CampZone 2019 Badge
Badge.Team Hatchery and RGB matrix badge
A Badge.Team firmware badge with a documented app-development workflow, Hatchery submission path, hardware-mod instructions, OTA setup, and post-event behavior notes.
Tag dossier
OTA
Badge records tagged with OTA, across Finland, Netherlands, Ukraine.
NoNameCon 2019 NoNameBadge
Ukrainian ESP32 badge and CTF platform
A Ukrainian NoNameCon 2019 electronic badge built by TechMaker around an ESP32 platform with Wi-Fi/Bluetooth, OLED display, LEDs, capacitive input, OTA firmware, SpyNet backend interaction, and a six-flag badge CTF.
Disobey 2026 Badge
ESP32-S3 MicroPython game badge
A Finnish Disobey badge built around ESP32-S3, a 1.9-inch TFT display, SK6812MINI RGB LEDs, joystick/buttons, MicroPython game firmware, OTA setup, web flashing, badge competitions, and a public hardware/firmware repository.