Hacker Con Badges

Series

Queen City Con

Cincinnati community security-conference lineage run by Cannon Fodder Security, whose official GitHub organization publishes badge schematics, firmware forks, and cases. The catalogue starts with the 0x4 LoRa mesh badge; the 0x3 FM-radio and Geiger-counter badges and the 0x2 badge backing are recorded as candidates until their editions are documented.

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Events

Queen City Con 0x4 2026 · United States · 1 badge(s)

Lineage Notes

Cincinnati community security-conference lineage run by Cannon Fodder Security, whose official GitHub organization publishes badge schematics, firmware forks, and cases. The catalogue starts with the 0x4 LoRa mesh badge; the 0x3 FM-radio and Geiger-counter badges and the 0x2 badge backing are recorded as candidates until their editions are documented.

Use the badge cards below for sourced hardware, software, lore, issues, add-ons, and author credits.

Badges

Seeded records

Queen City Con 0x4 · 2026

Queen City Con 0x4 Badge

nRF52840 LoRa mesh badge in standard, supporter-with-keyboard, and DIY kit versions

The electronic badge family of Queen City Con 0x4, Cincinnati, November 13-15, 2026. The organizers' schematic export covers a triangular standard badge, a supporter badge with a CardKB-style keyboard, and a DIY kit badge, all built around an nRF52840 and an Ai-Thinker Ra-01SH SX1262 LoRa module, with connections for an I2C OLED, a keyboard, and GPS, plus a buzzer and indicator LEDs. The firmware guide notes that fitted parts differ from badge to badge. A third-party design document says the badge ships with Meshtastic, while the Offband MeshCore fork, which the conference organization forked on November 8, 2026, publishes a dedicated QCC Badge companion firmware.