CoolKidsBadge (2024)

Important

This README is a work in progress. Come back later to be sure it's up to date 😀

The CoolKid'sBadge is a convention electronic badge created for the LeHack2024 Cyber-security convention in Paris(Fr) (not affiliated), containing an ESP32S3 with 16Mb Flash, a NRF24L01 Slot, a FlipperZero interface, 7 LEDs and some pads. It can be powered directly from the GPIO Port of the FlipperZero, or via the USB C Connector.

History

This project started by 2023, but could not be ready in time for LeHack2023. So the project continued live on twitch at https://twitch.tv/tixlegeek

Compiling

The ESP32S3 firmware needs to be compiled using espressif's ESP-IDF v5.2 and higher.

## Using the badge

First, connect the power supply, either the FlipperZero with 5V GPIO enabled, or using the USB C Port.

You should be able to connect to the CoolKid'sBadge using the procedural password you got, or generated using the dedicated script.

Once connected, navigate to https://192.168.4.1 to start using your Badge like a Cool Kid you are 😎

Hardware

Note

The PCB is not shared as it's specific to LeHack2024 🏴‍☠️

All the hardware have been created using Kicad ❤️. Everything should be available inside the Cyberpunk.Company's submoduled Kicad Library.

Tools

The CoolKid'sBadge comes with a lot of little tools aimed towards Prototyping, Reverse engineering... But it's still a conference badge :)

WiFi Configuration:
- STA
- AP (always ON, enabling Configuration)
i2C Tools

The embedded I2C Tool allows you to scan devices. It also allows you to write and read registers from any I2C components.
LED configurator

LED animation can be chosen using the embedded tool, in the LED menu.
GPIO

There's 10 GPIO Pads on the rear of the badge, that can be monitored and controlled using the GPIO Tool.

AUTHOR

@tixlegeek tixlegeek@cyberpunk.company

tixlegeek/CoolKidsBadge-2024