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Achievements

Achievement: QuickdrawAchievement: Pull Sharkx2Achievement: YOLO

Achievements

Achievement: QuickdrawAchievement: Pull Sharkx2Achievement: YOLO

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@Espilon-Net

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Eun0us/README.md
Typing SVG

Write-ups   Espilon

👾 About Me

  • 🏛️ President of Espilon, association dedicated to embedded, IoT & OT cybersecurity
  • 🔌 Hardware hacker: ESP32/FreeRTOS, RF, BLE, UART, SPI/I2C
  • 🎯 Hardware & IoT CTF player, ex challmaker @NeverHack
  • 🏴‍☠️ Student at Ecole 2600

ε Espilon

French non-profit (loi 1901) dedicated to embedded systems, IoT & OT cybersecurity

espilon.net — Espilon brings together enthusiasts around embedded security research, open-source development and hardware CTF events.

Firmware & Tools
ESP32 · FreeRTOS · C
Modular C2
Open-source

CTF Platform
Hardware · IoT · OT
ESP32 Challenges
Write-ups included

Docs & Blog
Firmware analysis
Protocol reversing
IoT Research

Goals: embedded research · open-source · CTF · events · community

💼 Espilon is looking for sponsors — if you want to support embedded security research and hardware CTFs, reach out: eun0us@proton.me

🛠️ Other Projects

Shell-ESP32
Interactive shell on ESP32: WiFi scan/sniff, ARP scan, ping, TCP proxy.

com-at
Universal AT firmware for ESP32-C6: WiFi, BLE NimBLE, custom GATT, OTA. Compatible with industrial modules.

Hardware WU
Hardware & IoT CTF write-ups: PwnMe, ECW and more.

⚙️ Stack

Embedded
C ESP-IDF FreeRTOS Arduino

Languages
C Python Bash

Protocols & Interfaces
WiFi BLE UART SPI I2C RF GPRS

Infra
Docker Linux Nginx

🚩 CTF Write-ups

Espilon CTF 2026 - Write-ups
Write-ups from the Espilon CTF challenges: Hardware, IoT, OT, ESP32.

Hardware & IoT - External CTFs
PwnMe CTF 2025, ECW CTF 2025: Hardware & IoT challenges.

📊 Stats

📫 Contact

Discord   Email

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  1. Shell-ESP32 Shell-ESP32 Public

    This project is based on esp32 I implement esp_console to get an interactive shell and i dev my custom command on components folders

    C 1 1

  2. CTF-WU CTF-WU Public

    Eun0us CTF write-up

    3

  3. Epsilon-ESP32-Scanner Epsilon-ESP32-Scanner Public

    Epsilon is a versatile network monitoring tool designed for troubleshooting.

    C++ 1

  4. dvid-security/com-at dvid-security/com-at Public

    Firmware of ESP-C6 based on ESP-AT.

    C 2 1