework for ESP32). The toolchain programs access ESP8266_RTOS_SDK using IDF_PATH environment variable which can be set in ~/.bashrc file. If you’re working with both ESP8266 and ESP32 then note that toolchains are using the … Read more
This blinky example is using pure ESP8266 Non-OS SDK (v2.0.0). This project template has been tested on Ubuntu Linux. The complete code is on GitHub, here. Parts Required ESP8266 Development Module (for example based on ESP-12N, with build in LED) Software This code is written in C and can be compiled using xtensa-lx106-elf-gcc. Don’t know how to start? Please read about building ESP8266 toolchain … Read more
This is my another example of simple and inexpensive WiFi packet analyzer (also known as a WiFi sniffer). The heart of this project is ESP8266 WiFi module which is able to work in a promiscusous mode. This module allows IEEE802.11 network packets capturing for further analyzing. Because of the fact that ESP modules don’t listening on all channels at a time, additional code … Read more
This is my another “disco lights” project which is an upgraded version of ATtiny13 – dance lights with DFT. This time I used a full implementation of optimized DFT algorithm with reduced memory access to compute a power spectrum of audio signal. This version has also 3-channel lights but visual effects are much-much better! Required Parts ATtiny13 – i.e. MBAVR-1 (Minimalist Development … Read more
This version of DFT algorithm has been tested with success on a various microcontrollers (AVR – including ATtiny13, STM32 and ESP8266). The code is relatively simple and short what makes it easy to port to other programming languages / microcontrollers. In this tutorial I will open the black-box and show you some practical information about how this algorithm works and how to use … Read more
This article presents a simple example of how to control with Arduino a very cheap 28BYJ-48 stepper motor. The code is on GitHub, here. Parts Required ULN2003 driver stepper motor 28BYj-48 arduino board (i.e. Arduino/Genuino UNO) Software This code is written in C++ and can be compiled using an Arduino IDE. All information about how to compile this project is here. /** * Copyright (c) 2019, Łukasz … Read more
This experimental project shows how to build a simple PI (Pulse Induction) metal detector based on ATtiny13 / AVR microcontroller. My goals were to make a circuit as simple as possible and to use only popular / cheap electronic parts. The device has been tested with very small coil (55mm diameter, about 30 turns of 0.5 … Read more
Next Arduino blinky project. This version of “blinky” example is using Timer1 Compare Match A interrupt to make an onboard LED blink for roughly one second. The code is on Github, click here. Parts Required arduino board (i.e. Arduino/Genuino UNO) basic LED (on-board LED) Software This code is written in C++ and can be compiled using an Arduino IDE. All … Read more
Yet another Arduino blinky project. This version of “blinky” example is using Timer1 Overflow interrupt to make an onboard LED blink for roughly one second. The code is on Github, click here. Parts Required Arduino board (i.e. Arduino/Genuino UNO) Software This code is written in C++ and can be compiled using an Arduino IDE. All information about how to compile this project is here. /** … Read more